The use of otoliths to separate groups of northern Anchovies, Engraulis mordax

Spratt, Jerome D. (1972) The use of otoliths to separate groups of northern Anchovies, Engraulis mordax. Long Beach, CA, California Department of Fish and Game, (Marine Resources Technical Report, 1)

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Abstract

Variation in the otolith weight to standard length relationship of anchovies reveal that southern and central Baja California, northern Baja California (Mexico) to central California (U.S.A.), and northern California contain distinct groups of anchovies. A quantitative measurement of these differences was determined between fishes from these three areas. The degree of overlap (probability of correctly classifying a sample of fish from the otolith-standard length relationship) was highest (.82) between northern California and southern and central Baja California. (27pp.)

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