scholarly journals Community ecology of the metazoan parasites of freshwater fishes of Kerala

2012 ◽  
Vol 36 (2) ◽  
pp. 184-196 ◽  
Author(s):  
M. Razia Beevi ◽  
S. Radhakrishnan
Keyword(s):  
Community Ecology ◽  
Freshwater Fishes ◽  
Metazoan Parasites

scholarly journals Diversity and community ecology of metazoan parasites in Pimelodus ornatus (Siluriformes: Pimelodidae) from the Amazonas River in Brazil

2021 ◽  
Vol 30 (3) ◽  
Author(s):  
Elvis Silva Lima ◽  
Marcos Sidney Brito Oliveira ◽  
Marcos Tavares-Dias
Keyword(s):  
Species Richness ◽  
Food Web ◽  
Community Ecology ◽  
Parasite Species ◽  
Diversity Index ◽  
Nematode Species ◽  
Parasite Community ◽  
First Record ◽  
Metazoan Parasites ◽  
Shannon’S Diversity Index

Abstract The present study investigated the metazoan parasite community in Pimelodus ornatus from the Amazon River, in the state of Amapá (Brazil). Of 71 fish examined, 70.4% were parasitized by Demidospermus sp. (Monogenea), Cucullanus pinnai, Procamallanus (Spirocamallanus) inopinatus and Contracaecum sp. (Nematoda) and plerocercoids from Proteocephalidae gen. sp. (Cestoda). The dominance was of nematode species such as Procamallanus (S.) inopinatus and Contracaecum sp. The parasites showed a highly aggregated dispersion and a predominance of hosts infected by one species of parasite. The parasite community was characterized by a low Shannon diversity index, low evenness and low species richness. The richness of parasite species, Shannon's diversity index, abundance of P. (S.) inopinatus and Proteocephalidae gen. sp. showed a positive correlation with the length of the hosts. Therefore, the size of the hosts had an influence on the parasite community and infracommunities, as well as their intermediate position in the food web. This is the first record of P. (S.) inopinatus and Contracaecum sp. for P. ornatus.

scholarly journals ECTOPARASITIC COMMUNITY ECOLOGY OF FRESHWATER FISHES OF RIVER PENNA, YSR KADAPA DISTRICT, ANDHRA PRADESH, INDIA

2021 ◽  
Vol 03 (02) ◽  
pp. 241-256
Author(s):  
Rafeeq Ahammed Peddinti ◽  
Chandrasekhar Thummala ◽  
Riazunnisa Khateef ◽  
Anuprasanna Vankara
Keyword(s):  
Community Ecology ◽  
Andhra Pradesh ◽  
Freshwater Fishes
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