How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems?
Autor(a) principal: | |
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Data de Publicação: | 2009 |
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/10400.1/2403 |
Resumo: | Recruitment predictions for fish are often difficult to make due to the intrinsic variability of species and the incomplete sampling procedures. The aim of this study was to analyse the fish larval catches (abundance, diversity, size and damage) from a standard 500 mm ichthyoplankton net and different light traps (structure, size and light intensity) in temperate coastal turbid waters. Catches from different gear were always made on the same date or season, same location and same tidal phase. Results showed that light traps captured significantly bigger larvae (almost post-flexion) than those captured with the ichthyoplankton net, nevertheless the diversity was lower. Clupeidae species were the most represented taxon; nevertheless, the traps also caught Atherinidae, Gobiidae, Sparidae, Soleidae and Labridae. The light traps were less stressful devices, allowing the capture of live and active larvae. This showed other possible uses for the light trap, e.g. larval behavioural and physiological studies. Light traps constitute a good complementary sampling option for post-flexion larvae, being aware of species selectivity associated with their use. |
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How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems?Larval fish sampling techniquesDesign of light trapEstuaryDiversityFish larval damageSardina-PilchardusRecruitment predictions for fish are often difficult to make due to the intrinsic variability of species and the incomplete sampling procedures. The aim of this study was to analyse the fish larval catches (abundance, diversity, size and damage) from a standard 500 mm ichthyoplankton net and different light traps (structure, size and light intensity) in temperate coastal turbid waters. Catches from different gear were always made on the same date or season, same location and same tidal phase. Results showed that light traps captured significantly bigger larvae (almost post-flexion) than those captured with the ichthyoplankton net, nevertheless the diversity was lower. Clupeidae species were the most represented taxon; nevertheless, the traps also caught Atherinidae, Gobiidae, Sparidae, Soleidae and Labridae. The light traps were less stressful devices, allowing the capture of live and active larvae. This showed other possible uses for the light trap, e.g. larval behavioural and physiological studies. Light traps constitute a good complementary sampling option for post-flexion larvae, being aware of species selectivity associated with their use.SapientiaChícharo, LuísFaria, Ana Margarida da SilvaMorais, P.Araújo Amaral, Ana MargaridaMendes, CarlosChicharo, Maria Alexandra Teodosio2013-02-22T14:38:08Z20092013-02-19T14:48:49Z2009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/2403engChicharo, L. M. Z.; Faria, A.; Morais, P.; Amaral, A.; Mendes, C.; Chicharo, M. A. How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems?, Cahiers De Biologie Marine, 50, 4, 311-318, 2009.0007-9723AUT: MCH00377;info: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:RCAAP2023-07-24T10:13:33Zoai:sapientia.ualg.pt:10400.1/2403Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:56:19.067828Repositório 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 |
How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems? |
title |
How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems? |
spellingShingle |
How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems? Chícharo, Luís Larval fish sampling techniques Design of light trap Estuary Diversity Fish larval damage Sardina-Pilchardus |
title_short |
How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems? |
title_full |
How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems? |
title_fullStr |
How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems? |
title_full_unstemmed |
How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems? |
title_sort |
How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems? |
author |
Chícharo, Luís |
author_facet |
Chícharo, Luís Faria, Ana Margarida da Silva Morais, P. Araújo Amaral, Ana Margarida Mendes, Carlos Chicharo, Maria Alexandra Teodosio |
author_role |
author |
author2 |
Faria, Ana Margarida da Silva Morais, P. Araújo Amaral, Ana Margarida Mendes, Carlos Chicharo, Maria Alexandra Teodosio |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Chícharo, Luís Faria, Ana Margarida da Silva Morais, P. Araújo Amaral, Ana Margarida Mendes, Carlos Chicharo, Maria Alexandra Teodosio |
dc.subject.por.fl_str_mv |
Larval fish sampling techniques Design of light trap Estuary Diversity Fish larval damage Sardina-Pilchardus |
topic |
Larval fish sampling techniques Design of light trap Estuary Diversity Fish larval damage Sardina-Pilchardus |
description |
Recruitment predictions for fish are often difficult to make due to the intrinsic variability of species and the incomplete sampling procedures. The aim of this study was to analyse the fish larval catches (abundance, diversity, size and damage) from a standard 500 mm ichthyoplankton net and different light traps (structure, size and light intensity) in temperate coastal turbid waters. Catches from different gear were always made on the same date or season, same location and same tidal phase. Results showed that light traps captured significantly bigger larvae (almost post-flexion) than those captured with the ichthyoplankton net, nevertheless the diversity was lower. Clupeidae species were the most represented taxon; nevertheless, the traps also caught Atherinidae, Gobiidae, Sparidae, Soleidae and Labridae. The light traps were less stressful devices, allowing the capture of live and active larvae. This showed other possible uses for the light trap, e.g. larval behavioural and physiological studies. Light traps constitute a good complementary sampling option for post-flexion larvae, being aware of species selectivity associated with their use. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 2009-01-01T00:00:00Z 2013-02-22T14:38:08Z 2013-02-19T14:48:49Z |
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/10400.1/2403 |
url |
http://hdl.handle.net/10400.1/2403 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Chicharo, L. M. Z.; Faria, A.; Morais, P.; Amaral, A.; Mendes, C.; Chicharo, M. A. How to sample larval fish for taxonomical and ecophysiological studies in shallower temperate coastal ecosystems?, Cahiers De Biologie Marine, 50, 4, 311-318, 2009. 0007-9723 AUT: MCH00377; |
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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1799133169978441728 |