Feeding habits of four species of mesopelagic fishes from the Northern Chilean
Rev. biol. trop
; Rev. biol. trop;54(2): 613-622, jun. 2006. mapas, tab, graf
Article
in En
| LILACS
| ID: lil-492041
Responsible library:
BR1.1
ABSTRACT
The feeding habits of four species of mesopelagic fishes from northern Chile are described Triphoturus mexicanus, Diogenichtys atlanticus, Vinciguerria lucetia and Cyclothone acclinidens. Samples were captured in September 1988 between 18 degrees 25' and 19 degrees 09'S in the South West Pacific. The quantitative and qualitative analyses of the stomach content showed that the species have a zooplanktophagous opportunistic behavior, mainly predating on Crustaceans, especially on Copepods. The evaluation of the trophic spectrum and diversity of T. mexicanus and C. acclinidens suggests that these are nictoepipelagic species, while D. atlanticus and V. lucetia would be typical mesopelagic.
RESUMEN
Se describen los hábitos alimenticios de cuatro especies de peces mesopelágicos del norte de Chile Triphoturus mexicanus, Diogenichtys atlanticus, Vinciguerria lucetia and Cyclothone acclinidens. Las muestras fueron capturadas en setiembre de 1988 entre 18°25 y 19°09 S en el Pacífico suroeste. El análisis cualitativo y cuantitativo del contenido estomacal mostró que las especies tienen un comportamiento zooplantofago oportunista, depredando principalmente crustáceos, especialmente copépodos. La evaluación del espectro trófico y diversidad de T. mexicanus y C. acclinidens sugiere que estas son especies nictoepipelágicas, mientras que D. alanticus y V. lucetia serían mesopelágicas típicas.
Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Predatory Behavior
/
Ecosystem
/
Crustacea
/
Diet
/
Feeding Behavior
/
Fishes
Type of study:
Qualitative_research
Limits:
Animals
Country/Region as subject:
America do sul
/
Chile
Language:
En
Journal:
Rev. biol. trop
Journal subject:
BIOLOGIA
/
MEDICINA TROPICAL
Year:
2006
Document type:
Article
Affiliation country:
Chile
/
Mexico
Country of publication:
Costa Rica