Postcyclic Transmission of Leptorhynchoides thecatus and Neoechinorhynchus cylindratus (Acanthocephala) to Largemouth Bass (Micropterus salmoides)

2011 ◽  
Vol 78 (2) ◽  
pp. 233-235 ◽  
Author(s):  
Dennis J. Richardson ◽  
Adel Abdo
Keyword(s):  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Leptorhynchoides Thecatus

Establishment, survival, site selection and development ofLeptorhynchoides thecatusin largemouth bass,Micropterus salmoides

Parasitology ◽  
1993 ◽  
Vol 106 (5) ◽  
pp. 495-501 ◽  
Author(s):  
C. C. Leadabrand ◽  
B. B. Nickol
Keyword(s):  
Largemouth Bass ◽  
Site Selection ◽  
Post Infection ◽  
Alimentary Tract ◽  
Micropterus Salmoides ◽  
Class Numbers ◽  
Intensity Of Infection ◽  
Pyloric Caeca ◽  
Stage Of Development ◽  
Leptorhynchoides Thecatus

SUMMARYEstablishment, survival and distribution ofLeptorhynchoides thecatus(Acanthocephala) were investigated in largemouth bass,Micropterus salmoides, fed 10, 25, or 40 cystacanths and examined at 1, 3 or 5 weeks post-infection. Worms established widely in the alimentary tracts of bass but by 5 weeks post-infection had localized in the pyloric caeca and intercaecal region. Other individuals moved to parenteral sites where they remained immature, though viable. In the 10- and 25-level exposures, establishment and survivorship in the alimentary tract were roughly proportional to the dose of cystacanths. After 1 week post-infection in the 40-level exposure class, numbers of worms in the alimentary tract decreased significantly and parenteral occurrence increased significantly. Total survival ofL. thecatusappeared to be density-independent. Maturation of worms was retarded temporarily as intensity of infection increased, but by 5 weeks post-infection worms from all doses were at roughly the same stage of development within sex. The caeca and intercaecal area apparently did not differ in their suitability for maturation.

Pathogeny of disease characterized by swollen liver and spleen in largemouth bass (Micropterus salmoides)

2013 ◽  
Vol 18 (3) ◽  
pp. 654-659 ◽  
Author(s):  
Dongmei MA ◽  
Guocheng DEND ◽  
Junjie BAI ◽  
Shengjie LI ◽  
Xiaoyan JIANG ◽  
...  
Keyword(s):  
Largemouth Bass ◽  
Micropterus Salmoides

Assessment of caudal fin clip as a non-lethal technique for predicting muscle tissue mercury concentrations in largemouth bass

2008 ◽  
Vol 5 (3) ◽  
pp. 200 ◽  
Author(s):  
S. A. Ryba ◽  
J. L. Lake ◽  
J. R. Serbst ◽  
A. D. Libby ◽  
S. Ayvazian
Keyword(s):  
Rhode Island ◽  
Muscle Tissue ◽  
Largemouth Bass ◽  
Total Mercury ◽  
Micropterus Salmoides ◽  
Mercury Contamination ◽  
Caudal Fin ◽  
Minimal Impact ◽  
Fish Consumption Advisories ◽  
Relationship Of

Environmental context. In the development of fish consumption advisories, fisheries biologists routinely sacrifice fish and analyse muscle fillets in order to determine the extent of mercury contamination. Such lethal techniques may not be suitable for endangered species or limited fish populations from smaller-sized water bodies. We compared the measured total mercury concentrations in tail fin clips to that of muscle fillets and illustrated that tail fin clips may be used as an accurate tool for predicting mercury in muscle tissue. This is the first study on the use of tail fin clips to predict mercury levels in the muscle tissue of largemouth bass with minimal impact on the fish. Abstract. The statistical relationship between total mercury (Hg) concentration in clips from the caudal fin and muscle tissue of largemouth bass (Micropterus salmoides) from 26 freshwater sites in Rhode Island, USA was developed and evaluated to determine the utility of fin clip analysis as a non-lethal and convenient method for predicting mercury concentrations in tissues. The relationship of total Hg concentrations in fin clips and muscle tissue showed an r2 of 0.85 and may be compared with an r2 of 0.89 for Hg concentrations between scales and muscle tissue that was determined in a previous study on largemouth bass. The Hg concentration in fin clip samples (mean = 0.261 μg g–1 (dry)) was more than a factor of twenty greater than in the scale samples (mean = 0.012 μg g–1 (dry)). Therefore, fin clips may be a more responsive non-lethal predictor of muscle-Hg concentrations than scale in fish species which may have reduced Hg concentrations.

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