Please use this identifier to cite or link to this item: http://dspace.azti.es/handle/24689/923
Files in This Item:
There are no files associated with this item.
Title: Differential reproductive investment in females of Lithodes santolla (Decapoda: Anomura) from different regions of southern South America
Authors: Diaz-Arce, Natalia; Di Salvatore, Pablo; Gowland-Sainz, Maria F. and Lovrich, Gustavo A.
Citation: SCIENTIA MARINA, 2019, 83, 327-336
Abstract: The southern king crab Lithodes santolla experiences low temperatures and unpredictable food conditions, and is under variable fishing pressure. To compare the reproductive investment of females, crabs were captured from three sites (Beagle Channel 55 degrees S, Tierra del Fuego Atlantic coast 52-54 degrees S and San Jorge Gulf 45-47 degrees S). Fecundity, water and lipid contents were measured in midgut gland, ovary and muscle. To assess the maternal investment in the offspring, egg masses were analysed on lipid, protein, water and inorganic matter contents, egg volume and embryo size. Although fecundity was similar among sites, San Jorge Gulf females showed higher water and lower lipid contents in somatic and reproductive organs. The egg mass energy reserves varied among sites, showing the highest lipid values in the Beagle Channel, and the highest protein and inorganic matter content in San Jorge Gulf. Though water content was similar, egg volume and embryo size were higher in San Jorge Gulf. Moreover, maternal size did not correlate with egg volume, embryo size or lipid, protein and inorganic matter content of the eggs. This study suggests that reproductive investment of L. santolla varies among regions exposed to different environmental conditions, such as the quality of food available, denoting a female compensatory mechanism.
Keywords: southern king crab; Lithodidae; energy reserves; maternal investment; energy allocation; lecithotrophy; RED KING CRAB; LECITHOTROPHIC LARVAL DEVELOPMENT; PARALITHODES-CAMTSCHATICUS; EMBRYONIC-DEVELOPMENT; PARALOMIS-GRANULOSA; BEAGLE CHANNEL; EGG SIZE; BIOCHEMICAL-COMPOSITION; CHEMICAL-COMPOSITION; SNOW CRAB
Issue Date: 2019
Publisher: CONSEJO SUPERIOR INVESTIGACIONES CIENTIFICAS-CSIC
Type: Article
Language: 
DOI: 10.3989/scimar.04974.31A
URI: http://dspace.azti.es/handle/24689/923
ISSN: 0214-8358
E-ISSN: 1886-8134
Funder: Argentine State through grant from FONCyTFONCyT [PICT 12-0554, PICT 16-0142]
FiDEX scholarship - Bordeaux University
Argentine CONICETConsejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)
Appears in Publication types:Artículos científicos



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.