Hostname: page-component-5c6d5d7d68-qks25 Total loading time: 0 Render date: 2024-08-17T20:32:32.928Z Has data issue: false hasContentIssue false
  • English
  • Français

Seasonal population dynamics of Pallisentis (Neosentis) celatus (Acanthocephala: Quadrigyridae) in the intestine of the rice-field eel Monopterus albus in China

Published online by Cambridge University Press:  01 December 2007

Zeng Boping  and
Wang Wenbin
Zeng Boping*
Affiliation:
Department of Life Sciences, Hunan University of Arts and Science, Changde 415000, People's Republic of China
Wang Wenbin
Affiliation:
Department of Life Sciences, Hunan University of Arts and Science, Changde 415000, People's Republic of China
*
*Author for correspondence Fax: 86 736 7186165 E-mail: zbp1966a@hotmail.com
Get access Rights & Permissions [Opens in a new window]

Abstract

Studies on the seasonal population dynamics of Pallisentis (Neosentis) celatus (Acanthocephala: Quadrigyridae) in the intestine of the rice-field eel Monopterus albus from the paddies and ditches in the Dong-ting Lake basin of China, were carried out with samples taken from June 2002 to May 2003. Prevalences were above 21% in all seasons sampled and with a distinct seasonal trend, which was highest (45.81%) in the spring and decreased by degrees. The mean intensity of infection was above 4.0 worms per fish. The maximum intensity of worms recovered from a single fish was 86 in the autumn of 2002. No significant seasonal differences were found in mean intensities, and differences in the mean abundance between winter and spring, winter and autumn were significant. Over-dispersed distributions of P. (N.) celatus in the host population, due to heterogeneity and feeding habits, were observed in all seasons. The size composition of both sexes of P. (N.) celatus showed males between 2.0 mm and 14.0 mm and females between 2.2 mm and 22.2 mm, with the main recruitment phase in the worm populations occurring in the summer and autumn, especially in the autumn, with the lowest recruitment occurring in the winter. The maturation and copulation of worms were mainly focused in the spring season. The sex ratio of female to male was both high in summer (1.09:1) and autumn (1.08:1). The higher proportion of females and the change in the worm sex ratio in summer can be attributed to the reduced longevity of male worms. As immature male worms exhibit a higher proportion of the worm population than females in all seasons, further studies are needed to determine if such a situation compensates for the shorter life span of males.

Type
Research Papers
Information
Journal of Helminthology , Volume 81 , Issue 4 , December 2007 , pp. 415 - 420
Copyright
Copyright © Cambridge University Press 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Amin, O.M. (1975) Host and seasonal association of Acanthocephalaus parksidei Amin 1974 (Acanthocephala: Echinorhynchidae) in Wisconsin fishes. Journal of Parasitology 61, 318–329.CrossRefGoogle ScholarPubMed
Anderson, R.M. (1974) Population dynamics of the cestode Caryophyllaeus laticeps (Pallas, 1781) in the bream (Abramis brama (L.)). Journal of Animal Ecology 43, 305–321.CrossRefGoogle Scholar
Anderson, R.M. & May, R.M. (1978) Regulation and stability of host–parasite population interaction. 1: Regulation processes. Journal of Animal Ecology 47, 219–247.CrossRefGoogle Scholar
Awachie, J.B.E. (1965) The ecology of Echinohynchus truttae Schrank, 1788 (Acanthocephala) in a trout stream in North Wales. Parasitology 55, 747–762.CrossRefGoogle Scholar
Bing, X.W. & Xia, D. (2004) Preliminary investigation of parasite in host Monopterus albus from Jiangsu. Chinese Journal of Veterinary Parasitology 12, 59–61(in Chinese).Google Scholar
Bush, A.O., Lafferty, K.D., Lotz, J.M., Shostak, A.W. (1997) Parasitology meets ecology on its own terms: Margolis et al. revisited. Journal of Parasitology 83, 575–583.CrossRefGoogle Scholar
Chen, C.F., Mao, D.H. & Li, X.Y. (1993) Epidemiological investigation of Trypanosoma monopteri and Neosentis celatus of Monopterus albus. Chinese Journal of Aquaculture 3, 17–20(in Chinese).Google Scholar
Chubb, J.C. (1964) Occurrence of Echinorhynchus clavula (Dujardin, 1845) nec Haman, 1892 (Acanthocephala) in the fish of Llyn Tegid (Bala Lake) Merionethshire. Journal of Parasitology 50, 52–59.CrossRefGoogle Scholar
Crofton, H.D. (1971) A quantitative approach to parasitism. Parasitology 62, 179–194.CrossRefGoogle Scholar
Eure, H. (1976) Seasonal abundance of Neoechinorhynchus cylindratus taken from largemouth bass (Micropterus salmoides) in a heated reservoir. Parasitology 73, 355–370.CrossRefGoogle Scholar
Fang, J.P. (1996) Studies on the population biology of Pallisentis (Neosentis) celatus. Reservoir Fisheries 5, 7–9(in Chinese).Google Scholar
Fang, J.P. & Xiang, J. (1999) Studies on seasonal dynamics of Pallisentis (Neosentis) celatus parasitic in rice-field eel. pp. 319–323in China Zoological Society, Studies on China animal sciences. Beijing, Forestry Press of China (in Chinese).Google Scholar
Fang, J.P., Liu, W.S. & Tang, W.P. (1998) Studies on Pallisentis (Neosentis) celatus parasitic in rice-field eel. Reservoir Fisheries (4), 20–21, S2 (in Chinese).Google Scholar
Gordon, D.M. & Rau, M.E. (1982) Possible evidence for mortality induced by the parasite Apatemon gracilis in a population of brook sticklebacks. Parasitology 84, 41–47.CrossRefGoogle Scholar
Kennedy, C.R. (1985) Regulation and dynamics of acanthocephalan population. pp. 385–416in Crompton, D.W.T. & Nickol, B.B. (Eds) Biology of the Acanthocephala. Cambridge, Cambridge University Press.Google Scholar
Khan, A., Bilquees, F.M. & Shaukat, S.S. (1991) Seasonal variation in the occurrence of Pallisentis ophiocephali and Acanthosentis betwai (Acanthocephala) in relation to their fish hosts. Angewandte Parasitologie 32, 165–171.Google ScholarPubMed
Li, C.X., Wang, Z.H. & Wang, W.L. (2000) Statistics for biology. 2nd edn. pp. 78–79. Beijing, Science Press of China (in Chinese).Google Scholar
Lu, J.Y. (1989) Fish pathology. pp. 296–302. Guangzhou, Zhongshan University Press (in Chinese).Google Scholar
Morand, S. & Rivault, C. (1992) Infection dynamics of Blatticola blattae Graeffe (Nematoda Thelastomatidae), a parasite of Blattella germanica L. (Dictyoptera, Blattellidae). International Journal for Parasitology 22, 983–989.CrossRefGoogle Scholar
Muzzall, P.M. (1980) Ecology and seasonal abundance of three acanthocephalan species infecting white suckers in SE New Hampshire. Journal of Parasitology 66, 127–133.CrossRefGoogle Scholar
Parshad, V.R., Crompton, D.W.T. & Nesheim, M.C. (1981) The growth of Moniliformis (Acanthocephala) in rats fed on various monosaccharides and disaccharides. Proceedings of the Royal Society of London B 209, 389–406.Google Scholar
Rosim, D.F., Ceccarelli, P.S. & Silva-Souza, A.T. (2005) Parasitism of Hoplias malabaricus (Bloch, 1794) (Characiformes, Erythrinidae) by Quadrigyrus machadoi Fabio, 1983 (Eoacanthocephala, Quadrigyridae) at a pond, Aguai, State of Sao Paulo, Brazil. Revista Brasilaira Parasitologia 14, 147–153.Google Scholar
Scott, M.E. (1982) Reproductive potential of Gyrodactylus bullatarudis (Monogenea) on guppies (Poecilia reticulata). Parasitology 85, 217–236.CrossRefGoogle Scholar
Southwood, T.R.E. (1978) Ecological methods. 2nd ed. pp. 28–29. New York, NY, Halsted Press.Google Scholar
Sun, R.Y. (2001) Principles of animal ecology. 3nd ed. pp. 163–335. Beijing, Beijing Normal University Press (in Chinese).Google Scholar
Wang, P.C. (1965) The morphology and life cycle of Pallisentis (Neosentis) celatus van Cleave 1928. Acta Parasitolgica Sinica 2, 40–43(in Chinese).Google Scholar
Wang, W.B., Zeng, B.P., Wang, Z., Luo, Y.S. & Wang, J.R. (2004) Studies on the population ecology of Pallisentis (Neosentis) celatus in its host Monopterus albus. Journal of Huazhong Agricultural University 23, 650–653(in Chinese).Google Scholar
Wei, S.J. & Liu, L.X. (1998) Histopathological studies on the intestine of Monopterus albus by Pallisentis (Neosentis) celatus. Reservoir Fisheries (1), 14–16(in Chinese).Google Scholar
Wen, A.X. (2003) Studies on several parasites in host Monopterus albus. Journal of Sichuan Agricultural University 21, 43–46(in Chinese).Google Scholar
Wen, A.X., Yang, G.Y. & Zhang, T. (2000) Preliminary investigation of parasite in host Monopterus albus from Sichuan. Sichuan Journal of Zoology 19, 22–23(in Chinese).Google Scholar
Yang, T.B. & Liao, X.H. (2001) Seasonal population dynamics of Neoechinorhynchus qinghaiensis in the carp. Gymnocypris przewalskii przewalskii, from Qinghai Lake, China. Journal of Helminthology 75, 93–98.Google Scholar
Zeng, B.P. & Liu, C.Y. (1996) A study on the infection of the finless eel (Monopterus albus) by Pallisentis (Neosentis) celatus. Journal of Xiangtan Normal University 17, 43–47(in Chinese).Google Scholar
Zeng, B.P., Liu, X.H., Tan, L.J. & Zhou, Q. (2000) A study on the infection of the finless eel (Monopterus albus) along Xiang-jiang River by the acanthocephalan Pallisentis (Neosentis) celatus. Journal of Xiangtan Normal University 21, 91–96(in Chinese).Google Scholar
Zhang, J.Y., Qiu, Z.Z. & Ding, X.J. (1999) Parasites and parasitic diseases of fishes. pp. 623–625. Beijing, Science Press of China (in Chinese).Google Scholar