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The reproductive biology of swordfish (Xiphias gladius) in the Strait of Gibraltar

Published online by Cambridge University Press:  24 May 2018

Noureddine Abid ,
Amin Laglaoui ,
Abdelhay Arakrak  and
Mohammed Bakkali
Noureddine Abid*
Affiliation:
National Institute for Fisheries Research (INRH), Regional Centre of Tangier, P.O. Box 5268, Tangier, Morocco
Amin Laglaoui
Affiliation:
Team of Research in Biotechnology and Bimolecular Genius (ERBGB), Faculty of Sciences and Techniques, Abdelmalek Essaadi University, BP. 416-Tangier, Morocco
Abdelhay Arakrak
Affiliation:
Team of Research in Biotechnology and Bimolecular Genius (ERBGB), Faculty of Sciences and Techniques, Abdelmalek Essaadi University, BP. 416-Tangier, Morocco
Mohammed Bakkali
Affiliation:
Team of Research in Biotechnology and Bimolecular Genius (ERBGB), Faculty of Sciences and Techniques, Abdelmalek Essaadi University, BP. 416-Tangier, Morocco
*
Correspondence should be addressed to: N. Abid, National Institute for Fisheries Research (INRH), Regional Centre of Tangier, P.O. Box 5268, Tangier, Morocco email: noureddine.abid65@gmail.com
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Abstract

During the period from April to September for the years 2014–2016, 998 swordfishes caught by the Moroccan artisanal longline fishery in the Strait of Gibraltar were sampled to study the reproduction of this species in this mixing area between the Mediterranean Sea and the North Atlantic. The results showed that the sex ratio is slightly in favour of males for sizes smaller than 130 cm LJFL (Lower jaw-fork length), whereas females are more numerous in sizes larger than 140 cm LJFL. Fifty per cent of females were estimated to be mature at 170 cm LJFL, while for males, the size at first maturity was estimated to be 95 cm LJFL. The swordfish spawn from June to September, probably in the Mediterranean Sea. The findings of this study suggest that the reproductive characteristics of swordfish caught in the Strait of Gibraltar are similar to those of the Mediterranean swordfish, and a high mixing rate between the Mediterranean and the North Atlantic stocks occurs in the study area.

Keywords

swordfishstrait of Gibraltarsex-ratio by sizesize at first maturityspawning periodmixing
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 99 , Issue 3 , May 2019 , pp. 649 - 659
Copyright
Copyright © Marine Biological Association of the United Kingdom 2018 

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References

REFERENCES

Abdellaoui, B., Berraho, A., Falcini, F., Santoleri, J.R., Sammartino, M., Pisano, A., Idrissi, M.H. and Hilm, K. (2017) Assessing the impact of temperature and chlorophyll variations on the fluctuations of sardine abundance in Al-Hoceima (South Alboran Sea). Journal of Marine Science: Research & Development 7, 1–11.Google Scholar
Abid, N., Bakkali, M., Tserpes, G. and Idrissi, M. (2013) Swordfish growth pattern in the strait of Gibraltar; implications for mixing among Atlantic and Mediterranean stocks. Journal of Mediterranean Marine Science 15, 135–144.Google Scholar
Aliçli, T.Z., Oray, I.K., Karakulak, F.S. and Kahraman, A.E. (2012) Age, sex ratio, length-weight relationships and reproductive biology of Mediterranean swordfish, Xiphias gladius L., 1758, in the eastern Mediterranean. African Journal of Biotechnology 11, 3673–3680.Google Scholar
ICCAT (2014) Report of the Standing Committee of Research and Statistics. International Commission for the Conservation of Atlantic Tunas, report for biennial period, 2014–15. Part I (2014) – Vol. 2.Google Scholar
Arocha, F. and Lee, D.W. (1993) Preliminary observations on sex ratio and maturity stages of the swordfish, Xiphias gladius, in the Northwest Atlantic. Collective Volume of Scientific papers. ICCAT 40, 425–432.Google Scholar
Arocha, F. and Lee, D.W. (1996) Maturity at size, reproductive seasonality, spawning frequency, fecundity and sex ratio in swordfish from the Northwest Atlantic. Collective Volume of Scientific papers. ICCAT 45, 350–357.Google Scholar
Beardsley, J.L. (1978) Report of the swordfish workshop held at the Miami Laboratory Southeast Fisheries Center, National Marine Fisheries Services Miami Florida. Collective Volume of Scientific papers. ICCAT 7, 149–158.Google Scholar
Berkeley, S.A. and Houde, E.D. (1983) Age determination of broadbill swordfish, Xiphias gladius, from the Straits of Florida, using anal fin spine sections. U.S. Department of Commerce, NOAA, Technical Report. NMFS, 8, pp. 137–143.Google Scholar
Cortes, G.B. and Mejuto, J. (1988) Premerosdatos sobre la biología de la reproduccióndelpez espada (Xiphias gladius) de las areas 35–45 N, 10-10W (Bil-94). Collective Volume of Scientific papers. ICCAT 27, 164–177.Google Scholar
De la Serna, J.M. and Alot, E. (1990) Considerationes relativos a los desplazamientos effectuados por el pez espada (Xiphias gladius) en el area del estrecho de Gibraltar y otras observaciones relacionados con biologia de la reproduccion. Collective Volume of Scientific papers. ICCAT 32, 353–359.Google Scholar
De la Serna, J.M., Alot, E. and Godoy, M.D. (1992a) Analisis preliminar de la madurez sexual del pez espada (Xiphias gladius) en el area Atlantica proxima al estrecho de Gibraltar. Collective Volume of Scientific papers. ICCAT 39, 522–537.Google Scholar
De la Serna, J.M., Alot, E. and Mejuto, J. (1992b) Analysis preliminar del sex ratio por clase de talla delpez espada (Xiphias gladius) en el area atlantica proxima al estrecho de Gibraltar. Collective Volume of Scientific papers. ICCAT 39, 514–521.Google Scholar
De la Serna, J.M., Ortiz De Urbina, J.M. and Macias, D. (1996)s Observations on sex-ratio, maturity and fecundity by length class for swordfish (Xiphias gladius) captured with surface longline in the western Mediterranean. Collective Volume of Scientific papers. ICCAT 45, 115–139.Google Scholar
De Metrio, G. (1995) Characterization of large pelagic stocks in the Mediterranean. EEC project XIV/MED/91-102. Description of the project and synthesis of the research on swordfish. Collective Volume of Scientific papers. ICCAT 44, 318–329.Google Scholar
De Metrio, G., Megalofonou, P., Tselas, S. and Tsimenides, N. (1989) Fishery and biology of the swordfish (Xiphias gladius, L. 1758) in Greek waters. FAO rapport sur les pêches no. 412, pp. 135–145.Google Scholar
El Hannach, A. (1987) Données biologiques et écologiques sur l'espadon (Xiphias gladius) L.1758 à partir de la pêcherie marocaine dans le détroit de Gibraltar. PhD thesis. Ecole Nationale Supérieure d'Agriculture, Rennes, France.Google Scholar
Hoey, J. (1991) Sex ratio for western north Atlantic swordfish. Collective Volume of Scientific papers. ICCAT 35, 429–436.Google Scholar
Hunter, J.R., Macewicz, B. and Sibert, J.R. (1986) The spawning frequency of skipjack tuna, Katsuwonus pelamis, from the South Pacific. Fishery Bulletin 84, 895–903.Google Scholar
ICCAT (2006–2016) ICCAT Manual. International Commission for the Conservation of Atlantic Tuna. ICCAT Publications online. Updated 2016.Google Scholar
ICCAT (2014) Report of the Standing Committee of Research and Statistics. International Commission for the Conservation of Atlantic Tunas, report for biennial period, 2014–15. Part I (2014) – Vol. 2.Google Scholar
Idrissi, M. and Abid, N. (2006) Situation de la pêcherie de l'espadon (Xiphias gladius) des côtes marocaines. Collective Volume of Scientific papers. ICCAT 59, 973–978.Google Scholar
INRH (2014) Synthèse océanographique 2014, Travaux techniques et scientifiques, 21 pp.Google Scholar
Kume, S. and Joseph, J. (1969) Size composition and sexual maturity of gill fish caught by the Japanese longline fishery in the Pacific Ocean east of 130 degrees west. Bulletin of Far Seas Fisheries Research Laboratory no. 2.Google Scholar
Macías, D., Hattour, A., De la Serna, J.M., Gómez-Vives, M.J. and Godoy, D. (2005) Reproductive characteristics of swordfish (Xiphias gladius) caught in the south-western Mediterranean during 2003. Collective Volume of Scientific papers. ICCAT 58, 454–469.Google Scholar
McCullagh, P. and Nelder, J.A. (1989) Generalized linear models, 2nd edition. London: Chapman & Hall.Google Scholar
Mejuto, J. and Cortes, B.G. (2003a) A description of a possible spawning area of the swordfish (Xiphias gladius) in the tropical northwest Atlantic. Collective Volume of Scientific papers. ICCAT 55, 1449–1458.Google Scholar
Mejuto, J. and Cortes, B.G. (2003b) Size segregation, sex ratios patterns of the swordfish (Xiphias gladius) caught by the Spanish surface longline fleet in areas out of the Atlantic and methodological discussion on gonadal indices. Collective Volume of Scientific papers. ICCAT 55, 1459–1475.Google Scholar
Mejuto, J. and Cortés, B.G. (2014) Reproductive activity of swordfish Xiphias gladius, in the Atlantic Ocean inferred on the basis of macroscopic indicators. Revista de Biología Marina y Oceanografía 49, 427–447.Google Scholar
Mejuto, J., De la Serna, J.M. and Garcia, B. (1998) Some considerations on the spatial and temporal variability in the sex ratio at size of the swordfish (Xiphias gladius). Collective Volume of Scientific papers. ICCAT 48, 205–215.Google Scholar
OrsiRelino, L., Palandri, G., Garibaldi, F., Cima, C., Relini, M. and Torchia, G. (1999) Biological parameters of the Mediterranean swordfish derived from observations in the Ligurian Sea. Collective Volume of Scientific papers. ICCAT 49, 397–406.Google Scholar
Poisson, F. and Fauvel, C. (2009) Reproductive dynamics of swordfish (Xiphias gladius) in the southwestern Indian Ocean (Reunion Island). Part 1: oocyte development, sexual maturity and spawning. Aquatic Living Resources 22, 45–58.Google Scholar
Rey, J.C. (1988) Comentarios sobre las areas de reproduccion del pez espada, (Xiphias gladius) en el Atlantico y Mediterraneo. Collective Volume of Scientific papers. ICCAT 27, 180–193.Google Scholar
Srour, A., Abid, N., De la Serna, J.M. and De Urbina, J.M.O. (2004) Preliminary analysis of the spatial and temporal variability in the sex ratio at size of the swordfish (Xiphias gladius) caught by the Moroccan drift net fishery. Collective Volume of Scientific papers. ICCAT 56, 921–924.Google Scholar
Suzuki, Z. and Miyabe, N. (1991) Preliminary study on reproducing observed sex ratio by size for Atlantic swordfish. Collective Volume of Scientific papers. ICCAT 35, 459–464.Google Scholar
Taylor, R.G. and Murphy, M.D. (1992) Reproductive biology of the swordfish (Xiphias gladius) in the Straits of Florida and adjacent waters. Fishery Bulletin US 90, 809–816.Google Scholar
Tserpes, G., Peristeraki, P. and Somarakis, S. (2001) On the reproduction of swordfish (Xiphias gladius) in the eastern Mediterranean. Collective Volume of Scientific papers. ICCAT 52, 740–744.Google Scholar
Tserpes, G., Peristeraki, P. and Valavanis, V. (2008) Distribution of swordfish in the eastern Mediterranean, in relation to environmental factors and the species biology. Hydrobiologia 612, 241–250.Google Scholar
Tserpes, G. and Tsimenides, N. (1995) Determination of age and growth of swordfish, Xiphias gladius L., 1758, in the eastern Mediterranean using anal-end spines. Fishery Bulletin 93, 594–602.Google Scholar
Wang, S.P., Sun, C.L. and Yeh, S.Z. (2003) Sex ratios and sexual maturity of swordfish (Xiphias gladius L.) in the waters of Taiwan. Journal of Zoological Studies 42, 529–539.Google Scholar
West, G. (1990) Methods of assessing ovarian development in fishes: a review. Australian Journal of Marine and Freshwater Research 41, 199–222.Google Scholar