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Potential Predation On Fish Eggs By The Lobate Ctenophore Mnemiopsis-Leidyi Within And Outside The Chesapeake Bay Plume, John J. Govoni, John E. Olney
Potential Predation On Fish Eggs By The Lobate Ctenophore Mnemiopsis-Leidyi Within And Outside The Chesapeake Bay Plume, John J. Govoni, John E. Olney
VIMS Articles
In Chesapeake Bay in June, the predatory lobate ctenophore Mnemiopsis leidyi and the eggs of the bay anchovy Anchoa mitchilli typically reach seasonal and localized abundance together. When examined at small vertical (1-3m), horizontal (10-50m), and temporal (6-hour) scales, the co-occurrence of M. leidyi and fish eggs (32.3-74.2% of which were A. mitchilli) was greatest in the northern reaches of the mouth of Chesapeake Bay, where the water column was stratified. Stratification to the south was effected by the Chesapeake Bay plume. With estimates of ctenophore clearance rate reported elsewhere and observed densities of ctenophores and fish eggs, potential predation …