Assessment of the status of the coastal groundfish assemblage exploited by the Viareggio fleet (Southern Ligurian Sea)

Alvaro Abella; Michela Ria; Cecilia Mancusi

doi:10.3989/scimar.2010.74n4793

Autores/as

Alvaro Abella Agenzia Regionale Protezione Ambiente Toscana
Michela Ria Agenzia Regionale Protezione Ambiente Toscana
Cecilia Mancusi Agenzia Regionale Protezione Ambiente Toscana

DOI:

https://doi.org/10.3989/scimar.2010.74n4793

Palabras clave:

Mediterráneo nord-occidental, pesquerías multiespecíficas, modelos de producción, evaluación de estocs, pesca comercial, proyecciones

Resumen

El conjunto de especies costeras explotado comercialmente por la flota de Viareggio fue evaluado para definir su estado de explotación y sostenibilidad. El uso de un modelo de producción permitió definir pautas de manejo pesquero para estas especies para las que los datos disponibles son limitados. Se utilizó el modelo de producción excedente ASPIC. Los resultados mostraron para la mayoría de las especies, biomasas drásticamente reducidas (B₂₀₀₈/B₀ entre 0.05 y 0.35) con altos valores relativos de mortalidad por pesca (F₂₀₀₈/F_MSY entre 1.18 y 1.64). Proyecciones realizadas con ASPIC permitieron evaluar estrategias de explotación para un periodo de diez años. Manteniendo el esfuerzo a nivel del 2008, para ninguna especie se prevé que la recuperación de la población alcance el nivel de B_MSY. Una reducción del esfuerzo del 40% debería conducir a un incremento, a medio plazo, de la biomasa de casi todas las especies por encima del B_MSY, incrementándose asimismo sustancialmente los rendimientos de las especies más importantes.

Descargas

Los datos de descargas todavía no están disponibles.

Citas

Abella, A. and F. Serena. – 1998. Stato di sfruttamento del nasello nei compartimenti di pesca di Livorno e Viareggio. Biol. Mar. Medit., 5(2): 136-150.

Abella, A., F. Serena, L. Fortunati, U. Mammini, D. Lari and R. Ciardelli. – 2001. Use of GIS for the analysis of spatial data on fishing effort and seasonal changes in fishing strategies for Tyrrhenian Sea bottom trawl fisheries. In: T. Nishida, C.E. Hollingworth, and P. Kailola (eds.), Proceedings of the First International Symposium on GIS in Fishery Science, pp. 119-129. Seattle, WA, 2-4 March 1999. Fishery GIS Research Group, Kawagoe, Saitama, Japan.

Abella, A., P. Carpentieri, A. Mannini, M. Ria, P. Sartor, C. Viva and A. Voliani. – 2005a. Use of fisheries independent data for the definition of the stock status of Mullus barbatus utilizing mortality rates based reference points. 7th Meeting of the Sub-Committee on Stock Assessment (SCSA) FAO, Rome, 26-30 September, 2005.

Abella, A., M. Ria and F. Serena. – 2005b. Usefulness of legal size for the recovery of a European hake stock in a North-western Mediterranean bottom trawl fishery. ICES CM 2005 W: 19.

Booth, A.J. and A.E. Punt. – 1998. Evidence for rebuilding in the panga stock on the Agulhas Bank, South Africa. Fish. Res., 34: 103-121. doi:10.1016/S0165-7836(97)00092-1

Bousquet, N., T. Duchesne and L. Rivest. – 2008. Redefining the maximum sustainable yield for the Schaefer population model including multiplicative environmental noise. J. Theor. Biol, 254: 1-26. doi:10.1016/j.jtbi.2008.04.025 PMid:18571675

Blueweiss, L., M. Fox, V. Kudzma, D. Nakashima, R. Peters and S. Sams. – 1978. Relationship between body size and some life-history parameters. Oecologia, 37: 257-272. doi:10.1007/BF00344996

Caddy, J. – 1998. A short review of precautionary reference points and some proposals for their use in data-poor situations. FAO Fish. Tech. Pap., 379, Rome. 29 pp.

Caddy, J. F. and O. Defeo. – 1996. Fitting the exponential and logistic surplus yield models with mortality data: some explorations and new perspectives. Fish. Res., 25: 39-62. doi:10.1016/0165-7836(95)00429-7

Cadrin, S. – 1999. A Precautionary Approach to Fishery Control Rules Based on Surplus Production Modeling. Proceedings, 5th NMFS NSAW. 1999. NOAA Tech. Memo. NMFS-F SPO-40.

Cadrin, S.X. and. E.M.C Hatfield. – 2002. Relative biomass and production of long fin inshore squid, Loligo pealeii. Bull. Mar. Sci., 71: 1115-1116.

Carbonell, A. and M. Azevedo. – 2003. Application of non-equilibrium production models to the red shrimp (Aristaeus antennatus, Risso, 1816) fishery in the northwestern Mediterraenan. Fish. Res., 65: 323-334 doi:10.1016/j.fishres.2003.09.023

Cortes, E. – 2000. Potential rates of increase and rates of increase for generation for three species of pelagic sharks from the Atlantic Ocean. Coll. Vol. Sci. ICCAT, 51(6): 1822-1828.

EC. – 2006. Commission of the European Communities. Communication from the Commission to the Council and the European Parliament. Implementing sustainability in EU fisheries through maximum sustainable yield. COM(2006)/360. http://europa.eu/legislation_summaries/maritime_affairs_and_fisheries/fisheries_resources_and_environment/166037_en.htm

Efron, B.E. and G. Gong. – 1983. A leisurely look at the bootstrap, the jackknife, and cross validation. Am. Stat., 47: 36-48. doi:10.2307/2685844

Eggert, H. and P. Martinsson. – 2003. Commercial fishers and expected utility. XV EAFE Conference, IFREMER, Session 12 Fisheries Dynamics.

Gedamke, T., J.M. Hoenig, J.A. Musick, W. DuPaul and S.H. Gruber.– 2007. Using demographic models to determine intrinsic rate of increase and sustainable fishing for elasmobranches: Pitfalls, Advances and Applications. N. Am. J. Fish. Manag., 27: 605-618. doi:10.1577/M05-157.1

Hilborn, R. and C.J. Walters. – 1992. Quantitative Fisheries Stock Assessment. Choice, Dynamics and Uncertainty. Chapman and Hall.

Ludwig, D. and C.J. Walters. – 1989. A robust method for parameter estimation from actch and effort data. Can. J. Fish. Aquat. Sci., 46: 137-144 doi:10.1139/f89-018

NEFSC. – 2008. Panel Summary Report of the Groundfish Assessment Review Meeting (GARM III) Part 3. Biological Reference Points. 28 April – 2 May 2008 Northeast Fisheries Science Center Reference Document 05-13.

Pauly, D. – 1984. Fish population dynamics in tropical waters. A manual for use with programmable calculations. ICLARM, Stud. Rev., 8: 1-325.

Polachek, T., R. Hilborn and A. Punt. – 1993. Using Surplus Production Models: Comparing Methods and Measuring Uncertainty. Can. J. Fish. Aquat. Sci., 50: 2597-2601 doi:10.1139/f93-284

Prager, M. – 1994. A suite of extensions to a non-equilibrium surplus production model. Fish. Bull., 92: 374-389.

Prager, M. – 2005. Users Manual for ASPIC: A Stock-Production Model Incorporating Covariates (ver.5), NMFS, Beaufort Lab. Doc. BL-2004-01.

Prager, M., C.E. Porch, K.W. Shertzer and J.F. Caddy. – 2003. Targets and limits for management of fisheries: a simple probability-based approach. N. Am. J. Fish. Manag., 23: 349-361. doi:10.1577/1548-8675(2003)023<0349:TALFMO>2.0.CO;2

Punt, A.E. and R. Hilborn. – 1996. Biomass dynamic models. User’s manual. FAO Computerized Information Series. (Fisheries) No. 10. FAO, 62 pp.

Rijnsdorp, A., N. Daan and W. Dekker – 2006. Partial fishing mortality per fishing trip: a useful indicator of effective fishing effort in mixed demersal fisheries. ICES J. Mar. Sci, 63: 556-566. doi:10.1016/j.icesjms.2005.10.003

Schnute, J. – 1977. Improved estimates from the Schaefer production model: theoretical considerations. J. Fish. Res. Bd. Can., 34: 583-603.

Tserpes, G., J. Haralabous and D. Maravelias. – 2007 A non-equilibrium surplus production model approach utilizing MEDITS data. FAO-GFCM workshop on trawl survey based monitoring fishery system in the Mediterranean, Rome, 26-28 March 2007.

Prager, M.H. – 2002. Severe decline in abundance of the red porgy, Pagrus pagrus, population of the Atlantic Ocean off the south-eastern United States. Fish. Bull., 100: 351–375.

U.S. Department of Commerce. – 1996. Magnuson-Stevens Fishery Conservation and Management Act as amended through October 11, 1996. NOAA Tech. Mem. NMFS-F/SPO-23.

U.S. Department of Commerce. – 1998. Magnuson2Stevens provisions; national standard guidelines. Federal Register 63:84: 24212-24237.

Vaughan, D.S. and M.H. Prager. – 2002. Severe decline in abundance of the red porgy (Pagrus pagrus) population off the southeastern United States. Fish. Bull., 100(2): 351-375.

Ye, Y. and A.A. Rosenberg. – 1991. A study of the dynamics and management of the hairtail fishery, Trichiurus haumela, in the East China Sea. Aquat. Living. Resour., 4(2): 65-75. doi:10.1051/alr:1991007