2.5 饥饿对鱼类集群行为的影响 Barber等研究了饥饿对欧洲鱼(Phoxinus phoxinus)和三刺鱼(Gasterosteus aculeatus) 集群行为的影响,发现饥饿状态下这两种鱼的集群性均逐渐减弱 [35] 。
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难怪欧盟的鱼存量88%被过度捕捞,这是欧洲委员会现在自己承认的。
No wonder the EU's stocks are 88% overfished, as the European Commission itself now admits.
当鲑鱼养殖在欧洲开始的时候,这种鱼经常伴随着虱子大量滋生,随后虱子又蔓延到野生鱼上。
When salmon farming first started in Europe, the fish often became infested with lice, which then spread to wild fish.
今天,欧洲鳇鱼正濒临灭绝,因此,大多数鱼鳔都来自其他鱼类品种,包括越南鲶鱼。
Today the sturgeon is endangered, so most bladders are harvested from other species of fish including the Vietnamese catfish.
They become the principal supplier of grain and fish in Europe.
他们成为欧洲谷类和鱼产的主要供货商
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