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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/32401

Title: Variation of Calcium Levels in the Tissues and Hemolymph of Litopenaeus vannamei at Various Molting Stages and Salinities
Authors: Chun-Huei Li;Sha-Yen Cheng
Contributors: NTOU:Department of Environmental Biology and Fisheries Science
Keywords: calcium levels;hemolymph;Litopenaeus vannamei;molting stage;salinity;tissue ions
Date: 2012-02
Issue Date: 2012-06-18T05:42:37Z
Publisher: Journal of Crustacean Biology
Abstract: abstract:We measured concentrations of Ca2+ in tissues (hemolymph, hepatopancreas, cuticle, and muscle) of the whiteleg shrimp Litopenaeus vannamei (Boone, 1931) and recorded changes in tissue calcium levels at molting stages and different salinities. Calcium in tissues varied significantly with molting stage (p < 0.05). Salinity also affected Ca2+ concentrations in tissues (p < 0.05). The highest Ca2+ concentrations were found in the cuticle, followed by the hepatopancreas. Ratios of Ca2+/Na+ in tissues (except for muscle) varied with the molting stage and were higher in 4 g L-1 than in other salinities. Calcium entering the shrimp may initially be mineralized in the cuticle or stored in the hemolymph and hepatopancreas, after which it is released to support mineralization in the post-molt period. Muscles may take part in the growth of L. vannamei by storing calcium during the molting cycle.
Relation: 32(1), pp.101-108
URI: http://ntour.ntou.edu.tw/handle/987654321/32401
Appears in Collections:[環境生物與漁業科學學系] 期刊論文

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