scholarly journals Predicting potential freshwater fish fauna around afflicted area by heavy rain disaster in the Chikugo river system on July, 2017.

2020 ◽  
Vol 23 (1) ◽  
pp. 171-183
Author(s):  
Norio ONIKURA ◽  
Jun NAKAJIMA
Keyword(s):  
Freshwater Fish ◽  
Fish Fauna ◽  
River System ◽  
Heavy Rain ◽  
Freshwater Fish Fauna ◽  
Chikugo River

scholarly journals Freshwater fish fauna of Hiranyakeshi River, the northern Western Ghats, India

2017 ◽  
Vol 9 (5) ◽  
pp. 10178
Author(s):  
Pradeep Kumkar ◽  
Sanjay S. Kharat ◽  
Nitin S. Sawant ◽  
Unmesh Katwate ◽  
Neelesh Dahanukar
Keyword(s):  
Freshwater Fish ◽  
Western Ghats ◽  
Fish Fauna ◽  
Industrial Effluents ◽  
River System ◽  
Iucn Red List ◽  
Good Population ◽  
Freshwater Fish Fauna ◽  
True Diversity ◽  
The Western Ghats

The freshwater fish fauna of Hiranyakeshi River, a tributary of the Krishna River System, originating in the Western Ghats of Maharashtra, was studied for a period of three years from 2013–2016.  We reported 57 species belonging to seven orders, 17 families and 42 genera.  Cypriniformes was the most species rich order followed by Siluriformes, while Cyprinidae was the most predominant family.  At least 21 freshwater fish species found in Hiranyakeshi River are endemic to river systems originating from the Western Ghats, while nine species are endemic to the Krishna River system.  The true diversity of freshwater fishes in this region, however, is still obscure because of lack of detailed taxonomic studies in this region.  Of the total species, at least 11 are in the threatened and near threatened categories of the IUCN Red List and Hiranyakeshi River holds a good population of most of these species.  The fish fauna in this region, however, is threatened by several stressors including invasive fishing practices, water impediment due to upcoming dams, invasive introduced species and water pollution due to agricultural runoffs and industrial effluents.

scholarly journals On the freshwater fish fauna of Krishna River, Sangli District, Maharashtra, India

2021 ◽  
Vol 13 (8) ◽  
pp. 19093-19101
Author(s):  
Suresh M. Kumbar ◽  
Shrikant S. Jadhav ◽  
Swapnali B. Lad ◽  
Abhijit Ghadage ◽  
Satyawan S. Patil ◽  
...  
Keyword(s):  
Freshwater Fish ◽  
Threatened Species ◽  
Conservation Status ◽  
Fish Fauna ◽  
River System ◽  
Iucn Red List ◽  
Cauvery River ◽  
Freshwater Fish Fauna ◽  
Data Deficient ◽  
First Time

Freshwater fish fauna of Krishna River, Sangli district was studied from 2013 to 2017. A total of 73 species belonging to 10 orders, 22 families, and 49 genera were recorded, of which, 29 species are endemic to the Western Ghats and 11 species endemic to the Krishna River system. Labeo kontius, an endemic barb of the Cauvery River System was recorded for the first time from the Krishna River, Maharashtra. As per the IUCN Red List of Threatened Species, 54 species are assessed as ‘Least Concern’, four species as ‘Near Threatened’, three species as ‘Vulnerable’, five as ‘Endangered’, and two as ‘Data Deficient’. The conservation status of two species has not yet been assessed. Fish fauna of the Krishna River within the study area is threatened as a result of alien species, and several anthropogenic stressors such as pollution from industrial as well as agricultural sources, human settlements, and overfishing.  Since, this small study area harbours 28 endemic and eight threatened species, their conservation should be given high priority.

scholarly journals Iktiofauna air tawar Pulau Enggano, Indonesia

2018 ◽  
Vol 17 (3) ◽  
pp. 273
Author(s):  
Renny Kurnia Hadiaty ◽  
Sopian Sauri
Keyword(s):  
Resource Management ◽  
Freshwater Fish ◽  
Field Survey ◽  
Fish Fauna ◽  
Basic Data ◽  
Outer Island ◽  
Freshwater Fish Fauna ◽  
Taxonomical Status

Enggano is an outer island of the archipelago country, Indonesia. A field survey of freshwater fish fauna conducted in Enggano island to get the information of the ichthyofauna of this island. The fish collected in 11 freshwaters. We got 457 fish specimens of 28 species in 11 families and three orders. One species, Stiphodon sp. suspected to be new to science and five species require further study to clarify their taxonomical status. All of the fish collected specimens deposited in 77 catalog numbers of Museum Zoologicum Bogoriense (MZB). The ichthyofauna of this island could be use as the basic data for the resource management of the Enggano island. AbstrakPulau Enggano merupakan satu pulau terluar dari negara kepulauan, Indonesia. Survei ikan air tawar dilakukan di Pulau Enggano dengan tujuan untuk mendapatkan informasi iktiofauna yang ada di pulau ini. Koleksi sampel ikan dilakukan di 11 perairan tawar. Kami memperoleh 457 spesimen dari 28 spesies yang termasuk dalam 11 famili dan 3 ordo. Satu jenis diantaranya, Stiphodon sp. diduga merupakan jenis baru dan lima jenis lainnya perlu dikaji lebih lanjut untuk mengetahui status taksonominya. Semua spesimen hasil koleksi dideposit di Museum Zoologicum Bogoriense (MZB) dalam 77 nomor MZB. Diharapkan data iktiofauna pulau ini dapat digunakan sebagai dasar pertimbangan pemerintah daerah dalam pengelolaan sumber daya P. Enggano.

scholarly journals Decline in New Zealand's freshwater fish fauna: Effect of land use

2020 ◽  
Author(s):  
Michael Joy ◽  
KJ Foote ◽  
P McNie ◽  
M Piria
Keyword(s):  
New Zealand ◽  
Land Cover ◽  
Freshwater Fish ◽  
Native Species ◽  
Species Abundance ◽  
Fish Fauna ◽  
Fish Distribution ◽  
Individual Species ◽  
Freshwater Fish Fauna ◽  
Over Time

© 2019 CSIRO. The number of New Zealand's freshwater fish listed as threatened has increased since 1992 when the first New Zealand threat classification system list was compiled. In this study, temporal and land cover-related trends were analysed for data on freshwater fish distribution, comprising more than 20 000 records for the 47 years from January 1970 to January 2017 from the New Zealand Freshwater Fish Database. The analysis included individual species abundance and distribution trends, as well as an index of fish community integrity, namely the Index of Biotic Integrity (IBI). Of the 25 fish species that met the requirements for analysis to determine changes in the proportion of sites they occupied over time, 76% had negative trends (indicating declining occurrence). Of the 20 native species analysed for the proportion of sites occupied over time, 75% had negative trends; 65% of these were significant declines and more species were in decline at pasture sites than natural cover sites. The average IBI score also declined over the time period and, when analysed separately, the major land cover types revealed that the IBI declined at pasture catchment sites but not at sites with natural vegetation catchments.

DNA barcoding and phylogenetics of freshwater fish fauna of Ranganadi River, Arunachal Pradesh

Gene ◽  
2020 ◽  
Vol 754 ◽  
pp. 144860
Author(s):  
Pramod Kumar Pandey ◽  
Yambem Suresh Singh ◽  
Partha Sarathi Tripathy ◽  
Ram Kumar ◽  
Santosh Kumar Abujam ◽  
...  
Keyword(s):  
Freshwater Fish ◽  
Dna Barcoding ◽  
Fish Fauna ◽  
Arunachal Pradesh ◽  
Freshwater Fish Fauna

The effects of acidification on Scandinavian freshwater fish fauna

1984 ◽  
Vol 305 (1124) ◽  
pp. 517-528 ◽  
Keyword(s):  
Freshwater Fish ◽  
Surface Area ◽  
Aquatic Ecosystems ◽  
Fish Fauna ◽  
Fish Populations ◽  
Lake Surface ◽  
Southwest Coast ◽  
Freshwater Fish Fauna ◽  
Lake Surface Area ◽  
Southern Norway

Acidification of freshwaters have inflicted a m ajor perturbation on Scandinavian aquatic ecosystems as indicated by severe regional loss of fish populations. This decline was first noted in the early 1920s but became particularly severe after W orld W ar II in the 1950s and 1960s. In southern Norway regional dam age is now docum ented in an area of 33000 km 2 , 13000 km 2 of which are devoid offish. Several m ajor southern salmon rivers are now barren. In Sweden more than 2500 lakes are docum ented to be affected. This corresponds to 3 -4 % of the total lake surface area. An additional 6000 lakes are assumed to be affected by acidification. Population losses are also found in thousands of kilometres of running w ater as well as in salmon and seatrout rivers on the southwest coast. This paper describes the early observations, chronology of this decline and reviews possible causes and mechanisms. The acidification and the associated loss of fishstocks over vast areas is apparently the most devastating change recorded for the fish fauna of Scandinavia

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