Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae)
Autor(a) principal: | |
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Data de Publicação: | 2002 |
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/10400.3/337 |
Resumo: | Basic biological information for a sublittoral population of the red blenny Parablennius ruber is presented based on a two-year study involving 2350 specimens. The length-weight relationship was given by TW = 0.011 x TL2.963 (where TW = total weight, in g; TL = total length, in cm). Age at length data was inferred by modal analysis of the monthly length-frequency distributions. The parameters of the fitted von Bertalanffy growth equation (with seasonal component, birth date on February, 15th) were L∞ = 13.22 cm; K = 0.62 year-1; to = -0.39 year; C = 0.68; WP = 0.97. Macroscopic examination of the gonads, and analysis of the monthly values of the gonadosomatic index, indicated that reproduction occurs in winter, with a maximum in February and March, when water temperatures are low. Individuals become sexually mature around 6 cm TL, a size that can be reached in less than one year. Stomach contents suggest an omnivorous diet mainly composed of scrapped filamentous algae and associated invertebrates. |
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Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae)BlenniidaeParablennius ruberFish BiologyLength–weight RelationshipLength–frequency DistributionsModal AnalysisBasic biological information for a sublittoral population of the red blenny Parablennius ruber is presented based on a two-year study involving 2350 specimens. The length-weight relationship was given by TW = 0.011 x TL2.963 (where TW = total weight, in g; TL = total length, in cm). Age at length data was inferred by modal analysis of the monthly length-frequency distributions. The parameters of the fitted von Bertalanffy growth equation (with seasonal component, birth date on February, 15th) were L∞ = 13.22 cm; K = 0.62 year-1; to = -0.39 year; C = 0.68; WP = 0.97. Macroscopic examination of the gonads, and analysis of the monthly values of the gonadosomatic index, indicated that reproduction occurs in winter, with a maximum in February and March, when water temperatures are low. Individuals become sexually mature around 6 cm TL, a size that can be reached in less than one year. Stomach contents suggest an omnivorous diet mainly composed of scrapped filamentous algae and associated invertebrates.Repositório da Universidade dos AçoresAzevedo, José M. N.Homem, Nídia2009-09-29T14:09:34Z20022002-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/337engAzevedo, J. M. N. & Homem, N. (2002). Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae). Cybium 26, 129–1332101-0315info: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:RCAAP2022-12-20T14:27:30Zoai:repositorio.uac.pt:10400.3/337Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:23:18.208622Repositório 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 |
Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae) |
title |
Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae) |
spellingShingle |
Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae) Azevedo, José M. N. Blenniidae Parablennius ruber Fish Biology Length–weight Relationship Length–frequency Distributions Modal Analysis |
title_short |
Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae) |
title_full |
Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae) |
title_fullStr |
Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae) |
title_full_unstemmed |
Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae) |
title_sort |
Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae) |
author |
Azevedo, José M. N. |
author_facet |
Azevedo, José M. N. Homem, Nídia |
author_role |
author |
author2 |
Homem, Nídia |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade dos Açores |
dc.contributor.author.fl_str_mv |
Azevedo, José M. N. Homem, Nídia |
dc.subject.por.fl_str_mv |
Blenniidae Parablennius ruber Fish Biology Length–weight Relationship Length–frequency Distributions Modal Analysis |
topic |
Blenniidae Parablennius ruber Fish Biology Length–weight Relationship Length–frequency Distributions Modal Analysis |
description |
Basic biological information for a sublittoral population of the red blenny Parablennius ruber is presented based on a two-year study involving 2350 specimens. The length-weight relationship was given by TW = 0.011 x TL2.963 (where TW = total weight, in g; TL = total length, in cm). Age at length data was inferred by modal analysis of the monthly length-frequency distributions. The parameters of the fitted von Bertalanffy growth equation (with seasonal component, birth date on February, 15th) were L∞ = 13.22 cm; K = 0.62 year-1; to = -0.39 year; C = 0.68; WP = 0.97. Macroscopic examination of the gonads, and analysis of the monthly values of the gonadosomatic index, indicated that reproduction occurs in winter, with a maximum in February and March, when water temperatures are low. Individuals become sexually mature around 6 cm TL, a size that can be reached in less than one year. Stomach contents suggest an omnivorous diet mainly composed of scrapped filamentous algae and associated invertebrates. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002 2002-01-01T00:00:00Z 2009-09-29T14:09:34Z |
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/10400.3/337 |
url |
http://hdl.handle.net/10400.3/337 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Azevedo, J. M. N. & Homem, N. (2002). Age and growth, reproduction and diet of the red blenny Parablennius ruber (Blenniidae). Cybium 26, 129–133 2101-0315 |
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.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 |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799130677782773760 |