Chinese Acad Sci, Inst Hydrobiol, Lab Fish Dis, Wuhan 430072, Hubei Province, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei Province, Peoples R China
WOS标题词:
Science & Technology
; Life Sciences & Biomedicine
类目[WOS]:
Fisheries
; Veterinary Sciences
研究领域[WOS]:
Fisheries
; Veterinary Sciences
摘要:
The frequency distributions of the parasitic copepod Sinergasilus polycolpus were examined in silver carp Hypophthalmichthys molitrix and bighead carp Aristichthys nobilis during a disease outbreak of the 2 species of fish in a reservoir in China. The mean abundance of the copepod was positively related with host length and age, and the overdispersion of the copepod in both silver and bighead carp was fitted well with negative binomial distribution. Although parasite-induced host mortality was observed, a peaked age-parasite abundance curve was not detected in the present parasite-host system. It is also proposed that this peaked age-abundance curve is unlikely to be observed in its natural host populations.
英文摘要:
The frequency distributions of the parasitic copepod Sinergasilus polycolpus were examined in silver carp Hypophthalmichthys molitrix and bighead carp Aristichthys nobilis during a disease outbreak of the 2 species of fish in a reservoir in China. The mean abundance of the copepod was positively related with host length and age, and the overdispersion of the copepod in both silver and bighead carp was fitted well with negative binomial distribution. Although parasite-induced host mortality was observed, a peaked age-parasite abundance curve was not detected in the present parasite-host system. It is also proposed that this peaked age-abundance curve is unlikely to be observed in its natural host populations.
关键词[WOS]:
HOST MORTALITY
; PARASITE
; DISTRIBUTIONS
; POPULATION
1.Chinese Acad Sci, Inst Hydrobiol, Lab Fish Dis, Wuhan 430072, Hubei Province, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei Province, Peoples R China
Recommended Citation:
Gui T. Wang; Wen X. Li; Wei J. Yao; P. Nie.Mortalities induced by the copepod Sinergasilus polycolpus in farmed silver and bighead carp in a reservoir,DISEASES OF AQUATIC ORGANISMS,2002,48(3):237-239
