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| Benevides,Larissa J.; Nunes,José de Anchieta C. C.; Costa,Tiego L. A.; Sampaio,Cláudio L. S.. |
| ABSTRACT When confronted by predators, prey need to make an economic decision between continuing their current activity or flee. Flight Initiation Distance (FID), the distance at which an organism begins to flee an approaching threat, has been used to indicate an animal's fearfulness level and a way to examine factors influencing escape decisions. Here we investigated how the FID of the barber surgeonfish, Acanthurus bahianus, responds to the presence of spearfishers in a fishing site in northeast Brazil. Specifically, we examined whether the FID was influenced by body and group size; by the heterogeneity of species in groups formation; and the distance to shelter. Significant differences in FID were observed with increasing body size. We found no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antipredator behaviour; Brazil; Flight initiation distance; Rocky reefs; Spearfishing. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100219 |
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| Nunes,José de Anchieta C. C.; Loiola,Miguel; Miranda,Ricardo J.; Sampaio,Cláudio L. S.; Barros,Francisco. |
| ABSTRACT Fishing pressure affects the behavior of reef fish, especially of fishery-targeted species. In this context, it is critical to understand if fish behavior is preserved in no-take areas (NTAs), which are considered the best instrument for the recovery of fish stocks. Comparing the flight initiation distances (FIDs) of fish inhabiting multiple-use areas (MUAs), where fishing is allowed (including spearfishing), and NTAs is a useful approach to test whether NTAs can be effective as fish refuges. Here, we compared whether the FIDs of two target (Sparisoma axillare and Scarus trispinosus ) and one non-target (Halichoeres poeyi ) labrids are greater in the MUAs than in the NTAs. We also investigated whether group size (GS) and body size (BS) exert any... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Parrotfish; Reef fish behavior; Refuges; Southwest Atlantic; Spearfishing impacts. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000400208 |
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| Sampaio,Cláudio L. S.; Nunes,José de Anchieta C. C.; Mendes,Liana F.. |
| Acyrtus pauciradiatus, new species, is described on the basis of three specimens collected at Fernando de Noronha Archipelago, state of Pernambuco, Brazil. It differs from its congeners by having a reduced number of rays in the pectoral, dorsal, and anal fins and is more isolated geographically, than any other species in the genus. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oceanic island; Endemism; Reef fish; Systematics. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000400002 |
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