Diversity of Catfish (Teleostei: Siluriformes) in rivers of Kolodyne drainage of Mizoram, Northeastern India (original) (raw)
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Zoos' Print Journal, 2007
Extensive ichthyological field survey conducted from 1996 to 2006 in the major rivers of Mizoram, Tripura and Barak drainage (in Assam and partly in Manipur) revealed the occurrence of bewildering diversity of fishes. Of these, the rivers in Mizoram revealed 42 species in river Tuirial, 42 species in river Kolodyne, 31 species in river Karnafuli, 25 species in river Mat, 36 species in river Tlawng, nine species in river Tuirini, 14 species in river Serlui and 23 species in river Tuivai. The rivers in Tripura reflected 28 species in Manu, 22 species in Khowai, 53 species in Gomati, and 22 species in Feni. In Barak drainage, river Barak portrayed 65 species (including collections from the proximity of its origin in Karong, Manipur), river Jatinga 61 species, river Sonai 54 species and river Dhaleswari 32 species. Declaration of 'aquatic sanctuaries' for the conservation of rare and endangered fishes like the mahseers have been strongly suggested in the paper.
This paper communicates the extension of the distribution range of Batasio merianiensis in Sille River in the upper Brahmaputra drainage, East Siang District, Arunachal Pradesh. Detailed examinations of the specimens revealed existence of few morphological variations against those reported by Heok Hee Ng in 2009 on the following characteristics: by having a longer preanal (70.4-73.4 vs. 66.3-68.2% SL); a longer prepectoral (25.1-29.3 vs. 21.4-25.7% SL); a longer adipose-fin base (22.0-27.6 vs. 16.9-22.2% SL); a shorter post-adipose distance (11.6-13.4 vs.13.4-15.5% SL); a deeper body at anus (depth 18.3-20.8 vs.15.2-18.4% SL) and broader head (width 17.6-20.0 vs.13.5-16.2 % HL). Few additional characters of the fish are included along with brief information on its habitat. The LIPUM, the semitraditional method of fishing in the river is identified as a major threat to this species.
FISH FAUNAL DIVERSITY OF BHIMA RIVER AT PEDGAON, SHRIGONDA (AHMEDNAGAR DISTRICT
International Publication, 2018
Fish are the gill-bearing aquatic craniates that lack limbs with digits. They form a sister group to the tunicates, together forming the olfactores. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. The present study was conducted in the months of October 2017 to January 2018. With weekly visit at the Bhima river, pedgaon site having geographical coordinates 18˚ 30' 48.6" N and 74˚ 42' 53.8" E. In the present investigation, 26 fish species belonging to 07 families were reported from Bhima River. The family Cyprinidae was dominant with 12 species followed by Siluridae with 06 species, Percidae with 04 species and Notopteridae, Ambassidae, Clariidae and Loricariidae with 01 species each. One exotic species that have been reported by us during our study is Pteryoplichthys pardalis commonly known as Amazon sailfin catfish.
Systematic Studies on the Catfishes of Sasthamcottah Lake of Kerala, India
The present study was conducted to analyze the systematic aspects of catfishes occurring in the Sasthamcottah Lake of Kerala, India. Preliminary taxonomic studies were conducted on the fishes of the genera Horabagrus, Mystus, Wallago, Ompok, Clarias and Heteropneustes. The fishes were examined for meristic counts and metric characters. Studies were also conducted on the diversity and classification of these fishes.
Fishes Under the Order Siluriformes Available in the Inland Water of Mymensingh Region, Bangladesh
A study was conducted to find out the threatened fishes under the Order Siluriformes available in the inland water of Bangladesh. This study was conducted from October 2010 to September 2011. Data were collected from greater Mymensingh region (Mymensingh and Netrokona districts). The study was based on frequent visits of different markets located in the selected area. Five markets of Mymensingh district were visited for 12 times each. Durgapur bazaar in Netrokona district was also visited for two times. According to the available literatures the number of available catfishes in Bangladesh was supposed to be around 59. However, 19 species under seven families were observed during the study period. There are 13 families under the Order Siluriformes but fishes under 7 families (Bagridae, Clariidae, Heteropneustidae, Pangasiidae, Schilbeidae, Siluridae and Sisoridae) were found from the study area. The highest number of catfish (7) was observed from the family Bagridae. No member was found from the family Amblycipitidae, Ariidae, Chacidae, Erethistidae, Olyridae and Plotosidae. According to IUCN Bangladesh National Categories, the study found 4 Critically endangered (CR), 5 Endangered (EN), 1 Vulnerable (VU) and 9 Not threatened (NO) catfish species. Present biodiversity status of the observed catfishes is slightly different from IUCN status. Among the 19 species found, 6 were considered as Not threatened (32%) and 13 as threatened (68%) of which 3 Endangered (16%) and 10 Vulnerable (52%). The less availability of some catfishes and at the same time non availability of some other catfishes are the alarming sign of loss of biodiversity in catfishes not only in the study area but also in the whole country.
Distribution and Conservation Status of Catfishes in Alwara Lake of District Kaushambi (U.P
International Journal on Environmental Sciences, 2016
Fish diversity is a good index of healthy, growing, dynamic and economically efficient water body. An attempt was made to study the fish fauna naturally occurring in Alwara lake of district Kaushambi, Uttar Pradesh during all the 12 months of year 2014. During exploration, a total of 89 species of fishes belonging to 45 genera, 21 families and 9 orders were identified. Out of which, 18 species of catfishes belonging to 6 families of order Siluriformes were recorded. As per latest version of IUCN Red List, out of 18 species of catfishes identified, 3 species come under NT (near threatened), 12 under LC (least concern) and 3 species are NE (not evaluated) so far.
Transylvanian Review of Systematical and Ecological Research, 2020
Ichthyofauna surveys in Diyung, Vomvadung, Khualzangvadung, Tuikoi, and Mahur rivers under Dima Hasao District of Assam resulted in the first report of 21 species of fish belonging to 19 genera, eight families, and four orders. These include Cypriniformes, Siluriformes, Synbranchiformes, and Perciformes. The species composition is highest in Vomvadung River with 11 species, followed by Diyung with eight species, Khualzangvadung with six species, Mohur with three species, and Tuikoi with two species. The conservation status of Systomus clavatus, Tor tor, Neolissochilus hexagonolepis, Neolissochilus hexastichus is near threatened, and Pterocryptis barakensis is endangered.