Other stories worth reading this weekend:
“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.”
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.
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“Whales’ Foraging Strategies Revealed by New Technology” from American Institute of Biological Sciences (link no longer active)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.
Copyright © 2013 by Marine Science Today, a publication of Marine Science Today LLC.