Showing posts with label hunt. Show all posts
Showing posts with label hunt. Show all posts

Tasmanian Waters is New Home for Gloomy Octopus



The gloomy octopus latin name Octopus tetricus is setting up home in the now warmer seas around Tasmania. Climate change is causing its native waters off the coast of NSW and Victoria have made it too hot for the creature. Newcomers are arriving daily improving the genetic diversity of those already on the block.

Australia's octopuses are doing a great job at expanding their range south to Tasmania. Australia's 'Gloomy Octopus' Finds Warmth, Food, Happiness in Tasmania. Kimberly Hickok. Warming ocean temperatures are encouraging Australia's notably reclusive gloomy octopus to branch out. seas native nsw hot creature. Australia's 'Gloomy Octopus' Finds Warmth, Food, Happiness in Tasmania. Alamy. This creature's range was limited to the rocky tidal shores of eastern Australia; that was true until about 2000,has expanded its territory from the shores of New South Wales on the east coast of Australia down to the now-warmer waters off the northeast of an island state about 150 miles (240 kilometers) south of the mainland. Researchers mapped the gloomy's range expansion and reported their results in a study published June 22 in the journal Scientific Reports. The gloomy octopus,The heat-loving cephalopod,named for its droopy-looking white eyes,or 31.5 inches across) and has a tentacle span of up to 2 meters (6 feet),also known as the common Sydney octopus (Octopus tetricus),is a little bigger than a beach ball (80 centimeters,when the octopuses were first found off the southern coast of the Australian state of Victoria,according to the Australian Museum. Historically, Oceana reported.

And thanks to persistent gene flow from the animals' historical population — meaning genes from one population are carried to another — and moderate genetic diversity, the species is likely to adapt nicely to its extended habitat and may continue to expand its range, the scientists predicted. [Octlantis: See Photos of Tight-Knit Gloomy Octopus Communities]. "People send in photo observations," Pecl told Oceana. "We get an early indication of what species might be shifting, and then we initiate a more targeted research study." The data from the citizen science project led to the new study from Pecl and her colleagues, which confirms the gloomy octopus' southward range expansion. Scientists discovered the breadth of the gloomy's range expansion thanks to recreational fishermen and divers reporting their cephalopod sightings to Redmap. This citizen science project was created by study co-author Gretta Pecl, a marine ecologist at the University of Tasmania.

An octopus fishery aimed at gloomies might be a win-win solution for fishers and shellfish populations. Another predator is the last thing the struggling shellfish population needs after combatting fatal marine heat waves caused by increasingly warm currents. That's because these eight-tentacled outsiders love to chow down on shellfish such as abalone and rock lobster, which make up the most profitable fisheries in the region, Oceana reported. But while the gloomy octopus seems well-adapted to its new home, its territory expansion has fisheries experts worried. The gloomy's expansion is also part of a larger, growing trend of shifts in wildlife territory caused by climate change. The gloomy octopus is just the latest example of dozens of species carried south by the East Australian Current in recent years, Oceana reported.
But the larger size of the gloomies makes them a more attractive catch, he said. Craig Hardy, a Tasmanian fisherman, told Oceana that fishermen in the area have historically caught smaller octopus species.
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Sad octopus
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Cats Trap Birds

Felines hunting birds
"We will get them!"
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Australian Cats Came From Europe Not Asia

Cats are cuddly pets, but if they get into the wild they can cause native animals to become extinct. This has been the case in Australia. They hunt little marsupials until there are none left to eat then move on to consume something else. growing larger in the wild certainly help cats to survive very well indeed.
Australian wild cat
Where did the cats originally come from? It was thought that Asia was the most likely place as Asian fishermen came to Australia's northern shores well before Europeans. However, research shows that they did come on boats from European countries whether as "stowaways" or more likely brought as pets to remind new arrivals of home. Moreover, having cats to hunt rodents on European ships was common in the early 1800s.

Island cats were tested as they had not crossed with new cats imported from countries across the world, so the findings were accurate and Europeans are the culprits for spreading this pest. Keep your cat in the house and don't let it roam. "Darn! Gone again."
 Genetics  by Ty Buchanan 
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The Kimberley Throws Out Another New Species

Acanthophis cryptoamudros kimberley death adder
You would think that all the snakes in Australia are known.  However a new species has been found.  It is a death adder in the Acanthopis family.  Official named Acanthophis cryptoamudros the Kimberley death adder is two thirds of a meter long.  Like many snakes its head is diamond shaped.

Adders hide and blend in with the underbrush then ambush prey.  Four legged reptiles and small mammals are the main food.  Oddly, the new adder does not look like other adders.  It is similar to snakes of other species.

Australia has been a happy hunting ground for scientists recently.  Many new animals have been identified.  The search goes on in this sparsely populated region of the dry continent.    New species include: shark, dolphin, antechinus, seadragon, lizard, fish and spider, ,     A new water flower has also been discovered.
Biology by Ty Buchanan
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THE KIMBERLEY IS THE CENTER OF DISCOVERY FOR NEW SPECIES

Robots Protect Australia's Barrier Reef

It is not know why but the Great Barrier Reefs is always being attacked by hordes of Crown-of-Thorns starfish. Forty per cent of damage to the reef is done by the pest. Robots that can identify starfish and then inject them with a lethal toxin are being used to fight the invasion.
Submersible robots kill crown of thorns starfish
The system works by having a submersible robot patrol about 30cm off the sea floor. When it sees a starfish an arm is extended and the injection is done. If a target is questionable the view is recorded in the robot's data base. A copy of the video is sent to human controllers who verify whether the robot has to return to finish the job.

The robots get the starfish early before they can do any real damage to the reef. After the robots have done what they can, human divers go in to clear up the remaining starfish. This combined protective system will give the reef time to recover.
 Science by Ty Buchanan
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Shark Chokes on Sea Lion

Sharks are not the indestructible creatures many think they are.  There is a myth surrounding sharks that they are virtually made of steel.  They can bite through anything and withstand great hardship.

A strong four-meter long white pointer was washed up dead on a Western Australian beach.  It certainly did bite off more than it could chew.  The cause of death was choking on a sea lion.

There was no sign of any major injury to its body, just a large sea lion lodged in its throat.  It was observed jostling around in the shallows shortly before being washed up on a Coronation Beach, apparently trying to dislodge the sea lion.

A man walking his dog first saw the shark and thought it was a diver.  There was an attempt to save the shark by towing it out to sea.  It was not known then what was the cause of its distress.  However, it later washed up dead on the beach.
Biology by Ty Buchanan
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Whale Culture in Japan

Japan plans to resume whaling in the Antarctic next year. It will modify its "scientific"research system to fit in to what the International Court of Justice (ICJ) wants, although the court stated that scientific whaling per se was illegal and would always be illegal.

Japan's Institute of Cetacean Research (ICR) says it will take the Sea Shepherd Conservation Society (SSCS) to the ICJ to stop it harassing Japanese whaling ships when they carry out future legal scientific whale hunting in the Antarctic, in short the resumption of killing of whales for food.

Just why Japan is so pig-headed about continuing to wastefully kill whales says something about Japanese culture - they are arrogant.  Japanese consumers want whaling despite not actually buying whale meat. This nation has tonnes of whale meat in storage because it doesn't sell, despite being highly subsidized.

I am about to get personal about this issue. Those readers easily offended should stop reading now..........

Cultures do not change suddenly. It takes centuries for societies to change. The way people think and what they believe in continue, even though rational circumstance prove that things cannot possibly be as people believe.

Because a war ended and countries apparently got back to normal didn't mean societies changed their ways. Japanese culture is the same today as it was in the 1930s. Arrogance prevails despite bowing to this, bowing to that. This bowing custom came about because Japanese were terrified of samurai - frightened of losing a head or half body.

The truth of the matter is that Japan will continue to hunt whales because of the silly custom of saving-face. They perceive a court order as a blemish on their character. People of other countries do not see it this way at all.
Conservation by Ty Buchanan
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Squirrel Hunter

 
"It's shooting season agaim.  Git me to them pesky humans!"
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Fish Are Intelligent and Can Remember

For years scientists told us what we wanted to believe - that fish have short memories only lasting one lap of the fish bowl. Now the truth has got out. They are intelligent creatures who can learn to do things and can even deceive other animals. Once attacked, if they escape, they remember which predator tried to kill them. Unlike humans, however, there is a cost when they use their intelligence. If they are given one fish for food they are very efficient in catching it, but if given two types of prey they apparently become confused and their effectiveness declines.

Fish interact in a social way. They recognize familiar others and modify their behavior accordingly. Siamese fighting fish will take advantage of a weak fighter by observing fish fights and readily attacking the weaker fish. Fish that clean others act busy when potential "customers' are watching. In a way they advertise.

The myth about fish having no memory or even intelligence is most likely promulgated to justify fishing, when fishermen say it is alright to jab in a hook or gut a fish because they "don't feel any pain".

An example of fish learning occurred when Professor Charles Erikson fed fish after calling to them by saying "fish-fish". When he returned five years later he called to them and some fish came to the surface expecting food. Examples of smart thinkers are trigger fish which use tools to trick prey that hunt them, and frillfin which jump back into rock pools to avoid birds.
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Lion Dinner

"Come home late again and your dinner will be over the fence!"
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Funny Animal Photos

Fish Are Intelligent and Can Remember

For years scientists told us what we wanted to believe - that fish have short memories in line with one lap of the fish bowl. Now the truth has got out. They are intelligent creatures who can learn to do things and can even deceive other animals. Once attacked, if they escape, they remember which predator tried to kill them. Unlike humans, however, there is a cost when they use they intelligence. If they are given one fish for food they are very efficient in catching it, but if given two types of prey they apparently become confused and their effectiveness declines.

Fish interact in a social way. They recognize familiar others and modify their behavior accordingly. Siamese fighting fish will take advantage of a weak fighter by observing fish fights and readily attacking the weaker fish. Fish that clean others act busy when potential "customers' are watching. In a way they advertise.

The myth about fish having no memory or even intelligence is most likely promulgated to justify fishing, when fishermen say it is alright to jab in a hook or gut a fish because they don't feel any pain.

An example of fish learning occurred when Professor Charles Erikson fed fish after calling to them by saying "fish-fish". When he returned five years later he called to them and some fish came to the surface expecting food. Other examples include trigger fish which use tools to trick prey that hunt them, and frillfin which jump back into rock pools to avoid birds.
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