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Analysis of carbohydrates in breeding females of the sea star Anasterias minuta Perrier 1875. Metabolic interrelations between different organs and the brooding process

Published online by Cambridge University Press:  23 May 2016

Roberto Carlos Cerda ,
María Luján Flores ,
Hector Eliseo Zaixso  and
Osvaldo León Córdoba
Roberto Carlos Cerda
Affiliation:
Facultad de Ciencias Naturales, Universidad Nacional de la Patagonia San Juan Bosco, Km 4, Comodoro Rivadavia (9000), Chubut, Argentina
María Luján Flores
Affiliation:
Facultad de Ciencias Naturales, Universidad Nacional de la Patagonia San Juan Bosco, Km 4, Comodoro Rivadavia (9000), Chubut, Argentina
Hector Eliseo Zaixso
Affiliation:
Facultad de Humanidades y Ciencias Sociales, Universidad Nacional de la Patagonia San Juan Bosco, Instituto de Desarrollo Costero, Km 4, Comodoro Rivadavia (9000), Chubut, Argentina
Osvaldo León Córdoba*
Affiliation:
Facultad de Ciencias Naturales, Universidad Nacional de la Patagonia San Juan Bosco, Km 4, Comodoro Rivadavia (9000), Chubut, Argentina
*
Correspondence should be addressed to:O. L. Córdoba, Facultad de Ciencias Naturales, Universidad Nacional de la Patagonia San Juan Bosco, Km 4, Comodoro Rivadavia (9000), Chubut, Argentina email: [email protected]
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Abstract

The sea star Anasterias minuta broods the embryos in the oral region; embryos then block the mouth and prevent the parent from taking up nutrients during the brooding period. Here, we analysed content of carbohydrates in different organs as well as in eggs, embryos and juveniles of A. minuta. We found that these biochemical components are used mainly by the pyloric caeca and the body wall as reserve substances to endure the periods of reduced consumption rates of non-brooding females and males and the long-term starvation of brooding females. The ability to translocate carbohydrates from females to embryos and juveniles observed in other species of sea stars was not confirmed.

Keywords

echinodermscarbohydratesAnasterias minutabroodingtranslocationPatagonia
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 97 , Issue 6 , September 2017 , pp. 1267 - 1272
Copyright
Copyright © Marine Biological Association of the United Kingdom 2016 

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