scholarly journals Studies on fish diversity concerning Hydro-ecology of Kangsabasti river in Purulia district, West Bengal, India

2020 ◽  
Vol 26 (2) ◽  
Author(s):  
Manab Kumar Saha
Keyword(s):  
Fish Species ◽  
Physicochemical Parameters ◽  
West Bengal ◽  
Monsoon Season ◽  
Fish Diversity ◽  
Riverine Ecosystem ◽  
Post Monsoon ◽  
Fish Catch ◽  
Purulia District

Fish diversity depends both on various physicochemical parameters and the biological components of the riverine ecosystem. During the study period from January 2017 to December 2019 the highest fish diversity and density were observed in post-monsoon and lowest in pre-monsoon season in the Kangsabati River, Purulia District of West Bengal. Twenty five fish species, associated with 19 genera, 10 families and 5 orders have been identified. It was recorded that the Cyprinidae was the predominant family, which represented 56% of the entire fish catch.

scholarly journals Fish diversity and the conservation status of a wetland of Cooch Behar District, West Bengal, India

2018 ◽  
Vol 10 (3) ◽  
pp. 11423
Author(s):  
Ram Krishna Das
Keyword(s):  
West Bengal ◽  
Monsoon Season ◽  
Conservation Status ◽  
Single Species ◽  
Fish Diversity ◽  
Vulnerable Species ◽  
Post Monsoon ◽  
The Status ◽  
Weed Infestation ◽  
Near Threatened

A study was carried out from March 2016 to February 2017 to investigate the diversity of fishes and the conservation status of Bochamari Beel, a natural wetland of Cooch Behar District, West Bengal, India.  The study revealed the occurrence of 40 species of fishes belonging to 31 genera under six orders and 15 families.  Cyprinidae was the dominant family with 14 species followed by Channidae with four species, Ambassidae and Bagridae with three species each, Nandidae, Mastacembelidae, Belontiidae, Siluridae and Clariidae with two species each whereas Cobitidae, Belonidae, Gobiidae, Anabantidae, Tetraodontidae and Notopteridae were represented by a single species each.  The status of species of this beel included one Endangered species, one Vulnerable species and four Near Threatened species.  The maximum fish diversity was recorded in the monsoon season (H’=2.876) as compared with pre monsoon (H’=2.124) and post monsoon (H’ =1.735).  The evenness index varied from 0.640 (post monsoon) to 0.822 (monsoon), which indicates uneven distribution of fishes in this beel.  Indiscriminate fishing throughout the year, along with extensive weed infestation could be responsible for depletion of fish diversity in this beel.

scholarly journals Pre-monsoon and post-monsoon groundwater chemical analysis For Burdwan (West Bengal), India

MAUSAM ◽  
2021 ◽  
Vol 72 (4) ◽  
pp. 859-864
Author(s):  
PRAVAT RABI NASKAR ◽  
SHOBHIT KATIYAR ◽  
SOURISH BONDYOPADHYAY
Keyword(s):  
Water Quality ◽  
Pollution Control ◽  
Physicochemical Parameters ◽  
West Bengal ◽  
Monsoon Season ◽  
Control Board ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Central Pollution Control Board

This study has been carried out to find the groundwater quality of Burdwan district of West Bengal during pre-monsoon and post-monsoon. For this, the data of physicochemical parameters have been collected from Central Pollution Control Board (CPCB) website for the pre-monsoon and post-monsoon season for the year 2017. It is found that during the post-monsoon season, the water quality of all the stations falls in the category of excellent, and during the pre-monsoon season, the water quality of most of the stations is good.

scholarly journals FISH DIVERSITY OF GHODAGHODI LAKE IN KAILALI, FAR-WEST NEPAL

2017 ◽  
Vol 22 (1) ◽  
pp. 120-126
Author(s):  
Dipendra Joshi ◽  
Bijaya K. C.
Keyword(s):  
Species Richness ◽  
Community Structure ◽  
Fish Species ◽  
Diversity Index ◽  
Fish Diversity ◽  
Channa Striatus ◽  
Illegal Fishing ◽  
Dominant Fish ◽  
Fish Catch ◽  
Excessive Proliferation

Ghodaghodi Lake is an ox-bow perennial lake of Ghodaghodi Lake Complex, situated in Kailali district. The present study was conducted to understand the fish diversity, community structure and distribution pattern in Ghodaghodi Lake. A total of 13 fish species were recorded from the different section of Ghodaghodi Lake, belonging to five order, eight family and eleven genera. According to fish catch the dominant order and family of Ghodaghodi Lake were found to be Cypriniformes (40%) and Cyprinidae (40%) respectively. The dominant fish species of Ghodaghodi Lake was Labeo gonius followed by Mystus tengara, Nandus nandus and Channa striatus. The highest diversity index (2.46), species richness (6.14) and evenness (0.96) of fish were recorded from station III during the month of January. Lowest diversity index (1.75) and evenness (0.90) was found in station II and during the month of October (2.25 and 0.88). Similarly, lowest species richness was found in station I (3.91) and during the month of July (5.82). Fish diversity and number in Ghodaghodi Lake were found to have decreased. This could be due to pollution, illegal fishing and excessive proliferation of aquatic weeds.Journal of Institute of Science and TechnologyVolume 22, Issue 1, July 2017, page: 120-126

scholarly journals Water quality and fish diversity in Korotoa River of Bogura, Bangladesh

2020 ◽  
Vol 32 (1) ◽  
pp. 60-72
Author(s):  
SAMINA AHATUN ◽  
MD. SIRAJUL ISLAM ◽  
MD. HUMAYUN KABIR ◽  
MAUSUMI REHNUMA ◽  
MD. ENAMUL HOQ
Keyword(s):  
Water Quality ◽  
River Water ◽  
Fish Species ◽  
Physicochemical Parameters ◽  
Industrial Effluent ◽  
Domestic Sewage ◽  
Fish Diversity ◽  
Quality Degradation ◽  
Water Fish

The study was conducted to explore the physicochemical parameters of water, fish diversity andfisheries resources of Korotoa River at Bogura city of Bangladesh during July 2015 to February 2016. Thewater samples were collected from five sampling stations in the Korotoa River during wet and dry seasons.The results of the study showed that temperature, EC, TDS, DO, BOD, alkalinity, acidity and total hardnessof the Karotoa River water were 25.86ºC, 297.41 ?S/cm, 98.86 mg/L, 2.17 mg/L, 2.64 mg/L, 122.05mg/L, 3.28 mg/L and 75.59 mg/L, respectively. The DO and BOD contents of the river water were foundunsuitable for fisheries when compared with the standard of DoE. A total of ten fish species under six ordersand seven families were identified during the study period. The study also revealed that the most remarkablecause of water quality degradation of the river was waste dumping (58%) followed by urbanization and riverbank erosion. The water quality degradation (46%) negatively influenced the abundance of fish species. Theresults concluded that the water quality of the river is not favorable for production of fishes and other aquaticorganisms. The study suggested that the source of water quality degradation should be closely monitoredtogether with the industrial effluent and/or domestic sewage discharge should be reduced or stopped throughthe initiatives of the local government concerned to maintain sound and healthy ecosystem of the river.

scholarly journals Study of indigenous freshwater fish diversity of Bankura (West Bengal), India with special reference to Clarias batrachus

2018 ◽  
Vol 10 (4) ◽  
pp. 1162-1172
Author(s):  
Arindam Ganguly ◽  
Amrita Banerjee ◽  
Asish Mandal ◽  
Tapas Kumar Dutta ◽  
Pradeep Kumar Das Mohapatra
Keyword(s):  
Freshwater Fish ◽  
Fish Species ◽  
West Bengal ◽  
Clarias Batrachus ◽  
Fish Diversity ◽  
African Catfish ◽  
Hypophthalmichthys Molitrix ◽  
Local Markets ◽  
Wallago Attu ◽  
Bankura District

A study was conducted to determine the ichthyofaunal diversity in Bankura district of West Bengal. The area is traversed by major and minor rivers, feeder channels, numerous ponds, bills, reservoirs which have made this drought-trodden district as the highest producer of aquatic products within the state. Field survey was conducted in randomly selected local markets covering twenty-two blocks of Bankura. Fish sampling was carried out using various conventional fishing gears. The entire region harbours a wide variety of aquatic fishes. A total number of 92 indigenous fish species belonging to 30 families were identified during this study. The Cyprinidae family dominated the population with its 36 varieties followed by Channidae, Siluridae and Bagridae. Sonamukhi block situated in Shali basin; Sarenga and Raipur of Kangsabati basin; Dwarkeshwar and seven bundhs- enriched Bishnupur were the major habitats of small indigenous fishes. This paper also denotes presence of 12 globally endemic freshwater fish species viz. Hypophthalmichthys molitrix, Cyprinus carpio, Labeo nandina, Tor khudree, Chitala chitala, Bagarius bagarius, Wallago attu, Ompok pabda, Ailia coila, Anguilla bengalensis, Parambassis lala, Oreochromis mossambicus. The substitution of native Clarias batrachus with invasive African catfish C. gariepinus was observed in various local markets. Some traders even promote illicit farming of this banned species for their own profit. As a consequence, the indigenous, nutritionally-enriched C. batrachus is becoming more endangered.

Ichthyofaunal Diversity of River Kapaleswari at Paschim Medinipur District of West Bengal, India

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
Arun Jana ◽  
Godhuli Sit ◽  
Angsuman Chanda
Keyword(s):  
Fish Species ◽  
West Bengal ◽  
Economic Value ◽  
Fish Population ◽  
Individual Species ◽  
Fish Diversity ◽  
Faunal Diversity ◽  
Data Deficient ◽  
Future Policy ◽  
First Time

The present study has been conducted on ichthyofaunal diversity of river Kapaleswari flowing through Paschim Medinipur district of West Bengal, India. Results reveal the existence of 56 indigenous fish species under 22 families of 8 orders and the order Perciformes represents the largest diversity with 8 families and 20 species. Cyprinidae is the most dominant family; contributed 26.79% species. Two species namely Stigmatogobius sadanundio & Gobiopsis macrostoma have been first time recorded from Paschim Medinipur district of West Bengal. Among the recorded fish species of Kapaleswari River, 47.07% were used as food-fish, 1.79% used as ornamental & the remaining 57.14% were used as both food and ornamental. So, maximum fish species have important socio-economic value for the development of local people proximate to the Kapaleswari River. The values of the Shannon-Weaver index (H) range from ‘3.58’ to ‘3.79’ & the Simpson’s index (D) from ‘0.023’ to ‘0.032’ among the sampling sites are indicative to diverse fish population in Kapaleswari River. The result of species evenness has been concluded that individual species are near to disturb condition at Kapaleswari river. According to IUCN ver. 2020.1, status of the fishes in the river depicts, 75% are Least Concern, 3.57% are Vulnerable, 8.93% are Near Threatened, 10.71% are Not Evaluated & 1.71% are Data Deficient. As per local status 71.42% of fishes of this river are under risk and need immediate conservation to protect them from extinction. Hence, the work is a documentation of macro faunal diversity of Kapaleswari river as well as regional level for helpful for future researchers and policy planners and also helpful to formulate the future policy for conservation and management of the fish diversity in the river Kapaleswari.

scholarly journals Fish species diversity, fishing gears and crafts from the Buriganga river, Dhaka

2017 ◽  
Vol 45 (1) ◽  
pp. 11-26
Author(s):  
Mohammad Abdul Baki ◽  
Md Muzammel Hossain ◽  
Naser Ahmed Bhouiyan ◽  
Md Asaduzzaman
Keyword(s):  
Species Diversity ◽  
Fish Species ◽  
Monsoon Season ◽  
Fish Diversity ◽  
Fishing Gear ◽  
Polluted River ◽  
Fishing Gears ◽  
Different Types ◽  
Buriganga River ◽  
Fish Species Diversity

Fish species, fishing gear and crafts in the most polluted river Buriganga were inventorial. During December, 2012 to November, 2013, a total of 56 fish species belonging to 20 families and 9 orders were recorded. Cypriniformes observed to be the most dominant order with 18 species (32%). The highest fish diversity was recorded during monsoon season, and lowest during winter. Maximum diversity variance (7.616 ± 2.76 Sd) observed in the monsoon season for 56 species (220 individuals). Also 12 different types of gears of two categories (active and passive) and two types of crafts were observed to be used for fishing in the study area. The highest number of species of fishes (n = 56) recorded in August and lowest (n = 3) in April and May 2013. Strong correlation between water depth and number of fish species (r = 0.74) and fishing activities (r = 0.96) was observed.Bangladesh J. Zool. 45(1): 11-26, 2017

scholarly journals Assessment of Fisheries and Management in Rihand Reservoir, Uttar Pradesh

2018 ◽  
Vol 6 (3) ◽  
pp. 378-389 ◽  
Author(s):  
Pooja Gautam ◽  
P.S. Ananthan ◽  
V. Ramasubramanian ◽  
Arpita Sharma ◽  
Bankim C. Jha
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Present Status ◽  
Monsoon Season ◽  
Chemical Properties ◽  
Wiener Index ◽  
Significant Loss ◽  
Annual Fish ◽  
Post Monsoon ◽  
Fish Catch

The study assesses the present status of fisheries in Rihand reservoir in relation to past status in terms of fish species diversity, trophic metrics of fish community, trends in fish catch and the physico-chemical properties of the waterbody. Species-wise monthly catch data collected from annual fish catch records ofDepartment of Fisheries, Rihand office helped the analyse present status. Shannon-Wiener Index showed an appreciable decline in species diversity between 1971-72 (H=2.94) and 2015-16 (H=2.59). There was significant loss in species richness during the same period as it has declined from 40 species, 28 genera and 11 families (1971-72)to 22 species,16 genera and 8 families (2015-16). Seasonally, the species diversity was found to be at its peak during monsoon season (H=2.2), coinciding with favourable conditions such as sufficient water and ample food resources. Species richness was at its best in the month of May-June while species evenness (J=0.85) was highest in post monsoon indicating an evenly distributed and rich fauna in the monsoon and post monsoon periods. The review of literature on water quality status indicated the reservoir is meso-eutrophic in nature. The trophic metrics analysis has shown that the water body is dominated by herbivores, detritivores and omnivores (72.3%) followed by mid-level carnivores (26.7%) indicating gaps at the top level predators. The total fish catch of the reservoir has increased marginally from 152 tons in 1971 to 262 tons in 2016. The corresponding unit catch was 5.06 kg/ha/year and 8.68 kg/ha/year respectively, which is still very low. The CAGR of fish landings for the recent period (2000-01 to 2015-16) was found to be a modest 1.8% with several inter-year fluctuations. Given the conducive aquatic environment and moderate productivity levels of the reservoir, fish catch can be increased significantly only through sustained stocking program alongside effective governance.

scholarly journals Cold water fish diversity and their conservation status in Teesta,Jaldhak, Torsa, Kaljani and Sankosh Rivers of the Dooars region, West Bengal, India

2021 ◽  
Vol 10 (1) ◽  
pp. 146-152
Author(s):  
Tapan Sarkar ◽  
Keyword(s):  
Fish Species ◽  
West Bengal ◽  
Cold Water ◽  
Conservation Status ◽  
Fish Diversity ◽  
Vulnerable Species ◽  
Monthly Basis ◽  
Water Fish

A survey was conducted on the cold water fish diversity in the different rivers of the Dooars region with the help of fisherman. Data was collected on the monthly basis by using different nets. A total of 71 cold water fishes were reported during the study period. Most dominant family was cyprinidae with 32 species followed by Sisoridae with 12 species; Balitoridae 8 and Bagridae with 4 species etc. 70 cold water fish species in the river Teesta, 63 in Jaldhaka, 66 in Torsa, 61 in Kaljani and 66 in the river Sankosh were recorded. Ten Endangered and 31 Vulnerable species were reported from all the five rivers. Out of 71 cold water fishes many have consumption and ornamental value. Many migratory and sport cold water fishes are also reported. Catch frequency status indicates many fishes found rare and extremely rare during the study.

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