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RBT5813
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RBT58132023-03-16T16:20:57Z Population dynamics of Excirolana armata (Isopoda: Cirolanidae) in Buenos Aires beaches, Argentina Population dynamics of Excirolana armata (Isopoda: Cirolanidae) in Buenos Aires beaches, Argentina Thompson - M. Sánchez de Bock, G.A. Cirolánidos dinámica poblacional playas arenosas Excirolana armata Cirolanids population dynamics sandy beaches The population dynamics and structure of the cirolanid isopod Excirolana armata were studied from January 2004 through March 2005 in three sandy beaches of Buenos Aires Province (Argentina). Beaches with different types of anthropogenic influences were selected. The von Bertalanffy's growth function parameters were determined for each population. There was a marked fluctuation in growth, with lowest rates in late autumn and winter. The isopod population of the beach exposed to the highest degree of anthropogenic erosion had the lowest and most stable values of abundance and biomass, the highest mortality rate and the shortest life span. Temporal fluctuations of the allometric coefficient of the length-dry weight relationship indicated a cycling pattern, with lowest values during the autumn-winter period and peak values in the summer. Females predominated in the populations due to the short duration of the reproductive season. Argentine and Uruguayan populations showed similar growth performance indices, but differed in their abundance and biomass values, probably as a response to variations in beach morphodynamics and biological interactions. Universidad de Costa Rica 2007-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/5813 10.15517/rbt.v55i0.5813 Revista de Biología Tropical; Vol. 55 No. S1 (2007): Volume 55 – Supplement 1 – June 2007: Proceedings of Crustacea - Workshop; 131–140 Revista de Biología Tropical; Vol. 55 Núm. S1 (2007): Volumen 55 – Suplemento 1 – Junio 2007: Reunión Crustacea - Taller; 131–140 Revista Biología Tropical; Vol. 55 N.º S1 (2007): Volume 55 – Supplement 1 – June 2007: Proceedings of Crustacea - Workshop; 131–140 2215-2075 0034-7744 10.15517/rbt.v55i0 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/5813/5549 Copyright (c) 2007 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
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| institution |
Universidad de Costa Rica
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| collection |
Revista de Biología Tropical
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| language |
eng
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| format |
Online
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| author |
Thompson - M. Sánchez de Bock, G.A.
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| spellingShingle |
Thompson - M. Sánchez de Bock, G.A.
Population dynamics of Excirolana armata (Isopoda: Cirolanidae) in Buenos Aires beaches, Argentina
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| author_facet |
Thompson - M. Sánchez de Bock, G.A.
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| author_sort |
Thompson - M. Sánchez de Bock, G.A.
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| title |
Population dynamics of Excirolana armata (Isopoda: Cirolanidae) in Buenos Aires beaches, Argentina
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| title_short |
Population dynamics of Excirolana armata (Isopoda: Cirolanidae) in Buenos Aires beaches, Argentina
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| title_full |
Population dynamics of Excirolana armata (Isopoda: Cirolanidae) in Buenos Aires beaches, Argentina
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| title_fullStr |
Population dynamics of Excirolana armata (Isopoda: Cirolanidae) in Buenos Aires beaches, Argentina
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| title_full_unstemmed |
Population dynamics of Excirolana armata (Isopoda: Cirolanidae) in Buenos Aires beaches, Argentina
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| title_sort |
population dynamics of excirolana armata (isopoda: cirolanidae) in buenos aires beaches, argentina
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| title_alt |
Population dynamics of Excirolana armata (Isopoda: Cirolanidae) in Buenos Aires beaches, Argentina
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| publisher |
Universidad de Costa Rica
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| publishDate |
2007
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| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/5813
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| work_keys_str_mv |
AT thompsonmsanchezdebockga populationdynamicsofexcirolanaarmataisopodacirolanidaeinbuenosairesbeachesargentina
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| _version_ |
1810114576774070272
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