New marine biology discoveries


This video is called Philippine Marine Life.

From LiveScience:

Incredible Deep-Sea Discoveries Announced

By LiveScience Staff

posted: 09 November 2008 01:06 pm ET

An astounding batch of new deep-sea discoveries, from strange shark behavior to gigantic bacteria, was announced today by an international group of 2,000 scientists from 82 nations.

The Census of Marine Life is a 10-year project to determine what’s down there. Among the new findings:

A large proportion of deep sea octopus species worldwide evolved from common ancestor species that still exist in the Southern Ocean. Octopuses started migrating to new ocean basins more than 30 million years ago when, as Antarctica cooled and a large icesheet grew, nature created a “thermohaline expressway,” a northbound flow of tasty frigid water with high salt and oxygen content. Isolated in new habitat conditions, many different species evolved; some octopuses, for example, losing their defensive ink sacs — pointless at perpetually dark depths.

The finding will be reported Nov. 11 in the journal Cladistics.

Scientists also discovered what they’re calling a White Shark Café: Satellite tags revealed a previously unknown behavior of white sharks traveling long distances each winter to concentrate in the Pacific for up to six months. During these months, both males and females make frequent, repetitive dives to depths of 300 yards, which researchers theorize may be significant in either feeding or reproduction.

In the eastern South Pacific, researchers found a diverse set of giant, filamentous, multi-cellular marine bacteria. They may be “living fossils” that developed in the earliest ocean when oxygen was either absent or much diminished, living on the toxic gas hydrogen sulfide, the scientists said.

Another survey found frequent examples of gigantism common in Antarctic waters. The researchers collected huge scaly worms, giant crustaceans, starfish and sea spiders as big as dinner plates.

Among the other discoveries that will be revealed at a meeting this week in Spain:

* The first record of abundant and diverse comb jellies under Arctic pack ice .
* Surprising richness of species in many deep-sea locations, including the Celebes Sea in the southern Philippines and several deep canyons.
* At least 85 new species of zooplankton, small drifting and swimming marine animals.

Scientists estimate there are at least 1 million species of marine organisms on Earth. But as of now, only about 230,000 are known.

This is the fourth report from the Census of Marine Life since the project began in 2000. A final report will be issued in 2010.

Researchers say a marine ragworm has brain structures that are directly related to the human brain: here.

Keiko, Nessie, and giant squids: a collection of stories on animals from the deep: here.

4 thoughts on “New marine biology discoveries

  1. By looking at your website I get some updated information about the many different types of portable cranes are now available in the market and consequently the several applications some of them I never thought before now. I wonder how it is possible to undertake a reliable market study in order to go for some standard products, which will then be saleable at a fair price compared to custom made cranes that will cost more. I also wonder about how to decide for the many accessories available on the market because in the end is all comes down to financial benefits even if I do realize that there are many ergonomic advantages or maybe even laws that require the use of portable hoists. There is also a question about safety that applies to the way the cranes are operated. Good and reliable instructions especially related to overweight that can be the cause of serious accident. Finally there is the issue of warranty, which is not so easy to solve. OK for the main product itself it is not a big deal, but what about all the accessories you buy from other suppliers?

    Like

  2. Pingback: Antarctic islands have more species than Galapagos | Dear Kitty. Some blog

  3. Pingback: Arctic zooplankton, new study | Dear Kitty. Some blog

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.