Sains Malaysiana 46(10)(2017): 1675–1678

http://dx.doi.org/10.17576/jsm-2017-4610-01

First Report of Echthrogaleus denticulatus (Smith 1874) on the Pelagic Thresher Shark (Alopias pelagicus Nakamura 1935) from Indian EEZ of Andaman Sea

(Laporan Pertama Echthrogaleus denticulatus (Smith, 1874) pada Pelagik Yu Ekor Panjang

(Alopias pelagicus Nakamura 1935) dari EEZ India Laut Andaman)

PRADEEP, H.D.^1*, ARUN KUMAR, M.² & SWAPNIL, S.S.¹

¹Fishery Survey of India, Port Blair Zonal Base, Port Blair, Andaman & Nicobar Islands, India

²Department of Ocean Studies and Marine Biology, Pondicherry University, Brookshabad Campus, Post Bag No. 1, Chakkargaon Post, Port Blair- 744112, Andaman Islands, India

Received: 7 May 2016/Accepted: 29 March 2017

ABSTRACT

The present study reports the occurrence of the pandarid parasite, Echthrogaleus denticulatus as an ectoparasite on the pelagic thresher shark (Alopias pelagicus) from the Indian EEZ of Andaman Sea. A total of 36 parasite specimens were found aggregated near the cloacal aperture of eight pelagic thresher sharks caught as bycatch by multifilament tuna longliner MFV Blue Marlin during July 2015 and February 2016 voyages in Andaman and Nicobar waters. This is the first report of ectoparasite from the Indian EEZ of the Andaman Sea.

Keywords: Andaman Sea; ectoparasite; first report; MFV Blue Marlin; shark host

ABSTRAK

Penyelidikan ini melaporkan kewujudan parasit pandarid, Echthrogaleus denticulatus sebagai ektoparasit kepada pelagik yu ekor panjang (Alopias pelagicus) dari EEZ India Laut Andaman. Sejumlah 36 spesimen parasit ditemui terkumpul berhampiran sudut pembukaan pada lapan pelagik yu ekor panjang yang ditangkap sebagai penampan pelbagai filamen tuna MFV Blue Marlin sepanjang pelayaran bulan Julai 2015 dan Februari 2016 di perairan Andaman dan Nicobar. Ini adalah laporan pertama mengenai ektoparasit dari EEZ India Laut Andaman.

Kata kunci: Ektoparasit; hos yu; laporan pertama; Laut Andaman; MFV Blue Marlin

REFERENCES

Anon. 2015. Fisheries in Andaman and Nicobar Islands. Directorate of Fisheries, Andaman and Nicobar Administration, Port Blair.

Asok Kumar, K. 1990. Studies on Copepod Parasites on elasmobranches of Kerala coast. PhD. Thesis, Cochin University of Science and Technology. Cochin, India (Unpublished).

Bassett-Smith, P.W. 1899. A systematic description of parasitic Copepoda found on fishes with an enumeration of the known species. Proc. Zool. Soc. Lond. pp. 438-507.

Benz, G.W. 1992. How Pandarus species (Copepoda: Pandaridae) attach to their shark hosts. J. Parasitol. 78(2): 368-370.

Cressey, R.F. 1967. Revision of the family Pandaridae (Copepoda: Caligoida). Proc. U.S. Natl. Mus. 121: 1-133. doi: 10.5479/ si.00963801.121-3570.1.

Dippenaar, S.M. 2004. Reported siphonostomatoid copepods parasitic on marine fishes of Southern Africa. Crustaceana 77(11): 1281-1328.

Henderson, A.C., Reeve, A.J. & Tang, D. 2013. Parasitic copepods from some northern Indian Ocean elasmobranchs. Mar. Biodivers. 6: e44. DOI: 10.1017/S1755267213000195.

Hewitt, G.C. 1979. Eight species of parasitic Copepoda on a white shark. N. Z. J. Mar. Freshwater Res. 13(1): 171-171.

Hewitt, G.C. 1967. Echthrogaleus denticulatus smith (copepoda, pandaridae) in New Zealand waters. N. Z. J. Mar. Freshwater Res. 1(3): 341-351: doi:10.1080/00288330.1967.9515210.

Humes, A.G. & Gooding, R.U. 1964. A method for studying the external anatomy of copepods. Crustaceana 6: 238-240.

Izawa, K. 2010. Redescription of eight species of parasitic copepods (Siphonostomatoida, Pandaridae) infecting Japanese Elasmobranchs. Crustaceana 83: 313-341.

Kar, A.B., Govindaraj, K., Prasad, G.V.A. & Ramalingam, L. 2011. Bycatch in tuna longline fishery in the Indian EEZ around Andaman and Nicobar Islands. IOTC-2011- WPEB07-19.

McKenzie, K. & Abaunza, P. 1998. Parasites as biological tags for stock discrimination of marine fish: A guide to procedures and methods. Fish Res. 38: 45-46.

Oldewage, W.H. & Smale, M.J .1993. Occurrence of piscine parasitic copepods (Crustacea) on sharks taken mainly off Cape Recife, South Africa. South Afr. J. Marine Sci. 13: 309-312. doi:10.2989/025776193784287310.

Pillai, N.K. 1985. The Fauna of India. Copepod Parasites of Marine Fishes. Zoological Society India, Calcutta.

Reardon, M., Márquez, F., Trejo, T. & Clarke, S.C. 2009. Alopias pelagicus. The IUCN Red List of threatened species: e.T161597A5460720. http://dx.doi. org/10.2305/IUCN.UK.2009-2.RLTS.T161597A5460720.en. Accessed on 19 November 2015.

Santander-neto, J. & Lessa, R. 2013. Hermaphroditic smalleye droundray (Urotrygon microphthalmum) from north-eastern Brazil. Mar. Biodivers. Rec. 6: e60.https://dx.doi.org/10.1017/ S1755267213000353.

Shiino, S.M. 1954. Copepods parasitic on Japanese fishes. 5. Five species of the family Pandaridae. Rep. Fac. Fish. Prefect. Univ. Mie. 1: 291-332.

Shiino, S.M. 1963. Parasitic copepods of Eastern. Pacific fishes. 3. Echthrogaleus pellucidus Sp. nov., Rep. Fac. Fish. Prefect. Univ. Mie. 4: 357-368.

Smith, S.I. 1874. Report upon the invertebrate animals of the Vineyard Sound and adjacent waters. Rep. Comm. Fish. and Fisher. 1871 & 1872: 478.

Sinha, M.K., Paul Pandian, P., Pattnayak, S.K. & Kar, A.B. 2010. Spatio-temporal distribution, abundance and diversity of oceanic sharks occurring in Andaman and Nicobar waters. Recent Trends in Biodiversity of Andaman and Nicobar Islands, Zoological survey of India. pp. 373-385.

Thomson, G. M. 1889. Parasitic Copepoda of New Zealand. Trans. Proc. N.Z. Inst. 22: 353-376.

Watchariya, P., Phithak, C. & Thanitha Thapanand, C. 2009. Parasites of deep-sea sharks from the Andaman Sea with six new records of parasites in Thailand. Kasetsart J. (Nat. Sci.) 43: 93-99.

*Corresponding author; email: hdpradeep@gmail.com