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Article: Growth rate estimation of Hexaplex (Trunculariopsis) trunculus (gastropoda: muricidae) based on mark/recapture experiments in the Ria Formosa lagoon (Algarve coast, southern Portugal).
- Article from:
- Journal of Shellfish Research
- Article date:
- April 1, 2006
- Author:
CopyrightCOPYRIGHT 2006 National Shellfisheries Association, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ABSTRACT This study reports growth rates estimates for Hexaplex (Trunculariopsis) trunculus (Gastropoda: Muricidae) from mark/recapture experiments carried out in the Ria Formosa lagoon (Algarve coast, southern Portugal). A total of 726 specimens (shell length and total weight ranging between 20.65-58.36 mm and 0.86-19.89 g, respectively) were marked with Dymo tape tags and released into a fish culture earth pond. During the marking process, no adverse effects on the whelks' health and behavior or immediate postmarking mortality were detected. Periodical recapture operations were undertaken using a traditional fishing gear designated locally as "wallet-line" and by hand ...
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