The Study of The Parasitic Fauna in Sciaenops Ocellatus, Lower Laguna Madre, Texas

Parasitological investigations provide information on ecosystem health because parasite prevalence and abundance are influenced by biotic and abiotic environmental changes. This survey classified the parasitic fauna of red drum, Sciaenops ocellatus, in the Lower Laguna Madre, TX. Fish (n = 239) were...

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Bibliographic Details
Main Author: Abrigo, Veronica
Format: Text
Language:unknown
Published: ScholarWorks @ UTRGV 2011
Subjects:
Biological sciences
Fish parasites
Lower Laguna Madre
Parasitological survey
Sciaenops ocellatus
Texas
Animal Sciences
Biology
Mansfield
South Bay
Red drum
Copepods
Online Access:https://scholarworks.utrgv.edu/leg_etd/480
https://scholarworks.utrgv.edu/context/leg_etd/article/1496/viewcontent/Abrigo_utpa.edu_6240N_10338.pdf
Description
Summary:Parasitological investigations provide information on ecosystem health because parasite prevalence and abundance are influenced by biotic and abiotic environmental changes. This survey classified the parasitic fauna of red drum, Sciaenops ocellatus, in the Lower Laguna Madre, TX. Fish (n = 239) were collected from four study sites (May 2005 - June 2006). Parasite identification consisted of digenean and monogenean trematodes, cestodes, larval nematodes, copepods, and protozoans. Parasite prevalence and host length was positively correlated from South Bay (r=0.473), Port Isabel (r=0.533), Arroyo(r=0.314), and Port Mansfield (r=0.630). Significant differences (p<0.001) between zone and parasite prevalence from Arroyo site indicated a higher prevalence of protozoa and monogeneans and reduced prevalence of digeneans. Statistical analyses indicated the greatest difference between Port Isabel and Arroyo sites ( divided by 2= 48.195; p<0.001; df= 14), and the least difference between South Bay and Arroyo sites ( divided by 2= 20.847; p= 1.06; df= 14).

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