Sone Beel Wetland in Asia Amidst Global Scenario

Wetlands play an undebatable role in regulating the global climate, hydrological cycle and ecosystem diversity; and, therefore, must be preserved and conserved. Conversely, global wetland area and water quality has since been declining (c 87% around the globe since 1700 AD), mainly due to human interference accompanied by natural succession process. Under this backdrop, physical, chemical, biological and ichthyologic features and fisher folk (following standard procedures of study) of the Asian wetland Sone Beel has been focused as a typical case study in the global scenario. Threats to the to Ramsar sites along with their categorization has also been discussed on a global scenario

Fishes in the Upstream Rheophilic Stretch of River Barak at Karong

11 species of fishes belonging to 8 genera, 4 families and 3 Orders have been recorded. The cyprinids were the most abundant group. The contribution of cyprinids to the total fish collection depicts its highest (96.87 %) contribution in river Barak at Karong. Among the cyprinids, Barilius bendelisis and Crossocheilus burmanicus depicted the bulk of abundance (19.35 and 33.87 % respectively) in river Barak at Karong

Studies on trematode parasites of air breathing fishes of Awangsoi Lake, Manipur

The present investigation deals with a systematic survey of trematode parasites of air breathing fishes from Awangsoi Lake collected during 2008-2009. The air breathing fishes found in Awangsoi Lake are Channa punctatus, Clarias batrachus, Channa striatus, Channa orientalis, Anabas testudineus and Heteropneustes fossilis. During the study period the following 5 species of trematodes were collected : Clinostomum complanatum, Allocreadium handia, Allocreadium fasciatusi, Astiotrema reniferum and Genarcopsis goppo. The percentage of abundance was found to be maximum in Astiotrema reniferum and Anabas testudineus harbours the maximum number of parasites

Studies on nematode parasites of fishes of Oinam lake Bishnupur district, Manipur, India

An extensive survey was done for fish nematode parasites of few economically important fishes of Oinam Lake, Bishnupur district, Manipur. 9 species of nematodes were encountered. They are Camallanus anabantis, Procamallanus (Procamallanus) saccobranchi, Paraquimperia manipurensis, Paragendria sp., juvenile stages of genus Syphacia, Haplonema, Spinitectus, Philometra and Parascarophis etc. Of these nematode species, Procamallanus (Procamallanus) saccobranchi, Paragendria sp and Haplonema sp. showed maximum abundance (14.28%) and Paraquimperia manipurensis, Parascarophis sp. showed minimum abundance (4.76%) of parasites. Among the fish species Anabas testudineus had highest percentage (50%) of parasites and Puntius sophore and Colisa labiosus had lowest percentage (1.25%) of parasites

Seasonal variation of the nematode Camallanus anabantis in the fish Anabas testudineus in Loktak Lake, Manipur, India

The present paper deals with the study of the seasonal variation on the occurrence of the Nematode Camallanus anabantis from the fish host Anabas testudineus from Loktak Lake, Manipur during May 2010- April 2011. A total of 460 number of A. testudineus has been sampled for the parasite infection and 335 fishes (71 %) has been found to be infected with the nematode thereby indicating high prevalence of infection of the nematode parasites in the fish

Correlation of water’s physico-chemical characteristics and trematode parasites of Channa punctata (Bloch) in Awangsoi lake, Manipur, India

Infection with trematode parasites can lead to severe change in nutrient content and may result in host mortalities and character of a water body may influence the parasitic fauna. Hence a study was carried out from 2010 to 2011 to find out a correlation of water’s physic-chemical characteristics and trematode parasites of Channa punctata (Bloch) in Awangsoi Lake, Manipur, India. During the present investigation three species of trematodes were recorded. In the present study there were concurrent infections by two or more parasite species. The percentage of infection was positively correlated with temperature, pH, DO and conductivity in Awangsoi Lake. There was a significant positive correlation (r = 0.652; p<0.05) with FCO2 and a negative correlation with alkalinity. Seasonal variation in the occurrence of these parasites may be attributed to ecological conditions, particularly distribution of intermediate hosts and also the age of the host and the life cycle of the parasite species

Role of availability of critical aquaculture inputs and community-managed markets on community-based floodplain wetland management

India has extensive wetlands of 2.02 lakh ha. These are basically low-lying floodplain areas. Assam has endowed huge floodplain wetlands and are locally called as Beel. These are one of the most important fishery resources of India providing livelihood to thousands of poor people. The average existing fish production of Assam Beel is only 173 kg/ha/year against its production potential of 1000-1500 kg/ ha/year. A study was conducted in three Beels of the Assam state to see the role of two situational independent variables namely availability of critical aquaculture inputs (X1) and community-managed markets (X2) on dependent variable i.e. knowledge levels of Beel users for community-based Beel fisheries management (Y). The study revealed that community-managed markets was significantly and positively associated (P<0.01) with knowledge levels of Beel users on community-based Beel fisheries management. Also, between these two variables, community managed market (X2) was found to be most significantly contributing variable (‘t’-value – 2.91**) on knowledge levels of Beel users for community-based Beel fisheries management (Y)

Fishing devices of the river Siang in Arunachal Pradesh, India

Fish is one of the best sources of animal protein of the food. Fishing and hunting are the oldest profession of all mankind since man began his search of food. Traditional fishing catching devices which were operated in River Siang, Arunachal Pradesh have been studied with respect to its operation, structure and productivity. The small depicted work highlight 13 different types fish catching devices, which have been classified into 5 different types viz., (i) Encircling Gear (Khewali Jal, Angtha Jal and Ber Jal or Jeng Jal) (ii) Entangling Gear (Langi or Current Jal and Phansi Jal) (iii) Scooping Gear (Sip Jal and Thela Jal) (iv) Hooks and Line fishing (Nal Barshi and Doogabanshi) (v) Traps (Chepa, Dingora, Polo, and Kholaha). The present study was carried out from June 2012 to July 2013 in a 58km stretch of River Siang in East Siang district of Arunachal Pradesh. Some methods can be considered as traditional as well as non-traditional since they are well known in some other states of North-East as well as also in the country with some different kind of variation. Various fishing techniques depend on various behavioral pattern and microhabitat type of fishes

Wetlands, Fishes and Pandemics with Special Reference to India

Water is life, life is water. Water is indispensably important for sustenance of life. Wetlands serve as potential water bodies, harbouring coveted bioresources, which sustain animal life. Fish is a significant bioresource for nutrition and avocation of the people. There are various types of wetlands in the Indian sub-continent. India has c 67,429 wetlands covering c 4.1 million ha. Concomitantly, c 21,723 living species of fish have been recorded out of 39,900 species of vertebrates. Of these, c 8411 are freshwater (FW) species and c 11,650 are marine. India recorded c 2500 species of fishes; of which, c 930 live in FW and c 1570 are marine. The hitherto unknown dreadful, virulent, enigmatic Epizootic Ulcerative Syndrome (EUS), has been sweeping the FW fishes in an epidemic dimension, unhindered, unimpeded and unabated, almost semi-globally; and, has been causing large-scale mortality among them, since 1988, rendering many of them endangered. Concomitantly, the outbreak of SARS-CoV-2, among the human, was first reported at Wuhan, China, in late December 2019. The first 54 reported cases of COVID-19 were observed in December 2019 at Wuhan, China, and this, subsequently, had spread across the globe. India has been facing much impacts of COVID19 pandemic since its inception in China

Wetlands and their Fish Diversity in Assam (India)

Water is indispensably important for sustenance of life. Wetlands serve as potential reservoirs of water which also harbour coveted bioresources, which sustain animal life. Fish is a potential bioresource for nutrition and offer work places for people. The Asian continent has innumerable wetlands with the Indian sub-continent portraying myriads of wetlands of different kinds, including perennial wetlands (locally called “Beel” or “Taal”), seasonal floodplain wetlands (“Haor”) and river-formed oxbow wetlands (“Anua”). In addition to playing a pivotal role in providing nutrition and work places to the people, wetlands also play a significant role in flood management, in regulating biogeochemical cycles, and above all, perhaps, in the rehabilitation of the innumerable fish stocks