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Length–weight relationships in syngnathid species from Tunisian waters (central Mediterranean)

Published online by Cambridge University Press:  19 May 2011

M.M. Ben Amor ,
M. Ben Salem ,
C. Reynaud  and
C. Capapé
M.M. Ben Amor*
Affiliation:
National Institute of Sea Sciences and Technologies (INSTM), Fishing Port 2060, La Goulette, Tunisia Unité de Recherches Zoologie et Ecologie des Milieux aquatiques, Faculté des Sciences of Tunis, University Tunis El Manar, 2092 Tunis, Tunisia
M. Ben Salem
Affiliation:
Unité de Recherches Zoologie et Ecologie des Milieux aquatiques, Faculté des Sciences of Tunis, University Tunis El Manar, 2092 Tunis, Tunisia
C. Reynaud
Affiliation:
Laboratoire Interdisciplinaire de Recherche sur la Didactique, l'Éducation et la Formation, E.A. 3749, case 77, Université Montpellier II, Sciences et Techniques du Languedoc, 34 095 Montpellier cedex 5, France
C. Capapé
Affiliation:
Laboratoire Interdisciplinaire de Recherche sur la Didactique, l'Éducation et la Formation, E.A. 3749, case 77, Université Montpellier II, Sciences et Techniques du Languedoc, 34 095 Montpellier cedex 5, France
*
Correspondence should be addressed to: M.M. Ben Amor, National Institute of Sea Sciences and Technologies (INSTM), Fishing Port 2060, La Goulette, Tunisia email: benamor7@yahoo.fr
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Abstract

Length–weight relationships of four pipefish and two seahorse species from Tunisian waters are presented in this paper: the straight-nosed pipefish Nerophis ophidion, the black-striped piperfish Syngnathus abaster, the greater pipefish S. acus, the deep-snouted piperfish S. typhle, the short snouted seahorse Hippocampus hippocampus and the long-snouted seahorse Hippocampus. ramulosus. Overall, 2424 specimens of these six syngnathid species were weighed and measured. The sample size ranged from 14 for N. ophidion to 1773 for H. ramulosus. The values of the slope b in the length–weight relationships (W = aLb) varied between 1.836 (S. typhle) and 5.476 (N. ophidion). Linear regressions of length–weight relationships were significant for all species. We have calculated a positive allometry in weight versus length for N. ophidion, an isometry for H. hippocampus and H. ramulosus and a negative allometry for S. abaster, S. acus and S. typhle.

Keywords

OsteichthyesSyngnathidaelength–weight relationshipTunisian waterscentral Mediterranean

Information

Type
Research Article
Information
Marine Biodiversity Records , Volume 4 , December 2011 , e44
Copyright
Copyright © Marine Biological Association of the United Kingdom 2011

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References

REFERENCES

Beverton, R.J.H. and Holt, S.J. (1996) On the dynamics of exploited fish populations. Fishery Investigation, London, Series 2, 1–533.Google Scholar
Ben Amor, M.M., Ben Salem, M., Ben Souissi, J. and Capapé, C. (2006) Observation on the black-striped pipefish, Syngnathus abaster Risso, 1810 (Osteichthyes: Syngnathidae) from the Tunisian waters (central Mediterranean). Annales, Series Historia Naturalis 16, 193–198.Google Scholar
Ben Amor, M.M., Ben Souissi, J., Ben Salem, M. and Capapé, C. (2007a) Confirmed occurrence of the straight-nosed pipefish, Nerophis ophidion (Syngnathidae) in southern Tunisia (central Mediterranean). Cybium 31, 483–484.Google Scholar
Ben Amor, M.M., Ben Salem, M., Ben Souissi, J. and Capapé, C. (2007b) On the occurrence of the deep-snouted pipefish Syngnathus typhle Linnaeus, 1758 (Osteichthyes: Syngnathidae) in the Tunisian waters (Central Mediterranean). Acta Adriatica 48, 15–23.Google Scholar
Ben Amor, M.M., Ben Salem, M., Ben Souissi, J. and Capapé, C. (2008a) The syngnathid species (Osteichthyes) from Tunisian waters (Central Mediterranean): a survey. Annales, Series Historia Naturalis 18, 1–10.Google Scholar
Ben Amor, M.M., Ben Salem, M., Ben Souissi, J. and Capapé, C. (2008b) Occurrence of the Nilsson's pipefish Syngnathus rostellatus (Osteichthyes, Syngnathidae) in the Gulf of Tunis (Central Mediterranean). Vie et Milieu 58, 1–4.Google Scholar
Bradaï, M.N., Quignard, J.-P., Bouaïn, A., Jarboui, O., Ouannes-Ghorbel, A., Ben Abdallah, L., Zaouali, J. and Ben Salem, S. (2004) Ichtyofaune autochtone et exotique des côtes tunisiennes: recensement et biogéographie. Cybium 28, 315–328.Google Scholar
Coull, K.A., Jerym, A.S., Newton, A.W., Henderson, G.I., and Hall, W.B. (1989) Length/weight relationships for 88 species of fish encountered in the North Atlantic. Scottish Fisheries Research Report 43, 80.Google Scholar
Dawson, C.E. (1982) Fishes of western North Atlantic. Part 8. Order Gasterosteiformes, Suborder Syngnathoidei, Syngnathidae. Sears Foundation for Marine Research, Memoir 1, 1–197.Google Scholar
Dawson, C.E. (1986) Syngnathidae. In Whitehead, P.J.P., Bauchot, M.-L., Hureau, J.-C., Nielsen, J. and Tortonese, E. (eds) Fishes of the north-western Atlantic and the Mediterranean. Volume 1. Paris: Unesco, pp. 628–639.Google Scholar
Gurkan, Ş. (2004) Investigations on the ecomorphologic characteristics of the pipefish (Familia: Syngathidae) distributing in the Çomati Lagoon ( I̊zmir Bay). PhD thesis. Egee University, Department of Hydrobiology, I̊zmir, 215 pp.Google Scholar
Gurkan, S. and Taskavak, E. (2007) Length–weight relationships for syngnathid fishes of Aegean Sea, Turkey. Belgian Journal of Zoology 137, 219–222.Google Scholar
Koutrakis, E.T. and Tsikliras, A.C. (2003) Length–weight relationships of fishes from three northern Aegean estuarine systems (Greece). Journal of Applied Ichthyology 19, 258–260.CrossRefGoogle Scholar
Lourie, S.A., Vincent, A.C.J. and Hall, H.J. (1999) Seahorses: an identification guide to the world's species and their conservation. London: Project Seahorse, 214 pp.Google Scholar
Ozaydin, O. and Taşkavak, E. (2006) Length–weight relationships for 47 fish species from I̊zmir Bay (Aegean Sea, Turkey). Acta Adriatica 47, 211–216.Google Scholar
Ricker, W.E. (1973) Linear regression in fishery research. Journal of the Fisheries Research Board of Canada 30, 409–434.CrossRefGoogle Scholar
Spiegel, M.R. (1991) Théorie et applications de la statistique. Paris: McGraw-Hill.Google Scholar
Tesh, F.W. (1971) Age and growth. In Ricke, W.E. (ed.) Methods for assessment of fish production in fresh waters. Oxford: Blackwell Scientific Publications, pp. 98–130.Google Scholar
Valle, C., Bayle, J.T. and Ramos, A.A. (2003) Weight-length relationships for selected fish species of the western Mediterranean Sea. Journal of Applied Ichthyology, 19, 261–262.CrossRefGoogle Scholar
Wootton, R.J. (1998) Ecology of teleost fishes. Dordrecht, The Netherlands: Kluwer Academic Publishers.Google Scholar
Worthmann, H. (1975) Das Makrobenthos und Fischbesiedlung in verschiedenen Flachwassergebieten der Kieler Bucht (Westl Ostsee). Kiel University, 141 pp. Thesis.Google Scholar