Improving codend selectivity in the fishery of the deep-sea red shrimp Aristeus antennatus in the northwestern Mediterranean Sea




codend selectivity, Aristeus antennatus, mesh configuration, yield per recruit, transition analysis, bottom trawling, NW Mediterranean Sea


The deep-sea red shrimp Aristeus antennatus is one of the most valuable demersal resources in Catalonia (northeast Spain), and Palamós is the most important harbour for this fishery in the area. Here, a management plan published in 2013 established the use of a 40-mm square-mesh codend (40s), replacing the previously used 50-mm diamond mesh codend (50d). The objective was to decrease the amount of juveniles in the catches, but the regulation did not bring the expected results. In this study, we measured and compared the selectivity of the 40s and the 50d in this fishery. In addition, we experimented with the use of a 50-mm square-mesh codend (50s). According to our results, the 40s had a lower 50% selection length (L50) than the 50d, while the 50s had a substantially higher L50 than the other two. A transition analysis showed an increase in yield per recruit after the second year from a hypothetical implementation of the 50s. Our conclusion is that the 40s does not have a higher selectivity than the 50d, which (at least partially) explains the failure to reach the management objective in Palamós. Conversely, the use of a 50s would significantly benefit the fishery, increasing gear selectivity and yield per recruit.


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Armstrong D.W., Ferro R.S.T., Maclennan D.N., et al. 1990. Gear selectivity and the conservation of fish. J. Fish. Biol. 37: 261-262.

Aydin C., Tokaç A., Ula? A., et al. 2011. Selectivity of 40 mm square and 50 mm diamond mesh codends for five species in the Eastern Mediterranean demersal trawl fishery. Afr. J. Biotechnol. 10: 5037-5047.

BOE. 2013. Orden AAA/923/2013, de 16 de Mayo, por la que se regula la pesca de gamba rosada (Aristeus antennatus) con arte de arrastre de fondo en determinadas zonas marítimas próximas a Palamós. 126(Sec. III): 40016-40022.

Coll M., Bahamón N., Sardà F., et al. 2008. Improved trawl selectivity: effects on ecosystems in the South Catalan Sea (NW Mediterranean). Mar. Ecol. 355: 131-147.

Company J.B., Puig P., Sardà F., et al. 2008. Climate influence on deep sea populations. PLoS ONE 3: e1431. PMid:18197243 PMCid:PMC2174526

Demestre M. 1990. Biología de la gamba rosada, Aristeus antennatus (Risso 1816). Ph.D. thesis, Univ. Barcelona.

Demestre M., Lleonart J. 1993. Population dynamics of Aristeus antennatus (Decapoda: Dendrobranchiata) in the northwestern Mediterranean. Sci. Mar. 57: 183-189.

Demestre M., Martín P. 1993. Optimum exploitation of a demersal resource in the western Mediterranean: the fishery of the deep-water shrimp Aristeus antennatus (Risso, 1816). Sci. Mar. 57: 175-182.

DGPAM. 2017. Departament d'Agricultura, Ramaderia, Pesca i Alimentació, Generalitat de Catalunya. Estadístiques de pesca.

Fryer R. J. 1991. A model of between-haul variation in selectivity. ICES J. Mar. Sci. 48: 281-290.

Gorelli G., Sardà F., Company J.B. 2016a. Fishing effort increase and resource status of the deep-sea red shrimp Aristeus antennatus (Risso 1816) in the Northwest Mediterranean Sea since the 1950s. Rev Fish. Sci. Aquac. 24: 192-202.

Gorelli G., Blanco M., Sardà F., et al. 2016b. Spatio-temporal variability of discards in the fishery of the deep-sea red shrimp Aristeus antennatus in the Northwest Mediterranean Sea: implications for management. Sci. Mar. 80: 79-88.

Guijarro B., Massutí E. 2006. Selectivity of diamond- and square-mesh codends in the deepwater crustacean trawl fishery off the Balearic Islands (western Mediterranean). ICES J. Mar. Sci. 63: 52-67.

Lleonart J., Salat J. 1997. VIT: software for fishery analysis. User's manual. FAO Computerized Information Series (Fisheries). Nº 11. FAO, Rome.

Maynou F., Sardà F., Tudela S., et al. 2006. Management strategies for the red shrimp (Aristeus antennatus) fisheries in the Catalan sea (NW Mediterranean) based on bioeconomic simulation analysis. Aquat. Living Resour. 19: 161-171.

MacLennan D.N. (eds) 1992. Fishing gear selectivity. Fish. Res. 13: 201-352.

Millar R.B., Fryer R.J. 1999. Estimating the size-selection curves of towed gears, traps, nets and hooks. Rev. Fish Biol. Fish. 9: 89-116.

Reeves S.A., Armstrong D.W., Fryer R.J., et al. 1992. The effects of mesh size, cod-end extension length and cod-end diameter on the selectivity of Scottish trawls and seines. ICES J. Mar. Sci. 49: 279-288.

Robertson J.H.B., Stewart P.A.M. 1988. A comparison of size selection of haddock and whiting by square and diamond mesh codends. ICES J. Mar. Sci. 44: 148-161.

Sala A., Lucchetti A., Piccinetti C., et al. 2008. Size selection by diamond- and square- mesh codends in multi-species Mediterranean demersal trawl fisheries. Fish. Res. 93: 8-21.

Sardà F., Demestre M. 1987. Estudio biológico de la gamba Aristeus antennatus (Risso, 1816) en el Mar Catalán (NE de Espa-a). Inv. Pesq. 51: 213-232.

Sardà F., Bahamón N., Molí B., et al. 2006. The use of a square mesh codend and sorting grids to reduce catches of young fish and improve sustainability in a multispecies bottom trawl fishery in the Mediterranean Sea. Sci. Mar. 70: 347-353.

Suuronen P., Sardà F. 2007. The role of technical measures in European fisheries management and how to make them work better. ICES J. Mar. Sci. 64: 751-756.

Tosunoglu Z., Aydin C., Salman A., et al. 2009. Selectivity of diamond, hexagonal and square mesh codends for three commercial cephalopods in the Mediterranean. Fish. Res. 97: 95-102.

Wileman D.A., Ferro R.S.T., Fonteyne R., et al. (eds) 1996. Manual of Methods of Measuring the Selectivity of Towed Fishing Gears. ICES Cooperative Res. Rep. 215: 1-126



How to Cite

Gorelli G, Company JB, Bahamón N, Sardà F. Improving codend selectivity in the fishery of the deep-sea red shrimp Aristeus antennatus in the northwestern Mediterranean Sea. Sci. mar. [Internet]. 2017Sep.30 [cited 2024May26];81(3):381-6. Available from:




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