Long-term (2002-2011) changes on Cetengraulis edentulus (Clupeiformes: Engraulidae) fisheries in Guanabara Bay, Brazil
C. edentulus accounts for the major fishery resource in Guanabara Bay, but there are only few studies about its captures.This study analyzed the long term changes on C. edentulus catches in Guanabara Bay, focusing especially on temporal variation on capture effort, boat storage temperature, and fish...
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| Format: | Online |
| Language: | spa |
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Universidad de Costa Rica
2014
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| Online Access: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/12408 |
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RBT12408 |
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ojs |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
spa |
| format |
Online |
| author |
Sampaio Franco, Ana Clara Shimada Brotto, Daniel Wai Zee, David Man Neves dos Santos, Luciano |
| spellingShingle |
Sampaio Franco, Ana Clara Shimada Brotto, Daniel Wai Zee, David Man Neves dos Santos, Luciano Long-term (2002-2011) changes on Cetengraulis edentulus (Clupeiformes: Engraulidae) fisheries in Guanabara Bay, Brazil |
| author_facet |
Sampaio Franco, Ana Clara Shimada Brotto, Daniel Wai Zee, David Man Neves dos Santos, Luciano |
| author_sort |
Sampaio Franco, Ana Clara |
| description |
C. edentulus accounts for the major fishery resource in Guanabara Bay, but there are only few studies about its captures.This study analyzed the long term changes on C. edentulus catches in Guanabara Bay, focusing especially on temporal variation on capture effort, boat storage temperature, and fish price and size.We assessed the 2002-2011 database of fish landings at the pier of Rubi S.A., with records of year, month, total catch (kg), number of fish per kg, boat storage temperature (oC), and price per kg to boat owner (US$). Those variables differed among years and months (ANOVA; p<0.01) with strong yearXmonth interactions for all, probably related to C. edentulus reproductive and recruitment seasons and environmental conditions of Guanabara Bay. Generalized additive models revealed that high C. edentulus catches were associated withfew boat loadings of large-sized fishes, which were conserved in higher boat storage temperatures and attained high market prices. Our long-term study stressed that variations on C. edentulus fishery were related to changes on boat storage temperature, fish size, price paid per kg, and frequency of landings, and that these descriptors are correlated with C. edentulus ecological traits and high phytoplankton availability. Nevertheless, further studies should be performed to address whether less evident factors, such as the fluctuation of concurrent Sardinella brasiliensis stock, would explain the temporal dynamics of C. edentulus stocks in Guanabara Bay. |
| title |
Long-term (2002-2011) changes on Cetengraulis edentulus (Clupeiformes: Engraulidae) fisheries in Guanabara Bay, Brazil |
| title_short |
Long-term (2002-2011) changes on Cetengraulis edentulus (Clupeiformes: Engraulidae) fisheries in Guanabara Bay, Brazil |
| title_full |
Long-term (2002-2011) changes on Cetengraulis edentulus (Clupeiformes: Engraulidae) fisheries in Guanabara Bay, Brazil |
| title_fullStr |
Long-term (2002-2011) changes on Cetengraulis edentulus (Clupeiformes: Engraulidae) fisheries in Guanabara Bay, Brazil |
| title_full_unstemmed |
Long-term (2002-2011) changes on Cetengraulis edentulus (Clupeiformes: Engraulidae) fisheries in Guanabara Bay, Brazil |
| title_sort |
long-term (2002-2011) changes on cetengraulis edentulus (clupeiformes: engraulidae) fisheries in guanabara bay, brazil |
| title_alt |
Long-term (2002-2011) changes on Cetengraulis edentulus (Clupeiformes: Engraulidae) fisheries in Guanabara Bay, Brazil |
| publisher |
Universidad de Costa Rica |
| publishDate |
2014 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/12408 |
| work_keys_str_mv |
AT sampaiofrancoanaclara longterm20022011changesoncetengraulisedentulusclupeiformesengraulidaefisheriesinguanabarabaybrazil AT shimadabrottodaniel longterm20022011changesoncetengraulisedentulusclupeiformesengraulidaefisheriesinguanabarabaybrazil AT waizeedavidman longterm20022011changesoncetengraulisedentulusclupeiformesengraulidaefisheriesinguanabarabaybrazil AT nevesdossantosluciano longterm20022011changesoncetengraulisedentulusclupeiformesengraulidaefisheriesinguanabarabaybrazil |
| _version_ |
1810114625066237952 |
| spelling |
RBT124082022-06-09T17:28:45Z Long-term (2002-2011) changes on Cetengraulis edentulus (Clupeiformes: Engraulidae) fisheries in Guanabara Bay, Brazil Long-term (2002-2011) changes on Cetengraulis edentulus (Clupeiformes: Engraulidae) fisheries in Guanabara Bay, Brazil Sampaio Franco, Ana Clara Shimada Brotto, Daniel Wai Zee, David Man Neves dos Santos, Luciano estuary long-term fisheries landings Cetengraulis edentulous estuary long-term fisheries landings Cetengraulis edentulous C. edentulus accounts for the major fishery resource in Guanabara Bay, but there are only few studies about its captures.This study analyzed the long term changes on C. edentulus catches in Guanabara Bay, focusing especially on temporal variation on capture effort, boat storage temperature, and fish price and size.We assessed the 2002-2011 database of fish landings at the pier of Rubi S.A., with records of year, month, total catch (kg), number of fish per kg, boat storage temperature (oC), and price per kg to boat owner (US$). Those variables differed among years and months (ANOVA; p<0.01) with strong yearXmonth interactions for all, probably related to C. edentulus reproductive and recruitment seasons and environmental conditions of Guanabara Bay. Generalized additive models revealed that high C. edentulus catches were associated withfew boat loadings of large-sized fishes, which were conserved in higher boat storage temperatures and attained high market prices. Our long-term study stressed that variations on C. edentulus fishery were related to changes on boat storage temperature, fish size, price paid per kg, and frequency of landings, and that these descriptors are correlated with C. edentulus ecological traits and high phytoplankton availability. Nevertheless, further studies should be performed to address whether less evident factors, such as the fluctuation of concurrent Sardinella brasiliensis stock, would explain the temporal dynamics of C. edentulus stocks in Guanabara Bay. C. edentulus accounts for the major fishery resource in Guanabara Bay, but there are only few studies about its captures.This study analyzed the long term changes on C. edentulus catches in Guanabara Bay, focusing especially on temporal variation on capture effort, boat storage temperature, and fish price and size.We assessed the 2002-2011 database of fish landings at the pier of Rubi S.A., with records of year, month, total catch (kg), number of fish per kg, boat storage temperature (oC), and price per kg to boat owner (US$). Those variables differed among years and months (ANOVA; p<0.01) with strong yearXmonth interactions for all, probably related to C. edentulus reproductive and recruitment seasons and environmental conditions of Guanabara Bay. Generalized additive models revealed that high C. edentulus catches were associated withfew boat loadings of large-sized fishes, which were conserved in higher boat storage temperatures and attained high market prices. Our long-term study stressed that variations on C. edentulus fishery were related to changes on boat storage temperature, fish size, price paid per kg, and frequency of landings, and that these descriptors are correlated with C. edentulus ecological traits and high phytoplankton availability. Nevertheless, further studies should be performed to address whether less evident factors, such as the fluctuation of concurrent Sardinella brasiliensis stock, would explain the temporal dynamics of C. edentulus stocks in Guanabara Bay. Universidad de Costa Rica 2014-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.ucr.ac.cr/index.php/rbt/article/view/12408 10.15517/rbt.v62i3.12408 Revista de Biología Tropical; Vol. 62 No. 3 (2014): Volume 62 – Regular number 3 – September 2014; 1019–1029 Revista de Biología Tropical; Vol. 62 Núm. 3 (2014): Volumen 62 – Número regular 3 – Setiembre 2014; 1019–1029 Revista Biología Tropical; Vol. 62 N.º 3 (2014): Volume 62 – Regular number 3 – September 2014; 1019–1029 2215-2075 0034-7744 10.15517/rbt.v62i3 spa https://revistas.ucr.ac.cr/index.php/rbt/article/view/12408/14723 https://revistas.ucr.ac.cr/index.php/rbt/article/view/12408/14724 Copyright (c) 2014 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |