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Supplementing salmon populations may worsen their decline

EUROPEAN UNION
Friday, July 03, 2015, 04:00 (GMT + 9)

Supplementing declining salmon populations with fish from other genetically distinct populations may not be the best method of conservation, according to a recent European study. For certain salmon populations in France it was found that such introductions resulted in offspring with lower body weight and length, possibly worsening their decline. Some previous studies have found that translocating animals from one population to another can lead to ‘hybrid vigour’, as increased genetic diversity gives the offspring an enhanced ability to survive and reproduce. Conversely, in some cases, introducing new individuals can instead lead to ‘outbreeding depression’, where the offspring suffer lower survival or reproduction. This effect is more likely if the two populations are more genetically different. An extreme example of this is the offspring of t... FULL STORY

Chile
SONAPESCA: artisanal sector lacks ability to catch more jumbo flying squid
Jul 3, 01:30
The president of the National Fishing Society (SONAPESCA), Francisco Orrego, argues that there is no basis for... FULL STORY
India
Odisha boosts tilapia farming to double fishing production
Jul 3, 00:50
Odisha authorities have partnered the international organization WorldFish to develop a project aimed at tilap... FULL STORY
Spain
Spanish fleet to be allowed to catch further 600 tonnes of anchovy
Jul 2, 23:50
The Ministry of Agriculture, Food and Environment (MAGRAMA) has succeeded, through an agreement with Portugal,... FULL STORY
United States
Spawn timing turns critical for snapper larvae survival
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The larvae of some reef fish species appear to survive better depending on the timing of when they were spawne... FULL STORY

Ecuador
IATTC rejects fishing quota increase to three countries
Jul 3, 03:30
The requests submitted by three member countries of the Inter-American Tropical Tuna Commission (IATTC) to have their tuna catch quota increased, did ... FULL STORY

Argentina
Winter ban set for hake in Common Fishing Zone
Jul 3, 03:00
The Joint Technical Commission for the Maritime Front (CTMFM) established a winter closed area for hake (Merluccius hubbsi) capture in the Common Fish... FULL STORY

Thailand
Fishing sector warns of possible collapse under Govt’s strict fishing rules
Jul 3, 02:20
Thai fisheries sector expressed concerns about the negative impact the strict fishery regulations imposed by the government in an effort to avoid sanc... FULL STORY
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Lenguaje
FEATURED EVENTS
  
TOP STORIES
Report highlights tuna industry efforts, but also inaction in some fisheries
Worldwide In its latest annual report, ISSF outlines progress and achievements for tuna sustainability in 2014 and lays out the various needs for continuous improvement of global tuna fisheries through collaboration and advocacy.
Lobster capture season extended
Canada Fisheries and Oceans Minister authorised a four four-day extension to the Spring lobster capture season throughout the Gulf of Saint Lawrence to compensate for the lost fishing days on account of adverse weather conditions.
Tesco's sales fall while Aldi and Lidl consolidate
United Kingdom Britain's biggest supermarket chain Tesco reported a fall in sales amounting to 1.3 per cent in its first quarter, lower than expected, whereas Morrisons, Aldi and Lidl achieved growth in their sales.
Fishing industry maintains stable growth
Russia Fed. The Russian fishing industry has remained stable in the last three years, with catches amounting to around 4.3 million tonnes of fish annually, according to the Russian State Statistics Service.
 
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