scholarly journals Fish Diversity at Pancheshwar Multipurpose Project Area in Mahakali River

2013 ◽  
Vol 13 (2) ◽  
pp. 225-230
Author(s):  
Tej B Saund ◽  
Jham B Thapa ◽  
Harish P Bhatt
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Quality Parameters ◽  
Fish Diversity ◽  
Suitable Habitat ◽  
Project Area ◽  
Baseline Information ◽  
Total Fish ◽  
Fish Species Composition ◽  
Study Sites

A study was carried out to prepare a baseline information on water quality and freshwater fish diversity at Pancheshwar Multipurpose Project area in Mahakali river. The study was conducted in autumn (October 2008) and summer (June 2009). A total of 24 fish species belonging to 3 orders, 4 families and 13 genera were recorded during the investigation period. Cypriniformes was the most dominant order accounting 75% of total fish species. Siluriformes and Synbranchiformes accounted for 21% and 4% of fish species composition respectively. Spawning and rearing areas in study sites were evenly distributed providing a suitable habitat for both cold and warm water fish species. The water quality parameters, i.e., water temperature (20.50-22.63 0C), DO (8.58-11.85 mg/l) and pH (6.93-7.20) were found within the suitable range supporting diverse fish species. Nepal Journal of Science and Technology Vol. 13, No. 2 (2012) 225-230 DOI: http://dx.doi.org/10.3126/njst.v13i2.7741

scholarly journals Water quality and fish diversity of Federal University of Agriculture Abeokuta reservoir

2021 ◽  
Vol 39 (2) ◽  
pp. 150-155
Author(s):  
F. I. Adeosun ◽  
W. O. Abdul ◽  
A. A. Akinyemi ◽  
A. O. Agbon ◽  
O. C. Odebiyi
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Clarias Gariepinus ◽  
Quality Parameters ◽  
Fish Diversity ◽  
Suitable Habitat ◽  
Reservoir Water ◽  
Reservoir Water Level ◽  
Fish Yield ◽  
Ogun State

Federal University of Agriculture reservoir is one of the recently constructed in Abeokuta, Ogun state, Nigeria, therefore the need to assess the water quality, fish diversity and catch assessment of this new water body. Data on fish species were collected on a forthnight basis using multi-stage gillnet sampling techniques for four months (September- December, 2011). Three sampling stations were randomly selected from the entire reservoir. A variety of sampling methods were used at each site in order to reach every fish species. At the river channel and the floodplain sites, traps, cast nets (2.55cm mesh), seine nets (2.55 x 2 cm mesh), monofilament nylon gillnets (15.55 cm mesh), and hook and line were employed. Efforts were made in order to catch fish species in large abundance. Some sampled fish (dead) were collected and placed in cool boxes and examined within 18 hours of capture. Others were preserved in 15% formalin and stored for later examination. A total of 863 fish specimens were caught during the study period. These were identified and classified into 5 species belonging to 3 families. The percentage species composition of the harvest by numbers and weight for all fish species that contributed more than 1% in all the stations combined, were computed. Study of the physico-chemical parameter such as dissolved oxygen ranged from 5.03 to 7.19mg/l; 26 to 280C temperature; 64.8 to 148ppm alkaline; pH 6.67-6.90; 32.5 to 53.5m transparent; 8.86 to 13.72mg/l nitrate; 0.58 to 0.64mg/l phosphate; 0.024 to 0.069 o/oo saline; 103-270cm deep. pH and water temperature serve as variables since the fluctuation of one affects the values of others. The water quality parameters were favourable for fish production. The gillnet fisheries indicated that different mesh sizes of experimental gillnets were sensitive to different fish species. 67.2mm, 78.4mm and 112mm, mesh sizes were efficient in catching Clarias gariepinus, Barbus occidentalis and the Cichlids respectively. The study has shown that middle water was the most suitable habitat for fish in the reservoir. Water level and temperature were observed to guarantee high fish yield in the reservoir.

scholarly journals Diversity of Freshwater Fish in Fragmented Forest of Wilmar Oil Palm Plantation, Miri, Sarawak

2021 ◽  
Vol 11 (2) ◽  
pp. 30-37
Author(s):  
Khairul Adha ◽  
Melissa Dennis Chong ◽  
Ahmad Syafiq Ahmad Nasir ◽  
Fatimah A'tirah Mohamad ◽  
Farah Akmal Idrus ◽  
...  
Keyword(s):  
Fish Species ◽  
Oil Palm ◽  
River System ◽  
Suitable Habitat ◽  
Streams And Rivers ◽  
Fragmented Forest ◽  
Oil Palm Plantation ◽  
Total Fish ◽  
Fish Species Composition ◽  
Study Sites

The study was conducted in the river system located at Wilmar oil palm plantation in Miri, Sarawak. The objective of the study is to determine the fish species diversity and composition in the streams and rivers in the oil palm plantations. Fish were sampled using a variety of fishing methods, including, scoop nets, cast net, and gill nets of different mesh sizes (1.0, 1.5, 2.0, 2.5, 3.75 and 4.0 cm) from 2 to 7 of February 2014. A total of 326 individual fish including 32 species of native fishes and one species of non-native fish from 19 genera, seven families and five orders were collected from seven locations. The cyprinid fish represented 62.20% of the total fish caught and was found in all the rivers surveyed. About six endemic species in Borneo such as Barbonymus collingwoodii, Barbodes banksi, Barbodes sealei, Hampala bimaculata Nematabramis borneensis and Nematabramis everetti were identified. However, only one species from families Bagridae, Balitoridae, Clariidae, and Hemiramphidae was sampled from the study sites. The higher fish species composition found in streams and rivers of the oil palm plantation landscapes could be attributed to the conservation of some areas of the plantation as high conservation value forest (HCVF) status, which have provided suitable habitat for fish species within the plantation aquatic environments.

Estuarine characteristics, water quality and heavy metal contamination as determinants of fish species composition in intermittently open estuaries

2017 ◽  
Vol 68 (5) ◽  
pp. 941 ◽  
Author(s):  
K. O'Mara ◽  
A. Miskiewicz ◽  
M. Y. L. Wong
Keyword(s):  
Water Quality ◽  
Species Composition ◽  
Fish Species ◽  
Metal Contamination ◽  
Fish Assemblages ◽  
Anthropogenic Activities ◽  
Estuarine Fish ◽  
Fish Diversity ◽  
Eastern Australia ◽  
Fish Species Composition

Estuaries are critical aquatic environments that are used by many fish during their life cycle. However, estuaries often suffer from poor water quality as a result of anthropogenic activities. Fish diversity studies in estuaries are common, although few have examined whether correlations exist between water quality, metal contamination and fish assemblages. In the present study we investigated the effect of abiotic conditions, heavy metals and estuary characteristics on the abundance, diversity and composition of fish in four intermittently open estuaries along the Illawarra coast of south-eastern Australia. The heterogeneity of environmental conditions was reflected in the fish assemblages in each estuary. Environmental variables predicted fish species composition, and estuaries in particularly poor condition contained few species (estuarine residents) in high abundance, indicating their ability to acclimatise and survive in conditions that are hostile to other species. Overall, these findings demonstrate that estuarine fish assemblages may be useful indicators of estuary condition and reveal the importance of managing anthropogenic activities in the surrounding catchment to improve water quality so that biodiversity of fish can be restored in these estuarine environments.

scholarly journals Fish Diversity of Jagadispur Reservoir, Kapilbastu District, Nepal-a Ramsar Site

1970 ◽  
Vol 11 ◽  
pp. 229-234
Author(s):  
Deependra Gautam ◽  
Tej Bahadur Saund ◽  
Jiwan Shrestha
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Systematic Position ◽  
Quality Parameters ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Fish Diversity ◽  
Ramsar Site ◽  
Reservoir Water ◽  
Catch Composition

A total of 2273 fishes were captured from Jagadispur reservoir, one of the Ramsar sites of Nepal using gill nets. Forty-two fish species belonging to 6 orders, 18 families and 34 genera were recorded during the investigation period from the reservoir and listed with their nomenclature and systematic position. Cypriniformes and Cyprinidae were the dominant Orders and family in terms of species composition as well as catch composition respectively. Nandus nandus was the most dominant fish species accounting 16.50% of the total catch which is an indication of deteriorating water quality. However, water quality parameters (surface water temperature: 20.7°C–31°C; pH: 6.8– 7.6; dissolved oxygen: 5.2mg/l–8.7mg/l; free carbondioxide: 11.1mg/l–23.6mg/l; total hardness: 68.2mg/l–137.5mgl; total alkalinity: 69.6mg/l–192mg/l) were observed within a desirable range supporting warm water fish species. Key words: fish diversity; gill net; Ramsar site; reservoir; water quality DOI: 10.3126/njst.v11i0.4150Nepal Journal of Science and Technology 11 (2010) 229-234

scholarly journals Study on suitability of Derawan Island as marine tourism destination towards development of sustainable tourism in the new capital city candidate of Indonesia

2021 ◽  
Vol 890 (1) ◽  
pp. 012072
Author(s):  
O R Simarangkir ◽  
P B Utami ◽  
Ricky ◽  
Nani ◽  
F Tawang ◽  
...  
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Sustainable Tourism ◽  
Coral Community ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Capital City ◽  
Index Formula ◽  
Marine Tourism ◽  
Suitability Index

Abstract Derawan Island is one of the leading tourist destinations in Kalimantan Timur Province which is a candidate for the new capital city of Indonesia. Marine tourism on Derawan Island relies on the potential of marine resources so that a suitability study is needed for the development of sustainable tourism. This study aims to determine the suitability of marine tourism, especially the interest in diving and snorkeling in sites of Derawan Island. Data collection was carried out by surveying in December 2020 at five snorkeling and six popular dive sites in Derawan Island. Data on coral community, the number of coral fish species, and the water quality parameters are used to analyze the suitability of marine tourism. Line Intercept Transect (LIT) method was used to collecting coral community data, Underwater Visual Census (UVC) method was used to collect data on the abundance of reef fish species, and in situ water quality parameters. Tourism suitability index formula (IKW) using the four classification marine tourism suitability matrix was used to analyze the data. The results of the analysis show the suitability index for diving tourism as a whole is in suitable to very suitable category, while the snorkeling tourism suitability index is in the suitable category.

Genotoxic effects on fish species and water quality parameters of two tributaries of the Sinos River, Southern Brazil

2018 ◽  
Vol 21 (3/4) ◽  
pp. 161 ◽  
Author(s):  
Thaís Dalzochio ◽  
Leonardo Airton Ressel Simões ◽  
Mateus Santos De Souza ◽  
Gabriela Zimmermann Prado Rodrigues ◽  
Lucas José Schvambach ◽  
...  
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Southern Brazil ◽  
Genotoxic Effects

scholarly journals Intensification of “mola” (Amblypharyngodon mola) culture in homestead ponds

2020 ◽  
Vol 9 (2) ◽  
pp. 23-29
Author(s):  
SN Mona ◽  
S Sultana ◽  
KK Ahmed ◽  
N Khan ◽  
KA Huq ◽  
...  
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Stocking Density ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Culture Period ◽  
Total Biomass ◽  
Supplementary Feed ◽  
By Products ◽  
Indigenous Fish Species

The research was carried out with small indigenous fish species (SIS) named mola (Amblypharyngadan mola) in monoculture system to intensify production in farmers’ homestead ponds with 50% household women involvement during June to December, 2016. Brood mola was stocked at the rate of 2, 4 and 6 m-2 with three replications in each treatment. Supplementary feed (27.1% protein) consisted of commonly available agricultural by-products was provided daily at the rate of 2% of the total biomass along with natural feed as mola is planktivorous species. Seven different water quality parameters were measured fortnightly and found within cultivable range. Gross production of mola were obtained 520.59±23.4, 599.06±258.87, 1063.94±42.87 kg ha-1 from T1, T2 and T3, respectively after 4 months’ culture period. The yield of T3 was significantly greater (P < 0.05) than T1 and T2. The highest gross production was obtained in T3 where stocking density was 6 brood mola m-2. Int. J. Agril. Res. Innov. Tech. 9(2): 23-29, December 2019

scholarly journals Measured Copper Toxicity toCnesterodon decemmaculatus(Pisces: Poeciliidae) and Predicted by Biotic Ligand Model in Pilcomayo River Water: A Step for a Cross-Fish-Species Extrapolation

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
María Victoria Casares ◽  
Laura I. de Cabo ◽  
Rafael S. Seoane ◽  
Oscar E. Natale ◽  
Milagros Castro Ríos ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Fish Species ◽  
Toxicity Test ◽  
Copper Toxicity ◽  
Quality Parameters ◽  
Biotic Ligand Model ◽  
Biotic Ligand ◽  
Species Extrapolation ◽  
Ligand Model

In order to determine copper toxicity (LC50) to a local species (Cnesterodon decemmaculatus) in the South American Pilcomayo River water and evaluate a cross-fish-species extrapolation of Biotic Ligand Model, a 96 h acute copper toxicity test was performed. The dissolved copper concentrations tested were 0.05, 0.19, 0.39, 0.61, 0.73, 1.01, and 1.42 mg CuL-1. The 96 h Cu LC50 calculated was 0.655 mgL-1(0.823-0.488). 96-h Cu LC50 predicted by BLM forPimephales promelaswas 0.722 mgL-1. Analysis of the inter-seasonal variation of the main water quality parameters indicates that a higher protective effect of calcium, magnesium, sodium, sulphate, and chloride is expected during the dry season. The very high load of total suspended solids in this river might be a key factor in determining copper distribution between solid and solution phases. A cross-fish-species extrapolation of copper BLM is valid within the water quality parameters and experimental conditions of this toxicity test.

scholarly journals PLS REGRESSION TO COMPARE THE RELATIVE IMPORTANCE OF WATER QUALITY VARIABLES IN FISH GROWTH

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Job Ombiro Omweno ◽  
Albert Getabu ◽  
Paul Sagwe Orina ◽  
Simion Kipkemboi Omasaki ◽  
Wilfred Obwoge Zablon
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Fish Growth ◽  
Parameter Analysis ◽  
Pls Regression ◽  
Growth Difference ◽  
Ordinary Regression ◽  
Baseline Information ◽  
Novel Concept ◽  
Species Being

Partial least squares (PLS) is a multivariate dimension reduction technique which is not based on ordinary regression assumptions. The use of PLS regression in life sciences is still a novel concept despite many scientific applications. This paper analyses the influence of physicochemical in the two fish species, Oreochromis jipe and Oreochromis niloticus to determine the cause for their growth difference in the same culture environment. The graphical display of the multi-parameter analysis was performed using a suite of open access R-software packages. The modeling hypothesis was assessed using experimental data collected for the period of 84 days. The findings revealed that significant linear relationship exists between water quality and mean weight of both O. jipe and O.niloticus fish species. Being a crucial study meant to provide baseline information to asses the aquaculture potential O. jipe, we recommend a further study to be conducted on several other predictor variables that can be measured under controlled aquaculture conditions.

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.

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