Originally Posted By: boater
Originally Posted By: Lucky Louie


Originally Posted By: SBD
No wonder i've never heard of it, incredibly small group..

Yes, fisherman is singular unlike a 40x larger number which would stand for gill net mortality.



lets say the release mortality rate for gillnets is 40 percent and the gillnetters can net until they have reached there lets say 5 percent esa take rate and then they are done, now lets say the new method for commercials has a 10 percent release mortality rate and they still have the 5 percent esa take so now they will fish until they reach there 5 percent esa take amount and they are done, what i fail to see is how many esa listed fish they saved with the new lower release mortality rate other than zero, can you explain why the 40 percent release rate is so important and how many esa listed fish would be saved if infact they do go to a new method but still fish until there esa take rate is killed ?



Here some more numbers to play with in addition to the already 40% mortality rate of gill nets.

http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2664.2009.01673.x/pdf

A few quotes from the (2009) study

Synthesis and applications. Our analyses indicate that non-retention in gillnet fisheries is an important and under-appreciated consequence of the exploitation of salmon. Stock estimates for exploited populations that do not account for non-retention mortality overestimate the number of reproductively viable fish.

Fungal infection was strongly associated with the severity of gillnet injury. No infection was observed in uninjured fish in 2005. Nearly half (43%) of gillnet-injured fish were infected, with rates of 6%, 76% and100% for fish with minor, moderate and severe injuries respectively.
Fish without fungal infections lived more than 15 times longer(t2,173 = 16Æ95, P < 0Æ001; Fig. 5b) and, among fish observed in-stream, spent more than twice as long in-stream. Similar patterns were noted in 2006 and 2007.

The percentage known alive at the second sampling occasion (v1),includes all fish that survive a minimum of two sampling intervals(3 days) from stream entry. Given this criteria, the majority(51%) of fish with gillnet injuries were predicted to fail to spawn in contrast to 6% of control fish. Nearly all fish (93%) with fungal infection at the time of tagging failed to spawn.
_________________________
The world will not be destroyed by those that are evil, but by those who watch them without doing anything.- Albert Einstein

No you can’t have my rights---I’m still using them