SEASONAL PATTERNS IN THE BIOCHEMICAL CONSTITUENTS AND BODY COMPONENT INDEXES OF THE MURICID GASTROPOD,THAIS HAEMASTOMA

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 1978 English Publisher:University of Chicago PressJournal:The Biological Bulletin, volume 155, pages 259-272 (issn: 0006-3185, eissn: 1939-8697,

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Authors: Belisle, Barbara Wolfanger.; Stickle, William B;

doi: 10.2307/1540951

SEASONAL PATTERNS IN THE BIOCHEMICAL CONSTITUENTS AND BODY COMPONENT INDEXES OF THE MURICID GASTROPOD,THAIS HAEMASTOMA

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Abstract

1. Seasonal changes in the body component indexes of Thais haemastoma were studied over a 15 month period. Seasonal changes in the protein, carbohydrate and lipid level and content were determined for soft components over a 12 month period.2. The capsule-albumin gland index was determined to be the best indicator of reproductive readiness in Thais haemastoma. This index cycled in a bimodal pattern, peaking in April and July.3. Male testis-digestive gland and remaining visceral mass indexes cycled seasonally with major peaks in April and secondary peaks in September and October, respectively. The female ovary-digestive gland cycled in a unimodal pattern, peaking in April. Changes in the shell index of both sexes were found to reflect changes in the sum total of the soft body indexes.4. Seasonal changes in protein, carbohydrate and lipid content were found to be predominantly due to changes in component indexes and not to fluctuations in constituent levels.

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Louisiana State University
United States

Keywords

Source: Biodiversity Heritage Library, Source: BHL, Biodiversity, BHL-Corpus, Source: https://biodiversitylibrary.org

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