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Age and growth of the bigeye thresher shark, Alopias superciliosus, from the pelagic longline fisheries in the tropical northeastern Atlantic Ocean, determined by vertebral band counts

Published online by Cambridge University Press:  01 December 2011

Joana Fernandez-Carvalho ,
Rui Coelho ,
Karim Erzini  and
Miguel Neves Santos
Joana Fernandez-Carvalho*
Affiliation:
Instituto Nacional dos Recursos Biológicos IP/IPIMAR, Av. 5 Outubro s/n, 8700-305 Olhão, Portugal
Rui Coelho
Affiliation:
Instituto Nacional dos Recursos Biológicos IP/IPIMAR, Av. 5 Outubro s/n, 8700-305 Olhão, Portugal Centro de Ciências do Mar (CCMAR), Universidade do Algarve, Portugal
Karim Erzini
Affiliation:
Centro de Ciências do Mar (CCMAR), Universidade do Algarve, Portugal
Miguel Neves Santos
Affiliation:
Instituto Nacional dos Recursos Biológicos IP/IPIMAR, Av. 5 Outubro s/n, 8700-305 Olhão, Portugal
*
aCorresponding author: [email protected]
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Abstract

The bigeye thresher, Alopias supercilious,is commonly caught as bycatch in pelagic longline fisheries targetingswordfish. Little information is yet available on the biology ofthis species, however. As part of an ongoing study, observers sentaboard fishing vessels have been collecting set of information thatincludes samples of vertebrae, with the aim of investigating ageand growth of A. supercilious. A total of 117 specimenswere sampled between September 2008 and October 2009 in the tropicalnortheastern Atlantic, with specimens ranging from 101 to 242 cmfork length (FL) (176 to 407 cm total length). The A. supercilious vertebraewere generally difficult to read, mainly because they were poorlycalcified, which is typical of Lamniformes sharks. Preliminary trialswere carried out to determine the most efficient band enhancementtechnique for this species, in which crystal violet section stainingwas found to be the best methodology. Estimated ages in this sampleranged from 2 to 22 years for females and 1 to 17 years for males.A version of the von Bertalanffy growth model (VBGF) re-parameterisedto estimate L0, and a modified VBGF using a fixed L0 were fittedto the data. The Akaike information criterion (AIC) was used tocompare these models. The VBGF produced the best results, with thefollowing parameters: Linf = 293 cm FL, k = 0.06 y–1 and L0 = 111 cmFL for females Linf = 206 cm FL, k = 0.18 y–1 and L0 = 93 cm FLfor males. The estimated growth coefficients confirm that A. supercilious isa slow-growing species, highlighting its vulnerability to fishingpressure. It is therefore urgent to carry out more biological researchto inform fishery managers more adequately and address conservationissues.

Keywords

Age and growthVertebraePelagic longline fisheriesBycatchsharkLamniformesAlopiidaeNE Atlantic Ocean
Type
Research Article
Information
Aquatic Living Resources , Volume 24 , Issue 4 , October 2011 , pp. 359 - 368
Copyright
© EDP Sciences, IFREMER, IRD 2011

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References

Abramoff, M.D., Magalhaes, P.J., Ram, S.J., 2004, Image Processing with Image J. Biophotonics International 11, 36–42.Google Scholar
Ardizzone, D., Cailliet, G.M., Natanson, L.J., Andrews, A.H., Kerr, L.A., Brown, T.A., 2006, Application of bomb radiocarbon chronologies to shortfin mako (Isurus oxyrinchus) age validation. Environ. Biol. Fish. 77, 355–366.CrossRefGoogle Scholar
Bass A.J., D’Aubrey J.D., Kistnasamy N., 1975, Sharks of the east coast of southern Africa, IV. The families Odontaspididae, Scaphanorhynchidae, Isuridae, Cetorhinidae, Alopiidae, Orectolobidae and Rhiniodontidae. Oceanogr. Res. Inst. (Durban) Invest. Rep. No. 39.
Barker, M.J., Schluessel, V., 2005, Managing global shark fisheries: suggestions for prioritizing management strategies. Aquat. Conserv. 15, 325–347.CrossRefGoogle Scholar
Bigelow H.R., Shroeder W.C., 1948, Sharks. In: Parr A.E., Olsen Y.H. (Eds.). Fishes of the western North Atlantic, Part l, New Haven, CT, Mere. Sears Found. Mar. Res. Yale Univ., pp. 59–564.
Buencuerpo, V., Rios, S., Morón, J., 1998, Pelagic sharks associated with the swordfish, Xiphias gladius, fishery in the eastern North Atlantic Ocean and the Strait of Gibraltar. Fish. Bull. 96, 667–685.Google Scholar
Beamish, R.J., Fournier, D.A., 1981, A method for comparing the precision of a set of age determinations. Can. J. Fish. Aquat. Sci. 38, 982–983.CrossRefGoogle Scholar
Cailliet, G.M., Bedford, D.W., 1983, The biology of three pelagic sharks from california waters, and their emerging fisheries: a review. CalCOFI Rep. 24, 57–69.Google Scholar
Cailliet G.M., Martin L.K., Kusher D., Wolf P., Welden B.A., 1983, Techniques for enhancing vertebral bands in age estimation of California elasmobranchs. In: Prince E.D., Pulos L.M. (Eds.). Proc. International workshop on age determination of oceanic pelagic fishes: tunas, billfishes, sharks. NOAA Tech. Rep. NMFS 8, pp. 157–165.
Cailliet, G.M., Smith, W.D., Mollet, H.F., Goldman, K.J., 2006, Age and growth studies of chondrichthyan fishes: the need for consistency in terminology, verification, validation, and growth function fitting. Environ. Biol. Fish. 77, 211–228.CrossRefGoogle Scholar
Campana, S.E., 2001, Accuracy, precision, and quality control in age determination, including a review of the use and abuse of age validation methods. J. Fish Biol. 59, 197–242.CrossRefGoogle Scholar
Cao, D.M, Song, L.M., Zhang, Yu, Lu, K.K., Hu, Z.X., 2011, Environmental preferences of Alopias superciliosus and Alopias vulpinus in waters near Marshall Islands. N. Z. J. Mar. Freshw. 45, 103–119.CrossRefGoogle Scholar
Chang, W.Y.B., 1982, A statistical method for evaluating the reproducibility of age determination. Can. J. Fish. Aquat. Sci. 39, 1208–1210.CrossRefGoogle Scholar
Cerrato, R. M., 1990, Interpretable statistical tests for growth comparisons using parameters in the von Bertalanffy equation. Can. J. Fish. Aquat. Sci. 47, 1416–1426.CrossRefGoogle Scholar
Chen, C.T., Liu, K.M., Chang, Y.C., 1997, Reproductive biology of the bigeye thresher shark, Alopias superciliosus (Lowe, 1839) (Chondrichthyes: Alopiidae), in the northwestern Pacific. Ichthyol. Res. 44, 227–235.CrossRefGoogle Scholar
Chen, P., Yuan, W., 2006, Demographic analysis based on the growth parameter of sharks. Fish. Res. 78, 374–379.CrossRefGoogle Scholar
Coelho, R., Erzini, K., 2002, Age and growth of the undulate ray, Raja undulata, in the Algarve (Southern Portugal). J. Mar. Biol. Assoc. UK 82, 987–990.CrossRefGoogle Scholar
Coelho, R., Erzini, K., 2006, Reproductive aspects of the undulate ray, Raja undulata, from the south coast of Portugal. Fish. Res. 81, 80–85.CrossRefGoogle Scholar
Compagno L.J.V., 2001, Sharks of the world. An annotated and illustrated catalogue of shark species known to date: bullhead, mackerel and carpet sharks (Heterodontiformes, Lamniformes and Orectolobiformes). Rome, FAO.
Cortés, E., Arocha, F., Beerkircher, L., Carvalho, F, Domingo, A., Heupel, M., Holtzhausen, H., Santos, M.N., Ribera, M., Simpfendorfer, C., 2010, Ecological risk assessment of pelagic sharks caught in Atlantic pelagic longline fisheries. Aquat. Living Resour. 23, 25–34.CrossRefGoogle Scholar
Gelsleichter, J., Piercy, A., Musick, J.A., 1998, Evaluation of copper, iron, and lead substitution techniques in elasmobranch age determination. J. Fish Biol. 53, 465–470.CrossRefGoogle Scholar
Gilmore, R.G., 1993, Reproductive biology of lamnoid sharks. Environ. Biol. Fishes 38, 95–114.CrossRefGoogle Scholar
Goldman K.J., 2004, Age and growth of elasmobranch fishes. In: Musick J.A., Bonfil R. (Eds.). Elasmobranch Fisheries Management Techniques, Singapore, APEC Secretariat, pp. 97–132.
Gruber, S.H., Compagno, L.J.V., 1981, Taxonomic status and biology of the bigeye thresher Alopias superciliosus. US Fish. Bull. 79, 617–40.Google Scholar
Hoening, J.M., Morgan, M.J., Brown, C.A., 1995, Analyzing differences between two age determination methods by tests of symmetry. Can. J. Fish. Aquat. Sci. 52, 364–368.CrossRefGoogle Scholar
ICCAT, 2008, Recommendation by ICCAT on the conservation of bigeye thresher sharks (Alopias superciliosus) caught in association with fisheries managed by ICCAT. ICCAT Recommendation 2008-07. Online document. http://www.iccat.es/Documents/Recs/compendiopdf-e/2008-07-e.pdf
IUCN, 2009, IUCN red list of threatened species. Online document. www.iucnredlist.org.
Johnson, A.G., 1979, A simple method for staining the centra of teleost vertebrae. NE Gulf Sci. 3, 113–115.Google Scholar
Jones, B.C., Green, G.H., 1977, Age determination of an elasmobranch (Squalus acanthias) by x-ray spectrometry. J. Fish. Res. Board Can. 34, 44–48.CrossRefGoogle Scholar
Katsanevakis, S., 2006, Modelling fish growth: Model selection, multi-model inference and model selection uncertainty. Fish. Res. 81, 229–235.CrossRefGoogle Scholar
Kimura, D.K., 1980, Likelihood methods for the von Bertalanffy growth curve. Fish. Bull. 77, 765–773.Google Scholar
LaMarca, M.S., 1966, A simple technique for demonstrating calcified annuli in the vertebrae of large elasmobranchs. Copeia 1966, 351–352.CrossRefGoogle Scholar
Liu, K.M., Chiang, P.J., Chen, C.T, 1998, Age and growth estimates of the bigeye thresher shark, Alopias superciliosus, in northeastern Taiwan waters. Fish. Bull. 96, 482–491.Google Scholar
Liu K.M., Chen C.T., Liao T.H., Joung S.J., 1999, Age, growth, and reproduction of the pelagic thresher shark, Alopias pelagicus in the Northwestern Pacific. Copeia 1999,68‐74.
Megalofonou, P., Yannopoulos, C., Damalas, D., De Metrio, G., Deflorio, M., de la Serna, J.M., Macias, D., 2005, Incidental catch and estimated discards of pelagic sharks from the swordfish and tuna fisheries in the Mediterranean Sea. Fish. Bull. 103, 620–634 Google Scholar
Moreno, J.A., Morón, J., 1992, Reproductive biology of the bigeye thresher shark, Alopias superciliosus (Lowe, 1839). Aust. J. Mar. Freshw. Res. 43, 77–86.CrossRefGoogle Scholar
Nakano, H., Matsunaga, H., Okamoto, H., Okazaki, M., 2003, Acoustic tracking of bigeye thresher shark Alopias superciliosus in the eastern Pacific Ocean. Mar. Ecol. Prog. Ser. 265, 255–261.CrossRefGoogle Scholar
Natanson, L.J., Cailliet, G.M., 1990, Vertebral growth zone deposition in angel sharks. Copeia 1990, 1133–1145.CrossRefGoogle Scholar
Natanson, L.J., Mello, J.J., Campana, S.E., 2002, Validated age and growth of the porbeagle shark (Lamna nasus) in the western North Atlantic Ocean. Fish. Bull. 100, 266–278.Google Scholar
Natanson, L.J., Kohler, N.E., Ardizzone, D., Cailliet, G.M., Wintner, S.P., Mollet, H.F., 2006, Validated age and growth estimates for the shortfin mako, Isurus oxyrinchus, in the North Atlantic Ocean. Environ. Biol. Fish. 77, 367–383.CrossRefGoogle Scholar
Neer, J.A., Cailliet, G.M., 2001, Aspects of the life history of the Pacific electric ray, Torpedo californica (Ayers). Copeia 2001, 842–847.CrossRefGoogle Scholar
R Development Core Team, 2010, R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. http://www.R-project.org.
Shotton R., 1999, Case studies of the management of elasmobranch fisheries. Rome, FAO.
Simpfendorfer, C.A., Hueter, R.E., Bergman, U., Connett, S.M.H., 2002, Results of a fishery-independent survey for pelagic sharks in the Western North Atlantic, 1977–1994. Fish. Res. 55, 175–192.CrossRefGoogle Scholar
Smith, S.E., Au, D.W., Show, C., 1998, Intrinsic rebound potentials of 26 species of Pacific sharks. Mar. Freshw. Res. 49, 663–678.CrossRefGoogle Scholar
Stevens, J.D., Bonfil, R., Dulvy, N.K., Walker, P.A., 2000, The effects of fishing on sharks, rays, and chimaeras (Chondrichthyans), and the implications for marine ecosystems. ICES J. Mar. Sci. 57, 476–494. CrossRefGoogle Scholar
Stevens, J.D., Bradford, R.W., West, G.J., 2010, Satellite tagging of blue sharks (Prionace glauca) and other pelagic sharks off eastern Australia: depth behaviour, temperature experience and movements. Mar. Biol. 157, 575–591.CrossRefGoogle Scholar
Stillwell, C.E., Casey, J.G., 1976, Observations on the bigeye thresher shark, Alopias superciliosus, in the western north Atlantic. Fish. Bull. 74, 221–225.Google Scholar
Weng, K.C., Block, B.A., 2004, Diel vertical migration of the bigeye thresher shark (Alopias superciliosus), a species possessing orbital retia mirabilia. Fish. Bull. 102, 221–229.Google Scholar
Wintner, S.P., Cliff, G., 1999, Age and growth determination of the white shark, Carcharodon carcharias, from the east coast of South Africa. Fish. Bull. 97, 153–169.Google Scholar