Population parameters and the relationships between environmental factors and abundance of the Acetes americanus shrimp (Dendrobranchiata: Sergestidae) near a coastal upwelling region of Brazil
AbstractThe population dynamics of Acetes americanus was investigated, focusing on the sex ratio, individual growth, longevity, recruitment and relationship between abundance and environmental factors in the region of Macaé, strongly influenced by coastal upwelling. Otter trawl net samplings were pe...
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
2015-09-01
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| Series: | Brazilian Journal of Oceanography |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592015000300229&lng=en&tlng=en |
| _version_ | 1818936809176956928 |
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| author | Ana Paula Freitas dos Santos Sabrina Morilhas Simões Gabriel Lucas Bochini Cinthia Helena Costa Rogerio Caetano da Costa |
| author_facet | Ana Paula Freitas dos Santos Sabrina Morilhas Simões Gabriel Lucas Bochini Cinthia Helena Costa Rogerio Caetano da Costa |
| author_sort | Ana Paula Freitas dos Santos |
| collection | DOAJ |
| description | AbstractThe population dynamics of Acetes americanus was investigated, focusing on the sex ratio, individual growth, longevity, recruitment and relationship between abundance and environmental factors in the region of Macaé, strongly influenced by coastal upwelling. Otter trawl net samplings were performed from July 2010 to June 2011 at two points (5 m and 15 m). Nearly 19,500 specimens, predominantly females (77.15%), were captured. Their sizes, larger than that of males, indicated sexual dimorphism. Shrimps at lower latitudes present larger sizes and longer longevity than those from higher latitudes. This difference is probably due to low temperatures and high primary productivity. Though no statistical correlation was found between abundance and environmental factors, the species was more abundant in temperatures closer to 20.0º C and in months with high chlorophyll-a levels. Due to the peculiar characteristics of this region, A. americanusshowed greater differences in size and longevity than individuals sampled in other studies undertaken in the continental shelf of Southeast Brazil. |
| first_indexed | 2024-12-20T05:41:58Z |
| format | Article |
| id | doaj.art-0219bd4f0c7640169d3ab21573bcc5ee |
| institution | Directory Open Access Journal |
| issn | 1982-436X |
| language | English |
| last_indexed | 2024-12-20T05:41:58Z |
| publishDate | 2015-09-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Brazilian Journal of Oceanography |
| spelling | doaj.art-0219bd4f0c7640169d3ab21573bcc5ee2022-12-21T19:51:26ZengUniversidade de São PauloBrazilian Journal of Oceanography1982-436X2015-09-0163322923810.1590/S1679-87592015086206303S1679-87592015000300229Population parameters and the relationships between environmental factors and abundance of the Acetes americanus shrimp (Dendrobranchiata: Sergestidae) near a coastal upwelling region of BrazilAna Paula Freitas dos SantosSabrina Morilhas SimõesGabriel Lucas BochiniCinthia Helena CostaRogerio Caetano da CostaAbstractThe population dynamics of Acetes americanus was investigated, focusing on the sex ratio, individual growth, longevity, recruitment and relationship between abundance and environmental factors in the region of Macaé, strongly influenced by coastal upwelling. Otter trawl net samplings were performed from July 2010 to June 2011 at two points (5 m and 15 m). Nearly 19,500 specimens, predominantly females (77.15%), were captured. Their sizes, larger than that of males, indicated sexual dimorphism. Shrimps at lower latitudes present larger sizes and longer longevity than those from higher latitudes. This difference is probably due to low temperatures and high primary productivity. Though no statistical correlation was found between abundance and environmental factors, the species was more abundant in temperatures closer to 20.0º C and in months with high chlorophyll-a levels. Due to the peculiar characteristics of this region, A. americanusshowed greater differences in size and longevity than individuals sampled in other studies undertaken in the continental shelf of Southeast Brazil.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592015000300229&lng=en&tlng=enPelágicoCrescimentolongevidadeMacaé - RJDecapoda |
| spellingShingle | Ana Paula Freitas dos Santos Sabrina Morilhas Simões Gabriel Lucas Bochini Cinthia Helena Costa Rogerio Caetano da Costa Population parameters and the relationships between environmental factors and abundance of the Acetes americanus shrimp (Dendrobranchiata: Sergestidae) near a coastal upwelling region of Brazil Brazilian Journal of Oceanography Pelágico Crescimento longevidade Macaé - RJ Decapoda |
| title | Population parameters and the relationships between environmental factors and abundance of the Acetes americanus shrimp (Dendrobranchiata: Sergestidae) near a coastal upwelling region of Brazil |
| title_full | Population parameters and the relationships between environmental factors and abundance of the Acetes americanus shrimp (Dendrobranchiata: Sergestidae) near a coastal upwelling region of Brazil |
| title_fullStr | Population parameters and the relationships between environmental factors and abundance of the Acetes americanus shrimp (Dendrobranchiata: Sergestidae) near a coastal upwelling region of Brazil |
| title_full_unstemmed | Population parameters and the relationships between environmental factors and abundance of the Acetes americanus shrimp (Dendrobranchiata: Sergestidae) near a coastal upwelling region of Brazil |
| title_short | Population parameters and the relationships between environmental factors and abundance of the Acetes americanus shrimp (Dendrobranchiata: Sergestidae) near a coastal upwelling region of Brazil |
| title_sort | population parameters and the relationships between environmental factors and abundance of the acetes americanus shrimp dendrobranchiata sergestidae near a coastal upwelling region of brazil |
| topic | Pelágico Crescimento longevidade Macaé - RJ Decapoda |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592015000300229&lng=en&tlng=en |
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