Estimation of the exploitable biomass and the reference biological point, F0.1, of bogue Boops boops L., in the bay of Bou-Ismail, centre Algerian

Paper Details

Research Paper 01/08/2014
Views (210) Download (10)
current_issue_feature_image
publication_file

Estimation of the exploitable biomass and the reference biological point, F0.1, of bogue Boops boops L., in the bay of Bou-Ismail, centre Algerian

Benina Rachid, Salim Mouffok, Zitouni Boutiba
J. Bio. Env. Sci.5( 2), 420-427, August 2014.
Certificate: JBES 2014 [Generate Certificate]

Abstract

A study of age and growth of Mediterranean bogue ; Boops boops (Linneaus, 1758) from Algerian Mediterranean bay of Bou-Ismail was carried out during the period from Februaries 2013 to January 2014. Five age groups could be separated by Bhattacharya’s method from length frequency data. Mean length by the end of each year of life (cm) of B. boops from the study area were found to be 13.87, 17.13, 21.49, 24.78, and 27.44 cm for age groups from I to V respectively. The estimated von Bertalanffy growth parameters were L∞= 29.66 cm, K= 0.33 year-1 and t0= 0, W∞=209.79 g .The length-weight relationship was W = 0.016 L2.798. Total mortality (Z), natural mortality (M) and fishing mortality (F) were 1.02, 0.36 and 0.66 year-1 respectively the. VIT software (Lleonart and Salat, 2000) was used to determine biomass, virtual population analysis (VPA), and yield or productivity per recruit. The exploitable biomass of the bogue was estimated at 278.87 tons by the V.P.A. The yield per actual recruit (Y/R = 24.864 g) is very close to the MSY or Ymax /R (25.092 g). This result indicates that the bogue stock is in a state of full exploitation. The biomass per actual recruit (B/R = 55.863 g), which refers to the mean annual biomass of survivors as a function of fishing mortality, is higher than the maximum sustainable biomass (Bmax /R = 48.606 g). Given the state of full exploitation of the bogue stock, an adjustment of the ratio Yactual /R is recommended. To do this, fishing effort is set at F0.1, and the values obtained for Y0.1/R and B0.1/R then correspond to 22.799 g and 80.18 g, respectively.

VIEWS 21

Abella AJ, Auterie R, Serena F. 1995. Some aspects of growth and recruitment of hake in the northern Tyrrhenian Sea. Rapp. De la première réunion du groupe de travail DYNPOP du CIESM Tunis. Cahiers Options Méditerranéennes CIHEAM 10, 27–28.

Aldebert Y , Recasens L. 1995. Estimation de la croissance du merlu dans le golfe du Lion par analyse des fréquences de tailles. Rapp. De la première réunion du groupe de travail DYNPOP du CIESM Tunis, Cahiers Options Méditerranéennes CIHEAM 10, 49–50.

Alemany F , Oliver P. 1995. Growth of hake in the Balearic Sea: a proposal of new growth model with higher growth rates. Rapp. De la première réunion du groupe de travail DYNPOP du CIESM Tunis. Cahiers Options Méditerranéennes CIHEAM 10, 51–52.

Allam S M. 2003. Growth, mortality and yield per recruit of Bogue, (Boops boops L.), from the Egyptian Mediterranean waters off Alexandria. Mediterranean Marine Science 4 (1), 87-96.

Anato CB, Ktari MH . 1986. Âge et croissance de (Boops boops L.) Poisson téléostéen Sparidae des côtes tunisiennes. Bulletin de l’Institu National Scientifique et Technique d’Oceanographie et de Pêche,Salammbô 13, 33-54.

Bauchot L, Hureau J. 1984. Fishes of the North-Eastern Atlantic and the Meediterranean, Richard Clay Ltd.

Bauchot ML. 1987. Poissons osseux. Fiches FAO d’ identification pour les besoins de la pêche. (rev. 1). Méditerranée et mer Noire. Zone de pêche 37. Vol. II., M. S. Fischer, M. L. Bauchot and M. Schneider, ed., Commission des Communautés Européennes and FAO, Rome.

Bhattacharya CG. 1967. A simple method of resolution of a distribution into Gaussian components. Biometrics 23, 115–135.

Botros G, EL-Sharif R , Huni H. 1985. Biometry, length-weight relationship and condition of(Boops boopsL.), family (Sparidae) from the western Libyan waters. Bulletin of the Marine Biology Research 6, 78 –101.

Bouaziz A. 2006. Estimation du point de référence biologique, F0.1, de Sardinella aurita de la région centre de la côte algérienne. Bulletin de la Societe Zoologique de France131 (2), 97-106.

Caddy JF. 2009. Practical issues in choosing a framework for resource assessment and management of Mediterranean and Black Sea fisheries. Mediterranean Marine Science 10 (1), 83-119.

Campana SE. 2001. Accuracy, precision and quality control in age determination, including a review of the use and abuse of age validation methods. Journal of Fish Biology 59, 197–242.

Chali-chabane F. 1988. Contribution à l’étude biologique et dynamique des bogues, (Boops boops L.) de la baie de Bou-Ismail. Thèse de Magister. Institut des Sciences de la Mer et de l’aménagement du littoral (ISMAL), Algérie, 133 p.

Djabali F, Mehailia A, Koudil M , Brahmi B. 1994. Empirical equations for the estimation of natural mortality in Mediterranean teleosts. Naga ICLARM Q 16(1), 35-37.

Ecoutin JM, Albaret JJ , Trape S. 2005. Length– weight relationships for fish populations of a relatively undistributed tropical estuary: The Gambia. Fisheries Research 72, 347–351.

Gayanilo  FC,  Pauly  D, Sparre P. 2005. FISAT User’s Guide.FISAT II. http//www.fao.org/fi/statist/fisoft/fisat/downloads.

Gon Calves JMS, Benters L, Linop G, Beirol J R, Candrio AV M , Erzini K. 1979. Weight-length relationship for selected fish species of the small-scale demersal fishes of the southwest coast of Portugal. Fisheries Research 30, 253 –256.

Hassan MWA. 1990. Comparative biological studies between two species of family Sparidae, Boops boops and Boops salpain Egyptian Mediterranean waters. M.Sc. Thesis, Faculty of Science, Alexandria University, 198 p.

Hernandez V A. 1989. Study on the age and growth of bogue (boops boops L.) from the central Adriatic Sea. Cybium 13 (3), 281 – 288.

Katsanevakis S, Maravelias CD, Vassilopoulou V. 2010. Otter trawls in Greece: Landing profiles and potential métiers. Mediterranean Marine Science11 (1), 43-59.

Kherraz A. 2011. Aspect biologique et évaluation de la pêcherie de la bogue (Boops boopsL.) de la frange côtière oranaise. Biologie – Croissance – Exploitation. Thèse de Magister, Université d’Oran, Algérie, 110 p.

Lleonart J, Salat J. 2000. VIT (version 1. 1): Soft-ware for fishery analysis. User’s manual. On ligne: http//www.faocopemed.org/es/activ/infodif/vit.htm.

Monteiro P, Bentes L, Coelho R, Correia C, Goncalves JMS et al.,2006. Age and growth, mor-tality, reproduction and relative yield per recruit of the bogue, (Boops boops L.) Sparidae), from the Algarve (south of Portugal) longline fishery. Journal of Applied Ichthyology 22, 345-352.

Pauly D. 1984 . On the inter relationships between natural mortality, growth parameters and mean environmental temperature in 175 fish stocks. J. Cons. CIEM 39(3), 175–192.

Schwartz D. 1992. Méthodes statistiques à l’usage des médecins et des biologistes. Bulletin of the Japanese Society of Fisheries Oceanography 51, 51– 54.

Stergio KI, Moutopoulos DK. 2001. A review of length-weight relationships of fishes from Greek marine waters. Naga, ICLARM Q 24 (1-2), 23 – 39.