Enhancing knowledge on low‐value fishing species: the distinct reproductive strategy of two gurnard species
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/49510 |
Resumo: | The depletion and overexploitation of several fish stock demands for a valorisation of non-target and discarded species. Nonetheless, such species are often poorly studied, and information on their biological parameters must be gathered for effective population management. For 1 year, the reproductive strategy of the piper gurnard Trigla lyra and the red gurnard Chelidonichthys cuculus was studied by monthly samples obtained from commercial boats operating on western Portuguese coast. Both species showed a biased sex ratio towards females, especially for larger length classes. Length at first maturity could be estimated only for red gurnard (22.1 and 19.9 cm for females and males, respectively) because all piper gurnard individuals caught were mature. Piper gurnard showed determinate fecundity and a short spawning season, from November to February with a peak in January, whereas red gurnard showed indeterminate fecundity and a wide spawning season, from late December to May. The relative annual fecundity estimated for red gurnard (1893 ± 728 oocytes × g−1 eviscerated weight [EW]) was higher than the one estimated for piper gurnard (1018 ± 250 oocytes×g−1 EW). Although important information for understanding the species dynamics is presented in this study, additional information on other life-history parameters and of species landings is required. |
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Enhancing knowledge on low‐value fishing species: the distinct reproductive strategy of two gurnard speciesfecunditynon-target speciespiper gurnardred gurnardreproductionThe depletion and overexploitation of several fish stock demands for a valorisation of non-target and discarded species. Nonetheless, such species are often poorly studied, and information on their biological parameters must be gathered for effective population management. For 1 year, the reproductive strategy of the piper gurnard Trigla lyra and the red gurnard Chelidonichthys cuculus was studied by monthly samples obtained from commercial boats operating on western Portuguese coast. Both species showed a biased sex ratio towards females, especially for larger length classes. Length at first maturity could be estimated only for red gurnard (22.1 and 19.9 cm for females and males, respectively) because all piper gurnard individuals caught were mature. Piper gurnard showed determinate fecundity and a short spawning season, from November to February with a peak in January, whereas red gurnard showed indeterminate fecundity and a wide spawning season, from late December to May. The relative annual fecundity estimated for red gurnard (1893 ± 728 oocytes × g−1 eviscerated weight [EW]) was higher than the one estimated for piper gurnard (1018 ± 250 oocytes×g−1 EW). Although important information for understanding the species dynamics is presented in this study, additional information on other life-history parameters and of species landings is required.WileyRepositório da Universidade de LisboaNeves, AnaSousa, InêsSequeira, VeraVieira, Ana RitaSilva, ElisabeteSilva, FredericaDuarte, Ana MartaMendes, SusanaGanhão, RuiAssis, CarlosSampaio e rebelo, RuiMagalhães, Maria FilomenaGil, Maria ManuelGordo, Leonel Serrano2022-07-01T00:31:02Z2021-072021-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/49510engNeves, A., Sousa, I., Sequeira, V., Vieira, A. R., Silva, E., Silva, F., Duarte, A. M., Mendes, S., Ganhão, R., Assis, C., Rebelo, R., Magalhães, M. F., Gil, M. M., & Gordo, L. S. (2021). Enhancing knowledge on low-value fishing species: the distinct reproductive strategy of two gurnard species. Journal of Fish Biology, 1– 12. https://doi.org/10.1111/jfb.148491095-864910.1111/jfb.14849info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:53:19Zoai:repositorio.ul.pt:10451/49510Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:01:07.838449Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Enhancing knowledge on low‐value fishing species: the distinct reproductive strategy of two gurnard species |
title |
Enhancing knowledge on low‐value fishing species: the distinct reproductive strategy of two gurnard species |
spellingShingle |
Enhancing knowledge on low‐value fishing species: the distinct reproductive strategy of two gurnard species Neves, Ana fecundity non-target species piper gurnard red gurnard reproduction |
title_short |
Enhancing knowledge on low‐value fishing species: the distinct reproductive strategy of two gurnard species |
title_full |
Enhancing knowledge on low‐value fishing species: the distinct reproductive strategy of two gurnard species |
title_fullStr |
Enhancing knowledge on low‐value fishing species: the distinct reproductive strategy of two gurnard species |
title_full_unstemmed |
Enhancing knowledge on low‐value fishing species: the distinct reproductive strategy of two gurnard species |
title_sort |
Enhancing knowledge on low‐value fishing species: the distinct reproductive strategy of two gurnard species |
author |
Neves, Ana |
author_facet |
Neves, Ana Sousa, Inês Sequeira, Vera Vieira, Ana Rita Silva, Elisabete Silva, Frederica Duarte, Ana Marta Mendes, Susana Ganhão, Rui Assis, Carlos Sampaio e rebelo, Rui Magalhães, Maria Filomena Gil, Maria Manuel Gordo, Leonel Serrano |
author_role |
author |
author2 |
Sousa, Inês Sequeira, Vera Vieira, Ana Rita Silva, Elisabete Silva, Frederica Duarte, Ana Marta Mendes, Susana Ganhão, Rui Assis, Carlos Sampaio e rebelo, Rui Magalhães, Maria Filomena Gil, Maria Manuel Gordo, Leonel Serrano |
author2_role |
author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Neves, Ana Sousa, Inês Sequeira, Vera Vieira, Ana Rita Silva, Elisabete Silva, Frederica Duarte, Ana Marta Mendes, Susana Ganhão, Rui Assis, Carlos Sampaio e rebelo, Rui Magalhães, Maria Filomena Gil, Maria Manuel Gordo, Leonel Serrano |
dc.subject.por.fl_str_mv |
fecundity non-target species piper gurnard red gurnard reproduction |
topic |
fecundity non-target species piper gurnard red gurnard reproduction |
description |
The depletion and overexploitation of several fish stock demands for a valorisation of non-target and discarded species. Nonetheless, such species are often poorly studied, and information on their biological parameters must be gathered for effective population management. For 1 year, the reproductive strategy of the piper gurnard Trigla lyra and the red gurnard Chelidonichthys cuculus was studied by monthly samples obtained from commercial boats operating on western Portuguese coast. Both species showed a biased sex ratio towards females, especially for larger length classes. Length at first maturity could be estimated only for red gurnard (22.1 and 19.9 cm for females and males, respectively) because all piper gurnard individuals caught were mature. Piper gurnard showed determinate fecundity and a short spawning season, from November to February with a peak in January, whereas red gurnard showed indeterminate fecundity and a wide spawning season, from late December to May. The relative annual fecundity estimated for red gurnard (1893 ± 728 oocytes × g−1 eviscerated weight [EW]) was higher than the one estimated for piper gurnard (1018 ± 250 oocytes×g−1 EW). Although important information for understanding the species dynamics is presented in this study, additional information on other life-history parameters and of species landings is required. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-07 2021-07-01T00:00:00Z 2022-07-01T00:31:02Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/49510 |
url |
http://hdl.handle.net/10451/49510 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Neves, A., Sousa, I., Sequeira, V., Vieira, A. R., Silva, E., Silva, F., Duarte, A. M., Mendes, S., Ganhão, R., Assis, C., Rebelo, R., Magalhães, M. F., Gil, M. M., & Gordo, L. S. (2021). Enhancing knowledge on low-value fishing species: the distinct reproductive strategy of two gurnard species. Journal of Fish Biology, 1– 12. https://doi.org/10.1111/jfb.14849 1095-8649 10.1111/jfb.14849 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799134559887949824 |