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Article: The Effects of Water Temperature, Salinity, and Currents on the Survival and Distribution of the Infective Copepodid Stage of Sea Lice (Lepeophtheirus Salmonis) Originating on Atlantic Salmon Farms in the Broughton Archipelago of British Columbia, Canada
- Article from:
- Reviews in Fisheries Science
- Article date:
- September 1, 2005
- Author:
CopyrightCopyright CRC Press 2005. Provided by ProQuest LLC. (Hide copyright information)
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Recent reports claim that pink salmon fry are heavily infected by Lepeoptheirus salmonis as they pass salmon farms in the Broughton Archipelago. Hydrodynamic studies reveal that the top 25 to 40 m of water generally flows seaward through the archipelago under the influence of freshwater, reducing surface salinity from 15-25% from June through November of most years. Sea lice larvae do not consistently develop to an infectious stage at salinities <30[per thousand
]-providing a natural control in the archipelago. The larvae require 4.2-5.8 days to develop to the infective stage at the temperatures typical during the time that pink salmon fry are migrating. Net current speeds measured at 15 ...
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Article: Sea Lice Activity: Salmon Farming in the Broughton ...
Canadian Corporate News;
May 29, 2008 ;
700+ words
... ... its success in minimizing the number of sea lice on its farmed fish in the Broughton Archipelago ... reducing or eliminating the transfer of sea lice back to wild fish. Wild salmon start ... knowledge is inconclusive about the threat of sea lice to wild salmon, conservation is the best ...
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