Biotopes de l’Australasie
Cette playlist YouTube vous emmène dans les biotopes d’eau douce d’Australie, de Mélanésie, de Micronésie, de Nouvelle-Zélande, de Papouasie-Nouvelle-Guinée, de Polynésie et de Papouasie occidentale. Cette sélection d’images de la nature soigneusement choisie capture les rivières, les ruisseaux, les lacs et les marécages de cette vaste région dans leur forme pure. Vous voyez comment la vie se déroule sous la surface de l’eau : les poissons qui se cachent parmi les racines et les rochers, les bancs qui traversent les cours d’eau limpides et les jeux d’ombre et de lumière dans les eaux tropicales.
Les vidéos offrent un aperçu unique d’écosystèmes souvent difficiles d’accès, mais qui abritent une biodiversité d’une richesse sans précédent. Des rivières de la forêt tropicale de Papouasie-Nouvelle-Guinée aux ruisseaux de montagne de Nouvelle-Zélande, chaque clip montre comment le paysage, la qualité de l’eau, la flore et la faune locales sont parfaitement adaptés. Ces images ne sont pas seulement belles à regarder, elles contribuent également à une meilleure compréhension de l’importance de ces habitats fragiles.
Cette playlist est destinée aux amoureux de la nature, aux biologistes, aux aquariophiles et à tous ceux qui souhaitent en savoir plus sur les biotopes d’eau douce en Océanie. En montrant des images réelles de la nature – sans interventions ou environnements artificiels – les vidéos offrent une expérience authentique et éducative. Elles nous rappellent à quel point ces habitats sont précieux et uniques, et pourquoi il est essentiel de les protéger.
Dans la barre de recherche ci-dessous, vous pouvez rechercher uniquement cette liste de lecture :
Brown Tree Frog (Litoria ewingii) tadpoles
Also known as the Southern Brown Tree Frog, this is a widespread and common species found across a wide variety of habitats in south-eastern Australia. It is also commonly found ...in suburban areas.
Although the peak breeding times are in spring and autumn, males can be heard calling at any time of the year.
The tadpoles in this video where filmed in a roadside pool near Scottsdale in north-eastern Tasmania.
© Greg Wallis
http://www.gregwallis.comShow More
Brown Tree Frog (Litoria ewingii) tadpoles
Also known as the Southern Brown Tree Frog, this is a widespread and ...
Also known as the Southern Brown Tree Frog, this is a widespread and common species found across a wide variety of habitats in south-eastern Australia. It is also commonly found ...in suburban areas.
Although the peak breeding times are in spring and autumn, males can be heard calling at any time of the year.
The tadpoles in this video where filmed in a roadside pool near Scottsdale in north-eastern Tasmania.
© Greg Wallis
http://www.gregwallis.comShow More
Native Fish: Barred Galaxias (Galaxias fuscus) in the Goulburn River catchment
The beautiful Barred Galaxias (Galaxias fuscus) is a critically ...
The beautiful Barred Galaxias (Galaxias fuscus) is a critically endangered small native freshwater fish found in the headwaters of the Goulburn River in Victoria. Due largely to it's very ...restricted distribution and the adverse impacts of introduced predatory trout, the few remaining populations of Barred Galaxias are heavily fragmented and isolated from one another. This means that single populations are particularly vulnerable to threats from wildfires, siltation and logging, with no way of that population being re-established should it go locally extinct.
Barred Galaxias are listed as a Threatened species by the Victorian Government and as a Critically Endangered species by the IUCN. As such they are afforded full protection and cannot be taken from the wild or kept in captivity (Flora and Fauna Guarantee Act 1988). Their survival into the future depends upon the protection of the towering forest giants that surround the clear cool streams of the mountains, and on ongoing measures to stop the upstream spread of introduced trout.
Recently I had the chance to explore some of the remaining beautiful tall Mountain Ash (Eucalyptus regnans) forests which hopefully soon will form part of the proposed Great Forest National Park. I came across a small creek and after spotting a fish decided to use my gopros to try and record some footage. Although the cameras were only in the creek for around 45 minutes or so, I was thrilled to download the footage at home and see the remarkable amount of fish activity caught on camera. Using a remote camera is a bit hit and miss as often you only get a fish swim past occasionally and sometimes not at all, but any activity you get tends to be much more natural than the flurry of activity you get when a bait is used. No baits were used in this video but otherwise the technique is similar to a BRUV.
This video represents an edited version of some of the highlights that were caught on camera.
You can see an unedited single 20 minute video clip here, but grab a coffee first!
http://www.youtube.com/edit?o=U&video_id=ZndDmqmwuJI
Best watched in HD in full screen mode.
#valleyofthegiants
For more information on Barred Galaxias see the Fishes of Australia website:
http://www.fishesofaustralia.net.au/home/species/1668
CAAB Taxon Code: 37102023
For information, tips and tricks for using gopros in shallow water see my kneedeepvideo blog below:
http://kneedeepvideo.blogspot.hk/2015/12/welcome-to-knee-deep-shallow-water.html
Please throw your support behind the establishment of the Great Forest National Park and put an end to old growth logging
http://www.greatforestnationalpark.com.auShow More
Native Fish: Western Rainbowfish (Melanotaenia australis), Finniss River, NT.
Western Rainbowfish (Melanotaenia australis) are native to the ...
Western Rainbowfish (Melanotaenia australis) courtship behaviour in the wild
Western Rainbowfish (Melanotaenia australis) are native to the ...
Western Rainbowfish (Melanotaenia australis) are native to the freshwaters in the north of Western Australia and the western part of the Top End. These fish were filmed in the upper ...reaches of the Finniss River near Batchelor in the Top End of the Northern Territory.
As an aside, at 01:10 in near the left top corner you can see a small shrimp swimming to join another shrimp already resting on a partially submerged leaf. The weight of the extra shrimp sinks the leaf, until a few seconds later when the shrimp hops off and the leaf rises again.
For more information on Western Rainbowfish see:
Fishes of Australia website:
http://www.fishesofaustralia.net.au/home/species/3047
Rainbowfish at ANGFA Queensland:
http://rainbowfish.angfaqld.org.au/Australis.htm
CAAB Taxon Code: 37245012
http://www.gregwallis.comShow More
Sydney Crayfish (Euastacus australasiensis)
The Sydney Crayfish (Euastacus australasiensis) is one of two species ...
The Sydney Crayfish (Euastacus australasiensis) is one of two species of freshwater spiny crayfish found in the Sydney region. Although they are often referred to as Yabbies, they are distinctively ...different from the true Yabbie (Cherax destructor). Along the bottom edge of the claws in all Euastacus or spiny crayfish there are spines present, whereas in other types of freshwater crayfish this edge is completely smooth; it's an easy way of distinguishing them yabbies.
There are more than 50 different species of Euastacus crayfish endemic to the east coast of Australia. The Sydney Crayfish has a limited distribution in natural areas close to Sydney including the Blue Mountains.
The Sydney Crayfish is often found in smaller and more open creeks than it's much larger relative the Giant Sydney Crayfish (Euastacus spinifer). Sometimes they do occur together as was the case in the video above; however here, being much smaller, this crayfish was keeping well out of the way by remaining very close to it's crevice/burrow on the edge of the pool that was being patrolled by it's much larger cousins.
CAAB Taxon Code: 28 795010
This video was filmed in Ku-ring-gai Chase National Park, Sydney, NSW, Australia, in April 2016.
© Greg Wallis 2016
http://www.gregwallis.comShow More
Native fish: Pacific Blue Eye (Pseudomugil signifer), Sydney
The Pacific Blue-eye is a beautiful small native fish found in ...
The Pacific Blue-eye is a beautiful small native fish found in freshwater and estuarine areas along the eastern coast of Australia. Although it has been recorded growing to 7cm, it ...is much more commonly seen at around 3-4cm in length. Its colourful form, long delicate fins, courtship displays and active nature make it a popular aquarium fish for native fish enthusiasts.
This video was filmed in the lower reach of a creek just above the tidal influence, in Ku-ring-gai Chase National Park on the northern outskirts of Sydney. As well as the fish, it gives an idea of the habitat and biotope in this part of the creek. Pacific Blue-eye were also observed immediately downstream in the tidal areas along with a range of other species.
For more information on Pacific Blue Eye see:
The Fishes of Australia website
http://fishesofaustralia.net.au/home/...
The Australian Museum website
https://australianmuseum.net.au/pacif...
The ANGFA Queensland website
http://rainbowfish.angfaqld.org.au/Si...
CAAB Taxon Code:37245020
Video and sound © Greg Wallis 2017
For stock footage enquiries contact greg(underscore)wallis(at)iinet(dot)net(dot)auShow More
Rainbow Trout, Brown Trout and Platypus in north-east Tasmania
Salmonids (Salmonidae) were introduced to the waterways of ...
Salmonids (Salmonidae) were introduced to the waterways of south-eastern Australia in the 1800's; none are native to this country despite what many people believe. These large predatory fish have an ...appetite for insects, crustaceans and small fish and have had a devastating impact on some of our small native fishes, particularly the galaxiids. Undoubtedly some species have become extinct; others have had their ranges severely reduced and fragmented and now only occur where trout are not present. Despite the known threats they pose to native fishes, trout continue to be stocked into waterways by government fisheries to provide sport for recreational fishing.
I visited this creek in north-eastern Tasmania in the hope of filming some Giant Tasmanian Freshwater Crayfish (Tasmanian Lobsters) and some native fish but unfortunately none were caught on my cameras in the couple of hours I spent there. Apart from a lone Short-finned Eel, not a single native fish was seen, only Rainbow Trout and Brown Trout. I did however get a pleasant surprise when I got home to download my footage and discovered that an underwater Platypus had passed in front of the camera several times; I wasn't expecting this as I was filming in the middle of the day.
For more information on the impacts of salmonid fishes on native fish see the following paper:
https://www.environment.gov.au/system/files/resources/c7e5e90a-1e4b-4040-abba-38939d32ebbf/files/salmonids.pdf
© Greg Wallis 2016Show More
Native Fish: Pacific Blue Eye (Pseudomugil signifer)
The Pacific Blue-eye is a beautiful small native fish found in ...
The Pacific Blue-eye is a beautiful small native fish found in freshwater and estuarine areas along the eastern coast of Australia. Although it has been recorded growing to 7cm, it ...is much more commonly seen at around 3-4cm in length. Its colourful form, long delicate fins, courtship displays and active nature make it a popular aquarium fish for native fish enthusiasts.
This video was filmed in the lower reach of a creek just above the tidal influence, in Ku-ring-gai Chase National Park on the northern outskirts of Sydney. As well as the fish, it gives an idea of the habitat and biotope in this part of the creek. Pacific Blue-eye were also observed immediately downstream in the tidal areas along with a range of other species.
For more information on Pacific Blue Eye see:
The Fishes of Australia website
http://fishesofaustralia.net.au/home/species/4096
The Australian Museum website
https://australianmuseum.net.au/pacific-blue-eye-pseudomugil-signifer
The ANGFA Queensland website
http://rainbowfish.angfaqld.org.au/Signifer.htm
CAAB Taxon Code:37245020
Video and sound © Greg Wallis 2017
For stock footage enquiries contact greg(underscore)wallis(at)iinet(dot)net(dot)auShow More
Утконос: яйца, яд и молоко // Всё как у зверей #69
Автор и ведущая - Евгения Тимонова, режиссер - Сергей Фененко, ...
Underwater in the Deua River: freshwater fish
I was fortunate enough to be able to stop at the beautiful Deua River ...
I was fortunate enough to be able to stop at the beautiful Deua River for an hour or so on my way through from Braidwood to Moruya down the Araluen ...Road. During that time I observed 4 different fish species, 3 of which can be seen in this video; Australian smelt,(Retropinna semoni), Cox's gudgeon (Gobiomorphus coxii) and Common galaxias (Galaxias maculatus). I also observed a Long-finned Eel. Many other species are known to occur in the catchment including the endangered Australian Grayling (Prototroctes maraena).
The Deua River catchment includes the eastern side of the Great Dividing Range south of Braidwood, and flows through to the coast near Moruya. It supplies a substantial amount of water for the Shire of Eurobodalla. Araluen Creek is a tributary of the river and has been subjected to extensive gold mining in the past resulting in substantial sedimentation much further downstream. A new gold mine proposed for Majors Creek in the Deua headwaters has already attracted considerable controversy over breaches of environmental regulations and a proposal to use cyanide in the gold extraction process.
For more information on gold mining in the catchment of the Deua River see the Majors Creek website:
http://www.majorscreek.org.au/content/dargues-gold-mine-information
For more information on the fish in the video see the Fishes of Australia website for each species:
Cox's Gudgeon (Gobiomorphus coxii) CAAB: 37429021
http://fishesofaustralia.net.au/home/species/4143
Australian Smelt (Retropinna semoni) CAAB: 37101001
http://fishesofaustralia.net.au/home/species/2087
Common Galaxias (Galaxias maculatus) CAAB: 37102006
http://fishesofaustralia.net.au/home/species/2129
© Greg Wallis 2017Show More
Native fish: Common Galaxias and Pygmy Perch; Darlot Creek
Darlot Creek starts above Lake Condah near Mount Eccles in ...
Darlot Creek starts above Lake Condah near Mount Eccles in south-western Victoria. It flows for around 50kms before jong the Fitzroy River near the coast just south-east of Tyrendarra.
Three ...species of fish can be seen in this video: Common Galaxias (Galaxias maculatus), Southern Pygmy Perch (Nannoperca australis) and the introduced pest fish Gambusia holbrooki. Several other species of native and inroduced fish are known to occur in the catchment.
Many of the fins on the Pygmy Perch have been damaged; presumably this is from fin-nipping by the Gambusia. A Gambusia can be seen fin-nipping towards the end of the video at 1:13
Darlot Creek is in Gunditjmara country and is testament to a rich history of prehistoric engineering that involved constructing stone walls and channels to trap, grow and harvest Short-fin Eels and other fish. Countless thousands of eels migrated up these waterways every year
As lava from the Mt Eccles eruption cooled, it formed a landscape of rough stony rises. Some of these partially dammed the flow of Darlot Creek and led to the formation of Lake Condah. Thousands of years ago the Gunditjmara engineered an ingenious system of using stones from the lava field to form a system of weirs that trapped eels and other fish, providing them with a year-round supply of fresh food, even in drought. The eels were smoked in hollow trees.
@ Greg Wallis 2017Show More
Чак Норрис среди крокодилов // ВКУЗ #66
Мы приехали в город имени премии Дарвина, чтобы снять самое опасное ...
Мы приехали в город имени премии Дарвина, чтобы снять самое опасное для человека животное - морского крокодила. Само собой, рискуя собственной жизнью и жизнью своих детей. Но оно того ...стоило.
В этом видео: морские крокодилы Австралии, Стив Ирвин, крокодилы-людоеды, узкорылые крокодилы, премия Дарвина, северная Австралия.
Спасибо великому крокодиловеду Владимиру Динецу за консультации и замечательную книгу "Песни драконов": https://www.corpus.ru/products/vladimir-dinets-pesni-drakonov.htm Прочитайте обязательно, уйма радости и никакого риска.
Ну и видео маленького натуралиста о больших крокодилах тоже смотрите: https://youtu.be/qk7_Rb1lmhY И не жалейте лайков - Эмиль очень старался, чтобы не только выжить, но и рассказать вам об этом.
Автор и ведущая - Евгения Тимонова, съемки в Австралии - Олег Кугаев, Сергей Фененко, комикс - Андрей Кузнецов (Акуаку), монтаж - Сергей Фененко.
#крокодилы #Австралия #самыеопасныеShow More
Broad-shelled turtle (Chelodina expansa): Gunbower Island
The Broad-shelled long-necked turtle (Macrochelodina expansa) is ...
The Broad-shelled long-necked turtle (Macrochelodina expansa) is Australias' largest species of snake-necked turtle. A large adult can have a shell length of up to 50cm although they are more commonly ...seen at sizes between 30 and 40cm. A large turtle may reach more than 80cm in length with the neck outstretched. An exceptional specimen weighed by Joe Bredl at Remark in South Australia weighed 10kg (Tortoises of Australia, John Cann 1978).
The Broad-shelled occurs through the inland rivers and billabongs of eastern and south-eastern Australia, from Rockhampton in Queensland through to the Murray River in NSW and Victoria. It also occurs on several islands off the south-east coast of Queensland.
Although it is often referred to as the Broad-shelled river turtle, its preferred habitat is the permanent lakes, billabongs and backwaters that are connected to the main rivers, rather than the rivers themselves.
These turtles are primarily ambush hunters and will lie partially buried in the mud and leaf litter on the bottom with only their head visible; thrusting their neck out quickly to grab fish, frogs or insects as they pass. They are able to remain like this for extended periods aided by their amazing ability to extract oxygen from the water by pumping it through veined cavities in their throat and cloaca.
Nesting is often triggered by rain during the nesting period, and likewise hatchling turtles may need heavy rain to loosen them from the hardened soils of the nesting chamber. Nesting takes place up to several hundred metres away from water where the female digs a hole between 10–20cm deep in which she deposits 10–30 eggs.These turtles have a lengthy incubation period with eggs generally being laid in autumn, overwintering, and then hatching some 12 months later or more. John Cann records one nest being opened 664 days after laying to reveal live hatchlings!
Nest predation by foxes has had a drastic impact on the recruitment of juveniles, with more than 90 percent of all nests being raided by foxes. There are serious concerns about the long-term viability of the remaining populations and some are listed as vulnerable. Adults are rarely seen except when the females leave the water to nest, when they may be sometimes seen crossing roads and paddocks. Turtles are also sometimes inadvertently caught on baits by fisherman.
For more information on Broad-shelled turtles see:
Turtles Australia website
http://www.turtlesaustralia.org.auShow More
Freshwater fish of NSW Australia part 1
underwater footage from Brett Vercoe of Liquid focus featuring some of ...
underwater footage from Brett Vercoe of Liquid focus featuring some of NSW's premier angling species. All footage taken is of wild fish in natural habitats
South-west Australian rare freshwater fishes and their habitat
Takes viewers on an aerial, ground and underwater journey across ...
Takes viewers on an aerial, ground and underwater journey across wilderness areas of south-western Australia; a global biodiversity hot-spot. Visit rivers and lakes crucial to the survival of rare ...and endangered freshwater fishes, the Western Trout Minnow, Balston's Pygmy Perch and Little Pygmy Perch. This project is supported by funding from the Western Australian Government’s State NRM Program (Strategic ID 12305) and the South West Catchments Council, through funding from the Australian Government’s National Landcare Program. Project partners were Freshwater Fish Group and Fish Health Unit at Murdoch University (video credit), Centre of Excellence in Natural Resource Management (The University of Western Australia), Western Australian Government (Departments of Fisheries (lead agency for the project), Water, and Parks and Wildlife), the South Coast NRM, and South West Catchments Council.
More information and reports:
http://www.endangeredfishesofsouth-westernaustralia.com/
http://www.freshwaterfishgroup.com
http://www.cenrm.uwa.edu.au/research/fishShow More
Stream Life - Freshwaters of the NSW North Coast
HD footage of some of the aquatic life to be found in the freshwater ...
HD footage of some of the aquatic life to be found in the freshwater streams of Australia's NSW North Coast.
Australian bass in the snag
For all you fellow Bass lovers, here's what they look like in their ...
For all you fellow Bass lovers, here's what they look like in their natural environment. Best watched in HD!
Freshwater fish of NSW Australia part 2
Underwater footage by Brett Vercoe of Liquid focus featuring some of ...
Underwater footage by Brett Vercoe of Liquid focus featuring some of NSW's premier angling species. All footage taken is of wild fish in natural habitats.
Gippsland Spiny Crayfish (Euastacus kershawi), Yarra River, Victoria.
The Gippsland Spiny Crayfish is a large member of the Euastacus group ...
The Gippsland Spiny Crayfish is a large member of the Euastacus group of spiny crays that are endemic to the freshwater rivers and streams of south-eastern Australia. Although they are ...superficially similiar to the familiar Yabbie (Cherax destructor), they are in fact quite different and are very long lived, taking a considerable time to reach reproductive maturity and as such they are especially susceptible to overfishing. There are more than 50 species of Euastacus in Australia, many of which are poorly known and under threat from a range of causes.
This crayfish has numerous Temnocephalans (a type of flatworm) living on it and these are clearly evident in the video.
This video has been edited from the raw material shown in the video "Filming the Gippsland Spiny Crayfish" which you can see here:
https://www.youtube.com/watch?v=huUcSuT0JUs
You can get extended and better views of the crayfish in this video
For more information on filming in shallow water see my blog
http://kneedeepvideo.blogspot.com.au/
© Greg Wallis
http://www.gregwallis.comShow More
Sydney Giant Spiny Crayfish (Euastacus spinifer)
The Giant Spiny Crayfish (Euastacus spinifer) is one of two species of ...
The Giant Spiny Crayfish (Euastacus spinifer) is one of two species of freshwater spiny crayfish found in the Sydney region. Although they are often referred to as Yabbies, they are ...distinctively different from the true Yabbie (Cherax destructor). Along the bottom edge of the claws in all Euastacus crayfish there are spines present, whereas in other types of freshwater crayfish this edge is completely smooth.
Spiny Crayfish (Euastacus sp.) are slow growing, can take 5–10 years to reach sexual maturity and can live to a very old age in excess of 40 years -- please give this some serious thought if you are intent on catching them to eat! In this regard they are very different to their Yabby cousins which grow, mature and reproduce very quickly making them a commercially viable farming proposition.
Once Giant Spiny Crayfish reach a reasonable size they are no longer suitable as prey for platypus, eels, cormorants, fish etc and they may then become the dominant predator within a creek system. The Giant Spiny Crayfish is found in coastal rivers and streams from the Hastings River at Port Macquarie, NSW south to the Clyde River at Bateman's Bay. It is also found in the Blue Mountains west of Sydney.
Euastacus crayfish are endemic to the east coast of Australia and there are more than 50 species recorded. The Giant Spiny Crayfish has quite a large distribution, however many other species have very small ranges, many of which are under threat from logging and clearing of native vegetation, siltation, pollution, the threat of introduced fish such as trout, and heavy fishing pressure from recreational fisherman.
CAAB Taxon Code: 28 795027Show More
Murray crayfish high country hideout under threat
Ecologists from The Australian National University (ANU) have found ...
Ecologists from The Australian National University (ANU) have found that Murray crayfish numbers plunged 90 per cent in a high country river after their habitat was lost.
Although alpine streams can ...be hotspots for crayfish, the population crashed after their preferred habitat, deeper pools containing boulders and overhanging shade trees, was impacted by vegetation clearing and sedimentation.
“Murray crayfish have been in decline in lowland rivers such as the Murrumbidgee and Murray, so these mountain streams could be an important stronghold for this threatened species,” said Mae Noble from the Fenner School of Environment and Society at ANU.
Murray crayfish play a crucial role in aquatic ecosystems, where they clean up dead and decaying matter and provide food for many other species.
The team found that clearing of stream bank vegetation and sedimentation have been major threats to the deep pools and rocky habitats these crayfish call home. “Given the right habitat, alpine streams can be hotspots for these iconic creatures,” said researcher Dr Chris Fulton from the ANU Research School of Biology.“But they are very fussy with where they live, which can make them vulnerable to habitat loss,” Dr Fulton said.
Ms Noble and Dr Fulton studied the crayfish by snorkelling in the freezing high-country streams.
“Looking into their world, we not only found where they like to call home, but also their remarkable personalities and curiosity for new things,” said Ms Noble, who is a Masters student at the Fenner School of Environment and Society.
The researchers hope the new understanding of the habitat preferences of Murray crayfish will help in the quest to restore and protect mountain stream habitats to ensure the survival of the species.
The research published in Aquatic Conservation: Marine and Freshwater Ecosystems .Show More
Common Galaxias or Jollytail (Galaxias maculatus) biotope
Filmed in Wilson's Promontory National Park in Victoria, Australia, ...
Filmed in Wilson's Promontory National Park in Victoria, Australia, this video shows the habitat or biotope associated with Common Galaxias in the very lower reaches of creeks just before they ...enter the ocean. Saltwater often intrudes into these areas during spring tides and storm surges.
The Common Galaxias is the world's most widespread naturally occurring freshwater fish, however due to it's small size it is generally not fished for by anglers. Young Jollytails (and other Galaxiids) are often called Whitebait – they are transparent – and move upstream in large numbers where they are actively netted in commercial fishing operations in countries like New Zealand. Occasionally in places like Tidal River at Wilsons Prom, large "balls" of tiny whitebait can be seen moving upstream with the incoming tides.
CAAB Taxon Code: 37102006
© Greg Wallis 2015Show More
Grampians creek biotope with Obscure Galaxias (Galaxias oliros)
This video was primarily a test of "drifting" a gopro camera (HD3) to ...
This video was primarily a test of "drifting" a gopro camera (HD3) to capture underwater habitats along a small section of waterway. Unfortunately there wasn't much life in the creek ...at the time I chose to test it, however a few of the recently described Obscure Galaxias (Galaxias oliros) can be seen swimming past the camera.
This is a technique I'll try and include in some of my videos in the future, hopefully where there is a bit more action. Regardless the video gives an insight into the underwater world and may prove useful to those interested in naturally aquascaping their aquariums.
© Greg Wallis 2015Show More
Native Fish: Finniss River freshwater biotope, Northern Territory, Australia
The Finniss River in Northern Australia is home to a great diversity ...
The Finniss River in Northern Australia is home to a great diversity of native freshwater fishes and other wildlife; the film showcases some of those animals and the river biotope. ...This video was filmed in a spring fed monsoon forest near the headwaters of the river.
A much longer version of this video will be available in the future in addition to shorter videos of some species, so watch this space.
Best watched in HD full screen mode with earphones.
The video and sound is copyrighted by Greg Wallis 2015
For information, tips and tricks for using gopros in shallow water see my kneedeepvideo blog below:
http://kneedeepvideo.blogspot.hk/2015/12/welcome-to-knee-deep-shallow-water.html
Some of the wildlife you can see in this video includes:
Fish
Barramundi 0:43
Black Catfish 1:18
Tarpon or Ox-eye Herring 3:40
Strawman or Blackmast 4:03
Sooty Grunter juvenile 4:12
Butlers or Sharp-snouted Grunter 00:43 (smaller fish)
Spangled Grunter (Perch) 4:34
Banded Grunter 1:32
Western Rainbowfish 1:55
Chequered Rainbowfish 3:53
Black-banded Rainbowfish 3:59
Giant Gudgeon 1:44
Mouth Almighty 1:49
Northern Trout Gudgeon (Purple Spotted Gudgeon) 4:45
North-west Glassfish (Ambassis sp) 1:52
Reptiles
Freshwater Crocodile (Crocodylus johnstonii)
Yellow-faced Turtle 1:04
Northern Snapping Turtle 2:08
Northern Long-necked Turtle 2:40
Macleays Water Snake 5:55
Crayfish
Red-claw Crayfish 6:00
Cherabin or Freshwater Prawn 5:53
Macrobachium sp. 1:27
Freshwater Shrimp 2:05
Birds
Snake necked Darter (Anhinga melanogaster) 00:58Show More
Blyth River, Central Arnhem Land: Native fish
A short video filmed along the Blyth River in Central Arnhem Land, ...
A short video filmed along the Blyth River in Central Arnhem Land, Australia, showing some Rainbowfish (Melanotaenia) and Hardyheads (Craterocephalus).
http://www.gregwallis.com
Life in Byron Creek D'Aguilar National Park
Crimson Spot Rainbowfish, Purplespot Gudgeons and Australian Smelts in ...
Crimson Spot Rainbowfish, Purplespot Gudgeons and Australian Smelts in Byron Creek D'Aguilar National Park
Life in Searys Creek Great Sandy National Park
Ornate Rainbowfish - Rhadinocentrus ornatus in their natural habitat. ...
Ornate Rainbowfish - Rhadinocentrus ornatus in their natural habitat.
Underwater footage of rhads that show the incredible colours and pattern variations in the same species.
News Update - Endangered Goby Found at Ravenswood
Rare fish found in outback bore drain. Dr Fish (Adam Kerezsy) stumbled ...
Yabbies (Cherax destructor) moving upstream at Nadgigomar Creek
These Yabbies were moving upstream after a recent rain/flood event at ...
These Yabbies were moving upstream after a recent rain/flood event at Nadgigomar Creek on the NSW southern tablelands in the Shoalhaven River catchment.
There was a slow but continuous parade of ...yabbies climbing the small waterfall, making their way through 'rapids' over the geotextile concrete and then continuing on through a race under the causeway. At the other end a vertical waterfall from a small weir was stopping further progress upstream and undoubtedly they would have been amassing underwater at the base. I don't know the eventual fate of the yabbies and whether hey made it through to the deeper water.
Apologies for the quality of the sound recording on this video.Show More
Film 1.5 NFF Balston Pygmy Perch
The native freshwater fishes of South -- Western Australia are highly ...
The native freshwater fishes of South -- Western Australia are highly endemic, meaning they are found nowhere else on earth and are a result of millions of years of isolation. ...This first of its kind film highlights these sometimes rare and endangered species in their natural habitat. Narrated by local Nyungar, Mr Joeseph Northover the film presents research information been gathered by the Murdoch University centre for fish and fisheries research over the last 20 years. The film also depicts the iconic south west freshwater environment and the pressures these fish face in climate change, increased abstraction and introduction of feral fish species. Keep watching through to the credits for the incredible fish rap.Show More
Pilbara Freshwater Fishes 2014
Pilbara Freshwater Fishes is a documentary that has been produced by ...
Pilbara Freshwater Fishes is a documentary that has been produced by ENVfusion films in partnership with Murdoch University and Rangelands and WA State NRMs to video document the freshwater fishes ...of Pilbara (Indian Ocean Drainage Division) Western Australia. Join Dr David Morgan as he takes you on a journey of the unique waterways of this ancient landscape and discover some of the rarest endemic species of freshwater fishes in the world. Highlights include some of the spectacular waterways of the world class Karijini National Park, the eyeless blind cave fishes of the Cape Range National Park and the Indian Short-finned Eel.
This is a not for profit production.Show More
Native fish: Black Catfish (Neosilurus ater), Finniss River, NT.
The Black Catfish (Neosilurus ater) or Tandan is a type of eel-tailed ...
Native Fish: Ornate Galaxias (Galaxias ornatus) in the Yarra River Catchment, Dandenong Ranges
Ornate Galaxias (Galaxias ornatus) were until recently part of the ...
Native Fish: Barred Grunter (Amniataba percoides), Finniss River, NT.
These Barred Grunter (Amniataba percoides) were filmed in the upper ...
Sydney Giant Spiny Crayfish (Euastacus spinifer)
www.gregwallis.com The Giant Spiny Crayfish (Euastacus spinifer) is ...
http://www.gregwallis.com
The Giant Spiny Crayfish (Euastacus spinifer) is one of two species of freshwater spiny crayfish found in the Sydney region. Although they are often referred to as Yabbies, they are ...distinctively different from the true Yabbie (Cherax destructor). Along the bottom edge of the claws in all Euastacus crayfish there are spines present, whereas in other types of freshwater crayfish this edge is completely smooth.
Spiny Crayfish (Euastacus sp.) are slow growing, can take 5-10 years to reach sexual maturity and can live to a very old age in excess of 40 years -- please give this some serious thought if you are intent on catching them to eat! In this regard they are very different to their Yabby cousins which grow, mature and reproduce very quickly making them a commercially viable farming proposition.
Once Giant Spiny Crayfish reach a reasonable size they are no longer suitable as prey for platypus, eels, cormorants, fish etc and they may then become the dominant predator within a creek system. The Giant Spiny Crayfish is found in coastal rivers and streams from the Hastings River at Port Macquarie, NSW south to the Clyde River at Bateman's Bay. It is also found in the Blue Mountains west of Sydney.
Euastacus crayfish are endemic to the east coast of Australia and there are more than 50 species recorded. The Giant Spiny Crayfish has quite a large distribution, however many other species have very small ranges, many of which are under threat from logging and clearing of native vegetation, siltation, pollution, the threat of introduced fish such as trout, and heavy fishing pressure from recreational fisherman.
The fish in this video are Climbing Galaxias (Galaxias brevipinnis). Also visible are some small freshwater shrimp (Family:Atyidae) and a long-armed freshwater prawn (Palaemonidae)Show More
Native fish: Black-banded Rainbowfish (Melanotaenia nigrans), Kakadu National Park
Black-banded Rainbowfish (Melanotaenia nigrans) filmed in a tributary ...
Native Fish: Trout Minnow or Spotted Galaxias (Galaxias truttaceus): Cape Liptrap Coastal Park
These Spotted Galaxias were filmed at Waratah Bay in Cape Liptrap ...
These Spotted Galaxias were filmed at Waratah Bay in Cape Liptrap Coastal Park. The Common Jollytail or Common Galaxias (Galaxias maculatus) can also be seen briefly at several points in ...the video; eg (00:48 in the background) and at 01:40 where one darts across the screen twice
For more information on Spotted Galaxias see:
http://www.fishesofaustralia.net.au/home/species/3682
CAAB Taxon Code: 37102010
http://www.gregwallis.comShow More
Native fish: Maguk (Barramundi Gorge), Kakadu National Park
Barramundi Creek is a major tributary of the South Alligator River in ...
Queensland Lungfish & Mary River Turtle
The Mary River, in south-east Queensland, Australia, is home to the ...
The Mary River, in south-east Queensland, Australia, is home to the Mary River Turtle and the Queensland Lungfish. The proposed Traveston Dam would have placed even more pressure on these ...already threatened species, possibly wiping them out completely.
QUEENSLAND LUNGFISH (Neoceratodus forsteri)
The Queensland Lungfish is a living fossil, some records suggest it hasn't changed in at least 100 million years. Unique among fish, the lungfish has a modified swim bladder that it uses to breathe air at the water's surface. The lungfish will breathe this way to supplement the oxygen it takes in through its gills -- which is especially important when water quality is low and oxygen levels are reduced. The species can even survive out of water for several days if the skin is kept moist.
Lungfish mature slowly, and won't reach reproductive maturity for 17-22 years. They are particular about their spawning grounds: there must be suitable aquatic plants to protect the eggs and subsequent juveniles, and the water can't be stagnant. If conditions aren't right, a lungfish will re-absorb its spawn and wait for the next year. It will repeat this each year until conditions improve, or until the fish is too old to reproduce.
Already researches are noticing that there are fewer juvenile and young lungfish in the Mary River, which would indicate that either the adults are not spawning enough, or the eggs and juveniles aren't surviving in the current river conditions. The Queensland Lungfish is a protected species, and was put on the CITES list in 1977.
MARY RIVER TURTLE (Elusor macrurus)
The Mary River Turtle was only officially described in 1994. It has an uniquely long tail measuring two-thirds the length of its shell. It also has very long mandibles.
In the 1960s it was heavily collected by the pet trade. In recent years, its egg laying grounds are disappearing: riverbanks are eroding because of grazing cattle, and the river quality is altered because of human influences. The egg laying grounds that remain are often pillaged by dogs and foxes.
The Mary River Turtle is now among the world's top 25 most endangered turtle species, and is on the IUCN Red List. It is the second most endangered turtle species in Australia.
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Get angry about the Traveston Dam: http://www.youtube.com/watch?v=v3BcveG2DZg
Learn more about saving the Mary River: http://savethemaryriver.com/
Learn more about the Mary River Turtle: http://aftcra.org.au/Show More
Native fish: Midgley's Grunters (Pingalla midgleyi) and other grunters from Kakadu
This video shows five types of grunter (Terapontidae) found in the ...
This video shows five types of grunter (Terapontidae) found in the waterways of Kakadu: the Midgley's or Black-blotch Grunter (Pingalla midgleyi), Butler's or Sharp-nose Grunter (Syncomistes butleri), Sooty Grunter (Hephaestus ...fuliginosus), the Banded, Barred or Black-striped Grunter (Amniataba percoides) and the Spangled Perch (Leiopotherapon unicolor) These fish were filmed in the catchment of the South Alligator River.
The video is interesting particularly in respect to the Midgley's Grunters which show both the normal colouration (unpatterned) and the alarmed or threatened colouration (with darker horizontal lines along the sides of the body. Note that young Butler's Grunters (as seen in this video) also have dark horizontal lines along their sides which are less broken up than those on the Midgely's Grunters. Young Sooty Grunters (very common in this video) have a prominent black blotch on their anal fin like the Midgely's Grunter, however in addition they have dark markings on their dorsal fins which are missing on the Butler's Grunters.
At 01:18 a Northern Snapping Turtle (Elseya dentata) can be seen in the background
For more information see:
Midgley's Grunter (Pingalla midgleyi)
CAAB Taxon Code: 37321024
http://fishesofaustralia.net.au/home/species/2519
Sooty Grunter (Hephaestus fuliginosus)
CAAB Taxon Code: 37321014
http://fishesofaustralia.net.au/home/species/691
Sharpnose Grunter (Syncomistes butleri)
CAAB Taxon Code: 37321028
http://fishesofaustralia.net.au/home/species/2522
Barred Grunter (Amniataba percoides)
CAAB Taxon Code: 37321009
http://fishesofaustralia.net.au/home/species/687
Spangled Perch (Leiopotherapon unicolor)
CAAB Taxon Code: 37321018
http://www.fishesofaustralia.net.au/home/species/694
The Fish Atlas of North Australia -- South Alligator River
http://www.jcu.edu.au/archive/actfr_old_Projects/FishAtlas/Location/NT/south.htmShow More
Saving the Running River Rainbowfish
This video was shot over the last few years. It documents just some of ...
Small worlds: Glass Shrimp (Palaemonetes atrinubes)
This video shows an abundance of small life in the upper tidal reaches ...
This video shows an abundance of small life in the upper tidal reaches of a Ku-ring-gai Chase National Park waterway. Small prawns or glass shrimp ( Palaemonidae: Palaemonetes atrinubes) feed ... across rocks which have been covered by a rising tide, right next to where a freshwater creek feeds into the system.
Some of the other fish which can be seen include:
a small goby, possibly Redigobius macrostoma or Pseudogobius
Pacific Blue-eye (Pseudomugil signifer)
Yellowfin Bream (Acanthopagrus australis)
Tarwhine (Rhabdosargus sarba)Show More
The amazing Odus - Australian Lungfish @ Wildlife Habitat!!
View this awesome footage of Odus our Australian Lungfish, found in ...
View this awesome footage of Odus our Australian Lungfish, found in the Rainforest Habitat at the Wildlife Habitat Port Douglas...
How to catch Native Australian Rainbowfish
Short video on how to catch rainbowfish for your pond. Some nice ...
Short video on how to catch rainbowfish for your pond. Some nice underwater footage and what someone called a bit of ambitious predation at about 1:18
Life in Northbrook Gorge No2
2nd trek down into Northbrook Gorge. Access is from Northbrook Parkway ...
2nd trek down into Northbrook Gorge. Access is from Northbrook Parkway on Mt Glorius not far from Wivenhoe Outlook. Its a decent climb down to the creek and then trekking ...upstream to the gorge where you have to rock hop and swim through certain sections was an effort but well worth itShow More
Life in - Northbrook Creek Mt Glorious west of Brisbane
Beautiful area for a drive and a picnic at Red Cedar Day Use Area ...
Beautiful area for a drive and a picnic at Red Cedar Day Use Area going over Mt Glorious west of Brisbane.
Northbrook Creek and Northbrook Pkwy runs from the top ...of Mt Glorious down to Lake Wivenhoe. Very crystal clear water but I could not find any life in the water until down near Wivenhoe, maybe because it runs completely dry sometimes? Would have been great to film Rainbowfish in.Show More
Life in Carnarvon Creek and Gorge Central Queensland
A different perspective of Carnarvon Gorge all recorded on a trip in ...
A different perspective of Carnarvon Gorge all recorded on a trip in Nov 2016. Rainbowfish, Purple Spot Gudgeons, Spangled Perch, Tandanus catfish, snakes, fruitbats and more
Native Fish: Dargo Galaxias (Galaxias mungadhan)
The Dargo Galaxias is a Critically Endangered small native fish that ...
The Dargo Galaxias is a Critically Endangered small native fish that is restricted to the headwaters of the upper Dargo River System; part of the MItchell River catchment in eastern ...Victoria. Until recently it was considered part of the Mountain Galaxias (Galaxias olidus) complex, but in 2014 it was described as a separate species by Tarmo Raadik in his systematic revision of the olidus group. Raadik chose the specific name of 'mungadhan' from the local Gunai/Kenai indigenous language group – it means from the frost or snow and refers to the high elevations at which this fish is found; areas that are usually covered by snow in winter.
In common with many other galaxiid species, introduced trout pose the major threat to the survival of this fish, and it is suspected that trout have already eliminated these small fish from much of their former range. Populations now only exist in areas that remain free from Brown or Rainbow trout. Other threats are posed by bushfires and feral animals such as horses (brumbies) and cattle. These can lead to erosion, and hence sedimentation in the creeks, as well as detrimental increases in nutrient levels which affects the levels of dissolve oxygen.
This footage was filmed in the late afternoon on 4 January 2017 as large numbers of flying insects gathered above the water of one of the deeper pools along a small section of creek. The fish were actively feeding on the surface but were very wary of any approach. Another video that gives a better view of the fish in other areas of the creek will be posted shortly.
CAAB Taxon Code: 37 102031
© Greg Wallis 2017Show More
Life in the Calliope River Central Queensland Australia
Underwater footage of Native fish in the Calliope River, Eastern ...
Underwater footage of Native fish in the Calliope River, Eastern rainbowfish, hardy heads, banded or barred grunter, mullet, turtles and more
Native Fish: Obscure Galaxias (Galaxias oliros)
Until recently, these small Australian native freshwater fish were ...
Until recently, these small Australian native freshwater fish were considered as part of the Mountain Galaxias (Galaxias olidus) species complex. That species complex has now been revealed to contain a ...large number of similar but quite distinct species – the Obscure Galaxias (Galaxias oliros) shown in this video being one of them.
Filmed in the eastern drainage of the Grampians National Park in early June 2018.
I also have another video of this species shot several years earlier in the same location. At the time the species was known as the Mountain Galaxias, but since the revision it is now known as a separate species, the Obscure Galaxias. You can see the earlier video of the same species (just with a different name at the time) via this link:
https://www.youtube.com/watch?v=XxTpd2XVe5I
CAAB Taxon Code: 37 102032Show More
Depuis que j’ai acheté mon premier aquarium d’occasion à l’âge de douze ans, j’ai toujours eu un ou plusieurs aquariums. J’ai même transformé un garage en salle d’élevage où j’avais 50 aquariums contenant environ 10 000 litres d’eau. Actuellement, j’ai deux aquariums : un aquarium Tanganyika de 1 250 litres et un aquarium communautaire de 250 litres avec des plantes. Depuis 10 ans, je travaille sur ce site web en tant que rédacteur et photographe.
