A Method For Estimating Possible Parasite-Related Host Mortality, Illustrated Using Data From Callitetrarhynchus Gracilis (Cestoda: Trypanorhyncha) in Lizardfish (Saurida Spp.)

Adjei E.L., Barnes A. and Lester R.J.G. (1986) A Method For Estimating Possible Parasite-Related Host Mortality, Illustrated Using Data From Callitetrarhynchus Gracilis (Cestoda: Trypanorhyncha) in Lizardfish (Saurida Spp.). Parasitology, 92 1: 227-243. doi:10.1017/S0031182000063587


Author Adjei E.L.
Barnes A.
Lester R.J.G.
Title A Method For Estimating Possible Parasite-Related Host Mortality, Illustrated Using Data From Callitetrarhynchus Gracilis (Cestoda: Trypanorhyncha) in Lizardfish (Saurida Spp.)
Journal name Parasitology   Check publisher's open access policy
ISSN 1469-8161
Publication date 1986
Sub-type Article (original research)
DOI 10.1017/S0031182000063587
Volume 92
Issue 1
Start page 227
End page 243
Total pages 17
Subject 2405 Parasitology
2725 Infectious Diseases
1103 Clinical Sciences
2403 Immunology
Abstract The frequency distribution of parasites in hosts commonly follows a negative binomial or similar distribution. Under certain conditions the magnitude of parasite-associated host mortality can be estimated by comparing the tail of the observed distribution to that of the distribution predicted from the first few points of the data. For the technique to work the following assumptions need to be met: mortality in lightly infected fish must be rare; infection and consequent mortality occur only in fish younger than those sampled; and the frequency distribution of the parasite at the time of infection should conform to a known probability distribution. The method was applied to frequency distributions of blastocysts of Callitetrarhynchus gracilis in 898 Saurida tumbil (Bloch) and 5013 S. undosquamis (Richardson). Parasite-associated mortality in S. tumbil was calculated to be at least 11 % in males and 2 % in females. For S. undosquamis, estimated mortality was about 5% in males and 3% in females. The numbers of parasites estimated to produce a O.5 probability of death, the parasitological equivalent of an LD 50 were 3.4 and 5.7 for S. tumbil males and females, and 1.8 and 3.2 for S. undosquamis males and females respectively.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 21 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 02 Aug 2016, 01:09:24 EST by System User