Feeding Relations of the Atlantic Silverside Menidia menidia in the Minas Basin, Bay of Fundy

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Abstract
Feeding habits of the Atlantic silverside M. menidia were studied from June-Nov. 1979. Analysis of gut fullness with respect to tidal state suggests that feeding occurs on ebb tide and not during flooding tide. Extreme turbidity prevented feeding on the rising tide. The major prey of larvae and early juveniles was Eurytemora herdmani; larger silversides (> 100 mm) fed more heavily upon Corophium volutator, Diastylis polita, Crangon septemspinosa, various isopods and insects. These benthic organisms may be made more accessible to the silverside by tidal turbulence causing resuspension of the sediments and benthos during the flooding tide. Tide-related movements of M. menidia result in maximum utilization of these periodically available food resources.

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