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Full-Text Articles in Aquaculture and Fisheries
Morphometric And Genetic Identification Of Eggs Of Spring-Spawning Sciaenids In Lower Chesapeake Bay, Louis B. Daniel Iii, John Graves
Morphometric And Genetic Identification Of Eggs Of Spring-Spawning Sciaenids In Lower Chesapeake Bay, Louis B. Daniel Iii, John Graves
VIMS Articles
Restriction-fragment length polymorphism (RFLP) analysis of mitochondrial mtDNA was used to identify morphologically similar eggs of spring spawning sciaenids in lower Chesapeake Bay. During spring 1990 and 1991, ichthyoplankton surveys were conducted in lower Chesapeake Bay to estimate seasonal egg production and population biomass of black drum, Pogonias cromis. Rearing experiments indicated that at least three species of sciaenid (silver perch, Bairdiella chrysoura; weakfish, Cynoscion regalis and P. cromis) were spawning in the survey area during both years. Specific identification of eggs based on previously published ranges of outside egg diameter (OED) were not reliable because of considerable overlap in …