A REVIEW OF THE GENERAL ASPECTS OF REPRODUCTION OF A THREATENED FRESH WATER FISHSPECIES IN BENIN: PARACHANNA OBSCURA (GÜNTER, 1861)

International Journal of Agriculture, Environment and Bioresearch Pub Date : 1900-01-01 DOI:10.35410/ijaeb.2020.5476

Mahunan Tobias Césaire Azon, E. Sossoukpè, Juste Vital Vodounnou, A. Chikou, G. Mensah, E. Fiogbé

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Abstract

Parachanna obscura is a fresh water fish belonging to Channidae family that is recognized as snakehead fish. Its first sexual maturity height is 17.5 cm TL in females and 23.4 cm TL in males. Sexual dimorphism based on observation of the genital papilla is difficult to recognize. The fish species is carnivorous with rapid growth rate. For further evaluation of its aquaculture potential in Benin Republic, the current study aims to make a review on the reproductive aspect of P. obscura. Its resistance, rapid growth and high economic and nutritional values represent important potential for aquaculture because it is highly appreciated by the West African population in general. The natural stock of P. obscurais currently threatened to disappearance in Benin due to fishing pressures that lead to overexploitation. A successful rearing of P. obscura in controlled medium could ensure not only the preservation and improvement of natural stocks but also the production of food fish for sustainable aquaculture.

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贝宁一种受威胁的淡水鱼类繁殖的一般方面的回顾:黑伞鱼(gÜnter, 1861)

暗箱伞鱼是一种淡水鱼，属于鱼科，被认为是蛇头鱼。其初次性成熟高度雌性为17.5 cm TL，雄性为23.4 cm TL。基于生殖器乳头观察的两性二态性是难以识别的。该鱼种为肉食性，生长速度快。为了进一步评价其在贝宁共和国的水产养殖潜力，本研究的目的是对暗箱棘鱼的生殖方面进行审查。它的抗性、快速生长和高经济和营养价值代表了水产养殖的重要潜力，因为它受到西非一般人口的高度赞赏。由于捕捞压力导致过度开发，目前贝宁的暗色木自然种群有消失的危险。在控制培养基中成功养殖暗箱鱼，不仅可以保证自然种群的保存和提高，而且可以保证食用鱼的可持续养殖。

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International Journal of Agriculture, Environment and Bioresearch

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