Powerboat-World.com
 
 
News Home Video Gallery Newsletters FishingBoating Features Photo Gallery Sail-World Australia Australian Cruising
Sail-World Australia Australian Cruising MarineBusiness-World

 

Sail-World.com : Paper urges more protection for Tunas

Paper urges more protection for Tunas

'Tuna'    International Game Fish Association
For the first time, all species of scombrids (tunas, bonitos, mackerels and Spanish mackerels) and billfishes (swordfish and marlins) have been assessed for the International Union for the Conservation of Nature (IUCN) Red List of Threatened Species.

Of the 61 known species, seven are classified in a threatened category, being at serious risk of extinction. Four species are listed as Near Threatened and nearly two-thirds have been placed in the Least Concern category.

The results show that the situation is particularly serious for tunas. Five of the eight species of tuna are in the threatened or near threatened IUCN Red List Categories.These include:Southern Bluefin (Thunnus maccoyii), Critically Endangered; Atlantic Bluefin (T. thynnus), Endangered; Bigeye (T. obesus), Vulnerable; Yellowfin (T. albacares), Near Threatened; and Albacore (T. alalunga), Near Threatened.

This new information will be invaluable in helping governments make decisions which will safeguard the future of these species, many of which are of extremely high economic value, and was a timely input for the third Joint Meeting of the Tuna RFMOs (Regional Fisheries Management Organizations).

'This is the first time that fishery scientists, ichthyologists and conservationists have come together to jointly produce an assessment of the threats facing a commercially important group of fishes,' says Dr Bruce B. Collette, Chair of the IUCN Species Survival Commission’s (SSC) Tuna and Billfish Specialist Group, Senior Scientist of the NOAA National Marine Fisheries Service, and lead author of the paper. Jason Schratwieser, Conservation Director at the International Game Fish Association, served as part of this assessment panel.

There is growing concern that in spite of the healthy status of several epipelagic fish stocks (those living near the surface), some scombrid and billfish species are being heavily overfished, and there is a lack of resolve to protect against overexploitation driven by high prices. Many populations are exploited by multinational fisheries whose regulation, from a political perspective, is exceedingly difficult.

'All three bluefin tuna species are susceptible to collapse under continued excessive fishing pressure. The Southern bluefin has already essentially crashed, with little hope of recovery,' says Dr. Kent Carpenter, Professor at Old Dominion University, manager of IUCN’s Marine Biodiversity Unit and an author of the paper.'If no changes are made to current fishing practices, the western Atlantic bluefin stocks are at risk of collapse as they are showing little sign that the population is rebuilding following a significant reduction in the 1970s.'

Three species of billfishes are in threatened or Near Threatened categories: blue marlin (Makaira nigricans), Vulnerable; white marlin (Kajikia albida), Vulnerable; and striped marlin (Kajikia audax), Near Threatened.

Most of the long-lived economically valuable species are considered threatened. They mature later than short-lived species and their reproductive turnover is longer, and as such recovery from population declines takes more time. As these scombrids and billfishes are at the top of the pelagic food web, population reductions of these predators may cause significant negative effects on other species that are critical to the balance of the marine ecosystem and that are economically important as a source of food.

The future of threatened scombrids and billfishes rests on the ability of RFMOs and fishing nations to properly manage these species. Southern and Atlantic bluefin populations have been so reduced that the most efficient way to avoid collapse is to shut down the fisheries until stocks are rebuilt to healthy levels. However, this would cause substantial economic hardship and hinder the ability of RFMOs to control fishing because of the increased incentive for illegal fishing that would be created under these circumstances.

'Temporarily shutting down tuna fisheries would only be a part of a much needed recovery program. In order to prevent illegal fishing, strong deterrents need to be implemented,' says Jean-Christophe Vié,Deputy Director, IUCN’s Global Species Programme. 'This new study shows that there is an urgent need for effective management. Scientific findings should not be discarded in order to maintain short-term profit. Marine life and jobs for future generations are both at stake.'

The recovery of fish stocks is possible through reducing fishing-induced mortality rates to well below the maximum sustainable yield (MSY), as shown in the case of the highly valued eastern population of the Atlantic bluefin. Recently exploited at three times the MSY, a decrease in the total allowable catch and stricter monitoring and compliance measures have led to recent catch reductions of almost 75% over the past few years. This will enable the species to recover to sustainable levels as long as the current fishing controls are maintained.

International Game Fish Association website




by International Game Fish Association

  

Click on the FB Like link to post this story to your FB wall

http://www.powerboat-world.com/index.cfm?nid=86189

8:40 PM Wed 20 Jul 2011 GMT






Click here for printer friendly version
Click here to send us feedback or comments about this story.

Click for further information on
Fishing News and information

Related News Stories:

20 Jun 2012  In circles over whiting
10 Nov 2011  Caring for your gear
17 Aug 2011  Making your own hardbodied lures
04 Aug 2011  Heavy Metal Breamin'
03 Aug 2011  Lake Bullen Merri fish cleaning table
01 Aug 2011  Family fishing with Carl Hyland
29 Jul 2011  Hooks, the definitive point
14 Jul 2011  Arnhemland, the earth's eighth wonder!
09 Jun 2011  Snapper Classic at Coffs Harbour safety reminder issued
20 May 2011  World Class Tuna fishing continues (Part 2)
MORE STORIES ...

Power Boat News





























Fort Lauderdale International Boat Show - 13 things to See and do by Fort Lauderdale International Boat Show,






























Yamaha inspires students to succeed by Yamaha Motor Australia,








Swan celebrates sales success *Feature
4x4 Outdoors Show and Fishing and Boating Expo on the horizon
Polar research: Six priorities for Antarctic science
Stealth i14 out of China
Bivalves' ability to clean chemicals from waterways
Brisbane Boat Show 2014 - New boat engines set to rev up interest
Two rescued in tow from 13km offshore
Enhancing boating safety in the Mallacoota region
National 4x4 Outdoors Show and Fishing and Boating Expo - 4WD heaven
Yanmar selected for big torque at low revs
Sydney Boat Show display winners recognised *Feature
China Yachting Conference lines up the speakers
2014 National 4x4 Outdoors Show: Popularity of caravanning and camping
2015 Sydney Inte'l Boat Show - Boating Industry commences planning
Last chance to join 2014 Multihull Solutions Whitsunday Rendezvous
Dangerous conditions for boaters from this evening
Pacific Boating membership offers hassle-free boating *Feature
Marine15 expands trade, networking and B2B opportunities *Feature
2014 Auckland on the Water Boatshow - Huge prize packs up for grabs
4X4 Outdoors Show and Fishing and Boating Expo wows water lovers
John Wilson has sights set on second P1 SuperStock title   
Torquay Grand Prix - Pertemps tops table on penultimate day   
Plain sailing for yachts with river cargo ship ban in Shanghai   
Dangerous conditions for boaters from this afternoon   
Sydney Int'l Boat Show - Stellar results for Multihull Solutions   
NSW Environment Minister awards 'Fish Friendly' Marina Accreditations   
Refurbished Protector project 'better than buying new'   
Gold Coast International Marine Expo - High-Diver Steve Black is back   
4x4 Outdoors Show, Fishing and Boating Expo - Campfire cooking corner   
See the heat with FLIR ONE *Feature   
John Temple to retire, Will Sangster appointed General Manager   
Multihull Central launches Aquila range at SIBS *Feature   
If all else fails read the instructions!!   
If all else fails read the instructions!!   
Sun shines on recreational boating at Sydney International Boat Show   
Phuket Yacht Show: new kid on the block taking on PIMEX? *Feature   
2014 Offshore Superboat Championships - The boats are back!   
Sydney International Boat Show - Days 3 & 4 *Feature   
Kirby Marine launch 13metre Naiad Tender   
Shellfish reefs in Port Phillip Bay to be rejuvenated   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png   http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph contact the photographer directly.
XLXL NEW PBW
LocalAds   DE  ES  FR  IT