Status of Aquatic Resource and Production of Kongsha River in Northern Bangladesh.
Journal Title: International Journal of Biological Innovations - Year 2022, Vol 4, Issue 1
Abstract
Bangladesh is very rich in aquatic biodiversity. The present study, conducted during 2016 to 2020, recorded a total number of 138 species (108 fish, 09 prawn, 01 snail, 05 crab, and 15 turtle) belonging to 22 families that identified from the Kongsha River and its flood plain. About ten types of fishing gears, different crafts, hook and line were identified operative in the river. Increasing rates of using current jal (15.00-25.80%) and Bar jal (12.00-16.00%) were identified as detrimental gears destroying different species. The productivity of aquatic life was decreased from 202.99±13.42 to 158.43±11.34 mt during 2016, 2017, 2018, 2019 and 2020. About 04 important aquatic species including major carp mohasseer (Tor tor), reptiles (Cyclemys oldhami, Melanocheelys trjuuga and Morenia petersi) became rare (E) and 17 commercially important aquatic species were at the edge of extinction (CR). From this exploration, 70 species were recorded in the endangered (EN) category, 21 species vulnerable (VU), 12 species lower risk (LR), 08 species least concern (LC) and 04 data deficient (DF). To save the existing aquatic species in the riverine ecosystem and ensure better livelihood of the fishes, a team of local management committee, similar to the Hilsa fisheries management technology is needed.
Authors and Affiliations
B. K. Chakraborty and M. Mome
Flow of granular material out of Hopper: Application in food, agriculture and pharmaceutical industry
A new type of arching and rat-holding free hopper was designed for the flow of granular material by using the Discrete Element Method. Such hoppers are immensely helpful in the food, biopharmaceutical and agriculture i...
An insight highlight story on the beneficial and phytochemical impact of Prosopis cineraria in Tonk, Rajasthan (India).
Prosopis cineraria belongs to the family Mimosaceae. Traditionally the tribal people use Prosopis cineraria in their daily diet. Its leaves, pods and bark have many significant phytochemical components. It is used trad...
CLINICAL MANIFESTATIONS AND PROTECTIVE MEASURES OF ENVIRONMENTAL NOISE: AN OVERVIEW
Noise pollution (or environmental noise) refers to unwanted or unpleasant sound that disrupts the activity or balance of human and animal life. It reduces the concentration and negatively affects the mental activity. T...
A Study on Aquatic Biodiversity of Shuthi-Shaiduli River of Bangladesh.
A total number of 88 species (78 fishes, 4 prawns, 1 crab, 1 snail and 4 reptiles) were identified from the Shuthi-Shaiduli River and its flood plains. About 10 types of operative fishing gear and craft were found in t...
Effect of kitchen wastes and animal dung on reproductive potential of Eutyphoeus waltoni
Earthworms are known to be an excellent biological source that recovers plant nutrients from the organic wastes. With the synergistic action of these earthworms along with bacteria, conversion of organic wastes into nutr...