Diel Variation in Abundance and Size of the South American Red Shrimp Pleoticus Muelleri (Spence Bate, 1888) (Decapoda, Solenoceridae) in the Ubatuba Region, Southeastern Brazil
| Autor: | Mateus Lopes, Adilson Fransozo, Antonio Leão Castilho, Rogerio Caetano da Costa |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Brazilian Journal of Oceanography, Vol 62, Iss 3, Pp 225-234 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1982-436X 1679-8759 |
| DOI: | 10.1590/S1679-87592014067806203 |
| Popis: | Diel variation in the abundance and size of Pleoticus muelleri in the Ubatuba region was investigated during 2000. During each season of the year, sampling was conducted during the day and at night at 8 depths, from 5 to 40 m. The estimated number of shrimp was 955 individuals, 272 collected during the day and 683 at night. There was a difference in the abundance of P. muelleri between day and night (χ², p=2.33E-40). The abundance during the day and at night differed by season with the exception of the spring (χ², p=0.06). The abundance during both periods also differed by depth, except at 15 and 30 m, where it was not significant (χ², p=0.84 and 0.06, respectively). The shrimp caught at night were generally smaller than those caught during the day (Kolmogorov-Smirnov, p |
| Databáze: | Directory of Open Access Journals |
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