| Full text | |
| Author(s): |
Lopes, Mateus
[1, 2, 3]
;
Fransozo, Adilson
[3]
;
Castilho, Antonio Leao
[3]
;
da Costa, Rogerio Caetano
[2]
Total Authors: 4
|
| Affiliation: | [1] Univ Sao Paulo, FFCLRP, Dept Biol, Lab Bioecol & Sistemat Crustaceos, BR-14040901 Ribeirao Preto, SP - Brazil
[2] Univ Estadual Paulista Julio de Mesquita Filho UN, Dept Ciencias Biol, Fac Ciencias, Lab Biol Camaroes Marinhos & Agua Doce, BR-17033360 Bauru, SP - Brazil
[3] Univ Estadual Paulista Julio de Mesquita Filho UN, Inst Biociencias, Dept Zool, BR-18618970 Botucatu, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Brazilian Journal of Oceanography; v. 62, n. 3, p. 225-234, JUL-SEP 2014. |
| Web of Science Citations: | 0 |
| Abstract | |
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<0.01). Pleoticus muelleri juveniles were found primarily at night. This tendency could have influenced the lower mean size for this period. The sediment type and the bottom temperature appear to influence the behavior of this species and consequently the catch rate during the periods analyzed. (AU) | |
| FAPESP's process: | 10/50188-8 - Decapod crustaceans: multi-disciplinary characterization of the sea biodiversity of the State of São Paulo (taxonomy, spermiotaxonomy, molecular biology and population dynamics) |
| Grantee: | Fernando Luis Medina Mantelatto |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |
| FAPESP's process: | 09/54672-4 - Reproductive biology and dynamic population of the Penaeoidean shrimps (Crustacea, Decapoda) from southeastern Brazilian coast: latitudinal effect and suggestion for fishery control |
| Grantee: | Rogério Caetano da Costa |
| Support Opportunities: | Regular Research Grants |