TY - JOUR
T1 - Three species of parasites emerging on the gills of mulloway, Argyrosomus japonicus (Temminck and Schlegel, 1843), cultured in Australia
AU - Hayward, Craig J.
AU - Bott, Nathan J.
AU - Itoh, Naoki
AU - Iwashita, Makoto
AU - Okihiro, Mark
AU - Nowak, Barbara F.
N1 - Funding Information:
We thank Dr Chris Rowley (Museum Victoria, Melbourne, Australia) for the loan of the syntype specimens of Microcotyle sciaenicola; Mr Allan Mooney (University of Adelaide, Australia) for providing specimens of Z. seriolae for sequencing; and Dr Toby Bolton (Flinders University, Port Lincoln Marine Science Centre) for allowing CJH to use his photomicroscopic equipment. This work formed part of a project of Aquafin CRC, and received funds from the Australian government's CRCs programme, the Fisheries R&D Corporation and other CRC participants.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2007/5/1
Y1 - 2007/5/1
N2 - Mulloway is an Indo-West Pacific sciaenid fish with a short history of commercial culture in Australia. In January 2005, a harvest sample of these fish cultured off South Australia was observed macroscopically with large numbers of a blood-feeding polyopisthocotylean. Epizootics of this parasite may pose a threat to the economics of farming this species, since it appears to be associated with anemia, as indicated by pale gills. Based on morphological characters, we identify the monogenean as Sciaenacotyle sciaenicola [Murray, F.V., 1932. Correction: note on a microcotylid from Sciaena antarctica. Parasitology 24, 448.] Mamaev [Mamaev, Yu.L., 1989. On species composition and morphological features of the Microcotyle genus (Microcotylidae, Monogenoidea). In: Lebedev, B.I. (Ed.), Investigations in Parasitology. Collection of Papers. DBNTs AN SSSR: Vladivostok, pp. 32-38 [In Russian].]. Maximum likelihood analysis of ITS2 rDNA confirms that the genus Sciaenacotyle is not closely related to two other microcotylid genera also known from sciaenid fishes: Diplostamenides (represented by D. sciaenae (Goto, 1894) Mamaev [Mamaev, Yu.L., 1989. On species composition and morphological features of the Microcotyle genus (Microcotylidae, Monogenoidea). In: Lebedev, B.I. (Ed.), Investigations in Parasitology. Collection of Papers. DBNTs AN SSSR: Vladivostok, pp. 32-38 [In Russian].] from white croaker, Pennahia argentata, in Japan) and Anchoromicrocotyle (represented by A. guaymensis [Bravo-Hollis, M., 1981. Helminths of fish of the Mexican Pacific. XXXVI. A new genus and subfamily of the family Microcotylidae Taschenberg, 1879 emended. An. Inst. Cienc. Mar Limnol. Univ. Nac. Auton. Mex. 8, 305-313.] from white seabass, Atractoscion nobilis, in California). In more intensive sampling of gills, we detected two other species of metazoan parasites, the monopisthocotylean Calceostoma glandulosum Johnston et Tiegs, 1922; and a copepod we identify as Caligus cf. elongatus, a sea louse very similar to C. elongatus Nordmann (1832), which affects farmed salmonids in the North Atlantic. Praziquantel bath treatment at an initial concentration that removed S. sciaenicola from mulloway gills did not remove C. glandulosum.
AB - Mulloway is an Indo-West Pacific sciaenid fish with a short history of commercial culture in Australia. In January 2005, a harvest sample of these fish cultured off South Australia was observed macroscopically with large numbers of a blood-feeding polyopisthocotylean. Epizootics of this parasite may pose a threat to the economics of farming this species, since it appears to be associated with anemia, as indicated by pale gills. Based on morphological characters, we identify the monogenean as Sciaenacotyle sciaenicola [Murray, F.V., 1932. Correction: note on a microcotylid from Sciaena antarctica. Parasitology 24, 448.] Mamaev [Mamaev, Yu.L., 1989. On species composition and morphological features of the Microcotyle genus (Microcotylidae, Monogenoidea). In: Lebedev, B.I. (Ed.), Investigations in Parasitology. Collection of Papers. DBNTs AN SSSR: Vladivostok, pp. 32-38 [In Russian].]. Maximum likelihood analysis of ITS2 rDNA confirms that the genus Sciaenacotyle is not closely related to two other microcotylid genera also known from sciaenid fishes: Diplostamenides (represented by D. sciaenae (Goto, 1894) Mamaev [Mamaev, Yu.L., 1989. On species composition and morphological features of the Microcotyle genus (Microcotylidae, Monogenoidea). In: Lebedev, B.I. (Ed.), Investigations in Parasitology. Collection of Papers. DBNTs AN SSSR: Vladivostok, pp. 32-38 [In Russian].] from white croaker, Pennahia argentata, in Japan) and Anchoromicrocotyle (represented by A. guaymensis [Bravo-Hollis, M., 1981. Helminths of fish of the Mexican Pacific. XXXVI. A new genus and subfamily of the family Microcotylidae Taschenberg, 1879 emended. An. Inst. Cienc. Mar Limnol. Univ. Nac. Auton. Mex. 8, 305-313.] from white seabass, Atractoscion nobilis, in California). In more intensive sampling of gills, we detected two other species of metazoan parasites, the monopisthocotylean Calceostoma glandulosum Johnston et Tiegs, 1922; and a copepod we identify as Caligus cf. elongatus, a sea louse very similar to C. elongatus Nordmann (1832), which affects farmed salmonids in the North Atlantic. Praziquantel bath treatment at an initial concentration that removed S. sciaenicola from mulloway gills did not remove C. glandulosum.
KW - Aquaculture
KW - Argyrosomus japonicus
KW - Copepoda
KW - Epizootic
KW - Monogenea
KW - Parasite
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U2 - 10.1016/j.aquaculture.2007.02.004
DO - 10.1016/j.aquaculture.2007.02.004
M3 - Article
AN - SCOPUS:34047231651
VL - 265
SP - 27
EP - 40
JO - Aquaculture
JF - Aquaculture
SN - 0044-8486
IS - 1-4
ER -