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Appears in Collections:Faculty of Health Sciences and Sport Journal Articles
Peer Review Status: Refereed
Title: Foraging patterns of two syngnathid fishes: importance of harpacticoid copepods
Author(s): Tipton, Kevin
Bell, Susan S
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Keywords: Aquaculture
Fishes Feeding and feeds
Issue Date: Jul-1988
Date Deposited: 1-May-2013
Citation: Tipton K & Bell SS (1988) Foraging patterns of two syngnathid fishes: importance of harpacticoid copepods. Marine Ecology Progress Series, 47, pp. 31-43.
Abstract: The diets of juvenile ( less than 90 mm) Syngnathus scovelli and of Hippocampus zosterae, abundant members of a resident fish community in a Thalassia testudnum seagrass bed in Tampa Bay, Florida, were examined from Apnl to October 1984. Harpacticoid copepods comprised most of the diet, both in terms of percent number and percent biomass, for the smaller size classes of S. scovelli and for H. zosterae, and harpacticoids generally had the highest index of relative importance (IRI) for both syngnathids. S. scovelli displayed ontogenetic switching to larger food items, such as amphipods. shrimp and crustacean eggs. Harpacticus sp. 1 was the most common harpacticoid copepod species found in the guts of the 2 syngnathids, but was only rarely encountered in prey samples from seagrass blades. Three other harpacticoids, Paradactylopodia brevicornis sp., Dactylopodia tisboides and Harpacticus sp. 2 had high IRIS in H. zosterae but not in S. scovelli. Vanderploeg & Scavia's selectivity index (E') was calculated for sampling dates when both species of syngnathids were most abundant, using prey density on seagrass blades as a measure of prey avadabhty. Only the harpacticoid Harpacticus sp. 1 had high positive selectivity values.
Rights: Publisher policy allows this work to be made available in this repository. Published in Marine Ecology Progress Series, Vol. 47, pp. 31-43, 07/1988 by Inter-Research. All articles published by Inter-Research journals become open access under Creative Commons licence (CC-BY 3.0) 5 years after publication.
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