Society for Conservation Biology, 20th Annual Meeting
Conservation Without Borders
June 24, 2006 - June 28, 2006
San Jose, CA
Presentation at this event.
A primary objective of the 2006 meeting is to transcend real and perceived boundaries of ecology, sociology, politics, and human behavior that impede conservation science and its application. By leveraging the intellectual capital of professionals and students with diverse expertise and affiliations, the aim is to build conservation capacity at local, regional, and global levels. Major topic areas will range from partnerships with private landowners to marine and freshwater conservation to transboundary conservation.
Hake Habitat in the California Current: Distribution, Dynamics and Management Implications.
Agostini V N , R Francis , A Hollowed , S Pierce , C Wilson
Migratory species present a unique challenge for marine conservation. Their habitat is spatially dynamic therefore highly variable over time. Also, many migratory stocks are transboundary thus associated with complex policy scenarios. Understanding the spatial processes driving the distribution of these species is essential for effective management and conservation. Pacific hake is an ecologically and commercially important California Current (CC) species. The hake stock is shared between the US and Canada. A great deal of controversy revolves around this fishery as stock distribution along the West Coast of North America is highly variable, with the larger and most valuable fish intermittently occupying Canadian waters. This study uses acoustic data to examine the three dimensional distribution of hake in the CC system. We analyze data on abundance and distribution of hake, intensity and distribution of alongshore flow and temperature. Our three dimensional view of hake habitat reveals fundamental processes driving hake distribution that could not have been described by the traditional two dimensional view of marine habitats. We find hake habitat to be highly dynamic and related to current flow. Habitat boundaries appear to change in response to interannual climate forcing. The management and conservation of Pacific hake, must take these dynamics into account.
Authors highlighted in blue are staff of the Institute for Ocean Conservation Science.