Mobility of organochlorines in muscle of sardine (Sardina pilchardus) during spawning in the Portuguese coas

Mobility of organochlorines in muscle of sardine (Sardina pilchardus) during spawning in the Portuguese coas

 Concentrations of polychlorinated biphenyls (PCBs), p,p'-dichlorodiphenyltrichloroethane (DDT) and metabolites, and dieldrin were determined in muscle tissues of female and male sardines (Sardina pilchardus) obtained between February 2000 and January 2001 from purse-seine vessels oper...

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Autores principales: Amado, J, Antunes, P, Gil, O, Vale, C
פורמט: info:eu-repo/semantics/article
שפה:eng
יצא לאור: Iniversidad Autónoma de Baja California 2006
נושאים:
Sardina pilchardus
PCBs
DDTs
dieldrin
sexual cycle
dieldrina
ciclo reproductivo
גישה מקוונת:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1095
תגים: הוספת תג
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id repositorioinstitucional-20.500.12930-7417
record_format dspace
spelling repositorioinstitucional-20.500.12930-74172023-05-09T14:30:57Z Mobility of organochlorines in muscle of sardine (Sardina pilchardus) during spawning in the Portuguese coas Movilidad de organoclorados en músculo de sardina (Sardina pilchardus) durante su desove en la costa portuguesa Amado, J Antunes, P Gil, O Vale, C Sardina pilchardus PCBs DDTs dieldrin sexual cycle Sardina pilchardus PCBs DDTs dieldrina ciclo reproductivo  Concentrations of polychlorinated biphenyls (PCBs), p,p'-dichlorodiphenyltrichloroethane (DDT) and metabolites, and dieldrin were determined in muscle tissues of female and male sardines (Sardina pilchardus) obtained between February 2000 and January 2001 from purse-seine vessels operating off the coast of Peniche, Portugal. The concentration ranges (ng g–1 dw) in females and males were, respectively, 5.9–29 and 16–38 for PCBs, 1.6–8.5 and 3.2–11 for DDTs, and 0.09–2.4 and 0.18–2.9 for dieldrin. The annual fluctuation of organochlorines in muscle was attributed to the reproductive cycle of S. pilchardus and consequent variation of lipid content. Maximum organochlorine concentrations in muscle were found when the gonadosomatic index (GSI) increased during the final stages of gonad development and the beginning of spawning activity (November). During the final spawning period (February to May), the GSI decreased and concentrations were lower. This study suggests that elimination of PCBs in muscle is faster in females than in males because of transference to the gonad and the excretion of eggs. Se determinaron concentraciones de bifenilos policlorados (PCBs), p,p'-diclorodifeniltricloroetano (DDT) y sus metabolitos, y dieldrina en músculo de sardinas (Sardina pilchardus) hembras y machos obtenidas en ocho épocas, de febrero de 2000 a enero de 2001, por embarcaciones de cerco que faenan en Peniche, Portugal. Las gamas de concentraciones (ng g–1 ps) en las hembras y en los machos fueron respectivamente: 5.9–29 y 16–38 para PCBs, 1.6–8.5 y 3.2–11 para DDTs, 0.09–2.4 y 0.18–2.9 para dieldrina. La fluctuación anual de organoclorados en el músculo se atribuyó al ciclo reproductivo de las sardinas y, consecuentemente, a la variación de contenido lipídico. Se verificó el mayor aumento del índice gonadosomático (GSI), en fase final del desarrollo de las gónadas y el inicio del desove (noviembre), cuando se encontraron las mayores concentraciones de organoclorados en el músculo. En la fase final del desove (de febrero a mayo), los GSI disminuyeron y las concentraciones de los organoclorados fueron menores. Este trabajo sugiere que la eliminación de los PCBs en el músculo es más rápida en las hembras que en los machos, eventualmente debido a la transferencia hacia las gónadas y eliminación de los huevos. 2006-08-21 2021-06-03T03:55:15Z 2021-06-03T03:55:15Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1095 10.7773/cm.v32i22.1095 https://hdl.handle.net/20.500.12930/7417 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1095/1918 application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 32 No. 2B (2006); 369-377 Ciencias Marinas; Vol. 32 Núm. 2B (2006); 369-377 2395-9053 0185-3880
institution Repositorio Institucional
collection DSpace
language eng
topic Sardina pilchardus
PCBs
DDTs
dieldrin
sexual cycle
Sardina pilchardus
PCBs
DDTs
dieldrina
ciclo reproductivo
spellingShingle Sardina pilchardus
PCBs
DDTs
dieldrin
sexual cycle
Sardina pilchardus
PCBs
DDTs
dieldrina
ciclo reproductivo
Amado, J
Antunes, P
Gil, O
Vale, C
Mobility of organochlorines in muscle of sardine (Sardina pilchardus) during spawning in the Portuguese coas
description  Concentrations of polychlorinated biphenyls (PCBs), p,p'-dichlorodiphenyltrichloroethane (DDT) and metabolites, and dieldrin were determined in muscle tissues of female and male sardines (Sardina pilchardus) obtained between February 2000 and January 2001 from purse-seine vessels operating off the coast of Peniche, Portugal. The concentration ranges (ng g–1 dw) in females and males were, respectively, 5.9–29 and 16–38 for PCBs, 1.6–8.5 and 3.2–11 for DDTs, and 0.09–2.4 and 0.18–2.9 for dieldrin. The annual fluctuation of organochlorines in muscle was attributed to the reproductive cycle of S. pilchardus and consequent variation of lipid content. Maximum organochlorine concentrations in muscle were found when the gonadosomatic index (GSI) increased during the final stages of gonad development and the beginning of spawning activity (November). During the final spawning period (February to May), the GSI decreased and concentrations were lower. This study suggests that elimination of PCBs in muscle is faster in females than in males because of transference to the gonad and the excretion of eggs.
format info:eu-repo/semantics/article
author Amado, J
Antunes, P
Gil, O
Vale, C
author_facet Amado, J
Antunes, P
Gil, O
Vale, C
author_sort Amado, J
title Mobility of organochlorines in muscle of sardine (Sardina pilchardus) during spawning in the Portuguese coas
title_short Mobility of organochlorines in muscle of sardine (Sardina pilchardus) during spawning in the Portuguese coas
title_full Mobility of organochlorines in muscle of sardine (Sardina pilchardus) during spawning in the Portuguese coas
title_fullStr Mobility of organochlorines in muscle of sardine (Sardina pilchardus) during spawning in the Portuguese coas
title_full_unstemmed Mobility of organochlorines in muscle of sardine (Sardina pilchardus) during spawning in the Portuguese coas
title_sort mobility of organochlorines in muscle of sardine (sardina pilchardus) during spawning in the portuguese coas
publisher Iniversidad Autónoma de Baja California
publishDate 2006
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1095
_version_ 1792610213493211136

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