The gafftopsail catfish (Bagre marinus) is one of the species of most importance to fisheries in the Gulf of Mexico, particularly in the coastal region of Tabasco. Annual reproductive cycle of gafftopsail catfish, Bagre marinus (Ariidae) in a tropical coastal environment in the Gulf of Mexico. Ciclo reproductivo anual del. Taxonomic Notes: Bagre marinus is a species complex that includes two species, Bagre marinus sensu strictu and Bagre bahiensis (Betancur and Marceniuk.

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Sea Catfish and Gafftopsail Catfish read online p. Views Read Edit View history.

This study aims to describe the feeding habits of gafftopsail catfish. The dorsal and pectoral fins are equipped with a serrated erectile spine, both of which are venomous.

Female condition factor generally indicated a parallel tendency, reaching mariinus values 0. This climatic change results in the salinization of the estuarine system by intrusion of marine water, which favors the migratory event. Gobierno del Estado de Tabasco Ed.

The incidence of albinism can be artificially increased in fish mqrinus exposing the eggs to heavy metals e. To determine the spawning type, oocyte diameters were measured from mature ovaries and diameters were plotted in the form of monthly frequency distribution.

The Southwestern Naturalist 31 4: The diet of the gafftopsail catfish consisted of 30 identified prey species. Male condition factor showed a slight peak in June 0. This exceeds the nine weeks reported for other catfishes: Anales del Instituto de Ciencias del Mar y Limnologia.


Arius felis Linnaeus,A. Few seasonal changes in diet of both sexes were observed, with a progressive increase of occurrence of fishes and diminution of stomatopods and penaeid shrimps. Ariidae along the south-east coast of South Africa.

The proportion of stomach fullness stomachs with food was expressed as a percentage. They are caught with lures such as plugs, spoons, spinners, cut bait, and shrimp, as well as soft plastic lure msrinus shrimp, worms, and shad. Brachyurans were the more important preys inside the annual mrainus of species, reached a maximum frequency of occurrence during dry season Journal of Fish Biology 47, Daniel Loebmann for their criticism of the manuscript and data analysis.

Gafftopsail catfish

Some fishermen use traps for catfish, which is regulated by some states. This, then, is a rare event still undetected in most wild fish species, at least regarding adult individuals. Entered by Luna, Susan M.

The relationship between total length L, in inches and total weight W, in pounds for nearly all species of fish can be expressed by an equation of the form:.

In most tropical catfishes species A. The species is characterized by low fecundity.

Fish community ecology in estuaries and coastal lagoons: Minimum depth reported taken from Ref. Proceedings of Linnaeus Society. Zoologica, New York 25, Carretera Vhsa-Cardenas Km 0. A steady increase in the proportion of females over mm of marunus length was observed Figure 4.


Los hábitos de alimentación del bagre Bagre marinus (Ariidae) en Costa Paraíso, Tabasco, México

In other projects Wikimedia Commons Wikispecies. This paper summarizes observations on the reproductive biology of gafftopsail catfish in a tropical coastal environment, and its association with environmental variables. Analyzes of stomachs contents of individuals 97 females and 68 males for dry season, females and 38 males for rainy season and 83 females and 44 males for nortes season obtained from two commercial landings located in the Chiltepec municipality, Paraiso, Tabasco along one year May to April The anal fin is a few inches anterior to the tail and is white or pale blue, with rays on it and a high, anterior lobe.

Relationships among baagre gonadosomatic index and environmental variables were tested using correlation analyses Zar The GSI and the modal progression of the frequency distribution of oocyte diameter, indicates that spawning occurred mainly during August.

Loricariidae from an Atlantic forest coastal basin. Reproduction and food habits of seven species of northern Gulf of Mexico fishes. Short description Morphology Morphometrics Anal soft rays: