Reproduction and feeding of the mountain mullet, Agonostomus monticola, in Trinidad, West Indies

Reproduction and feeding were studied in mountain mullet, Agonostomus monticola , in northeast Trinidad during the period January 1987 to September 1988. Macroscopic and microscopic examination of the gonads indicated a single, distinct reproductive season from June to October during the wet season....

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Bibliographic Details
Published in:Environmental biology of fishes 1993-05, Vol.37 (1), p.47-55, Article 47
Main Author: Phillip, D.A.T. (West Indies Univ., St. Augustine (Trinidad and Tobago). Dept. of Zoology)
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Agonostomus monticola
ALGAE
ALIMENTACION DE PECES
ALIMENTATION DES POISSONS
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Autoecology
Biological and medical sciences
CREVETTE
DIET
DIETA
DIMENSION
DIMENSIONS
FISH FEEDING
Freshwater
FRUITS
FRUTAS
Fundamental and applied biological sciences. Psychology
GAMBAS Y CAMARONES
INSECTA
LISA
MADUREZ
MATURITE
MATURITY
MUGE
MULLETS
OVIPOSICION
OVIPOSITION
PERFORMANCE DE REPRODUCTION
PONTE
PRAWNS AND SHRIMPS
PROPORCION DE LOS SEXOS
REGIME ALIMENTAIRE
REPRODUCTIVE PERFORMANCE
REPRODUCTIVIDAD
SEX RATIO
TRINIDAD AND TOBAGO
TRINIDAD Y TOBAGO
TRINITE ET TOBAGO
Vertebrata
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Summary:Reproduction and feeding were studied in mountain mullet, Agonostomus monticola , in northeast Trinidad during the period January 1987 to September 1988. Macroscopic and microscopic examination of the gonads indicated a single, distinct reproductive season from June to October during the wet season. Evidence implies only one spawning event per individual during the reproductive season. Females significantly outnumbered males resulting in a sex ratio of 20.4:1. The mean size at maturity for females was 135 mm fork length (FL). Fecundity (F) is related to size by the equations F = 167.3 FL super(2.7), and F = 16430.7 G + 235079 (G = gutted weight). A. monticola was found to be an omnivorous feeder. The dominant food groups found in the stomachs were insects, prawns, fruits and algae, in order of decreasing importance.
ISSN:0378-1909
1573-5133
DOI:10.1007/BF00000711