Publicado por: pongpesca | 2010/01/27

Artigo – “Squandering The Seas: How Shrimp Trawling Is Threatening Ecological Integrity And Food Security Around The World”

 

by: The Environmental Justice Foundation (EJF) Contributors
en | Environmental Justice Foundation (EJF)

 

  • Publisher: Environmental Justice Foundation (EJF) 
  • Number Of Pages:  48
  • Publication Date:   2003
  • ISBN-10 / ASIN:1904523013   
  • ISBN-13 / EAN:9781904523017  

Excerpt:
Squandering The Seas: How Shrimp Trawling Is Threatening Ecological Integrity And Food Security Around The World

Shrimp trawlers, particularly those in the tropics, can catch over 400 marine species in their nets. These non-target species or ‘bycatch’ are often discarded by shrimp fishermen – either they are inedible or are simply not worth retaining when shrimp is worth up to 30 times more per kilogram. Shrimp fisheries typically produce bycatch-to-shrimp ratios of 5:1 in temperate areas and 10:1 in the tropics. However, higher ratios have been found, such as 21:1 in the case of the Australian Northern Prawn Fishery. This essentially means 21 kg of marine organisms are caught in order to obtain 1 kg of shrimp. Currently, tens of millions of tonnes of bycatch are taken by shrimp trawl fisheries worldwide each year. Most shrimp trawlers discard this non-target catch. Shrimp fisheries alone are responsible for one third of the world’s discarded catch, despite producing less than 2% of global seafood.

Shrimp often ends up on the tables of wealthy consumers in the developed world. It is a luxury item. For poor fishing communities, fish is a necessity. Globally, 450 million people rely on fisheries as a source of food and income. In Bangladesh, the fisheries sector provides 78% of animal protein intake for the average person. Equally high dependencies are found in other developing nations, yet it is countries such as these that face food security issues linked to overfishing.

People in the developing world witness shrimp trawlers – sometimes foreign- owned – destroy their traditional fishing grounds and incidentally catch and squander local fish stocks. In some cases this fishing is illegal, in other cases it is the result of fisheries agreements, such as those between the EU and African nations. Yet those who suffer the environmental costs of shrimp trawling are unlikely to see the financial rewards of these agreements.

Shrimp trawling frequently takes place in shallow coastal waters, which act as nursery grounds for many commercial fish species. Trawling removes vast numbers of juvenile fish that are needed to sustain fish stocks. In addition, by dragging large, heavy nets along the seabed, habitats that support marine life are damaged. One study found that the pass of a single trawl could remove up to 25% of seabed life. In heavily-trawled areas, habitats have little chance to recover and in some cases may be permanently altered.”

Artigo completo: aqui

Fonte: Gigapedia


Deixe uma Resposta

Preencha os seus detalhes abaixo ou clique num ícone para iniciar sessão:

Logótipo da WordPress.com

Está a comentar usando a sua conta WordPress.com Terminar Sessão /  Alterar )

Google photo

Está a comentar usando a sua conta Google Terminar Sessão /  Alterar )

Imagem do Twitter

Está a comentar usando a sua conta Twitter Terminar Sessão /  Alterar )

Facebook photo

Está a comentar usando a sua conta Facebook Terminar Sessão /  Alterar )

Connecting to %s

Categorias

%d bloggers like this: