| Full text | |
| Author(s): |
Perroca, Julia Fernandes
;
Rodrigues Filho, Jorge Luiz
;
Fransozo, Adilson
;
da Costa, Rogerio Caetano
Total Authors: 4
|
| Document type: | Journal article |
| Source: | Fisheries Research; v. 256, p. 15-pg., 2022-09-13. |
| Abstract | |
In Brazilian marine ecosystems, Farfantepenaeus brasiliensis and F. paulensis are caught around 40-meter isobath, whereas in shallower waters (<20 m), juveniles are caught as bycatch in fisheries targeting other shrimp species. Despite their importance in fisheries, the ecology of the two Farfantepenaeus species is not well understood. Their recruitment patterns still are not clear and both species in adult phase are landed as pink shrimp, making evaluations impossible. In this study, we focused on evaluating a 23-year fisheries-independent dataset, seeking to clarify recruitment patterns and to relate them to El Nin similar to o Southern Oscillation events and environmental factors in the Ubatuba Bay, a traditional trawling area in Southeast Brazil. Generalized Additive Models indicated that both species shared some patterns in early life stages, being more abundant between January to April, when granulometry presented Phi <= 4.5, and salinities and temperatures are higher than 35 and 25 degrees C, respectively. Also F. paulensis abundance increased under El Nin similar to o events. The higher capture of Farfantepenaeus spp. in a period with intense trawling activity and prior to the closed season (March to May) indicated that populations are not adequately protected in the study area. Beyond highlighting the role of shallow marine areas as potential nursery ecosystems for species of pink shrimp, these results provide evidence to support the fishing closed season in the southeastern and southern regions of Brazil. (AU) | |
| FAPESP's process: | 19/01308-5 - What is the impact of trawling on shrimp assembly in marine coastal areas? A temporal analysis of populations at ecosystem level on the North Coast of São Paulo |
| Grantee: | Júlia Fernandes Perroca |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 17/00826-7 - Long-term variability of juveniles of pink shrimp Farfantepenaeus brasiliensis (Latreille 1817) and F. paulensis (Pérez-Farfante 1967) (Decapoda: Penaeidae) and population dynamics in the Ubatuba bay, SP, Brazil |
| Grantee: | Júlia Fernandes Perroca |
| Support Opportunities: | Scholarships in Brazil - Master |
| FAPESP's process: | 98/07090-3 - Benthic marine biodiversity in the state of São Paulo |
| Grantee: | Antonia Cecília Zacagnini Amaral |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |
| FAPESP's process: | 18/13685-5 - Integrative analysis of the Brazilian fauna of decapod crustaceans: taxonomy, phylogenetic systematics, spermiotaxonomy, morphology of post-embryonic development, ecology and conservation |
| Grantee: | Fernando Luis Medina Mantelatto |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |