Data Report on the Vertical Distribution of the Eggs and Larvae of Northern Anchovy, 'Engraulis mordax', at Two Stations in the Southern California Bight, March-April 1980

摘要

Knowledge of the vertical distribution of eggs and larvae of the northern anchovy, Engraulis mordax, is needed for conducting research cruises designed to estimate the spawning biomass of that species. Ahlstrom's (1959) study of the vertical distribution of ichthyoplankton species off southern California and Baja California provided information on eggs and larvae of anchovy but was based on only 22 Leavitt net series taken from 1941 to 1955. None of these studies has used the more advanced multiple opening and closing net systems (Wiebe et al., 1976. Because of this the authors conducted a cruise during March-April 1980 aboard the Scripps Institution of Oceanography research vessel Ellen B. Scripps, using the MESSHAI system (Pommeranz et al., 1979) as the primary sampler. The report presents a detailed listing of data collected on that cruise. A separate paper providing an analysis of these data is in preparation.