Feeding Habits , Age , Growth , and Reproduction of Atlantic Spadefish Chaetodipterus faber ( Pisces : Ephippidae ) in South Carolina *

Content Provider	Semantic Scholar
Author	Hayse, John W.
Copyright Year	2008
Abstract	Grice Marine Biological Laboratory 2 J5 Fort Johnson Rd .. Charleston. South Carolina Present address: Department of Zoology. Miami University. Oxford. Ohio 45056 Feeding Habits, Age, Growth, and Reproduction of Atlantic Spadefish Chaetodipterus faber (Pisces: Ephippidae) in South Carolina* Abstract. Atlantic spadefish Chaetodipterusfabe-t· were collected from South Carolina between July 1985 and May 1987 to examine feeding habits, age and growth, and reproduction. Analysis of stomach contents by habitat showed that fish from estuarine areas and offshore artificial reefs ate mainly hydroids. while Anthozoa were dominant food items for fish from nearshore marine areas. Stomach contents from fish obtained by hook-and-Iine near offshore artificial reefs. using Stomolophus rneleag1'is as bait, indicated that scyphozoan jellyfish were the dominant prey, but fish collected by spear or net had stomach contents dominated by hydroids. anthozoans, and polychaetes. Ages of Atlantic spadefish were determined from whole sagittae. Marginal increment analysis indicated that annuli formed between December and May. The von Bertalanffy growth equation, derived from back-calculated mean total lengths at age was l, = 490(1-e -0.34(/+0.18''), where t is age in years, and II = total length at age. Mean asymptotic total length was calculated to be 490 mm. The oldest fish examined was age 8 and 504 mm TL. Histological examination indicated that fish matured at age 1 and spawned from May through August.
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Language	English
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Resource Type	Article