Reproductive Plasticity in the Speckled Crab Arenaeus cribrarius (Decapoda, Brachyura, Portunidae) Associated with a Population Decline

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Reproductive strategies are responsible for population maintenance, and when equilibrium is achieved, the selected strategy may become a pattern. The shaping of these patterns is an important resource for a species' conservation and should receive special attention. The population biology of Ar...

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Autores principales: Andrade, L.S., Fransozo, V., Bertini, G., Negreiros-Fransozo, M.L., López-Greco, L.S.
Formato: JOUR
Materias:
Population regulation
reproductive strategy
sexual characters
sexual maturity
stock enhancement
crab
equilibrium
phenotypic plasticity
population decline
reproductive success
Arenaeus cribrarius
Brachyura
Decapoda (Crustacea)
Portunidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_07490208_v31_n3_p645_Andrade
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_07490208_v31_n3_p645_Andrade
record_format dspace
spelling todo:paper_07490208_v31_n3_p645_Andrade2023-10-03T15:39:10Z Reproductive Plasticity in the Speckled Crab Arenaeus cribrarius (Decapoda, Brachyura, Portunidae) Associated with a Population Decline Andrade, L.S. Fransozo, V. Bertini, G. Negreiros-Fransozo, M.L. López-Greco, L.S. Population regulation reproductive strategy sexual characters sexual maturity stock enhancement crab equilibrium phenotypic plasticity population decline reproductive strategy reproductive success sexual maturity Arenaeus cribrarius Brachyura Decapoda (Crustacea) Portunidae Reproductive strategies are responsible for population maintenance, and when equilibrium is achieved, the selected strategy may become a pattern. The shaping of these patterns is an important resource for a species' conservation and should receive special attention. The population biology of Arenaeus cribrarius was evaluated, focusing on recruitment, sexual maturity, and reproductive period, and the results were compared with available information about this species from previous catches. Crabs were collected monthly for 3 years, and for each specimen the sex, gonadal development, breeding condition, and carapace width (CW) were recorded. Seawater temperatures (from bottom and surface) were also recorded. Reproduction and recruitment only occurred during the warmer months of the year, and size at sexual maturity was smaller (50.1 mm CW) in males than in females (56.3 mm CW). These features differed from previous studies of the same species in the same sampling area, suggesting the plasticity of the reproductive strategy to optimize reproductive success and survival of the larvae. ©Coastal Education and Research Foundation, Inc. 2015. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07490208_v31_n3_p645_Andrade
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Population regulation
reproductive strategy
sexual characters
sexual maturity
stock enhancement
crab
equilibrium
phenotypic plasticity
population decline
reproductive strategy
reproductive success
sexual maturity
Arenaeus cribrarius
Brachyura
Decapoda (Crustacea)
Portunidae
spellingShingle Population regulation
reproductive strategy
sexual characters
sexual maturity
stock enhancement
crab
equilibrium
phenotypic plasticity
population decline
reproductive strategy
reproductive success
sexual maturity
Arenaeus cribrarius
Brachyura
Decapoda (Crustacea)
Portunidae
Andrade, L.S.
Fransozo, V.
Bertini, G.
Negreiros-Fransozo, M.L.
López-Greco, L.S.
Reproductive Plasticity in the Speckled Crab Arenaeus cribrarius (Decapoda, Brachyura, Portunidae) Associated with a Population Decline
topic_facet Population regulation
reproductive strategy
sexual characters
sexual maturity
stock enhancement
crab
equilibrium
phenotypic plasticity
population decline
reproductive strategy
reproductive success
sexual maturity
Arenaeus cribrarius
Brachyura
Decapoda (Crustacea)
Portunidae
description Reproductive strategies are responsible for population maintenance, and when equilibrium is achieved, the selected strategy may become a pattern. The shaping of these patterns is an important resource for a species' conservation and should receive special attention. The population biology of Arenaeus cribrarius was evaluated, focusing on recruitment, sexual maturity, and reproductive period, and the results were compared with available information about this species from previous catches. Crabs were collected monthly for 3 years, and for each specimen the sex, gonadal development, breeding condition, and carapace width (CW) were recorded. Seawater temperatures (from bottom and surface) were also recorded. Reproduction and recruitment only occurred during the warmer months of the year, and size at sexual maturity was smaller (50.1 mm CW) in males than in females (56.3 mm CW). These features differed from previous studies of the same species in the same sampling area, suggesting the plasticity of the reproductive strategy to optimize reproductive success and survival of the larvae. ©Coastal Education and Research Foundation, Inc. 2015.
format JOUR
author Andrade, L.S.
Fransozo, V.
Bertini, G.
Negreiros-Fransozo, M.L.
López-Greco, L.S.
author_facet Andrade, L.S.
Fransozo, V.
Bertini, G.
Negreiros-Fransozo, M.L.
López-Greco, L.S.
author_sort Andrade, L.S.
title Reproductive Plasticity in the Speckled Crab Arenaeus cribrarius (Decapoda, Brachyura, Portunidae) Associated with a Population Decline
title_short Reproductive Plasticity in the Speckled Crab Arenaeus cribrarius (Decapoda, Brachyura, Portunidae) Associated with a Population Decline
title_full Reproductive Plasticity in the Speckled Crab Arenaeus cribrarius (Decapoda, Brachyura, Portunidae) Associated with a Population Decline
title_fullStr Reproductive Plasticity in the Speckled Crab Arenaeus cribrarius (Decapoda, Brachyura, Portunidae) Associated with a Population Decline
title_full_unstemmed Reproductive Plasticity in the Speckled Crab Arenaeus cribrarius (Decapoda, Brachyura, Portunidae) Associated with a Population Decline
title_sort reproductive plasticity in the speckled crab arenaeus cribrarius (decapoda, brachyura, portunidae) associated with a population decline
url http://hdl.handle.net/20.500.12110/paper_07490208_v31_n3_p645_Andrade
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