date:Jan 20, 2014
spent fishing). They then used this to calculate an 'eventual threat index'. This index compares the vulnerability of each species to that of a 'key' species, whose importance to the fishery's profits or management is likely to limit its long-term exploitation rate. Species with higher vulnerabilities than the key species are likely to be adversely affected because the fishery will continue to be profitable even if they are reduced to very low numbers.
To test the method, the researchers calcu