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NATURAL DIET OF THE CRAB HEPATUS PUDIBUNDUS (BRACHYURA: CALAPPIDAE) IN FORTALEZA BAY, UBATUBA (SP), BRAZIL

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ABSTRACT The natural diet of Hepatus pudibundus in Fortaleza Bay, Ubatuba (SP), Brazil, was determined, based on two methods: Frequency Occurrence and Percentage Points. Foregut contents of 219 specimens collected from November 1988 to October 1989 in 7 different areas of Fortaleza Bay were analyzed. Hepatus pudibundus had varied recognizable food categories, in decreasing order: crustaceans, fish, sediment (a facultative scavenger), and molluscs. Other food categories were in low percentage: bryozoans, algae, annelids, foraminiferans, cnidarians, and echinoderms ranked fifth through tenth on the basis of the methods utilized. A significant difference was found in the amount of food in the diet during seasonal analysis (autumn > summer > winter > spring) and among the 7 sampling areas of Fortaleza Bay. We suggest that the crab H. pudibundus is an opportunistic omnivorous crustacean, and is not exclusively molluscivorous.

Affiliations: 1: Departamento de Biologia-FFCLRP, Universidade de Sao Paulo (USP), Av. Bandeirantes, 3900, Cep. 14040-901, Ribeirao Preto (SP), Brazil. (e-mail: flmantel@usp.br)

10.1163/1937240X97X00279
/content/journals/10.1163/1937240x97x00279
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/content/journals/10.1163/1937240x97x00279
2017-07-22

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