Short-term size-specific distribution and movement patterns of juvenile flatfish in a Pacific estuary derived through length-frequency and mark-recapture data

Evaluating small-scale distribution and movement patterns of juvenile fishes within estuarine systems is necessary for identifying favorable nursery habitats and adequately interpreting local instantaneous growth and mortality estimates. Finescale, size-specific catch per unit effort (CPUE, catch pe...

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Detalles Bibliográficos
Autores: SZ Herzka, R Griffiths, FJ Fodrie, ID McCarthy
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:México
Institución:Centro de Investigación Científica y de Educación Superior de Ensenada
Repositorio:Redalyc-CICESE
OAI Identifier:oai:redalyc.org:48013192004
Acceso en línea:https://www.redalyc.org/articulo.oa?id=48013192004
Access Level:acceso abierto
Palabra clave:Ciencias de la Tierra
flatfish
movement
nursery habitat
Estuarine emigration
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spelling Short-term size-specific distribution and movement patterns of juvenile flatfish in a Pacific estuary derived through length-frequency and mark-recapture dataSZ HerzkaR GriffithsFJ FodrieID McCarthyCiencias de la Tierraflatfishmovementnursery habitatEstuarine emigrationEvaluating small-scale distribution and movement patterns of juvenile fishes within estuarine systems is necessary for identifying favorable nursery habitats and adequately interpreting local instantaneous growth and mortality estimates. Finescale, size-specific catch per unit effort (CPUE, catch per 500 m tow) and movement of juvenile flatfish were studied in Punta Banda Estuary, Baja California, Mexico, during the summer of 2004. After dividing the estuary into five contiguous sections, habitat utilization and movement were analyzed using two complimentary approaches. We intensively surveyed the estuary throughout the summer to document the size-specific distribution of flatfishes. California halibut and diamond turbot were captured throughout the estuary on all sampling dates, indicating that the entire system serves as habitat for juveniles. Multiple regression analysis indicated that the CPUE of California halibut was significantly and negatively related to temperature and depth, although the model exhibited low explanatory power. In contrast, the CPUE of diamond turbot was only significantly and negatively related to depth. CPUE was not related to salinity for either species. Analyses of site- and time-specific lengthfrequency distributions indicated movement by all flatfishes on the time scale of weeks, which is likely due to the estuarine emigration of fish >140 mm standard length. In addition, an estuary-wide mark-recapture study was performed. Visible elastomer implants were used to tag 697 California halibut, 442 diamond turbot, and 128 spotted turbot. Based on sectionspecific CPUE and the area of the estuary, we tagged 3¿6% of the local population of each species in a given month. Four Californian halibut and two diamond turbot were recaptured within hundreds of meters of where they were released. Hence, we observed residency and movement at the same time. This study indicates that short-term movement and its underlying causes should be taken into account when assessing patterns of juvenile habitat utilization.Universidad Autónoma de Baja California2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdf0185-3880https://www.redalyc.org/articulo.oa?id=48013192004Ciencias Marinas (México) Num.1 Vol.35reponame:Redalyc-CICESEinstname:Centro de Investigación Científica y de Educación Superior de Ensenadainstacron:CICESEenhttp://www.redalyc.org/revista.oa?id=480Ciencias Marinasinfo:eu-repo/semantics/openAccessoai:redalyc.org:480131920042024-08-23T17:34:16Z
dc.title.none.fl_str_mv Short-term size-specific distribution and movement patterns of juvenile flatfish in a Pacific estuary derived through length-frequency and mark-recapture data
title Short-term size-specific distribution and movement patterns of juvenile flatfish in a Pacific estuary derived through length-frequency and mark-recapture data
spellingShingle Short-term size-specific distribution and movement patterns of juvenile flatfish in a Pacific estuary derived through length-frequency and mark-recapture data
SZ Herzka
Ciencias de la Tierra
flatfish
movement
nursery habitat
Estuarine emigration
title_short Short-term size-specific distribution and movement patterns of juvenile flatfish in a Pacific estuary derived through length-frequency and mark-recapture data
title_full Short-term size-specific distribution and movement patterns of juvenile flatfish in a Pacific estuary derived through length-frequency and mark-recapture data
title_fullStr Short-term size-specific distribution and movement patterns of juvenile flatfish in a Pacific estuary derived through length-frequency and mark-recapture data
title_full_unstemmed Short-term size-specific distribution and movement patterns of juvenile flatfish in a Pacific estuary derived through length-frequency and mark-recapture data
title_sort Short-term size-specific distribution and movement patterns of juvenile flatfish in a Pacific estuary derived through length-frequency and mark-recapture data
dc.creator.none.fl_str_mv SZ Herzka
R Griffiths
FJ Fodrie
ID McCarthy
author SZ Herzka
author_facet SZ Herzka
R Griffiths
FJ Fodrie
ID McCarthy
author_role author
author2 R Griffiths
FJ Fodrie
ID McCarthy
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias de la Tierra
flatfish
movement
nursery habitat
Estuarine emigration
topic Ciencias de la Tierra
flatfish
movement
nursery habitat
Estuarine emigration
description Evaluating small-scale distribution and movement patterns of juvenile fishes within estuarine systems is necessary for identifying favorable nursery habitats and adequately interpreting local instantaneous growth and mortality estimates. Finescale, size-specific catch per unit effort (CPUE, catch per 500 m tow) and movement of juvenile flatfish were studied in Punta Banda Estuary, Baja California, Mexico, during the summer of 2004. After dividing the estuary into five contiguous sections, habitat utilization and movement were analyzed using two complimentary approaches. We intensively surveyed the estuary throughout the summer to document the size-specific distribution of flatfishes. California halibut and diamond turbot were captured throughout the estuary on all sampling dates, indicating that the entire system serves as habitat for juveniles. Multiple regression analysis indicated that the CPUE of California halibut was significantly and negatively related to temperature and depth, although the model exhibited low explanatory power. In contrast, the CPUE of diamond turbot was only significantly and negatively related to depth. CPUE was not related to salinity for either species. Analyses of site- and time-specific lengthfrequency distributions indicated movement by all flatfishes on the time scale of weeks, which is likely due to the estuarine emigration of fish >140 mm standard length. In addition, an estuary-wide mark-recapture study was performed. Visible elastomer implants were used to tag 697 California halibut, 442 diamond turbot, and 128 spotted turbot. Based on sectionspecific CPUE and the area of the estuary, we tagged 3¿6% of the local population of each species in a given month. Four Californian halibut and two diamond turbot were recaptured within hundreds of meters of where they were released. Hence, we observed residency and movement at the same time. This study indicates that short-term movement and its underlying causes should be taken into account when assessing patterns of juvenile habitat utilization.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0185-3880
https://www.redalyc.org/articulo.oa?id=48013192004
identifier_str_mv 0185-3880
url https://www.redalyc.org/articulo.oa?id=48013192004
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv http://www.redalyc.org/revista.oa?id=480
dc.rights.none.fl_str_mv Ciencias Marinas
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Ciencias Marinas
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Autónoma de Baja California
publisher.none.fl_str_mv Universidad Autónoma de Baja California
dc.source.none.fl_str_mv Ciencias Marinas (México) Num.1 Vol.35
reponame:Redalyc-CICESE
instname:Centro de Investigación Científica y de Educación Superior de Ensenada
instacron:CICESE
instname_str Centro de Investigación Científica y de Educación Superior de Ensenada
instacron_str CICESE
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reponame_str Redalyc-CICESE
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