Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Pote, M. Linda

Committee Member

Wise, David

Committee Member

Khoo, Lester

Date of Degree

8-9-2008

Document Type

Graduate Thesis - Open Access

Major

Veterinary Medical Science

Degree Name

Master of Science

College

College of Veterinary Medicine

Department

Department of Basic Sciences

Abstract

Planorbella trivolvis, a snail routinely found in catfish ponds, is an intermediate host in the life cycle of Bolbophorus damnificus, a digenetic trematode responsible for mortalities in catfish. This research generated information on the life cycle and the population dynamics of P. trivolvis in catfish ponds which could be implemented to control P. trivolvis. Research indicated that: P trivolvis is present year-round; survives overwintering at water temperatures of 5°C; reproduces year-round; is found in vegetation, sediment and water in ponds year-round; lays eggs two months post-hatch; and has a life span of at least one year. Planorbella trivolvis infected with Bolbophorus spp. were found in 0.8% of the snails examined; found in juvenile snails (4 mm), and could shed 3,200 cercariae/day, and shed these cercariae for up to 21 days. This data indicated that constant snail monitoring and persistent snail control is imperative to control P. trivolvis in catfish ponds.

URI

https://hdl.handle.net/11668/15495

Comments

Planorbella||Bolbophorus||catfish||ponds||snail||parasite

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