Morphometric relations for body size and mouth dimensions for four fish species in the Strait of Gibraltar

• Autorzy: Czerwinski I A , Gutierrez-Estrada J.C. , Soriguer M.C. , Hernando J.A.
• Języki publikacji: EN

Abstrakty

EN

Background. The deep-water longline fishery of the blackspot seabream, Pagellus bogaraveo, is an economically important fishery in the Strait of Gibraltar, which is a very complex transition ecosystem between the Mediterranean Sea and the Atlantic Ocean with an extreme spatial and temporal variability. This paper presents a series of morphometric relations for the four most important species in this fishery. Some ecological considerations about the results are also discussed. Materials and Methods. The data were collected during a gear selectivity study, using different sizes of hooks baited with sardine. Relations for weight–length, length–length, and mouth dimensions for blackspot seabream, Pagellus bogaraveo (Brünnich, 1768); Atlantic pomfret, Brama brama (Bonnaterre, 1788); blackbelly rosefish, Helicolenus dactylopterus (Delaroche, 1809); and Mediterranean horse mackerel, Trachurus mediterraneus (Steindachner, 1868) were estimated and compared with the ones reported for the same species from other areas. Results. The sample size varied from 89 for T. mediterraneus to 2180 for P. bogaraveo. The fitted L–W relations explained more than 81% of the variance. For P. bogaraveo and T. mediterraneus, the estimated allometric coefficient was higher than those reported for other areas, showing a faster increase in weight, in contrast to H. dactylopterus and B. brama that showed a slower increase in weight. Moreover, linear and highly significant relations between mouth size and fish length were found for P. bogaraveo, H. dactylopterus, and T. mediterraneus. Conclusion. In this study, the first record for total length–standard length relation for H. dactylopterus is reported based on real measurements. There has been no previous studies on the relation between the different mouth size dimensions for the studied species as well as for mouth size and body length relations for P. bogaraveo and H. dactylopterus. The difference between estimated and reported coefficients might be attributed to different environmental adaptations and to the size ranges used due to the gear-size selectivity.

Słowa kluczowe

PL

fish species; fish size; morphometry; mouth dimension; body size; Gibraltar; Pagellus bogaraveo; Brama brama; Helicolenus dactylopterus; Trachurus mediterraneus; weight; length; spatial variability; temporal variability

• Wydawca: -
• Czasopismo: Acta Ichthyologica et Piscatoria
• Rocznik: 2008
• Tom: 38
• Numer: 2
• Opis fizyczny: p.81-90,fig.,ref.

Twórcy

autor

Czerwinski I A

• Facultad de Ciencias del Mar y Ambientales, Campus de Puerto Real, Universidad de Cadiz, Cadiz, Spain

autor

Gutierrez-Estrada J.C.

autor

Soriguer M.C.

autor

Hernando J.A.

Bibliografia

• Alcázar J.L. 1987. Aportación al estudio del besugo en El Principado de Asturias. Principado de Asturias: Servicio de Publicaciones.
• Ayers D., Francis M.P., Griggs L.H., Baird S.J. 2004. Fish bycatch in New Zealand tuna longline fisheries, 2000–01 and 2001–02. New Zealand Fisheries Assessment Report 2004/46.
• Bagenal T.B., Tesch F.W. 1978. Age and growth. Pp. 101–136.In: Bagenal T.B. (ed.) Methods for assessment of fish production in fresh waters. 3rd edn. Blackwell Scientific Publications, Oxford.
• Campillo A. 1992. Les pęcheries françaises de Médditerranée:synthčse des connaissances. France. Institut Français de Recherche pour l’Exploitation de la Mer.
• Coull K.A., Jermyn A.S., Newton A.W., Henderson G.I.,Hall W.B. 1989. Length/weight relationships for 88 species of fish encountered in the North Atlantic. Scottish Fishery Research Report 43.
• Djabali F., Mehailia A., Koudil M., Brahmi B. 1993.Empirical equations for the estimation of natural mortality in Mediterranean teleosts. Naga, ICLARM Quart 16: 35–37.
• Dorel D. 1986. Poissons de l’Atlantique nord-est relations taillepoids.Institut Français de Recherche pour l’Exploitation de la Mer.
• Dulcic J., Kraljevic M. 1996. Weight–length relationship for 40 species in the eastern Adriatic (Croatian waters).Fisheries Research 28: 243–251.
• Ehlinger T.,Wilson D. 1988. Complex foraging polymorphism in bluegill sunfish. Proceedings of the National Academy of Science USA 85: 1878–1882.
• Erzini K., Gonçalves J.M.S., Bentes L., Lino P.G. 1997. Fish mouth dimensions and size selectivity in a Portuguese longline fishery. Journal of Applied Ichthyology 13: 41–44.
• Forsman A., Shine R. 1997. Rejection of non-adaptive hypotheses for intraspecific variation in trophic morphology in gape-limited predators. Biological Journal of the Linneon Society 62: 209–223.
• Froese R., Pauly D. (eds.) 2007. FishBase. version (10/2007)www.fishbase.org
• Gil J. 2006. Biología y pesca del voraz (Pagellus bogaraveo (Brünich, 1768)) en el estrecho de Gibraltar. Ph.D. Thesis,Universidad de Cádiz, Cádiz, Spain.
• Gonçalves J.M.S., Bentes L., Lino P.G., Ribeiro J.,Canario A.V.M., Erzini K. 1997. Weight–length relationships for selected fish species of the small-scale demersal fisheries of the south and south-west coast of Portugal.Fisheries Research 30: 253–256.
• Gutiérrez-Estrada J.C., Pulido-Calvo I., Fenández-Delgado C.2000. Age-structure, growth and reproduction of the introduced pumpkinseed (Lepomis gibbosa, L. 1758) in a tributary of the Guadalquivir River (southern Spain). Limnetica 19:21–29.
• Karpouzi V.S., Stergiou K.I. 2003. The relationships between mouth size and shape and body length for 18 species of marine fishes and their trophic implications. Journal of Fish Biology 62: 1353–1365.
• Koutrakis E.T., Tsikliras A.C. 2003. Length–weight relationships of fishes from three northern Aegean estuarine systems (Greece). Journal of Applied Ichthyology 19: 258–260.
• Krug H.M. 1989. The azorean blackspot seabream, Pagellus bogaraveo (Brünnich, 1768) (Teleostei: Sparidae): Age and growth. Cybium 13: 347–355.
• Lobo C., Erzini K. 2001. Age and growth of Ray’s bream (Brama brama) from the south of Portugal. Fisheries Research 51: 343–347.
• Magnan P. 1988. Interations between brook charr, Salvelinus fontinalis, and nonsalmonid species: ecological shift, morphological shift, and their impact on zooplankton communities.Canadian Journal of Fisheries and Aquatic Science 38:240–244.
• Magnhagen C., Heibo E. 2001. Gape size allometry in pike reflects variation between lakes in prey availability and relative body depth. Functional Ecology 15: 754–762.
• Massuti E., Morales-Nin B., Moranta J. 2000. Age and growth of blue-mouth, Helicolenus dactylopterus (Osteichthyes: Scorpaenidae), in the western Mediterranean.Fisheries Research 46: 165–176.
• Mayrat A. 1970. Allometrie et taxinomie. Revue de Statistique Appliquée 18: 47–58.
• Mendes B., Fonseca P., Campos A. 2004. Weight–length relationships for 46 fish species of the Portuguese west coast.Journal of Applied Ichthyology 20: 355–361.
• Merella P., Quetglas A., Alemany F., Carbonell A. 1997.Length–weight relationship of fishes and cephalopods from the Balearic Islands (western Mediterranean). Naga,ICLARM Quart 20: 66–68.
• Monteiro L.R., Isidro E.J., Lopes H.D. 1991. Mercury kontent in relation to sex, size, age and growth in two scorpionfish (Helicolenus dactylopterus and Pontinus kuhlii) from Azorean waters. Water, Air and Soil Pollution 56: 359–367.
• Morato T., Afonso P., Lourinho P., Barreiros J.P., Santos R.S.,Nash R.D.M. 2001. Length–weight relationships for 21 coastal fish species of the Azores, north-eastern Atlantic.Fisheries Research 50: 297–302.
• Moutopoulos D.K., Stergiou K.I. 2002. Length–weight and length–length relationships of fish species from the Aegean Sea (Greece). Journal of Applied Ichthyology 18: 200–203.
• Petrakis G., Stergiou K.I. 1995. Weight–length relationships for 33 fish species in Greek waters. Fisheries Research 21:465–469.
• Portela J.M., González M.C., Bellido J.M. 2002. Preliminary results of an exploratory fishing targeting deep-water species of Uruguay. ICES Annual Science Conference,Copenhagen. Session L: 04.
• Ritcher H., Luckstadt C., Focken U., Becker K. 2000. An improved procedure to assess fish condition on the basis of length–weight relationships. Archive of Fishery and Marine Research 48: 255–264.
• Safran P. 1992. Theoretical analysis of the weight–length relationship in fish juveniles. Marine Biology 112: 545–551.
• Santos M.N., Gaspar M.B., Vasconcelos P., Monteiro C.C.2002. Weight–length relationships for 50 selected fish species of the Algarve coast (southern Portugal). Fisheries Research 59: 289–295.
• Smith-Vaniz W.F. 1986. Carangidae. Pp. 815–844.In:Whitehead P.J.P., Bauchot M.L., Hureau J.C., Nielsen J.,Tortonese E. (eds.), Fishes of the north-eastern Atlantic and the Mediterranean (Vol. 2). UNESCO, Paris.
• Sokal R.R., Rohlf F.J. 1987. Introduction to Biostatistics.2 edn. Freeman, New York.
• Stearns S.C.,Crandall R.E. 1984. Plasticity for age and size at sexual maturity: a life-history response to unavoidable stress in fish reproduction. Pp. 13–33. In: Potts G.W., Wootton R.J. (eds.)Fish reproduction: Strategies and tactics. Academic Press,London.
• Stergiou K.I., Moutopoulos D.K. 2001. A review of length–weight relationships of fishes from Greek marine waters. Naga, ICLARM Quart 24: 23–29.
• Svanbäck R. 2004. Ecology and evolution of adaptive morphological variation in fish populations. PhD Thesis, Umea University, Sweden.
• Walker J.A. 1997. Ecological morphology of lacustrine threespine stickleback Gasterosteus aculeatus L.(Gasterosteidae) body shape. Biological Journal of de Linnean Society 61: 3–50.
• Wootton R.J. 1990. Ecology of teleost fishes. Chapman and Hall, London.
• Xiao Y. 1998. What are the units of the parameters in the Power function for the length–weight relationship? Fisheries Research 35: 247–249.