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Habitat preferences of the sicklefin lemon shark (Negaprion acutidens) in the Dongsha Atoll National Park: a preliminary assessment

Yu-Yun Chen, Wen-Chien Huang

Published on: 11 June 2024

Page: 275 - 280

DOI: 10.6165/tai.2024.69.275

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    Abstract

    Collecting basic biological information of a species is crucial for developing effective conservation strategies and ensuring its sustainable management. Dongsha Atoll is considered a vital, possibly the primary, nursery ground for the endangered sicklefin lemon shark (Negaprion acutidens) in the South China Sea. In this study, we employed acoustic telemetry to investigate the habitat utilization and preferences of N. acutidens at different life stages in Dongsha Atoll. A total of 44 sharks, including 16 juveniles, 14 small sharks, 11 sub-adults, and three adults, were tagged and tracked for 1–848 days. Results of this preliminary assessment revealed that: (1) juvenile and small sharks commonly utilize the shallow seagrass flats around Dongsha Island, with juveniles spending a significant amount of time in the embedded lagoon; (2) sharks of all sizes utilize the lagoon mouth area, especially small and sub-adult sharks; (3) adult sharks exhibit a broader activity range within the atoll and are unlikely to enter the embedded lagoon. We hypothesize that the embedded shallow lagoon of Dongsha Island serves as a shelter area for newborns and juveniles, while the lagoon mouth may function as an important hunting ground for small and sub-adult sharks. Adult sharks may have the broadest home range around the atoll and close to Dongsha Island during the breeding season. This study underscores the importance of considering habitat shifts and changes in home range size throughout the ontogeny of N. acutidens when planning effective spatial management strategies.

    Keyword: Acoustic telemetry, elasmobranch, habitat utilization, requiem shark, site fidelity

    Literature Cited

    Brown, C.A., Gruber, S.H. 1988 Age assessment of the lemon shark, Negaprion brevirostris, using tetracycline validated vertebral centra. Copeia 1988(3): 747–753.
    DOI: 10.2307/1445397View Article Google Scholar

    Carlson, J., Charvet, P., Ba, A., Bizzarro, J., Derrick, D., Espinoza, M., Doherty, P., Chartrain, E., Dia, M., Leurs, G.H.L., Metcalfe, K., Pires, J.D., Pacoureau, N., Porri?os, G., Dulvy, N.K. 2021 Negaprion brevirostris. The IUCN Red List of Threatened Species 2021: e.T39380A2915472.

    Chang, C.W., Huang, C.S., Wang, S.I. 2012 Species composition and sizes of fish in the lagoon of dongsha island (Pratas Island), Dongsha Atoll of the South China sea. Platax 2012: 25–32.
    DOI: 10.29926/PLATAX.201212.0002View Article Google Scholar

    Chapman, D.D., Babcock, E.A., Gruber, S.H., Dibattista, J.D., Franks, B.R., Kessel, S.A., Guttridge, T., Pikitch, E.K., Feldheim, K.A. 2009 Long?term natal site?fidelity by immature lemon sharks (Negaprion brevirostris) at a subtropical island. Mol. Ecol. 18(16): 3500–3507.
    DOI: 10.1111/j.1365-294X.2009.04289.xView Article Google Scholar

    Ferretti, F., Worm, B., Britten, G.L., Heithaus, M.R., Lotze, H.K. 2010 Patterns and ecosystem consequences of shark declines in the ocean. Ecol. Lett. 13(8): 1055–1071.
    DOI: 10.1111/j.1461-0248.2010.01489.xView Article Google Scholar

    Filmalter, J.D., Dagorn, L., Cowley, P.D. 2013 Spatial behaviour and site fidelity of the sicklefin lemon shark Negaprion acutidens in a remote Indian Ocean atoll. Mar. Biol. 160(9): 2425–2436.
    DOI: 10.1007/s00227-013-2237-1View Article Google Scholar

    Hodgkiss, R.D., Grant, A., McClelland, J.H.R., Quatre, R., Rademakers, B., Sanchez, C., Mason-Parker, C. 2017 Population structure of the sicklefin lemon shark Negaprion acutidens within the Curieuse Marine National Park, Seychelles. Afr. J. Mar. Sci. 39(2): 225–232.
    DOI: 10.2989/1814232X.2017.1333453View Article Google Scholar

    Liu, S.Y.V., Chen, Y.Y., Cheng, C. 2023 Genetic structure and relatedness of juvenile sicklefin lemon shark (Negaprion acutidens) at Dongsha Island. Sci. Rep. 13(1): 988.
    DOI: 10.1038/s41598-023-28186-yView Article Google Scholar

    Morrissey, J.F., Gruber, S.H. 1993 Habitat selection by juvenile lemon sharks, Negaprion brevirostris. Environ. Biol. Fishes 38(4): 311–319.
    DOI: 10.1007/BF00007524View Article Google Scholar

    Mourier, J., Buray, N., Schultz, J.K., Clua, E., Planes, S. 2013 Genetic network and breeding patterns of a sicklefin lemon shark (Negaprion acutidens) population in the Society Islands, French Polynesia. PLoS One 8(8): e73899.
    DOI: 10.1371/journal.pone.0073899View Article Google Scholar

    Newman, S.P., Handy, R.D., Gruber, S.H. 2010 Diet and prey preference of juvenile lemon sharks Negaprion brevirostris. Mar. Ecol. Prog. Ser. 398: 221–234.
    DOI: 10.3354/meps08334View Article Google Scholar

    Pillans, R.D., Rochester, W., Babcock, R.C., Thomson, D.P., Haywood, M.D., Vanderklift, M.A. 2021 Long-term acoustic monitoring reveals site fidelity, reproductive migrations, and sex specific differences in habitat use and migratory timing in a large coastal shark (Negaprion acutidens). Front. Mar. Sci. 8: 616633.
    DOI: 10.3389/fmars.2021.616633View Article Google Scholar

    Poynton, S.L., Campbell, T.W., Palm, H.W. 1997 Skin lesions in captive lemon sharks Negaprion brevirostris (Carcharhinidae) associated with the monogenean Neodermophthirius harkemai Price, 1963 (Microbothriidae). Dis. Aquat. Organ. 31(1): 29–33.
    DOI: 10.3354/dao031029View Article Google Scholar

    Sabalones, J., Walters, H., Rueda, C.A.B. 2004 Learning and behavioral enrichment in elasmobranchs. In: Smith, M. et al. (eds.), The Elasmobranch Husbandry Manual: Captive Care of Sharks, Rays and Their Relatives, Chapter 13: 169–182. Ohio Biological Survey, Columbus, U.S.A.
    DOI: 10.1201/9780203491317.ch10View Article Google Scholar

    Schultz, J.K., Feldheim, K.A., Gruber, S.H., Ashley, M.V., McGovern, T.M., Bowen, B.W. 2008 Global phylogeography and seascape genetics of the lemon sharks (genus Negaprion). Mol. Ecol. 17(24): 5336–5348.
    DOI: 10.1111/j.1365-294X.2008.04000.xView Article Google Scholar

    Simpfendorfer, C., Derrick, D., Yuneni, R.R., Maung, A., Utzurrum, J.A.T., Seyha, L., Haque, A.B., Fahmi, Bin Ali, A., Bineesh, K.K., Fernando, D., Tanay, D., Vo, V.Q., Gutteridge, A.N. 2021 Negaprion acutidens. The IUCN Red List of Threatened Species 2021: e.T41836A173435545.

    Stevens, J.D. 1984 Life-history and ecology of sharks at Aldabra Atoll, Indian Ocean. Proc. Royal Soc. B 222(1226): 79–106.
    DOI: 10.1098/rspb.1984.0050View Article Google 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(3): 476–494.
    DOI: 10.1006/jmsc.2000.0724View Article Google Scholar

    Weideli, O.C., Daly, R., Peel, L.R., Heithaus, M.R., Shivji, M.S., Planes, S., Papastamatiou, Y.P. 2023 Elucidating the role of competition in driving spatial and trophic niche patterns in sympatric juvenile sharks. Oecologia 201(3): 673–688.
    DOI: 10.1007/s00442-023-05355-4View Article Google Scholar

    White, W.T., Platell, M.E., Potter, I.C. 2004 Comparisons between the diets of four abundant species of elasmobranchs in a subtropical embayment: implications for resource partitioning. Mar. Biol. 144(3): 439–448.
    DOI: 10.1007/s00227-003-1218-1View Article Google Scholar

    Yu, D.C.Y., Chiau, W.Y., Lu, H.J. 2022 Effective governance of a remote marine protected area: The case of Dongsha Atoll National Park. Mar. Policy 139: 105013.
    DOI: 10.1016/j.marpol.2022.105013View Article Google Scholar