Cover Image

Spermatogenesis in little tunny Euthynnus alletteratus (Rafinesque, 1810) fished on continental shelf of Côte d’Ivoire

Laurent Bahou, Marie-Anne d’Almeida, Tidiani Koné, Célestin Atsé-Boua

Abstract


Testes of 406 males little tunny (Euthynnus alletteratus), collected over a year period from an artisanal commercial fishery, were used to morphologically and histologically assess patterns of the reproductive biology in this small tuna. Most of the specimens examined ranged in size from 35 to 82 cm FL (centimetre fork length). Observation of slides under a light microscope revealed that males investigated have lobular testicular structure. These lobules arrange in a branching system of tubules. Tubules join side by side to one another and yet inter-tubular-spaces separate them. Gametes’ developmental stages occur within such a structure. Histological characteristics were consistent with the description of the six-maturity stages of males little tunny determined on the basis of the macroscopic observation.

References


Assem, S.S., Ismail, R.F., Fahmy, A.F., El-Sayed, H.S., Al-Absawey, M.A., Abou Shabana, N.M., 2016. Reproductive biology, spermatogenesis and biochemical characteristics of male Sparid fish Dentex dentex from the south eastern Mediterranean coast. Egypt J. Aquat. Res., 42, 99-109.

Bahou, L., 2013. Exploitation par la pêche artisanale maritime, Biologie de la reproduction et Régime alimentaire de deux thonidés mineurs: Auxis thazard (Lacepède, 1800) et Euthynnus alletteratus (Rafinesque, 1810) du plateau continental ivoirien. Thèse de Doctorat, Université Félix Houphouët-Boigny de Cocody, Abidjan, Côte d’Ivoire.

Bahou, L., d’Almeida, M.A., Atsé, B.C., Koné, T., 2017. Histology and Spermatogenesis in FrigateTuna Auxis thazard (Lacepède, 1800) Caught in Continental Shelf Waters of Côte d’Ivoire. Int. J. Curr. Res. Biosci. Plant Biol., 4(6), 24-32.

Bahou, L., d’Almeida, M.A., Koné, T., Atsé, B.C., Dadi, S.G., 2016. Reproductive biology and histological characteristics of female little tunny Euthynnus alletteratus (Rafinesque, 1810) caught on continental shelf of Côte d’Ivoire. Sci. J. Biol. Sci., 5(1), 88-102.

Bahou, L., Koné, T., N’Douba, V., N’Guessan, K.J., Kouamélan, E.P., Gooré, B.G., 2007. Food composition and feeding habits of little tunny (Euthynnus alletteratus) in continental shelf waters of Côte d’Ivoire (West Africa). ICES J. Mar. Sci., 34, 244-252.

Billard, F., Fostier, A., Weil, C., Breton, B., 1982. Endocrine control of spermatogenesis in teleost fish. Can. J. Fish Aquat. Sci., 39, 65-79.

Chur, V.N., 1972. Some biological characteristics of little tuna (Euthynnus alletteratus Rafinesque, 1810) in the Eastern part of Tropical Atlantic. Collective Volume of Scientific Papers, ICCAT SCRS / 72 / 51. 1, 489-500.

Collette, B.B., Nauen, C.E., 1983. FAO Species Catalogue. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. FAO Fish Synop., (125), 137.

Diouf, T., 1980. Premières données relatives à l’exploitation et à la biologie de quelques « petits thonidés et espèces voisines »: Euthynnus, Sarda, Scomberomorus au Sénégal. Collection du Volume Scientifique, Papiers ICCAT SCRS / 80 / 52. 15(2), 327-336.

Grier, H.J., Linton, J.R., Leatherland, J.F., De Vlaming, V.L., 1980. Structural evidence for two different testicular types in teleost fishes. Am. J. Anat., 159, 331-345.

Martoja, R., Martoja-Pierson, M., 1967. Initiation aux techniques d’histologie animale. Masson, Paris.

McBride, R.S., Wuenschel, M.J., Grace Thornton, P.N., King, J.R., 2013. Latitudinal and stock specific variation in size and age at maturity of female winter flounder, Pseudopleuronectes americanus, determined with gonad histology. J. Sea Res., 75, 41-51.

Meister, H.S., Pashuk, O., 2005. Male reproductive classification in gonochoristic marine fishes. In: Agenda for 2005 Gonadal Histology Workshop, July 12-13 FWC, 36-40p. St Petersburg, Florida.

Pavlov, D.A., Emel’yanova, N.G., Thuan, L.T.B., Vo Thi, H., 2011. Reproduction and initial development of manybar goatfish Parupeneus multifasciatus (Mullidae). J. Ichthyol., 51(8), 604-617.

Ratty, F.J., Laurs, R.M., Kelly, R.M., 1990. Gonad morphology, histology, and spermatogenesis in South Pacific Albacore Tuna Thunnus alalunga (Scombridae). Fish Bull. US., 88, 207-216.

Séret, B., 1986. Poissons de Mer de l’Ouest africain tropical. Collection Initiations-documentations techniques n° 49. ORSTOM, Paris, 353-371.

Weltzien, F.A., Taranger, G.L., Karlsen, Ø., Norberg, B., 2002. Spermatogenesis and related plasma androgen levels in Atlantic halibut (Hippoglossus hippoglossus L.). Comparative Biochemistry and Physiology. Part A. Elsevier Science Inc., 132(2002), 567-575.


Full Text: PDF

Refbacks

  • There are currently no refbacks.