Distribution and density of Brevoortia patronus (Gulf menhaden) eggs and larvae in the continental shelf waters of western Louisiana
Abstract:Eggs and larvae of Brevoortia patronus (gulf menhaden) were identified from 179 oceanic samples taken during five monthly ichthyoplankton cruises from December 1981 to April 1982. Stepped-oblique plankton tows were taken with a bongo-type net at five transects over the continental shelf from west of the Sabine River, Texas, to east of the Mermentau River, Louisiana. Charts of gulf menhaden egg and larval density (no./100 m3) are presented along with surface temperature and salinity plots. A peak in average egg density (28/100 m3) occurred in December between the 10- and 23-m isobaths where surface temperatures and salinities ranged from 15 to 18°C and 30 to 36‰. Most larval menhaden were taken between the 10- and 37-m isobaths where surface temperatures and salinities ranged from 12 to 180°C and 29 to 36‰. The peak in average larval density (120/100 m3) occurred in February.
Document Type: Research Article
Publication date: January 1, 1985
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