Lumpsucker fishes mating season

This video is about a lumpsucker fish couple in the Wadden Sea near Griend island in the Netherlands. They swim around an iron bar.

The blueish female is about 25 centimeter; the reddish male is smaller.

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Coral reef discovery in Iraqi waters

This video is called ♥♥ Coral Reef Fish (3 hours).

From Nature:

Discovery of a living coral reef in the coastal waters of Iraq

Thomas Pohl, Sameh W. Al-Muqdadi, Malik H. Ali, Nadia Al-Mudaffar Fawzi, Hermann Ehrlich & Broder Merkel

06 March 2014

Until now, it has been well-established that coral complex in the Arabian/Persian Gulf only exist in the coastal regions of Bahrain, Iran, Kuwait, Oman, Qatar, Saudi Arabia, and United Arab Emirates and it was thought that there are no coral reefs in Iraq.

However, here for the first time we show the existence of a living 28 km2 large coral reef in this country. These corals are adapted to one of the most extreme coral-bearing environments on earth: the seawater temperature in this area ranges between 14 and 34°C. The discovery of the unique coral reef oasis in the turbid coastal waters of Iraq will stimulate the interest of governmental agencies, environmental organizations, as well as of the international scientific community working on the fundamental understanding of coral marine ecosystems and global climate today.

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Great white shark Lydia’s record-breaking journey

This video is called Great White Shark Living Legend Documentary.

By Alyssa Danigelis, Discovery News:

Great White Shark On Historic Marathon Migration

March 07, 2014 10:03am ET

A great white shark called Lydia is set to make history. First tagged a year ago off the Florida coast, she’s on her way to becoming the first tracked white shark to cross the Atlantic.

Lydia is being monitored by the marine nonprofit Ocearch as part of its ongoing project to help researchers and scientists gather previously unattainable data on shark movement, biology and health. The 14-foot-6-inch great white has migrated more than 19,000 miles since being tagged, and is about to cross the mid-Atlantic ridge — closer to Europe than the United States.

Over time, Ocearch has collaborated with over 50 researchers from more than 20 institutions. The team that tagged Lydia included Massachusetts Division of Marine Fisheries senior scientist Greg Skomal. Tracking helps the scientists learn more about great white shark biology, he told me last summer. And that could mean providing beach managers with better information to keep both the sharks and the public safe.

The Ocearch team uses two different kinds of electronic tags, Skomal explained. One is a pop-up satellite tag that can archive data such as depth and light levels. The tag can be programmed to release from the shark and then float on the water surface to transmit data back to the scientists.

Another is a real-time satellite tag, which connects to a satellite whenever the shark comes to the surface, providing data about the shark’s movements so scientists — and the public — can follow a shark’s migration patterns over a long time. This is what Lydia has.

In order to tag a great white shark, the team first had to lure it to a smaller boat — no easy task — then catch the shark safely and transfer it to the main Ocearch vessel via hydraulic lift. The team only had 15 minutes to attach tracking tech, do scans, take a small sample and then release the shark. In August, they successfully tagged a 14-foot-2-inch great white named Katharine and followed her progress from Cape Cod to Daytona Beach, Florida.

In the future, an underwater robot could even track tagged great white sharks. Skomal, a Shark Week veteran (video), has been working on an autonomous underwater shark tracking robot that can compete with the robots that West Coast shark trackers Chris Lowe and Chris Clark are developing. “For science purposes it’s great to know everything you possibly can about all the animals on Earth. White sharks are no exception,” Skomal said.

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New shark research

This video says about itself:

A “shark‘s eye” view: Witnessing the life of a top predator

28 Feb 2014

Scientists at the University of Hawaii and the University of Tokyo are attaching sophisticated sensors and video cameras to sharks, giving them a “shark’s eye” view of the ocean and revealing new findings about how sharks swim and live in their natural environment. The new research is being presented at the 2014 Ocean Sciences Meeting co-sponsored by the Association for the Sciences of Limnology and Oceanography, The Oceanography Society and the American Geophysical Union.

For more information, visit here.

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