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Occurrence of exotic vermiculated sailfin catfish Pterygoplichthys disjunctivus from the lower stretch of River Ganga, West Bengal, India.

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Title Occurrence of exotic vermiculated sailfin catfish Pterygoplichthys disjunctivus from the lower stretch of River Ganga, West Bengal, India.
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Creator Das BK
Ray A
Manna RK
Roshith CM
Baitha R
Karna SK
Das Gupta S
Bhor M
 
Subject Algivorous feeding, exotic fish, invasive species, Pterygoplichthys disjunctivus, river system.
 
Description Not Available
The present study reports a record of invasive Loricariid catfish Pterygoplichthys disjunctivus (Weber,
1991) (Siluriformes: Loricariidae) from the Bhagirathi–Hooghly system of River Ganga in West Bengal,
India. The species was encountered from Farakka and
Balagarh regions of Ganga, two areas with different
hydrological regimes. The average total length and
total weight of the collected species was in the range of
360–450 mm and 314-545 g respectively. This exotic
species is reported to contribute about 10% of the
total catch from the Balagarh area of the river stretch,
while its occurrence is sparse in Farakka. The algivorous nature of feeding can pose a threat to nativebottom dwelling fish due to feeding competition. As
the presence of this exotic fish in the lower parts of
Ganga has been confirmed, we discuss necessary management interventions like identifying the source of its
introduction in order to prevent future threats from
this invasive species to native river species.
Not Available
 
Date 2021-08-18T10:00:16Z
2021-08-18T10:00:16Z
2020-01-01
 
Type Research Paper
 
Identifier Das, B. K., Ray, A., Manna, R. K., Roshith, C. M., Baitha, R., Karna, S. K., ... & Bhor, M. (2020). Occurrence of exotic vermiculated sailfin catfish Pterygoplichthys disjunctivus from the lower stretch of River Ganga, West Bengal, India. Current Science, 119(12), 2006-2009
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http://krishi.icar.gov.in/jspui/handle/123456789/58707
 
Language English
 
Relation Not Available;
 
Publisher Current Science