Aquatic Entomofauna diversity in Lower Manair Dam, Karimnagar Dt. Telangana state, India (original) (raw)

DIVERSITY AND DISTRIBUTION OF AQUATIC INSECT POPULATION IN LAKHA BANJARA LAKE, SAGAR (M. P.), INDIA

Freshwater lakes are integral part of aquatic ecosystem and provide numerous benefits to human beings directly or indirectly. Aquatic insects are the primary bio-indicators of freshwater bodies such as lakes, ponds, wetland, streams and rivers. The presence or absence of certain families of aquatic insects can indicate whether a particular water body is healthy or polluted, because they cannot escape pollution and show the collective effects of short and long term pollution events. An investigation was carried out to study the aquatic entomofauna, their diversity and distribution in eight stations of LakhaBanjaralake of Sagar (M. P.) for a period of six months from July 2014 to December 2014. The aquatic insects were sampled systematically and randomly in station-wise habitats, using standard protocols. A total of 2207 individuals representing 12 species belonging to 12 genera, 10 families and 4 orders were recorded. Among the collected insects Hemiptera ranked first with the large population of individuals and percentage (87%). The orders followed by Hemiptera in their number and percentage were Coleoptera (7%), Odonata (4%) and Diptera (2%).

Biodiversity of aquatic insect population in three permanent ponds of Guwahati, Assam, India

2016

The present study deals with the aquatic insects survey conducted from February 2016-May 2016 in three permanent ponds of Guwahati city, Assam. This study enumerated 25 different species belonging to 6 orders and 13 family. Order Hemiptera represent the highest number of species (15 species) followed by Coleoptera (4 species) and other orders such as Odonata (2 species), Hymenoptera (1 species), Ephemeroptera (1 species), and Diptera (2 species). In the present study order Hemiptera was found most diverse and relatively abundant in the pond. Overall species abundance and richness revealed that insect order Hemiptera were the most dominant and that of Hymenoptera was the least dominant in the three pond system. In this study, Coleoptera was the second dominant order and Ephemeroptera and Hymenoptera was the least dominant order which suggested that the study area of Guwahati city is less polluted and rich in aquatic vegetation. The Shannon-Weiner diversity index for aquatic insect re...

Study on Diversity of Aquatic Insects in Ramaua Reservoir of Gwalior District (M. P.)

International journal of research - granthaalayah, 2020

Aquatic insects are those which live a part of their life cycle in water. In addition to their significant ecosystem function aquatic insects are also a primary source of food for fishes and amphibians. Inland wetlands of India serve as the habitat for more than 500 species of aquatic insects which are mainly from Ephimeroptera, Odonta and Trichoptera. The study was conducted during early hours of the day from August, 2019 to November 2019. Three sites were selected for the study i.e. vegetation site, agricultural site and disturbed vegetation site. The checklist of recorded aquatic insects is shown with their taxa, order, family and scientific name and common name. Total 24 species of aquatic insects were found in three different sites. The study of population of insects in different sites revealed the fact that the population of aquatic insects was governed by abiotic and biotic factors.

A survey of Entomofauna in Some Village Pond Ecosystems in Indian Desert Region

The present study was undertaken on five village ponds namely Sagar, Devikundsagar, Harsolao, Gajner and Kolayat situated in Bikaner district in the western arid region of Rajasthan to place on record an exhaustive checklist of insect fauna of these ecosystems. Insects make the largest group in the animal kingdom. These form an important component of natural food web in aquatic ecosystem. Insects perhaps the hardiest organisms and with their occurance and diversity dominate fresh water ecosystems. The faunal composition of aquatic insects was rich in all the studied village ponds and represented by 27 genera. The adult insects were represented by two orders namely Coleoptera (beetles) and Hemiptera (bugs). Orders Diptera, Odonata, Plecoptera, Ephemeroptera and Trichoptera were represented only by larval forms.

A Study on the Diversity of Aquatic Insect Communities of Kaliabor Subdivision, Nagaon, Assam

Aquatic insects holds an important place in the ecology of freshwater ecosystem. The present study deals with the aquatic insects survey conducted from January 2018-March 2018 in three permanent water bodies of kaliabor, Nagaon district, Assam. During the study all total 28 species of aquatic insects have been recorded belonging to six order and 18 family. Different group of insects have different tolerance to the quality of the water in which it lives. Due to the diversity of insects, each different group relies on a different set of conditions in order to survive. According to this study order Hemiptera represents the highest number of species (Nine families including 15 genera). Coleoptera (three families including four genera.), Odonata (two families including four genera) Diptera(two families including two genera) Ephemeroptera (one family including two genera), Hymenoptera(one family including one genera) were recorded during this work. Water quality parameters in the three sites don't show significant differences. Dissolved oxygen is found to be highest in Solong beel and also the total number of insects species present are high at this site followed by Kolong river and Jaysagar doloni.

Diversity of aquatic insects in Semara Taal, a wetland of district Siddharthnagar, U.P

2020

The present study deals with the aquatic insects survey conducted from March 2018 to May 2018 in Semara Taal. This study enumerated 20 different species belonging to 6 orders and 19 families. Order Hemiptera represent the highest number of species (8 genera) followed by Diptera (4 genera), Coleoptera (3 genera), Odonta (2 genera), Ephemeroptera (2 genera), and Trichoptera (single genus). Dominance of Hemipteran, Odonata and Coleoptera insects suggested that the Semara taal is relatively less polluted.

Aquatic Insect Fauna and Diversity in Urban Fresh Water Lakes of Tripura, Northeast India

Freshwater lakes are integral part of urban ecosystem and provide numerous benefits to human beings directly or indirectly. An inventory was carried out to study the aquatic entomofauna, their diversity and distribution in three urban freshwater lakes of Tripura, northeast India during January to May, 2012. A total of 2159 individuals representing 31 species belonging to 23 genera, 15 families and 4 orders were recorded. Maximum of 30 species and 1191 individuals of aquatic insects were recorded in vegetation rich Maharaja Bir Bikram College Lake and minimum of 11 species and 215individuals were recorded in vegetation poor Laxminarayan Bari Lake. Insects belonging to the orders Hemiptera (32.26%) and Odonata (32.25%) showed higher species richness followed by those belonging to Coleoptera (25.81%) and Diptera (9.68%), respectively. Maximum diversity (H = 3.03) and least dominance (D = 0.06) and minimum diversity (H = 1.50) and maximum s s s dominance (D = 0.06) of aquatic insects was recorded in Maharaja Bir Bikram College Lake and Laxminarayan s Bari Lake, respectively. Richness estimators Chao 1 and Chao 2 provided the best predicted value of species richness. Three species are reported here for the first time from the state. Dominance of hemipteran and coleopteran insects suggested that urban lakes of Tripura are relatively less polluted.

Diversity of aquatic insects of Dibru River near Dibru Saikhowa National Park, Assam, North East India

2017

A study was conducted on aquatic insect community of Dibru River at three sites, Guiijan ghat (DS1), Kaliapani ghat (DS2) and Khantigwali ghat (DS3) of Dibrugarh district near Dibru Saikhowa National Park. The sampling of aquatic insects and water was done in replicates during September 2014-2015. The study recorded 4 orders, 8 families, 12 genera and 12 species of aquatic insects. Highest density of order Hemiptera was recorded in pre monsoon and lowest and same density was recorded of order Odonata and Coleoptera in monsoon and winter. Seasonal variations of environmental variables of water were found moderate. Density of aquatic insects showed significant negative relationship with phosphate. The study revealed low Shannon Weiner Diversity Index values of aquatic insects (Shanon H<1) in all the sites indicating perturbed conditions of water. Canonical Correspondence Analysis (CCA) showed that the species environmental correlations of axis 1 and axis 2 were high.

Diversity and community structure of aquatic insects in a pond in Midnapore town, West Bengal, India

In total 20 species of aquatic insects have been recorded from a weed infested pond. Odonata was numerically the most abundant group constituting of 54% of the total aquatic insects even though these belonged to three species. Coleoptera though constituted only 22% of aquatic insects had 10 species. Urothemis signata and Ranatra filiformes were eudominant and dominant species respectively. Hydrometra butlen is recorded from West Bengal for the first time. Five species of Hemiptera, Ranatra filiformes, Ranatra elongata, Diplonychus rusticus, Micronecta merope, Gerris nitida and Hydrometra butlen; three species of Odonata, Urothemis signata, Agriocnemis pygmoea and Enllagma parvum and one species of Coleoptera viz., Coplatus indicus have been recorded from Paschim Medinipore district for the first time. Species diversity and evenness indices fluctuated from month to month and from one sampling site to other being <1 suggest a stressed and disturbed environment.

Distribution and diversity of aquatic insects of Vellayani lake in Kerala

The diversity of insect fauna of Vellayani lake in Kerala was represented by 60 species classified under 37 families and 8 orders. Among the entomofauna collected from the lake, the order Coleoptera was diverse in number of genera (22). Shannon index was highest in station 2 (3.214) and lowest (2.839) in station 4. The higher richness index was also recorded in station 2 (6.331), though the lowest species richness was observed in Station 1 (5.205). The order Ephemeroptera is represented in Vellayani lake by the families Baetidae and Caenidae, which are considered as an indicator of water quality. Of the 15 metrices selected, taxa richness, Composition measures, Tolerance and Intolerance and Functional groups were also found out for all the stations. In the present study, the percentage of Ephemeroptera, Plecoptera, Trichoptera (EPT) taxa richness and diversity remained high in Station 1, 2 and 3 but reduced drastically in stations 4 and 5. The high HBI value recorded at station 4 is due to the abundance of pollution tolerant taxa such as Chironomidae, Tabanidae, Culicidae and Anophilinae. The results of the study reveal greater diversity of aquatic entomofauna in Vellayani freshwater lake and suggest the possibility of using insects effectively for biomonitoring programmes.