Effects of environmental conditions and prey size on locomotion behaviors of planktivorous fish.
J Environ Biol
;
2005 Apr; 26(2): 243-50
Artículo
en Inglés
| IMSEAR
| ID: sea-113580
ABSTRACT
The locomotion behavior of Pseudorasbora parva was observed in laboratory under various light intensity, turbidity, structural complexity and zooplankton size, focusing on swimming speed and time of search, approach, and attack. At low prey density, the satiation level affected the swimming speed only slightly. The search speed was nearly constant regardless of the satiation level to reduce the swimming energetic cost when opportunities of encountering prey were low. However, the attack and approach speeds slightly decreased with satiation. With increasing visual and swimming conditions, the approach speed increased markedly, but the search and attack speeds did not. Although the time for the approach and attack to capture a prey did not change much with decreasing swimming and visual conditions, the search time significantly increased to compensate for the decreased swimming speed.
Texto completo:
Disponible
Índice:
IMSEAR (Asia Sudoriental)
Asunto principal:
Conducta Predatoria
/
Natación
/
Cyprinidae
/
Daphnia
/
Conducta Alimentaria
/
Animales
Idioma:
Inglés
Revista:
J Environ Biol
Año:
2005
Tipo del documento:
Artículo
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