scholarly journals Fish Diversity of the Vatrak Stream, Sabarmati River System, Rajasthan

2017 ◽  
Vol 117 (3) ◽  
pp. 214
Author(s):  
Harinder Singh Banyal ◽  
Sanjeev Kumar
Keyword(s):  
River System ◽  
Fish Diversity ◽  
Sabarmati River

High prevalence of non-native fish species in a remote region of the Mamberamo River, Indonesia

2020 ◽  
Vol 26 (3) ◽  
pp. 293
Author(s):  
Arif Wibowo ◽  
Dwi Atminarso ◽  
Lee Baumgartner ◽  
Anti Vasemagi
Keyword(s):  
Native Species ◽  
River System ◽  
New Guinea ◽  
Current Status ◽  
Native Fish ◽  
Fish Diversity ◽  
Main River ◽  
Main River Channel ◽  
High Prevalence ◽  
Major River

Indonesian freshwater fish diversity is threatened by human activities such as logging, land clearing, pollution and introduction of non-native species. The latter may pose serious threats to endemic freshwater fauna even in relatively pristine and isolated habitats. One such area, West Papua in the island of New Guinea, is one of the least studied regions in the world and a biodiversity hotspot. The Mamberamo River contains the highest proportion of non-native fish compared to other major river systems in New Guinea. To document this, we conducted a field study to validate and further temporally characterise the fish biodiversity to ascertain its current status. Since the last ichthyological survey 15 years ago, we detected two additional non-native species (Leptobarbus melanopterus and Oreochromis niloticus) that have established in the river system. Moreover, our survey revealed that non-native fish are extremely common in the mid reaches of the Mamberamo River, comprising 74% of total catch, with non-native Barbonymus gonionotus (family Cyprinidae) now established as the dominant species. The biomass of non-native B. gonionotus now exceeds that of all native fish combined in the main river channel. These results highlight the serious threat of invasive species in remote regions that support high levels of endemic biodiversity. Plans for containment, prevention through education programmes, and management are urgently required.

scholarly journals First record of exotic alligator gar, Atractosteus spatula (Actinopterygii: Lepisosteiformes: Lepisosteidae), from Ganga River system, India: A possible threat to indigenous riverine fish diversity

2021 ◽  
Vol 51 (4) ◽  
pp. 385-391
Author(s):  
Ranjan Kumar Manna ◽  
Archisman Ray ◽  
Supriti Bayen ◽  
Tanushree Bera ◽  
Debashis Palui ◽  
...  
Keyword(s):  
Environmental Parameters ◽  
River System ◽  
First Record ◽  
Ganga River ◽  
Predatory Fish ◽  
Fish Diversity ◽  
Exotic Fish ◽  
Alligator Gar ◽  
Riverine Fish ◽  
Atractosteus Spatula

A new record of an exotic alligator gar, Atractosteus spatula (Lacepède, 1803), from an open wetland of the Ganga River was presented in this paper and discussed along with the environmental parameters. Entry of the exotic fish into the natural system was probably a result of uncontrolled ornamental fish trading. Considering threats of this predatory fish to become invasive and disturb riverine fish diversity, possible ways to avoid such risk have been discussed.

scholarly journals Ichthyofaunal diversity of the Omo-Turkana basin, East Africa, with specific reference to fish diversity within the limits of Ethiopian waters

Check List ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 2059 ◽  
Author(s):  
Mulugeta Wakjira ◽  
Abebe Getahun
Keyword(s):  
Native Species ◽  
River System ◽  
Specific Reference ◽  
Fish Diversity ◽  
East African ◽  
Lake Turkana ◽  
Turkana Basin ◽  
Northern Portion ◽  
Omo River ◽  
Annotated Checklist

The freshwaters of the East African nation of Ethiopia are divided into nine main drainage basins. One of these, the Omo-Turkana basin, spans a large part of southwestern Ethiopian highlands and northern Kenya, and consists of the Omo-Gibe (or simply, Omo) River and a northern portion of Lake Turkana. Despite some development activities, including proposed dam construction with potential impacts on ichthyofaunal diversity, the Ethiopian part of the basin generally lacks comprehensive study or full scientific documentation. During the current surveys 31 species were identified from the lower Omo River and Ethiopian part of Lake Turkana, with some new records for the basin. The Omo River system was found to be richer in species while Lake Turkana has a higher abundance. Ichthyofaunal diversity within Ethiopian waters is specifically addressed, and an annotated checklist for native species of the basin is provided.

scholarly journals Fish species using the fish passage between Jamuna and Bangali river at Sariakandi, Bogra

2020 ◽  
Vol 5 (2) ◽  
pp. 53-62
Author(s):  
M Zaman ◽  
MN Naser
Keyword(s):  
Focus Group ◽  
Fish Species ◽  
Group Discussion ◽  
River System ◽  
Fish Passage ◽  
Fish Diversity ◽  
Fish Migration ◽  
Migration Routes ◽  
North West ◽  
Fish Pass

Sariakandi fish pass is unique connecting Jamuna and Bangali rivers through an engineered channel. A study was conducted on the fish pass aiming to improve fish diversity in north-west Bangladesh. Sampling at the fish pass, market census, interviewing the locals and focus group discussion were done to collect data from the study area. A total of 69 fish species under 9 orders and 26 families were recorded. Cypriniformes (22 species) was the most dominant order followed by Siluriformes (21 species), Perciformes (13 species), Clupeiformes (4 species), Synbranchiformes (4 species), Osteoglossiformes (2 species), Mugiliformes (1 species), Anguilliformes (1 species) and Tetraodontiformes (1 species). In total 30 threatened species in Bangladesh and globally recognized 9 species were recorded. This fish pass is not working during the dry or winter seasons but helps in the diversified fish migration diversity of Bengali and Jamuna river system during the flood time of Bangladesh. The present study recommends establishing effective fish passages in flood protection structures or dams in Bangladesh to retain the connectivity of fish migration routes and the improving of fish diversity. J. Biodivers. Conserv. Bioresour. Manag. 2019, 5(2): 53-62

scholarly journals Fish, upper Purus River, state of Acre, Brazil

Check List ◽  
2008 ◽  
Vol 4 (2) ◽  
pp. 198 ◽  
Author(s):  
Helio Daniel Beltrão Dos Anjos ◽  
Jansen Zuanon ◽  
Tony Marcos Porto Braga ◽  
Keid Nolan Silva Sousa
Keyword(s):  
Fish Species ◽  
New Records ◽  
Fish Fauna ◽  
River System ◽  
Complete Picture ◽  
Fish Diversity ◽  
Sampling Effort ◽  
Rivers State

The ichthyofauna of the headwaters of the main tributaries of the mighty Solimões/Amazonas River  has been little studied. Considering the importance of those environments for the overall fish  diversity in that river system, we surveyed the composition of the fish fauna of the upper portion  of Purus River and two of its tributaries (Caeté and Macapá rivers), state of Acre, Brazil. The collections were done in November 2004, using a seine net and a set of gillnets of different mesh  sizes. A total of 735 specimens belonging to 86 species and 28 families were collected. Eight  species, Creagrutus occidaneus, Phenacogaster pectinatus, Prionobrama filigera, Moenkhausia cf.  lepidura, Leptagoniates pi (Characidade), Henonemus punctatus (Trichomycteridae), Toracocharax  stellatus (Gateropelecidae), and Eigenmannia macrops (Sternopygidae) composed nearly half of the  specimens collected. This survey adds 48 new records to the ichthyofauna of Purus River and  elevates to 243 the number of known fish species in that river, but a greater sampling effort is necessary to produce a reasonably complete picture of the fish diversity in the basin.

scholarly journals Inventory of the fish fauna from Laranjinha River, Paranapanema River system, Brazil

2020 ◽  
Vol 20 (4) ◽  
Author(s):  
Bruno Ambrozio Galindo ◽  
Renata Rúbia Ota ◽  
Thiago Deruza Garcia ◽  
Raul Henrique Cardoso Nascimento ◽  
Willian Massaharu Ohara ◽  
...  
Keyword(s):  
Native Species ◽  
Fish Fauna ◽  
River System ◽  
Abundant Species ◽  
Iucn Red List ◽  
Fish Diversity ◽  
Migratory Species ◽  
Absolute Abundance ◽  
Average Abundance ◽  
Comprehensive Survey

Abstract: This work is the most comprehensive survey of the Laranjinha River´s fishes, a tributary of the Cinzas River, Paranapanema River basin. Throughout its course, there is only a low-height dam, including a transposition system located 98 km from its mouth. The sampling was carried out in nine locations, from the source to the mouth, with six field incursions in each location, using different fishing gear. A total of 11,924 fish were collected, distributed in seven orders, 27 families, and 100 species. The most representative order in the number of species was Siluriformes, followed by Characiformes. As for the families, Loricariidae comprised 21% and Characidae 14% of species richness. Phalloceros harpagos was the species with the highest absolute abundance, representing 11.3% of the total, followed by Hypostomus ancistroides with 9.8%. However, considering the average abundance and frequency of occurrence, Hypostomus ancistroides was the most abundant species, followed by Hypostomus cf. paulinus, Psalidodon aff. paranae and Phalloceros harpagos. Among the collected species, the Apteronotus acidops, Brycon orbygnianus, Brycon nattereri, Crenicichla jupiaensis, and Rhinelepis aspera were classified as endangered on the most recent IUCN Red List. Also, from the total sampled fish, 9.8% are considered non-native species. Among the native species recorded, 10 species are large migratory species, which indicates that the Laranjinha River is a route for spawning and maintenance of species diversity in the middle Paranapanema River. Therefore, the Laranjinha River is a heritage of fish diversity and deserves special attention in its preservation.

scholarly journals Flood Pulse and Aquatic Habitat Dynamics of The Sentarum Floodplain Lakes Area

2021 ◽  
Vol 1 (1) ◽  
pp. 27-37
Author(s):  
Hidayat Hidayat ◽  
Siti Aisyah ◽  
Riky Kurniawan ◽  
Iwan Ridwansyah ◽  
Octavianto Samir ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Level ◽  
River System ◽  
Aquatic Habitat ◽  
Middle Part ◽  
Floodplain Lakes ◽  
Water Levels ◽  
Line Transect ◽  
Fish Diversity ◽  
Lake Area

The Lake Sentarum is a complex of floodplain lakes in the middle part of the Kapuas River system in West Kalimantan, Indonesia. The area has a great ecological and economic importance, however, the Sentarum lakes complex and its catchment area are generally threatened by deforestation, fire, monoculture agroindustry, and pollution.The objective of this research is to establish the hydrological characteristics of the Sentarum lakes area and to reveal the dynamics of aquatic habitat resulted from changing water levels. Data were collected during our field campaigns of 2013-2017 representing the seasons. The water level was measured using a pressure sensor placed at the Lake Sentarum National Park resort, while rainfall data were obtained from the data portal of the Tropical Rainfall Measuring Mission. Inundation monitoring was carried out using a time-lapse camera. A hydrological model is used to simulate water levels beyond measurement period. Water quality and fish sampling were carried out at the lake area. Vegetation observation was carried out at the selected riparian zone of the lake area using the line transect method. Water level records show that the Sentarum floodplain lakes have two peaks of inundation period following the bimodal pattern of rainfall in the equatorial Kapuas catchment. This water level dynamics induced changes in water quality, nutrient availability, vegetation cover, and fish diversity found in the Sentarum lakes area. Despite its seasonal changes, water quality of Sentarum lakes is generally good and suitable for aquatic biota. Fish diversity of the Sentarum lakes is relatively higher during high water periods.

The Response of Fish Diversity in a Highly Modified Large River System to Multiple Anthropogenic Stressors

2019 ◽  
Vol 124 (2) ◽  
pp. 384-404 ◽  
Author(s):  
Jason A. DeBoer ◽  
Martin C. Thoms ◽  
Andrew F. Casper ◽  
Michael D. Delong
Keyword(s):  
River System ◽  
Large River ◽  
Fish Diversity ◽  
Anthropogenic Stressors
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