HOME >> BIOLOGY >> NEWS
Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe

/p>

Two fish tagged within minutes of each other wound up more than 5,000 km apart eight months later. One traveled 6,000 km southwest in 177 days past Bermuda to waters about 300 kilometres northeast of Cuba; the other remained in the eastern Atlantic and moved off the coasts of Portugal. A third tagged bluefin swam into the Mediterranean Sea and was caught by fishers southeast of Malta in 2005.

Experts believe there are two stocks of Atlantic bluefin tuna, one that spawns in the Mediterranean Sea, the other in the Gulf of Mexico and the Florida Straits. Its theorized that the two stocks forage together in the North Atlantic and travel to opposite sides of the ocean to reproduce.

These tagging data potentially provides new evidence that mixing is occurring in the northern waters of the eastern Atlantic and complement prior data showing that the western and eastern stocks of north Atlantic bluefin mingle in rich foraging grounds of the central Atlantic, says Barbara Block, chief scientist of the CoML Tagging of Pacific Predators program and TAG.

Its possible all three fish were spawned in the Mediterranean, she emphasized. Were conducting genetic tests on fin clips taken while tagging to help confirm the origins of the specific bluefin tuna that we followed electronically.

The research is funded by Irelands Bord Iascaigh Mhara, the Packard Foundation and the Monterey Bay Aquarium Foundation.

Understanding the Gulf of Mexico Bluefin Tuna Breeding Area

Yet another modern tagging experiment has yielded important new insights into the vital bluefin breeding area in the Gulf of Mexico and the oceanographic conditions in which the adult tuna court and spawn.

The work by U.S. researchers Steven L. H. Teo, Andre M. Boustany and Barbara Block, for publication in the journal Marine Biology, sheds light on habitat used by spawning bluefin tuna and may one day lead to better protection
'"/>

Contact: Terry Collins
terrycollins@rogers.com
416-538-8712
Census of Marine Life
5-Aug-2007


Page: 1 2 3 4 5 6

Related biology news :

1. First Biodiversity Census of coral reef ecosystems in the NW Hawaiian Islands
2. Census of Marine Life US National Committee hosts 2006 Marine Biodiversity Workshop
3. Fish with chips reporting from ocean top highlights at Census of Marine Life mid-point
4. Census of Marine Life explorers surprised by diversity, density of Arctic creatures
5. Census of Marine Life - Discoveries and Highlights 2004: Scientists add 4m+ records, 13,000 species
6. Marine worm opens new window on early cell development
7. Marine phytoplankton changes form to protect itself from different predators
8. German-Korean collaboration in Polar and Marine research will be intensified
9. Marine reserves could save coral reefs
10. Marine scientists monitor longest mammal migration
11. Elsevier launches new journal, Marine Genomics

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/23/2020)... ... 23, 2020 , ... GIOSTAR/HEAMGEN has developed and ... The red blood cells are made utilizing a bioreactor that permits the ... and replaces the need for a human blood donor. GIOSTAR/HEAMGEN mature ...
(Date:1/22/2020)... MESA, Calif. (PRWEB) , ... January 21, 2020 ... ... of Robert Pozil to lead the company’s new Business Development Department. The move, ... 2019. Mr. Pozil had been previously serving as the company’s Senior Vice President ...
(Date:1/10/2020)... ... January 09, 2020 , ... Cutting Edge Spine, a leader ... clearance and commercial launch of the latest addition to its bioactive portfolio of ... is made of PEEK-OPTIMA HA Enhanced material supplied by Invibio Biomaterial Solutions. Cutting ...
Breaking Biology News(10 mins):
(Date:1/7/2020)... (PRWEB) , ... January 06, 2020 , ... ... a Digital World at The Fletcher School at Tufts University, is pleased to ... Foundation. The grant will be administered by Tufts University, and will help to ...
(Date:1/7/2020)... ... 06, 2020 , ... ABCT , the Accelerator for ... to participate in the annual program. Twelve ventures will participate in the 6.5-month-long ... network. All startups will receive an entrepreneur coach, access to active business professionals ...
(Date:12/31/2019)... ... 2019 , ... At this year's SLAS conference, Visikol will present several talks ... 3D cell culture , advanced imaging and multiplex analysis . Specifically, ... steatosis , inflammation and fibrosis as well as a 2D cell culture ...
(Date:12/27/2019)... ... December 27, 2019 , ... Leak Detection ... for the Pharmaceutical, Biotechnology, Medical Device and Food Packaging Industries is excited to ... Following acquisition by CLJ Holdings in February, 2019, a comprehensive and aggressive reorganization ...
Breaking Biology Technology:
Cached News: