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ผู้เขียน หัวข้อ: Warnings issued for 'largely unprotected' Mediterranean ecosystems  (อ่าน 2444 ครั้ง)
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« เมื่อ: เมษายน 17, 2010, 12:13:47 PM »


Grouper is in severe danger in the Mediterranean, according to Oceana. (Photo: Stock File)

Warnings issued for 'largely unprotected' Mediterranean ecosystems

SPAIN
Friday, April 16, 2010, 22:30 (GMT + 9)

The conservation group Oceana and Social Welfare of Caixa Catalonia have released an alert on the “largely unprotected" state of marine ecosystems that now prevails. They point out the predicament of the swordfish (Xiphias gladius) and grouper (Epinephelus marginatus) of the Mediterranean Sea, in particular, and the lack of regulation for these resources in danger of extinction.

In a report authored by both organisations, they maintain the swordfish and grouper’s difficulty of survival is similar to that of the sardine (Sardine pilchardus), European anchovy (Engraulis encrasicolus), hake (Merluccius merluccius), striped red mullet (Mullus surmuletus) and red shrimp (Aristeus antennatus), also threatened by fishing over-exploitation. However, they stress that these five species do benefit from monitoring and conservation efforts by their state.

According to Oceana and Caixa Catalonia, the limited protection of these commercial species leads their future to possibly being “mortgaged,” similar to the ecological assessment and the future of the fishing sector that now works in Mediterranean waters.

A reduction was observed in anchovy and transparent goby populations of the Balearic Islands, which has repercussions on the marine trophic chain, since they serve as the food base for resources like tuna and several cetaceans, the report also says.

This population decrease is not registered in the waters of Catalonia, Valencia and Murcia.

The proliferation of fish farms and fattening cages retards the conservation of the smallest species, since fattening a kilogramme of tuna requires between 15 and 20 kilos of other resources, the report also notes.

The document, titled ‘Threatened Species,’ contends that more than 400 European marine species exist on whose protection there is scientific and political consensus.

It also affirms that that figure “demonstrates the enormous delay that exists in the conservation of the oceanic medium, for the last tally of the Census for Marine Life identified some 320,000 species.”

Given that the year 2010 was declared the International Year of Biodiversity, "the marine medium should not be left behind" which is why "the conservation of biodiversity and marine resources is one of the main pending subjects in agreements and international policies of nature conservation," the authors of the report conclude.

By Analia Murias
editorial@fis.com
www.fis.com

 

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