Habitat use by Centropomus undecimalis in a rocky area of estuarine beach in north-east Brazil.
J Fish Biol
; 89(1): 793-803, 2016 Jul.
Article
em En
| MEDLINE
| ID: mdl-27221331
The influence of habitat, diel period, tidal phase and moon phase on the spatial distribution of Centropomus undecimalis was investigated at the mouth of the Timbo estuary, north-east Brazil. Underwater visual censuses were conducted in three areas comprising a mix of mud, sand and beach rock substrata; with one of the areas having additional structural complexity in the form of unused wooden debris. The area with debris housed significantly higher densities of juvenile and adult C. undecimalis whereas sub-adults were more abundant in an area lacking the wooden debris. Juvenile abundance was greatest during the day, whereas sub-adult and adults were more abundant at night. There were significant interactions between habitat, diel period, tidal phase and moon phase for all ages of C. undecimalis. These results emphasize the need to account for a range of environmental factors when planning for the conservation of estuarine and coastal habitats.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Perciformes
/
Ecossistema
Limite:
Animals
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
J Fish Biol
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Reino Unido