Weekly Roundup 6

Written by on January 11, 2013 in Marine Life

Other stories worth reading this weekend:

Pacific bluefin tuna.

Pacific bluefin tuna. Photo credit: tomosuke214 via photopin cc

Japan bluefin tuna fetches record $1.7m” from BBC News

At the first auction of the year, a bluefin tuna sold for the record-high price of $1.7 million (155, yen), nearly three times the price paid at last year’s auction. While this particular tuna was a record-breaking fish, weighing 489lbs (222kg), keep in mind that prices do not necessarily reflect quality or size. At these auctions, the prices have been linked to “publicity and setting the tone for the business year.”

Bluefin tuna populations down” from PEW

In a related story, scientists just released a new stock assessment for bluefin tuna stating that the population has dropped by 96.4 percent due to decades of overfishing. The findings show that bluefin tuna are “in danger of all but disappearing.”

The Kraken Wakes: First Images of Giant Squid Filmed in Deep Ocean” from Reuters

In case you missed it earlier in the week, follow these links to see images and short video clips of the giant deep-sea squid. This is the first time that the giant squid has been filmed alive and in its natural habitat.

Manned submersibles: a tool for scientific research?” from National Oceanography Center

Check out this great article about Ron Allum, the engineer behind James Cameron’s trip to the Challenger Deep. He discusses his work with Cameron and his plans for the future of manned submersibles.

Penguins’ private lives recorded in Antarctica” from NBC News

Biologist David Ainley has been studying Adélie penguins in Antarctic for 17 years. Adélie penguins live for an average of 20 years, so his long-term research project is helping to answer questions about their population changes.

Scientists Use Marine Robots to Detect Endangered Whales” from WHOI

A team of researchers monitored whales in the open ocean by using gliders that are capable of detecting and classifying calls from four different species of whales. The gliders are able to transmit data in real time which could contribute to better management of human-whale interactions.

“Whales’ Foraging Strategies Revealed by New Technology” from American Institute of Biological Sciences (link no longer active)

Using multisensor tags attached to whales with suction cups, researchers are learning more about different diving and foraging techniques of filter-feeding whales. Some conserve energy by swimming through dense patches of prey, while others make high-speed, high-energy lunges.

Will we ever…lose all of our coral reefs?” from BBC Future

This is a great article about the future of the world’s coral reefs. It’s pretty clear that coral reefs are in danger, but scientists still don’t know everything, or even how to protect them from all of the dangers we do know about. The damage is on such a large scale that it is possible, however unlikely, that we could lose all of our coral reefs.

Humpback whale breaching.

Humpback whale breaching. Photo credit: NOAA.

Copyright © 2013 by Marine Science Today, a publication of Marine Science Today LLC.

About the Author

About the Author: Emily Tripp is the Publisher and Editor of MarineScienceToday.com. She holds marine science and biology degrees from the University of Miami's Rosenstiel School of Marine and Atmospheric Science and a Master of Advanced Studies degree in Marine Biodiversity and Conservation from Scripps Institution of Oceanography. When she's not writing about marine science, she's probably running around outside or playing with her dog. .


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