Salinity tolerance of Gyrodactylus salaris (Platyhelminthes, Monogenea): laboratory studies
作者： A Soleng , T A Bakke
DOI: 10.1139/F97-089
关键词: Seawater 、 Ecology 、 Environmental factor 、 Brackish water 、 Biological dispersal 、 Gyrodactylus salaris 、 Biology 、 Monogenea 、 Salmo 、 Salinity 、 Zoology
摘要: The salinity tolerance of the freshwater monogenean Gyrodactylus salaris, infecting Atlantic salmon (Salmo salar) parr, was studied experimentally. Following direct transfer infected fish from fresh water to 5.0‰ salinity, parasite population growth increased at same rate as in and positively correlated with temperature (1.4, 6.0, 12.0°C). In 7.5‰ populations declined became extinct after a maximum 56 days, without any significant difference between 6.0 12.0°C. However, some infrapopulations demonstrated short periods growth. At higher salinities (10.0, 15.0, 20.0, 33.0‰) survival time decreased, there negative correlation When transferred directly sea (33.0‰) parasites opaque ceased moving few minutes. There no gradual 7.5 10.0‰, except for one infrapopulation which day 22 fluctuations following 7.5‰. present findings support hypothesis brackish dispersal G. salaris migrating rivers fjord systems.
nrcresearchpress.com参考文章(40)
Philip David Harris, Studies on the biology of the gyrodactyloidea (monogenea) Queen Mary, University of London. ,(1983)
James C. Chubb, Seasonal Occurrence of Helminths in Freshwater Fishes Part I. Monogenea Advances in Parasitology Volume 15. ,vol. 15, pp. 133- 199 ,(1977) , 10.1016/S0065-308X(08)60528-X
James C. Chubb, Seasonal Occurrence of Helminths in Freshwater Fishes Advances in Parasitology. ,vol. 18, pp. 1- 120 ,(1980) , 10.1016/S0065-308X(08)60398-X
B. O. Johnsen, The effect of an attack by the parasite Gyrodactylus salaris on the population of salmon parr in the river Lakselva, Misvaer in northern Norway. Journal of Arctic Biology. ,vol. 11, pp. 7- 9 ,(1978)
A. V. Luzin, V. P. Solomatova, O.A. Skarlato, Gyrodactylosis of carps in fish tanks located on discharged waters of the Kostromsk electric power plant and some problems of the biology of Gyrodactylus katharineri. Investigation of monogeneans in the USSR.. pp. 163- 168 ,(1987)
Knut Schmidt-Nielsen, Animal Physiology: Adaptation and Environment ,(1962)
B. O. Johnsen, A. J. Jensen, Infestations of Atlantic salmon, Salmo salar, by Gyrodactylus salaris in Norwegian rivers Journal of Fish Biology. ,vol. 29, pp. 233- 241 ,(1986) , 10.1111/J.1095-8649.1986.TB04941.X
H. Moller, The effects of salinity and temperature on the development and survival of fish parasites Journal of Fish Biology. ,vol. 12, pp. 311- 323 ,(1978) , 10.1111/J.1095-8649.1978.TB04176.X
G. Malmberg, M. Malmberg, Species of Gyrodactylus (Platyhelminthes, Monogenea) on salmonids in Sweden Fisheries Research. ,vol. 17, pp. 59- 68 ,(1993) , 10.1016/0165-7836(93)90007-T
Tor Atle Mo, Seasonal variations of opisthaptoral hard parts of Gyrodactylus salaris Malmberg, 1957 (Monogenea: Gyrodactylidae) on parr of Atlantic salmon Salmo salar L. in the River Batnfjordselva, Norway Systematic Parasitology. ,vol. 19, pp. 231- 240 ,(1991) , 10.1007/BF00011889