Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRRJ |
Texto Completo: | https://tede.ufrrj.br/jspui/handle/tede/199 |
Resumo: | The reproductive biology of the mullets Mugil curema and Mugil liza was determined mainly by observing gonad development, size at maturation and fecundity. The objective of this study was to learn about the strategies developed by these species to maintain their exploited populations in an increasingly altered system. It was hypothesized that there are differences in reproductive strategies, such as in reproductive timing, in order to avoid larval competition allowing highest survivorship rates of offspring in this environment. Fishes were collected from commercial catches from a tropical Bay in southeastern Brazil during July 2006 to June 2007. Spawning time was determined by observing macro and microscopic gonadal stages and the gonadosomatic index (GSI). Females were larger than males; the sex ratio was female-biased for sizes large than 275 mm and 500 mm total length (TL) for M. curema and M. liza, respectively. The populations reached reproductive activity (L100) at 260 and 310 mm TL for males and females M. curema, respectively and 550 mm and 570 mm TL for males and females M. liza, respectively. Mugil curema has a wide spawning season from August to January. Fish with mature gonads were present between August and January. The GSI had the highest values in September and October, prior to the rainy season. Mugil liza spawning season is from May to August and fish with mature gonads also were present at this period and the GSI picked in June. The hepatosomatic index (HSI) was significantly related to the GSI, indicating that vitellogenesis mobilizes hepatic energy during the spawning season. Mean fecundity was found to be 415,000 (? 32 x 103) and 3,080,000 (? 104 x 103) oocytes for M. curema e M. liza, respectively. The presence of only two phases of oocyte development in ripe ovaries a reserve stock and a clutch of post-vitellogenic oocytes indicated that ovarian development is group synchronic, and these species are total spawner. The hypothesis was confirmed, therefore, there are differences in the reproductive strategies and tactics of these species such as segregation in reproductive timing, fecundity and oocytes size, tatics that allow higher rates of prole survival and avoid larval competition. |
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Ara?jo, Francisco Gerson049.832.332-20http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783568A4&dataRevisao=null099.191.107-52http://lattes.cnpq.br/1773360233553480Albieri, Rafael Jardim2016-04-26T19:00:00Z2009-05-142009-02-04ALBIERI, Rafael Jardim. Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil. 2009. 75 f. Disserta??o (Mestrado em Entomologia) - Instituto de Ci?ncias Biol?gicas e da Sa?de, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2009.https://tede.ufrrj.br/jspui/handle/tede/199The reproductive biology of the mullets Mugil curema and Mugil liza was determined mainly by observing gonad development, size at maturation and fecundity. The objective of this study was to learn about the strategies developed by these species to maintain their exploited populations in an increasingly altered system. It was hypothesized that there are differences in reproductive strategies, such as in reproductive timing, in order to avoid larval competition allowing highest survivorship rates of offspring in this environment. Fishes were collected from commercial catches from a tropical Bay in southeastern Brazil during July 2006 to June 2007. Spawning time was determined by observing macro and microscopic gonadal stages and the gonadosomatic index (GSI). Females were larger than males; the sex ratio was female-biased for sizes large than 275 mm and 500 mm total length (TL) for M. curema and M. liza, respectively. The populations reached reproductive activity (L100) at 260 and 310 mm TL for males and females M. curema, respectively and 550 mm and 570 mm TL for males and females M. liza, respectively. Mugil curema has a wide spawning season from August to January. Fish with mature gonads were present between August and January. The GSI had the highest values in September and October, prior to the rainy season. Mugil liza spawning season is from May to August and fish with mature gonads also were present at this period and the GSI picked in June. The hepatosomatic index (HSI) was significantly related to the GSI, indicating that vitellogenesis mobilizes hepatic energy during the spawning season. Mean fecundity was found to be 415,000 (? 32 x 103) and 3,080,000 (? 104 x 103) oocytes for M. curema e M. liza, respectively. The presence of only two phases of oocyte development in ripe ovaries a reserve stock and a clutch of post-vitellogenic oocytes indicated that ovarian development is group synchronic, and these species are total spawner. The hypothesis was confirmed, therefore, there are differences in the reproductive strategies and tactics of these species such as segregation in reproductive timing, fecundity and oocytes size, tatics that allow higher rates of prole survival and avoid larval competition.A biologia reprodutiva do parati (Mugil curema) e da tainha (Mugil liza) foi determinada principalmente pela observa??o do desenvolvimento gonadal, tamanho de matura??o e fecundidade. Objetivou-se conhecer as estrat?gias reprodutivas desenvolvidas por estas esp?cies que mant?m suas popula??es num sistema onde existe uma intensa atividade pesqueira, bem como crescentes altera??es ambientais. Hipotetizou-se que estas duas esp?cies proximamente relacionadas, utilizam diferentes estrat?gias reprodutivas para evitar competi??o, principalmente da prole. Os peixes foram coletados em capturas comerciais em uma ba?a no sudeste do Brasil durante Julho de 2006 e Junho de 2007. O ciclo gonadal foi determinado pelas observa??es macro e microsc?picas das g?nadas e pelo ?ndice gonadossom?tico (GSI). As f?meas atingiram maiores tamanhos do que os machos e apresentaram maior propor??o sexual para tamanhos superiores a 275 mm e 500 mm de comprimento total (TL) para M. curema e M. liza, respectivamente. As popula??es alcan?aram a atividade reprodutiva (L100) com 260 e 310 mm TL para machos e f?meas de M. curema, respectivamente, e 550 mm e 570 mm TL para machos e f?meas de M. liza, respectivamente. Mugil curema apresentou um longo per?odo reprodutivo de Agosto a Janeiro enquanto M. liza reproduz em menor per?odo, de Maio a Agosto. Mugil curema apresentou maiores GSI em Setembro/Outubro, antes da esta??o de chuvas. Mugil liza apresentou o pico de GSI em Junho. O ?ndice hepatossom?tico (HSI) foi significativamente relacionado com o GSI para as duas esp?cies, indicando que a vitelog?nese mobiliza energia hep?tica durante a reprodu??o. A fecundidade m?dia foi de 415.000 (? 32 x 103) e 3.080.000 (? 104 x 103) ov?citos para M. curema e M. liza, respectivamente. A presen?a de apenas duas fases de desenvolvimento ovocit?rio em ov?rios maduros ov?citos de estoques de reserva e uma popula??o clutch de ov?citos p?s-vitelog?nicos indicam que o desenvolvimento ovocit?rio ? sincr?nico em dois grupos com desova total, tanto para M. curema quanto para M. liza. Foi confirmada a hip?tese de que existem diferen?as nas estrat?gias e t?ticas reprodutivas destas duas esp?cies, como separa??o no per?odo reprodutivo, diferentes fecundidades e tamanhos de ov?citos, a fim de evitar a competi??o larval e elevar as taxas de sobreviv?ncia da prole.Made available in DSpace on 2016-04-26T19:00:00Z (GMT). No. of bitstreams: 1 2009 - Rafael Jardim Albieri.pdf: 3518714 bytes, checksum: 38c6e46758c5b2d6d4941a9fcc724689 (MD5) Previous issue date: 2009-02-04Coordena??o de Aperfei?oamento de Pessoal de N?vel Superiorapplication/pdfhttps://tede.ufrrj.br/retrieve/3711/2009%20-%20Rafael%20Jardim%20Albieri.pdf.jpghttps://tede.ufrrj.br/retrieve/17868/2009%20-%20Rafael%20Jardim%20Albieri.pdf.jpghttps://tede.ufrrj.br/retrieve/24194/2009%20-%20Rafael%20Jardim%20Albieri.pdf.jpghttps://tede.ufrrj.br/retrieve/30595/2009%20-%20Rafael%20Jardim%20Albieri.pdf.jpghttps://tede.ufrrj.br/retrieve/36973/2009%20-%20Rafael%20Jardim%20Albieri.pdf.jpghttps://tede.ufrrj.br/retrieve/43317/2009%20-%20Rafael%20Jardim%20Albieri.pdf.jpghttps://tede.ufrrj.br/retrieve/49699/2009%20-%20Rafael%20Jardim%20Albieri.pdf.jpghttps://tede.ufrrj.br/retrieve/56156/2009%20-%20Rafael%20Jardim%20Albieri.pdf.jpgporUniversidade Federal Rural do Rio de JaneiroPrograma de P?s-Gradua??o em Biologia AnimalUFRRJBrasilInstituto de Ci?ncias Biol?gicas e da Sa?deciclo de vidaconserva??o de estoques pesqueirosdesovaestrat?gia reprodutivafecundidadegametog?nese?ndices som?ticosFish stocks conservationfecunditygametogenesislife cyclereproductive strategysomatic indexesspawningZoologiaBiologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRRJinstname:Universidade Federal Rural do Rio de Janeiro (UFRRJ)instacron:UFRRJTEXT2009 - Rafael Jardim Albieri.pdf.txt2009 - Rafael Jardim Albieri.pdf.txttext/plain172764http://localhost:8080/tede/bitstream/tede/199/16/2009+-+Rafael+Jardim+Albieri.pdf.txt092bc14f840c725a78819cce38dcf060MD516ORIGINAL2009 - Rafael Jardim Albieri.pdf2009 - Rafael Jardim Albieri.pdfapplication/pdf3520269http://localhost:8080/tede/bitstream/tede/199/3/2009+-+Rafael+Jardim+Albieri.pdf9da2e5f9464befc94cf59e88ff61196cMD53THUMBNAIL2009 - Rafael Jardim Albieri.pdf.jpg2009 - Rafael Jardim Albieri.pdf.jpgimage/jpeg3626http://localhost:8080/tede/bitstream/tede/199/17/2009+-+Rafael+Jardim+Albieri.pdf.jpg1c1488ebb6acf6080e288b955607bbb5MD517tede/1992022-06-21 08:10:24.802oai:localhost:tede/199Biblioteca Digital de Teses e Dissertaçõeshttps://tede.ufrrj.br/PUBhttps://tede.ufrrj.br/oai/requestbibliot@ufrrj.br||bibliot@ufrrj.bropendoar:2022-06-21T11:10:24Biblioteca Digital de Teses e Dissertações da UFRRJ - Universidade Federal Rural do Rio de Janeiro (UFRRJ)false |
dc.title.por.fl_str_mv |
Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil |
title |
Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil |
spellingShingle |
Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil Albieri, Rafael Jardim ciclo de vida conserva??o de estoques pesqueiros desova estrat?gia reprodutiva fecundidade gametog?nese ?ndices som?ticos Fish stocks conservation fecundity gametogenesis life cycle reproductive strategy somatic indexes spawning Zoologia |
title_short |
Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil |
title_full |
Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil |
title_fullStr |
Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil |
title_full_unstemmed |
Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil |
title_sort |
Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil |
author |
Albieri, Rafael Jardim |
author_facet |
Albieri, Rafael Jardim |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Ara?jo, Francisco Gerson |
dc.contributor.advisor1ID.fl_str_mv |
049.832.332-20 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783568A4&dataRevisao=null |
dc.contributor.authorID.fl_str_mv |
099.191.107-52 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1773360233553480 |
dc.contributor.author.fl_str_mv |
Albieri, Rafael Jardim |
contributor_str_mv |
Ara?jo, Francisco Gerson |
dc.subject.por.fl_str_mv |
ciclo de vida conserva??o de estoques pesqueiros desova estrat?gia reprodutiva fecundidade gametog?nese ?ndices som?ticos |
topic |
ciclo de vida conserva??o de estoques pesqueiros desova estrat?gia reprodutiva fecundidade gametog?nese ?ndices som?ticos Fish stocks conservation fecundity gametogenesis life cycle reproductive strategy somatic indexes spawning Zoologia |
dc.subject.eng.fl_str_mv |
Fish stocks conservation fecundity gametogenesis life cycle reproductive strategy somatic indexes spawning |
dc.subject.cnpq.fl_str_mv |
Zoologia |
description |
The reproductive biology of the mullets Mugil curema and Mugil liza was determined mainly by observing gonad development, size at maturation and fecundity. The objective of this study was to learn about the strategies developed by these species to maintain their exploited populations in an increasingly altered system. It was hypothesized that there are differences in reproductive strategies, such as in reproductive timing, in order to avoid larval competition allowing highest survivorship rates of offspring in this environment. Fishes were collected from commercial catches from a tropical Bay in southeastern Brazil during July 2006 to June 2007. Spawning time was determined by observing macro and microscopic gonadal stages and the gonadosomatic index (GSI). Females were larger than males; the sex ratio was female-biased for sizes large than 275 mm and 500 mm total length (TL) for M. curema and M. liza, respectively. The populations reached reproductive activity (L100) at 260 and 310 mm TL for males and females M. curema, respectively and 550 mm and 570 mm TL for males and females M. liza, respectively. Mugil curema has a wide spawning season from August to January. Fish with mature gonads were present between August and January. The GSI had the highest values in September and October, prior to the rainy season. Mugil liza spawning season is from May to August and fish with mature gonads also were present at this period and the GSI picked in June. The hepatosomatic index (HSI) was significantly related to the GSI, indicating that vitellogenesis mobilizes hepatic energy during the spawning season. Mean fecundity was found to be 415,000 (? 32 x 103) and 3,080,000 (? 104 x 103) oocytes for M. curema e M. liza, respectively. The presence of only two phases of oocyte development in ripe ovaries a reserve stock and a clutch of post-vitellogenic oocytes indicated that ovarian development is group synchronic, and these species are total spawner. The hypothesis was confirmed, therefore, there are differences in the reproductive strategies and tactics of these species such as segregation in reproductive timing, fecundity and oocytes size, tatics that allow higher rates of prole survival and avoid larval competition. |
publishDate |
2009 |
dc.date.available.fl_str_mv |
2009-05-14 |
dc.date.issued.fl_str_mv |
2009-02-04 |
dc.date.accessioned.fl_str_mv |
2016-04-26T19:00:00Z |
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info:eu-repo/semantics/publishedVersion |
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masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
ALBIERI, Rafael Jardim. Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil. 2009. 75 f. Disserta??o (Mestrado em Entomologia) - Instituto de Ci?ncias Biol?gicas e da Sa?de, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2009. |
dc.identifier.uri.fl_str_mv |
https://tede.ufrrj.br/jspui/handle/tede/199 |
identifier_str_mv |
ALBIERI, Rafael Jardim. Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil. 2009. 75 f. Disserta??o (Mestrado em Entomologia) - Instituto de Ci?ncias Biol?gicas e da Sa?de, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2009. |
url |
https://tede.ufrrj.br/jspui/handle/tede/199 |
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por |
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Universidade Federal Rural do Rio de Janeiro |
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Programa de P?s-Gradua??o em Biologia Animal |
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UFRRJ |
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Brasil |
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Instituto de Ci?ncias Biol?gicas e da Sa?de |
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Universidade Federal Rural do Rio de Janeiro |
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