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Title: Reproduction, energy storage and metabolic requirements in a mesophotic population at the gorgonian Paramuricea macrospina
Author: Grinyó, Jordi
Viladrich, Núria
Díaz, David
Muñoz, Anabel
Mallol, Sandra
Salazar, Janire
Castillo, Raquel
Gili, Josep Maria, 1953-
Gori, Andrea
Keywords: Antozous
Issue Date: 26-Sep-2018
Publisher: Public Library of Science (PLoS)
Abstract: This study examined the sexual reproductive cycle, energy storage and metabolic requirements of a Mediterranean gorgonian in a mesophotic ecosystem (~70 m depth). Paramuricea macrospina resulted to be a gonochoric internal brooding species with a 1:1 population sex ratio. Oogenesis lasted ~12-14 months, whereas spermatogenesis was significantly shorter, only lasting 6 months. Fertilization occurred during late summer (August) and larval release occurred during autumn (September-October). The organic matter and total lipid content showed a slight seasonal variability. Stable isotopic composition remained constant throughout the year, reflecting a general stability in gorgonian food sources. Conversely, the free fatty acid composition varied seasonally, reflecting changes in P. macrospina energetic demands probably related to gametogenesis and larval brooding. The reproductive ecology and biochemical composition of P. macrospina significantly differ from shallow coastal gorgonian species, reflecting the higher environmental stability of deeper environments.
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It is part of: PLoS One, 2018, vol. 13, num. 9, p. e0203308
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ISSN: 1932-6203
Appears in Collections:Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)

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