Just a couple of recent fish/conservation related postings from JournOwl.com that I thought I would pass along…
The incredible shrinking reef fish
They say a picture is worth a thousand words and in the case of Loren McClenachan’s June 2009 publication in The Journal of the Society for Conservation Biology there is evidence of a major decline in the size of fish caught in the Florida Keys. McClenachan used a unique method for quantitating the changes of reef fish size over the last 50 years by turning to photographic evidence and documented data of harvested trophy fish.
Sea-cage pathogen factory: Salmon and Sea Lice
But the documentary is just a springboard into the real nuts and bolts of the fish farming issue that definitely has a marketable appeal to businessmen and everyday people concerned about overfishing alike. Unfortunately the aquaculture solution has unintentional consequences including a decline in wild fish populations, perhaps to near extinction, in areas with high concentrations of fish farms.
According to Neil Frazer, Sea-Cage Aquaculture, Sea Lice, and Declines of Wild Fish, “The difference is that sea cages protect farm fish from the usual pathogen-control mechanisms of nature, such as predators, but not from the pathogens themselves. A sea cage thus becomes an unintended pathogen factory.”
James
Scott A.
Cristina
.-= Cristina´s last blog ..Ninots Categoria especial, SJ-6 =-.
oil spill claims
