The Wild Life Conservation Blog
The ramblings about wildlife…
Archive for 'Fishes'
Ban on International Commercial Trade in Atlantic Bluefin Tuna Mooted
Posted on March 16th, 2010 by Wildlife Luver, under Fishes, Wildlife News.
Due to decades of unsustainable and illegal fishing in the Mediterranean Sea, Atlantic Bluefin Tuna is at serious risk of commercial extinction. This fish is having high demand in the seafood markets in Japan.
At present nearly 40,000 tons of Atlantic bluefin tuna are fished out of sea, which is four times the amount of fish that aqua researchers say can be taken to avoid extinction. If this fauna is listed in Appendix I , there is every chance of recovery to sustainable levels.
That’s why United States government will moot out a ban on international commercial trade in Atlantic bluefin tuna during the Convention on International Trade in Endangered Species (CITES), the world’s largest wildlife trade meeting which takes place later this month. Thanks to the US government in the field of wildlife conservation!!!
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Get to Know Coelacanths
Posted on December 16th, 2008 by Wildlife Luver, under Fishes.
The world is filled with weird and wonderful creatures, and a good proportion of them are found deep down in the ocean. We actually know more about the surface of the moon than we know about the deepest parts of the ocean here on planet earth.
Some marine species are of course very carefully studied and can even be found in marine aquariums in living rooms and public aquatic parks around the world. These species are however mostly the ones that are found close to the surface in the wild, e.g. the colourful reef fishes that never ventures further down than 30-40 meters.
For a creature that lives deep down at depths never explored by man, the risk (or chance) of ending up in an aquarium is slim. One of the most interesting beasts to surface from the depths during the 20th century is the Coelacanth.
Coelacanths are bony fishes from the order Coelacanthiformes. What makes them so interesting is the fact that before a living specimen was found during the 1930s, they were believed to have become completely extinct together with the dinosaurs at the end of the Cretaceous period.
In 1936, a museum curator named Marjorie Courtenay-Latimer befriended a Captain Goosen who worked on a trawler off the African coast. Goosen began saving interesting fish specimens for Courtenay-Latimer, and eventually he brought her a primitive looking fish caught about 70 meters (77 yards) from the mouth of the Chalumna River in the Indian Ocean. This strange looking fish turned out to be a true, living Coelacanth.
The finding proved that some Coelacanths had actually survived the through the Cretaceous period and continued to reproduce deep down in the ocean. Who knows what else we might find down there as we continue to explore the mesmerizing depths of the world’s oceans.
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Whales Lost Their Legs About 40 Million Years…
Posted on December 10th, 2008 by Wildlife Luver, under Fishes.
The Missing link between the whale and land animal was recently found out. It was nothing but a Raccoon like animal which looks like a long-tailed deer without antlers, or an overgrown long-legged rat.
In Kashmir region fossils recently dug up revealed the fact that the creature that bridges the whale and land animal is called as Indohyus.This creature revealed that there is crucial evolutionary similarities between it and water-dwelling cetaceans, such as porpoises, dolphins and whales.
This Indohyus can be considered as a closest relative of whale as thousands of fossils are recently dug in Kashmir, which is a part of India.Hans Thewissen, Professor of Anatomy at the Northeastern Ohio Universities College of Medicine confirmed that this animal is a “missing link” to the sister species to ancient whales. He added- Morphologically this raccoon like animal won’t resemble whale at all. But anatomically speaking both of them are having same thickened ear bone.
“The earliest Whales didn’t resemble the current one” Professor Thewissen said. “It looked like a cross between a dog and pig”. The whales lost their legs and walking ability on land about 40 million years age, he said.
Previously most of the scientists believed that the hippopotamus has been the perfect candidate for the closest land relative as it closely resemble the whale not only in its features but also similar DNA.
In the yester years (say, million years ago), whales were natural descends of India and Pakistan. But Hippos are native of Africa. So there is no possibilty of evolution of Hippos from whales.
Below is the image of the suspected Indohyus

