Scientia Marina, Vol 71, No 3 (2007)

Demersal and epibenthic assemblages of trawlable grounds in the northern Alboran Sea (western Mediterranean)


https://doi.org/10.3989/scimar.2007.71n3513

Esther Abad
Centro Oceanográfico de Santander, Instituto Español de Oceanografía, Santander, Spain

Izaskun Preciado
Centro Oceanográfico de Santander, Instituto Español de Oceanografía, Santander, Spain

Alberto Serrano
Centro Oceanográfico de Santander, Instituto Español de Oceanografía, Santander, Spain

Jorge Baro
Centro Oceanográfico de Málaga, Instituto Español de Oceanografía, Málaga, Spain

Abstract


The composition and abundance of megabenthic fauna caught by the commercial trawl fleet in the Alboran Sea were studied. A total of 28 hauls were carried out at depths ranging from 50 to 640 m. As a result of a hierarchical classification analysis four assemblages were detected: (1) the outer shelf group (50-150 m), characterised by Octopus vulgaris and Cepola macrophthalma; (2) the upper slope group (151-350 m), characterised by Micromesistius poutassou, with Plesionika heterocarpus and Parapenaeus longirostris as secondary species; (3) the middle slope group (351-640 m), characterised by M. poutassou, Nephrops norvegicus and Caelorhincus caelorhincus, and (4) the small seamount Seco de los Olivos (310-360 m), characterised by M. poutassou, Helicolenus dactylopterus and Gadiculus argenteus, together with Chlorophthalmus agassizi, Stichopus regalis and Palinurus mauritanicus. The results also revealed significantly higher abundances in the Seco de los Olivos seamount, probably related to a higher food availability caused by strong localised currents and upwellings that enhanced primary production. Although depth proved to be the main structuring factor, others such as sediment type and food availability also appeared to be important. Differences between shelf and slope assemblages could be in part related to a greater dependence on benthic resources in the former and a higher use of planktonic resources in the latter.


Keywords


demersal fish; epibenthos; bathymetric distribution; discards; western Mediterranean; Alboran Sea; Seco de los Olivos seamount

Full Text:


PDF

References


Abelló, P., F.J. Valladares and A. Castellón. – 1988. Analysis of the structure of decapod crustacean assemblages off the Catalan coast (North-West Mediterranean). Mar. Biol., 98: 39-49. doi:10.1007/BF00392657

Abelló, P., A. Carbonell and P. Torres. – 2002. Biogeography of epibenthic crustaceans on the shelf and upper slope off the Iberian Peninsula Mediterranean coasts: implications for the establishment of natural management areas. Sci. Mar., 66: 2, 183-198.

Ballesteros, M., J. Rivera, A. Muñoz, A. Muñoz-Martín, J. Acosta, A. Carbó and E. Uchupi. Alboran Basin, Southern Spain. Part II: Tectonics. Mar. Petrol. Geol. (in press).

Bertrand, J., L. Gil de Sola, C. Papakonstantinou, G. Relini and A. Souplet. – 2000. Contribution on the distribution of elasmobranchs in the Mediterranean (from the Medits surveys). Biol. Mar. Mediterr., 7: 385-399.

Cartes, J.E., P. Abello, D. Lloris, A. Carbonell, P. Torres, F. Maynou and L. Gil de Sola. – 2002. Feeding guilds of western Mediterranean demersal fish and crustaceans: analysis based on a spring survey. Sci. Mar., 66 : 209-220.

Cartes, J.E., F. Maynou, J. Moranta, E. Massuti, D. Lloris and B. Morales-Nin. – 2004a. Patterns of bathymetric distribution among deep-sea fauna at local spatial scale: comparison of mainland vs. insular areas. Prog. Oceanogr., 60: 29-45. doi:10.1016/j.pocean.2004.02.001

Cartes, J.E., F. Maynou, F. Sardá, J.B. Company, D. Lloris and S. Tudela. – 2004b. The Mediterranean deep-sea ecosystems. An overview of their diversity, structure, functioning and anthropogenic impacts, with a proposal for their conservation. Part I. IUCN, Málaga and WWF, Rome, pp 9-38.

D’Onghia, G., C. Politou, A, Bozzano, D. Lloris, G. Rotllant, L. Sion and F. Mastrototaro. – 2004. Deep-water fish assemblages in the Mediterranean Sea. Sci. Mar., 68: 87-99.

Demestre, M., P. Sánchez and P. Abelló. – 2000. Demersal fish assemblages and habitat characteristics on the continental shelf and upper slope of the north-western Mediterranean. J. Mar. Biol. Ass. U.K., 80: 981-988. doi:10.1017/S0025315400003040

Duineveld, G.C.A., A. Künitzer, U. Niemann, P.A.W.J. Wilde and J.S. Gray. – 1991. The macrobenthos of the North Sea. Neth. J. Sea Res., 28: 53-65. doi:10.1016/0077-7579(91)90004-K

Ercilla, G., B. Alonso and J. Baraza. – 1992. Sedimentary evolution of the northwestern Alboran Sea during the Quaternary. Geo- Marine Letters, 12:144-149. doi:10.1007/BF02084925

Fielding, S., N. Crisp, J.T. Allen, M.C. Hartman, B. Rabe and H.S.J. Roe. – 2001. Mesoscale subduction at the Almeria–Oran front. Part 2. Biophysical interactions. J. Mar. Sys., 30: 287–304. doi:10.1016/S0924-7963(01)00063-X

Flanagan, J.P. – 1972. Physiography of the western Mediterranean Sea. The Alboran Sea. In: Carter, T. G., Flanagan, J. P., Jones, C. R., Marchant, F. L., Murchison, R. R., Rebman, J. H., Sylvester, J. C., Whitney, J. C. (eds). A new bathymetric chart and physiography of the Mediterranean Sea. The Mediterranean Sea: A Natural Sedimentation Laboratory, pp 6-7.

Fock, H., F. Uiblein, F. Köster and H. Von Westernhagen. – 2002. Biodiversity and species-environment relationships of the demersal fish assemblage at the Great Meteor Seamount (subtropical NE Atlantic), sampled by different trawls. Mar. Biol., 141: 185-199. doi:10.1007/s00227-002-0804-y

Gaertner, J.C., J.A. Bertrand and A. Souplet. – 2002. STATIS-CoA: a methodological solution to assess the spatio-temporal organization of species assemblages of the French Mediterranean Sea. Sci. Mar., 66: 221-232.

Gaertner, J.C., J.A. Bertrand, L. Gil de Sola, J.P. Durbec, E. Ferrandis and A. Souplet. – 2005. Large spatial scale variation of demersal fish assemblage structure on the continental shelf of the NW Mediterranean Sea. Mar. Ecol. Prog. Ser. 297: 245-257. doi:10.3354/meps297245

González, M. and P. Sánchez. – 2002. Cephalopod assemblages caught by trawling along the Iberian Peninsula Mediterranean coast. Sci. Mar., 66: 199-208.

Goñi, R. and D. Latrouite. – 2005. Biology, ecology and fisheries of Palinurus spp. species of European waters: Palinurus elephas (Fabricius, 1787) and Palinurus mauritanicus (Gruvel, 1911). Cah. Biol. Mar., 46: 127-142.

Heburn, G.W. and P.E. La Violette. – 1990. Variations in the structure of the anticyclonic gyres found in the Alboran Sea. J. Geo. Res., 95: 1599-1613. doi:10.1029/JC095iC02p01599

Hernández Molina, F.J. – 1993. Dinámica sedimentaria y evolución durante el Pleistoceno terminal-Holoceno del margen noroccidental del mar de Alborán. Modelo de estratigrafía secuencial de muy alta resolución en plataformas continentales. Ph. D. thesis, Univ. Granada.

Hopkins, T.S. – 1985. Physics in the sea. In: R. Margalef (ed.). Key environments: Western Mediterranean, pp 100-125. Pergamon Press, New York.

Kallianiotis, A., P. Vidoris and G. Sylaios. – 2004. Fish species assemblages and geographical sub-areas in the North Aegean Sea, Greece. Fish. Res., 68: 171-187. doi:10.1016/j.fishres.2003.12.007

Kallianiotis, A., K. Sophronidis, P. Vidoris and A. Tselepides. – 2000. Demersal fish and megafaunal assemblages on the Cretan continental shelf and slope (NE Mediterranean): seasonal variation in species density, biomass and diversity. Prog. Oceanog., 46: 429-455. doi:10.1016/S0079-6611(00)00028-8

Koslow, J.A. – 1997. Seamounts and the ecology of deep-sea fisheries. Amer. Scient., 85: 168-176.

Koslow, J.A., G.W. Boehlert, J.D.M. Gordon, R.L. Haedrich, P. Lorance and N. Parin. – 2000. Continental slope and deep-sea fisheries: implications for a fragile ecosystem. ICES J. Mar. Sci., 57: 548-557. doi:10.1006/jmsc.2000.0722

Maldonado, A. and M.C. Comas. – 1992. Geology and geophysics of the Alboran Sea: An introduction. Geo-Marine Letters, 12: 61-65. doi:10.1007/BF02084913

Maldonado, A., A.C. Campillo, A. Mauffret, B. Alonso, J. Woodside and J. Campos. – 1992. Alboran Sea Late Cenozoic tectonic and stratigraphic evolution. Geo-Marine Letters, 12: 179-186. doi:10.1007/BF02084930

Massutí, E. and J. Moranta. – 2003. Demersal assemblages and depth distribution of elasmobranchs from the continental shelf and slope off the Balearic Islands (western Mediterranean). ICES J. Mar. Sci., 30: 753-766. doi:10.1016/S1054-3139(03)00089-4

Massutí, E. and O. Reñones. – 2005. Demersal resource assemblages in the trawl fishing grounds off the Balearic Islands (western Mediterranean). Sci. Mar. 69: 167-181.

Morato, T., W.W.L. Cheung and T.J. Pitcher. – 2006. Vulnerability of seamount fish to fishing: fuzzy analysis of life-history attributes. J. Fish Biol., 68: 209-221. doi:10.1111/j.0022-1112.2006.00894.x

OSPAR. – 2003. Criteria for the identification of species and habitats in need of protection and their method of application (the Texel-Faial Criteria). Biodiversity Committee (BDC) 03/10/1- E, Annex 5- OSPAR Convention for the protection of the marine environment of the NE Atlantic, Dublin, 2003, 14 pp. Rogers, A.D. – 1994. The biology of seamounts. Adv. Mar. Biol., 30: 305-350.

Sánchez, P., M. Demestre and P. Martín. – 2004. Characterisation of the discards generated by bottom trawling in the northwestern Mediterranean. Fish. Res., 67: 71-80. doi:10.1016/j.fishres.2003.08.004

Sarhan, T., J. García Lafuente, M. Vargas, J.M. Vargas and F. Plaza. – 2000. Upwelling mechanisms in the northwestern Alboran Sea. J. Mar. Sys., 23: 317-331. doi:10.1016/S0924-7963(99)00068-8

Shcherbachev Yu, N., E.I. Kukuev and V.I. Shlibanov. – 1985 Composition of the benthic and demersal ichthyocenoses of the submarine mountains in the southern part of the North Atlantic Range. J. Ichthyol., 25: 110-125.

Templado, J., M. García Carrascosa, L. Baratech, R. Capaccioni, A. Juan, A. López-Ibor, R. Silvestre and C. Massó. – 1986. Estudio preliminar de la fauna asociada a los fondos coralíferos del mar de Alborán (SE de España). Bol. Inst. Esp. Oceanog., 3: 93-104.

Tintoré, J., P.E. La Violette, I. Blade and A. Cruzado. – 1988. A study of an intense density front in the eastern Alboran Sea: The Almeria-Oran Front. J. Phys. Oceanog., 18: 1384-1397. doi:10.1175/1520-0485(1988)018<1384:ASOAID>2.0.CO;2

Ungaro, N., C. Marano, R. Marsan, M. Martino, M.C. Marzano, G. Strippoli and A. Vlora. – 1999. Analysis of demersal species assemblages from trawl surveys in the South Adriatic Sea. Aquat. Liv. Res., 12: 177-185. doi:10.1016/S0990-7440(00)88469-7

WWF/Adena. – 2006. Listado de la propuesta de WWF/Adena de Áreas Marinas Protegidas (AMP). Internet document (www.wwf.es)




Copyright (c) 2007 Consejo Superior de Investigaciones Científicas (CSIC)

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.


Contact us scimar@icm.csic.es

Technical support soporte.tecnico.revistas@csic.es