Scientists achieve first tracking of salmon from headwaters in Rockies through Pacific...(and listening arrays can be used in any ...)
and listening arrays can be used in any river or ocean. And POST tags generate in-river survival data equivalent to that obtained from the PIT system, and extend the possible results beyond rivers out into the ocean.
Future applications of POST's tags and arrays
Tags will continue to miniaturize, allowing researchers to study ever smaller individuals and species such as herring. And next generation receivers will allow the deployment of lines in waters deeper than the current 200 meter limit, allowing scientists to follow deeper dwellers, like halibut (www.eol.org/taxa/17051689) and black cod (sablefish, www.eol.org/taxa/17144157).
POST's array of receivers will expand and increase in resolution, allowing scientists to look to the far reaches of the continental shelf for answers to questions of regional importance.
The evolving database management system will soon enable scientists to examine relationships between animal movements and behaviour and environmental variables in the ocean, which will shed light over time on the effects of climate change on marine species, populations and ecosystems.
"As network and data capabilities grow, new knowledge will become useful in testing the strengths and weaknesses of previously held beliefs," says Mr. Bolger. "New discoveries made possible by POST will eventually lead to greater conservation and management of biologically and commercially important animals."
Building on past success
Earlier, POST's ocean arrays revealed surprisingly extensive cross-border movements of both green and white sturgeon along the coast, offering insights into gaps in protection strategies.
For example, white sturgeon (www.eol.org/taxa/17053432) are listed as endangered in British Columbia but are fished on the Columbia
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| Contact: Terry Collins terrycollins@rogers.com 416-538-8712 Census of Marine Life Source:Eurekalert |
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