Download or read book Ecobiology of Aquatic Insects written by Arvind Kumar and published by . This book was released on 2008 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: The factors governing life on earth are changing constantly and the same is true for life too. The unique property of the aquatic insects is their ability to changes in the themselves, accepting the challenge caused by changes in the surroundings and this has enabled to exploit the environment successfully, leading to their survival multiplication and continuation on earth since first appearance. This book is the compilation of esteemed articles of internationally acknowledged experts in the field of aquatic biology with the intention of providing a sufficient depth of the subject to satisfy the needs at a level which will be comprehensive and interesting. The present book will be useful to the students, research scholars, scientists in the field of Environmental management and ecoplanners, politicians and other people with similar interest. Contents Chapter 1: Quantitative Assessment of Predatory Insects and their Integration with Varied Factors in Some Fish Culture Ponds by Manish Chandra Varma, Shiv Kumar, Raghbendra Pratap and Arvind Kumar; Chapter 2: Genotoxicity of Cadmium Assessed by the Micronucleus Test on Channa punctatus (Pisces : Family-Channidae) by N K Tripathi and Anurag Dubey; Chapter 3: Diel Vertical Migration of Zooplankton in Andaman Sea by I K Pai, Sameer Terdalkar, M L Pereira and F M Morgado; Chapter 4: Biological Control of Locusts and Grasshoppers Using Red-Mite, Eutrombidium trigonum Herm by S K A Rizvi, N P Singh and Nazima Maqbool; Chapter 5: Effect of Different Food Conditions on Survival, Longevity and Life History of Oithona brevicornis and Calanus finmarchicus by R Ramanibai and G Priya: Chapter 6: Assesment of Plankton Diversity using Shannon-Weaver Index (H ): A Case Study in Coleroon and Cauvery Esturies by P Elayaraja and R Ramanibai; Chapter 7: Ecology of Aquatic Insects in Harike Wetland by K S Bath; Chapter 8: Ecology of Kanjli Wetland with Reference to the Invertbrate Fauna by K S Bath; Chapter 9: Distribution of Insects in Relation to Pollution in Satluj River, Panjub by H Kaur, J Syal, S Jasuja and S S Dhillon; Chapter 10: Insect Fauna of Ropar Headworkers Reservoir, Punjab by H Kaur, K Sajeev, S Jasuja and S S Dhillon; Chapter 11: Insect and Aquatic Envirionment by S Subhashini, K Logan Kumar and S Logaswamy; Chapter 12: Statistical Approach to Monthly Variations of Physico-chemical Factors at Lower Lake of Bhopal in Relation to Insect Fauna by Madhulika Singh and K Borana; Chapter 13: Seasonal Variations in Insects Population of Lower Lake of Bhopal in Relation to Macrophytes by Madulika Singh and K Borana; Chapter 14: The Effect of Pollutants on the Genotype of Five Species of Family Coengrionidae (Zygoptera : Odonata) by G K Waliy; Chapter 15: Main Cytogenetic Characters in the Order Odonata by G K Walia; Chapter 16: Algal Contribution to Dissovloved Oxygen in Small Hilly Streams: A Case Study by M R Sharma and A B Gupta; Chapter 17: Aquatic Environment of Ram Ganga River at Moradabad, India: A Quantitative Assessment by D K Sinha, Shilpi Saxena; Chapter 18: Oviposition Deterrent Activities of Azadirachta indica Dalbergia sissoo and Tagetes erecta Leaf Extract Against Culex Quinquefasciatus Say by Navpreet Kaur Gill and Shivali Uttam; Chapter 19: Histopathological and Histochemical Effects of a Newly Synthesized (JHA) Cyclohexloxy Compound on the Midgut on Fourth Instar Larvae of Culex quinquefascuatus Say by Navpreet Kaur Gill; Chapter 20: Role of Some Abiotic Factors in Structuring the Macroinvertebrate Community with Spical Reference to Insects Along a Longitudinal Profile of River Sindh, Kashmir Valley by Haroon UI Rashid and Ashok K. Pandit; Chapter 21: Some Aspects of Habitat Ecology of Aquatic Entomofauna in two Freshwater Lakes of Kashmir Himalaya by Kawnsar-ul-Yaqoob and Ashok K Pandit.

Download or read book Aquatic Insects written by Royal Entomological Society of London. Symposium and published by CABI. This book was released on 2008 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Considers the challenges facing insect populations in aquatic environments and how they have adapted to achieve such prominence in virtually all habitats." SUMMARY.

Download or read book An Introduction to the Aquatic Insects of North America written by Richard W. Merritt and published by . This book was released on 1978 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: This treatment is intended to provide a standard guide to North American families of aquatic insects; their taxonomy, phylogeny, morphology, ecology, and distribution, as well as collection and rearing techniques. The coverage should allow a variety of groups, both lay and professional, to identify and categorize the immatures of adults they collect and, having done so, to associate pertinent ecological and distributional information with the group in question.

Download or read book Aquatic Insects written by D. Dudley Williams and published by Oxford University Press, USA. This book was released on 1992 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic insects are being used increasingly to test a number of hypotheses in contemporary ecological theory. Additionally, research has revealed the importance of aquatic insects in the spread of diseases, the biological assessment of water quality and the reconstruction of past environments on earth. This book presents new findings in the study of aquatic entomology, together with the background information necessary to understand them and references to more detailed studies. Only a limited prior knowledge of general ecology or entomology is assumed on the part of the reader. The book will therefore appeal to advanced undergraduate students taking courses in aquatic biology or entomology, as well as research workers in ecology and pure and applied entomology.

Download or read book The Ecology of Aquatic Insects written by Vincent H. Resh and published by Greenwood. This book was released on 1984 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecology Of The Hydropsychidae And Philopotamidae Of Rapid Streams written by Alice Ayr Noyes and published by Legare Street Press. This book was released on 2023-07-18 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This scientific monograph explores the ecology of two families of insects, the Hydropsychidae and Philopotamidae, that inhabit rapid streams. Drawing on extensive fieldwork and laboratory research, Alice Ayr Noyes provides detailed information on the life history, behavior, and ecological roles of these important aquatic insects. This book is a must-read for entomologists, aquatic ecologists, and anyone interested in the biodiversity of freshwater ecosystems. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book A Guide to the Study of Fresh water Biology written by James George Needham and published by . This book was released on 1927 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Studies of Aquatic Insects written by Gideon Stanhope Dodds and published by . This book was released on 1924 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Strategies of Aquatic Insects written by Charles W. Heckman and published by . This book was released on 2018 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book recounts the habits of many interesting and unusual exceptions to the rule that insects are typically terrestrial forms of life. It examines the different ways that groups of species have developed modes of existence in or on the surface of water, and gives reasons why the gross morphology of insects is not favorable for life in or near bodies of water, such as wings that fail to function after coming into contact with water, rendering them useless.

Download or read book An Ecological and Taxonomic Study of the Aquatic Insects of Blacklick Creek Franklin County Ohio written by Charles Valerian Reichart and published by . This book was released on 1947 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aquatic Insects in the Vicinity of the Black Hills South Dakota and Wyoming written by Grant De Jong and published by Lulu.com. This book was released on 2018-07-12 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Black Hills, straddling the border between southwestern South Dakota and northeastern Wyoming, represent an ecological "island" of mountainous terrain in the midst of the Great Plains. Streams, rivers, lakes, and ponds are abundant, yet the aquatic insect fauna inhabiting those ecosystems has not previously been compiled in a single document. This work demonstrates that the known fauna of 95 families, 335 genera, and 447 species-level aquatic insect taxa has a curious mix of eastern, western, northern, and southern biogeographic affinities, yet many significant data gaps remain, and this work can only represent a starting point. The Black Hills beckon more curious naturalists to come and add to our knowledge.

Download or read book Ecology and Ethology of Aquatic Biota written by Arvind Kumar and published by Daya Books. This book was released on 2002 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Man has been playing a key role in shaping the environment with most of his activities directed towards its overall degradation. The aquatic ecosystems, which remained balanced and unaffected till the early days of civilization, get rapidly deteriorated due to population explosion, unmindful disposal of sewage and mushroom growth of industries. Billions of gallons of waste water from cities, housing settlements, industries and agricultural fields are thrown into watercourses everyday. Consequently, the ecology of water and ethology of biota existing therein have been greatly threatened. So, in order to focus the importance of ecology and ethology of aquatic biota, the present book has been brought out. The present book is a unique compilation of 90 articles contributed by eminent authors with different backgrounds, which will act as a key-board in opening new vista in the field of aquatic environment. With its application oriented and interdisciplinary approach, the book would be immensely useful to everyone dealing with aquatic environment, such as University teachers, environmental scientists, academicians, technocrats, politicians, researchers and post graduate students. Contents Volume 1; Chapter 1: Ecobiodiversity of aquatic biota in certain freshwater ecosystems of santal pargana (Jharkhand), India by Arvind Kumar & H P Gupta; Chapter 2: Energy cost of melamorphosis in the tadpoles of microhyla ornata (Anura: Amphibia) by Charulata Dei & M C Dash; Chapter 3: On some aspects of ecobiology of common fishes of the polluted river damodar in West Bengal (India) by B K Biswas & S K Konar; Chapter 4: Role of macrofauna in energy partioning and nutrient recycling in a tidal creek of sundarbans mangrove forest, India by P B Ghosh; Chapter 5: Aquaculture in inland saline waters in India: Present status and future possibilities by C Saha, B C Mohapatra & B K Sahu; Chapter 6: Role of nutrients on phytoplankton diversity in the north east coast of the bay of Bengal by Kakoli Banerjee, Abhijit Mitra, D P Bhattacharyya & Amalesh Choudhury; Chapter 7: Effect of antifouling coatings on aquatic biota: An overview by V Wilsanand & R Paulmurugan; Chapter 8: Dynamics of sediment characteristics and benthic fauna in modifies extensive shrimp culture system by S K Das & D N Saksena; Chapter 9: Role of ecotoxicological research to the protection of our aquatic environment by Bidhan C Patra; Chapter 10: Ecotechnology for limnological profile of Kawar Lake with special reference to biogeochemical cycles by Arvind Kumar, Chandan Bohra & A K Singh; Chapter 11: Status of aquatic bodies in warangal: Their protection and conservation by K Vijayapal Reddy, Y Kalyani, M Rayappa, G Satyanarayana, B Suvarna, K Prameela & M A Singara Charya; Chapter 12: Pesticides and its impact on aquatic ecosystems by R K Srivastava & Smita Vidyarthi; Chapter 13: Impact of pesticides on algae: A review by Dr J P Verma; Chapter 14: Evaluation on growth, survival and carcass composition of osteobrama belangeri (Val) fed with different non-conventional pelleted feeds by W Jayadeve & W Vishwanath; Chapter 15: Study on water quality of cattle and pig manure fed fish pond by N K Verma, A K Singh, R Yadav & R K Jha; Chapter 16: Density, biomass and microdistribution of a caddisfly larva (Lepidostoma spp) in deciduous forest stream of alagar hill (Eastern ghats) South India; Chapter 17: Relationship between temperature and assimilation efficiency of aquatic insects: An overview by N Krishnana and N Arun Nagendran; Chapter 18: Effects of some ichthyotoxic plants on freshwater hillstream fishes of mid-central Himalayan region by Yogambar Singh Farswan; Chapter 19: Microbial bioremediation of environmental problems by S Srivastava, R S Upadhyay, A Kumar and B V Pandey; Chapter 20: Distribution ecology of protozoa in relation to water quality in river cauvery, Karnataka, India by J Narayana and R K Somashekar; Chapter 21: Asplanchna induced phenotypic plasticity in brachionus calyciflorus and its adaptive significance: A laboratory approach by Atab Alam, Asif A Khan, S A Untoo and Saltanat Parveen; Chapter 22: Plankton dynamics in a bar-built estuary by K Vareethiah; Chapter 23: Enzyme ecology of fish by G Tripathi & P Verma; Chapter 24: Studies on the waste generation potential from crustaceans landings in Sothwest coast of Kanyakumari district, India by G Immanuel, Vedamany Menenthira, A Palavesam & M Peter Marian; Chapter 26: Seasonal fluctuation of phytoplankton of brackishwater impoundments along Nethravathi Estuary by K M Rajesh & Mridula R Mendon; Chapter 27: Plankton as indicators of trophic status of wetlands by Ahok K Pandit; Chapter 28: Integrated biological control of water hyacinth eichhornia crassipes in the fresh water habitats of India by A G Murugesan, S Rameshwari & N Sukumaran; Chapter 29: Primary productivity of a sewage fed aquatic ecosystem by Chandan Bohra & Arvind Kumar; Chapter 30: Observations on the Eco-biology of an aquatic heteropteran bug gerris spinolae with a description of its Nymphal Instars by Nanda Verma & M Raziuddin; Chapter 31: Biochemical, nutritional and microbiological quality of sun-dried exocoetus sp (Flying fish) of Imphal, market, Manipur by Hijam Binota & W Vishwanath; Chapter 32: Effect of environmental factors on zooplankton (Biomass-number) production in a polluted tank by M B Nadoni, P S Murthy & B B Hosetti; Chapter 33: Enhancement of biomass yield and nitrogen fixation of azolla pinnata using phosphorus and different waste materials by M C Kalita; Chapter 34: The effect of endosulfan on the backwater clam (Meretrix casta) by M Srinivasan, A Murugan, R Rajaram, M A Badhul Haq; Chapter 35: Effect of dietary intake of crude aflatoxin on blood biochemistry of channa punctatus by Shishir K Verma, Shambhoo Prasad & N K Dubey; Chapter 36: Screening of indigenous plants for piscicidal activity in fish nemacheilus sinuatus Ham by Manoj Abhimanyu Patil; Chapter 37: Isolation and characterisation of herbicide resistant bacteria from paddy fields of South Tamil Nadu by Anbalagan, S Ranjit Singh, A J A & R Palaniappan; Chapter 38: Bio-removal of copper by aquatic macrophyte ottelia alismoides (L) by S Vincent, M Mary Jee Jee Cruz Malar Vizhi; Chapter 39: Inter-relationship of biotic communities and physico-chemical factors with primary productivity by J P Verma & R C Mohanty; Chapter 40: Ethology of certain air breathing fish during a total solar eclipse at dumka (Santal Pargana) in Jharkhand, India by Arvind Kumar & Chandan Bohra; Chapter 41: Domestic sewage in relation to marine pollution by C Maruthanayagam & C Senthil Kumar; Chapter 42: Biochemical studies on some selected marine zooplankton population at Palk Bay region by C Maruthanayagam, C Senthil Kumar & K Shanthi; Chapter 43: Role of seed extracted by-product (Neem cake) of the plant azadiracta indica (Linn) on survival, yield and reproduction of fish by S K Sarkar; Chapter 44: Studies on eco-biology of molluscs of Jharkhand, India by Arvind Kumar & Ajay Kumar; Chapter 45: Inter-relationship between phytoplankton and fish seed diversity around Sagar Island by A Mitra, K Banerjee, S Pal, S Neogi & D P Bhattacharya; Volume II; Chapter 1: The ecology of aquatic biota in thermal springs by Arvind Kumar; Chapter 2: Impact of degradation of aquatic ecosystems on fisheries- A case study midnapore district, West Bengal by Tapas Paria & Sushil Kanta Konar; Chapter 3: Seasonal variations of elements and dynamics of nutrients in a typical brackishwater pond ecosystem used for traditional shrimp culture by S K Das & D N Saksena; Chapter 4: A composite approach for evaluation of the effect of malathion on gobiid fish glossogobius giuris (HAM) by M Ramachandra Mohan; Chapter 5: Studies on pollutional impact of tannery effluent on fish and livestock by Ashis Panigrahi & Amalendu Chakraborti; Chapter 6: Macro-Invertebrate fauna of mangrove soil habitat and its charateristic features: A case study from cochin mangroves in Kerala by R Sunil Kumar; Chapter 7: Physico-chemical parameters in the near shore waters off Magalore receiving treated industrial effluents by Mridula R Mendon & K M Rajesh; Chapter 8: Toxic effects of chromium sulphate on the indian catfish heterophenustes fossilis (Bloch) in short term and long term exposure by D N Roy & N K Dubey; Chapter 9: Bacteriological status of river water in Asansol Town, District- Budwan, W B by Chinmoy Chatterjee & M Raziuddin; Chapter 10: Toxicity of copper on the morphological and behavioural aspects in Labeo rohita by Maruthanayagam C, Sahrmila, G & Arvind Kumar; Chapter 11: Effect of zinc on oxygen consumption and glycogen metabolism of an estuarine hermit crab clibanarius infraspinatus (Hilgendorf) by P Kumarasamy, K Muthukumaravel & S Parimala; Chapter 12: Toxic effect of protein products of india (PPI) effluent to a freshwater teleost fish cyprinus carpio var communis by M Ramesh; Chapter 13: Ground water pollution through nitrogeneous fertilizers: A review of modelling approaches by K G Singh, S K Sondhi & Bijay Singh; Chapter 14: An analysis of fisheries extension and its impact on social change among fishing community by Ananth, P N Venkattakumar, R & Sunil, V G; Chapter 15: Rearing of giant fresh water prawn macrobrachium rosnebergii in pond with water exchange facility and in pond with stagnant water by N R Chattopadhyay & A K Panigrahi; Chapter 16: Effect of industrial pollution of Kalu River in the content of minerals (Iron, phosphorus, potassium) in its vegetation-I by S A Salgare & R N Acharekar; Chapter 17: Effect of industrial pollution at Kalu River on the amino acid (Aspartic acid, alanine, cysteine, glycine) content of its vegetation-II by S A Salgare & R N Acharekar; Chapter 18: Phytoplankton dynamics of Udhuwa Lake, Jharkhand (India) by Chandan bohra & Arvind Kumar; Chapter 19: Evaluation of semi-intensive brackishwater shrimp farm effluent by T Jawahar Abraham; Chapter 20: Morphometric relationship of fresh water turtle, kachuga tecta (Gray 1831) by S G Solanki; Chapter 21: Ecological status of mangroves and their urgent need for development and conservation in and around Cochin Estuary in Kerala by R Sunil Kumar; Chapter 22: Eutrophication by R K Srivastava & Vandana Raghuwanshi; Chapter 23: Immunoresponse of aquatic molluscs in biounsafe environment by Sajal Ray; Chapter 24: Effects of plant and animal diets of food utilization of the fresh water carp labeo rohita (Hamilton) by Bharat Bhusan Patnaik, A T Fleming & M Selvanayagam; Chapter 25: Impact of heavy metals on hydrogen production and nitrogenase activities of photosynthetic sulphur bacteria by B Rajani Rao, V Venkatramana Kumar, K Malathi Reddy & S K Mahmood; Chapter 26: Probiotics can assure nutritional security in aquaculture: An overview by Bidhan C Patra & P Bandyopadhyay; Chapter 27: Enzymatic evaluation of a heavily polluted lake in mysore by T B Mruthunjaya & S P Hosmani; Chapter 28: Benthic foraminifera in evaluating environmental stresses in marginal marine environment- A case study by Sabyasachi Majumdar, Abhijit Mitra, U C Panda & Amalesh Choudhury; Chapter 29: Impact of industrial pollution on the nutritive value of valamugil sehili from harbour waters of vizag by L M Rao, B Bharatha Lakshmi & Y Bangaramma; Chapter 30: Acute toxicity of carbaryl and methyl parathion on survival of rana tigrina tadpoles by K Sampath, I J J Kennedy & R James; Chapter 31: Variations of some abiotic and biotic factors of fish culture ponds treated with neem cake by S K Sarkar; Chapter 32: Conservation of the perennial river tamirabarani with special reference to restoration of catchment area and Aquatic habitat by A G Murugesan, C Rajakumari & M Sukumaran; Chapter 33: A floristic and socio-economic study of Wetlands of Varanasi, (U P) by Ajai Kumar Singh; Chapter 34: Macrobenthic molluscan spectrum in the coastal West Bengal by Abhijit Mitra, Amitava Aich, Amalesh Choudhury & D P Bhattacharyya; Chapter 35: Phytoplankton population in water bodies of coal mines area with special reference to pollution indication by Umesh Prasad, P K Mishra & Arvind Kumar; Chapter 36: Effects of interactions of plant glycocomponent (De-odorase) and chemical fertilizers on fish, oreochromis mossambicus by S S K Sarkar; Chapter 37: Planktonic biodiversity in the amphibian habitats of eight districts of Arunachal Pradesh, India by Bikramjit Sinha, Mohini Mohan Borah & Sabitry Bordoloi; Chapter 38: Impact of environmental stress on the growth behaviour of water hyacinth, eichhornia carassipes (Marts) with special reference to removal of pollutants by Arvind Kumar & Chandan Bohra; Chapter 39: Ecology and ethology of water-chestnut cultivation in Bundelkhand region by R K Tewari & K S Dadhwal; Chapter 40: Effects of pH, phosphates and solvents on sulfate reduction by desulfovibrio by D Mallik & G C Pradhan; Chapter 41: Studies on the effluent characteristics of shrimp farms by K Karl Marx, Chapter 42: Aquatic ecosystem and ecology of freshwater tuttle with special reference to kachuga tecta by G S Solanki; Chapter 43: Status of andaman sea ecology: past present and future by I K Pai; Chapter 44: Phycological studies in Kashmir I: Algal biodiversity by Khan, M A; Chapter 45: Water quality and phytoplankton abundance in South Indian River, Tamiraparani by P Martin & H Haniffa.

Download or read book Water Quality Requirements of Aquatic Insects written by Arden Rupert Gaufin and published by . This book was released on 1973 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aquatic Insects in Tahoe Basin Streams written by Dorothea Yvonne Panayotou and published by . This book was released on 2003 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Disguising ecological traps written by Theodore Vincent Black and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Numerous free-flying adult aquatic insect species use polarized light signatures to locate waterbodies on which they reproduce and where larval stages live for the majority of their lives. Manmade objects and structures are capable of mimicking these polarized light signatures and in many cases create signatures which are more attractive to aquatic insects than water itself. This effect causes severe ecological traps which threaten aquatic insects with population declines or extinctions. Previous studies have shown that the attraction of highly polarizing synthetic sources can be mitigated by strategic grids of non-polarizing lines. This represents an appealing mechanistic conservation work around. This paper, through multiple choice preference experiments, measured the effect that line thickness had on the deterring quality of a grid scheme. Our results showed that across non-biting midges (Chironomidae), black flies (Simulliidea), caddisflies (Trichoptera), and mayflies (Ephemeroptera) thickness of the non-polarizing line was an essential factor in the deterring effect. Our thinnest lined trap scheme (lines1̃mm) captured equivalent numbers of insects to that of our highly polarizing control. My results also show novel interactions of different taxa and body size with the polarizing signatures of our experimental traps. My research has novel implications for both academic understanding of aquatic insect habitat selection and applied conservation strategies.

Download or read book Water Quality Requirements of Aquatic Insects written by Arden R. Gaufin and published by . This book was released on 1973 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Ecological Study of Some Aquatic Insects written by John P. Schaffer and published by . This book was released on 1965 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Eight orders of aquatic insects were collected and classified to type of habitat. The results show that fast, rocky, well aerated waters contained the largest variety of insect genera belonging mainly to the orders Plecoptera, Trichoptera, and Ephemeroptera. River and pond habitats with slow muddy or trashy bottoms also contain a wide variety of aquatic insects. The order in this type of habitat are chiefly the Diptera and Odenata. River and pond habitats with bare sandy bottoms were found to be devoid of insect life."--Abstract.