Baja California's Biological Transition Zones: Refuges for the California Sardine |
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Authors: | Daniel Lluch-Belda Daniel B Lluch-Cota Salvador E Lluch-Cota |
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Institution: | (1) Centro Interdisciplinario de Ciencias Marinas (CICIMAR-IPN), P.O. Box 592, 23000 La Paz Baja California Sur, Mexico;(2) Centro de Investigaciones Biológicas del Noroeste, S.C. (CIBNOR), P.O. Box 128, 23000 La Paz Baja California Sur, Mexico |
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Abstract: | The information on the transitional areas between the temperate and tropical domains at the southern extent of the California
Current System is reviewed and described, particularly searching for the relative isolation or interchange between the western
coast of the Baja California peninsula and the Gulf of California, as well as mechanisms that permit the existence of sizeable
stocks of California sardine. Biological Action Centers that have high productivity throughout the year, as opposed to the
rest of the coastal area, are found in both the western coast of the peninsula at the Sebastián Vizcaíno—Punta Eugenia region
and in the Ballenas Channel inside the gulf; these features support large biomasses of sardine throughout the full year and
serve as long term refuges during adverse periods. The role of the Sebastián Vizcaino sardine stock as the primary group for
expansion is examined.
This revised version was published online in August 2006 with corrections to the Cover Date. |
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Keywords: | California Current Gulf of California California sardine productivity interchange transition zones |
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