The Ecology of Aquatic Hyphomycetes

The Ecology of Aquatic Hyphomycetes
Author: Felix Bärlocher
Publisher: Springer Science & Business Media
Total Pages: 239
Release: 2012-12-06
Genre: Science
ISBN: 3642768555

Aquatic hyphomycetes were discovered 50 years ago by C.T. Ingold. They remained a relatively obscure group until their role as intermediaries between deciduous leaves and stream invertebrates was established some 20 years ago. This book, for the first time, provides a comprehensive summary and critical evaluation of the biology and ecology of these organisms. Aspecial effort was made to evaluate the potential and actual insight that have been or will be derived from work in related disciplines such as the ecology of other fungal groups, stream ecology, or population ecology. The topics treated include the basic life history of the fungi and the potential role of wood, a discussion of how the fungi have adjusted to life in running water, their interactions with invertebrates, the attachment and germination of their spores, what is known about sexual reproduction, how water chemistry may influence their distribution and activity, how they react to human degradation of their environment, and a summary of the research done on the Indian subcontinent. The volume is of special interest to mycologists and stream ecologists and should facilitate the entry of new workers into this exciting area.

The Ecology of Aquatic Hyphomycetes

The Ecology of Aquatic Hyphomycetes
Author: Felix Barlocher
Publisher:
Total Pages: 244
Release: 1992-05-25
Genre:
ISBN: 9783642768569

Aquatic hyphomycetes were discovered 50 years ago by C.T. Ingold. They remained a relatively obscure group until their role as intermediaries between deciduous leaves and stream invertebrates was established some 20 years ago. This book, for the first time, provides a comprehensive summary and critical evaluation of the biology and ecology of these organisms. Aspecial effort was made to evaluate the potential and actual insight that have been or will be derived from work in related disciplines such as the ecology of other fungal groups, stream ecology, or population ecology. The topics treated include the basic life history of the fungi and the potential role of wood, a discussion of how the fungi have adjusted to life in running water, their interactions with invertebrates, the attachment and germination of their spores, what is known about sexual reproduction, how water chemistry may influence their distribution and activity, how they react to human degradation of their environment, and a summary of the research done on the Indian subcontinent. The volume is of special interest to mycologists and stream ecologists and should facilitate the entry of new workers into this exciting area.

Ecological Study of Aquatic Hyphomycetes on Leaves in a Warm-water Stream

Ecological Study of Aquatic Hyphomycetes on Leaves in a Warm-water Stream
Author: Tao Yun
Publisher:
Total Pages: 242
Release: 1996
Genre:
ISBN:

A three-year field study of aquatic hyphomycete communities in a warm-water stream in Illinois was carried out. Two peaks in total frequencies of aquatic hyphomycetes on randomly collected leaves occurred in each year. In contrast, only a single peak in total conidial concentration in water was observed. While total conidial concentrations in water and total frequencies of the species on leaves in each month were moderately correlated, correlation coefficients between species frequencies on leaves and their conidial concentrations in water in each month were not consistent over time. Species composition and relative frequencies in the communities differed at the same time in successive years, suggesting seasonal influences on community structure. In field experiments with multiple sets of leaf baits overlapping in time, communities on leaves of different submergence periods had similar developmental patterns in total frequencies of aquatic hyphomycetes. Low water temperatures delayed development of communities and compressed peaks of total frequencies of occurrence. At higher temperatures, differences in total frequencies among leaves of different submergence periods were greater. In field studies, higher efficiencies of conidial attachment occurred in species with tetraradiate conidia and higher germination percentages occurred in species with sigmoid conidia. The correlation coefficients for each month between efficiencies of conidial attachment and species frequencies on leaves had a bell-shaped curve over the study period (Feb. to Aug. 1995) when the communities on leaves changed from cold to warm season species. In contrast, the correlation coefficients between germination percentages of conidia and species frequencies on leaves changed in an opposite trend. Laboratory studies on other intrinsic characteristics of the fungi indicated that antagonistic abilities did not seem to be important for colonization of aquatic hyphomycetes on leaves. The differentiations between warm and cold season species in sporulation and mycelial growth on leaves at different temperatures were similar to those present during their seasonal abundance in the field. Some of the aquatic hyphomycetes tested in this study appear to have a ruderal life history strategy on submerged leaves. These results from field and laboratory studies contribute to understanding the ecology of aquatic hyphomycetes in streams.

Freshwater Fungi

Freshwater Fungi
Author: E. B. Gareth Jones
Publisher: Walter de Gruyter GmbH & Co KG
Total Pages: 518
Release: 2014-08-27
Genre: Science
ISBN: 3110333481

The available literature on freshwater fungi is limited. Over the subsequent years a considerable volume of scientific papers have appeared scattered throughout numerous journals. There is therefore no recent synthesis of the subject and this is the objective of the proposed book. Freshwater habitats are rich in fungi with some 3,000 described species, most of papers focussing on their identification, substrata they grow on and world distribution. However, these fungi play an important role in the freshwater ecosystem, and are primarily involved in the breakdown of leaf litter contributing food for detritus feeders. Our book will bring together a wide range of acclaimed mycologists to review recent developments on the biology and ecology of freshwater fungi, particularly their molecular phylogeny, biodiversity, causative diseases of freshwater amphibians, fishes and invertebrate animals, decomposition of leaf litter, stream pollution and their potential role in bioremediation.

Aquatic Ecology

Aquatic Ecology
Author: S. R. Mishra
Publisher:
Total Pages: 352
Release: 1992
Genre: Nature
ISBN:

Contributed articles.

Ecobiology of Polluted Waters

Ecobiology of Polluted Waters
Author: Arvind Kumar
Publisher: Daya Books
Total Pages: 300
Release: 2006
Genre: Science
ISBN: 9788170353867

Goethe said- Everything originated in water, and everything is sustained by water . Really with its multidimensional uses, water is one of the most precious gifts of nature without which no life could survive. The maximum part of the earth is covered with water but unfortunately we have only 3% of it in the form of freshwater, out of which 2% is in the form of glaciers and mountain ice thus only 1% of the total is on disposal for various requirements. The water is more enough if it is used and managed properly but due to our mismanagement and non-awareness, the whole world is facing teething crisis of water shortage as well as water pollution. Not only this, the waterbodies are now-a-days treated as dustbin. Man has miserably failed to realize his unabated interference in the natural recycling of essential elements, which have posed a serious threat to his own existence. The aim of this book is to provide a wide-ranging and authoritative coverage or water pollution, which is fundamental to our understanding and appreciation of the nature of aquatic environment. The book will be very much helpful for students, research scholars, Professors, scientists and policy makers in order to provide a sufficient depth of the subject to satisfy the needs at a level which will be comprehensive and interesting. Contents Chapter 1: Status of Freshwater in India: A Review by Arvind Kumar and Chandan Bohra; Chapter 2: Hydrochemical Studies on Suvarnamukhi Sub-basin of Arkavathi River, Bangalore District, Karnataka by H C Vajrappa and N Rajdhan Singh; Chapter 3: Prediction of Nitrate Pollution of Groundwater: A Case Study by Sarbjit Singh Sooch, Baljeet S Kapoor, Bijay Singh and N S Grewal; Chapter 4: Mining Initiatives for Placer Deposits Along the East Coast of India: A Preliminary Assessment of Possible Impact on Coastal Environment by M Jagannadha Rao, J Venkata Ramana and M Chandra Rao; Chapter 5: Influence of Thermal Stratification on Dissolved Oxygen in Subhas Sarobar, Kolkata by N R Samal, D Roy, A Mazumdar and B Bose; Chapter 6: Pollution of Drinking Water by Iron in Tribal Area of Sundargarh District, Orissa: A Guide to Community Health Workers and Non-government Organizations by P C Sahu and H K Sahoo; Chapter 7: Microbial Contamination in Drinking Water: Cause, Detection and Remedy by M K Bhutra and Ambica Soni; Chapter 8: Pollution Impact on the Hybrobiology of River Nakatia at Bareilly by Neelima Gupta, V K Verma and D K Gupta; Chapter 9: Status of Drinking Water Quality Awareness and its Impact on Student Health: A Study of Schools of Buldana District by S V Agarkar and B S Thombre; Chapter 10: Analysis and Seasonal Comparative Study of Amanishah Nallah and Neighbouring Ground Water Sources in Sanganer Town, Jaipur by Dinesh Kumar, Hari Singh, Mahavir Prasad and R V Singh; Chapter 11: A Study on Groundwater Quality in Residential Colonies of Visakhapatnam by T Usha Madhuri and B Subhashini; Chapter 12: Relation Between COD and BOD in Sewage and Groundwater Samples Around Nasik City by S P Wagh and V S Shrivastava; Chapter 13: Software Development on Groundwater Quality of Chengalpattu Environs, Kancheepuram District, Tamil Nadu (GQS) by R Annadurai and P Kamaraj; Chapter 14: Soil and Groundwater Pollution by Agrochemicals: A Review by D S Kler, Navneet Kaur and R S Uppal; Chapter 15: Groundwater Quality Index Near Industrial Area by Deepali A Sohani, G R Chaudhary and V S Shrivastava; Chapter 16: Studies on Primary Productivity of a Wetland by O P Mandal, A K Sinha and K M P Sinha; Chapter 17: Seasonal Fluctuation of Primary Production in Bonal Reservoir, Gulbarga District, Karnataka by H Anjinappa and K Vijaykumar; Chapter 18: Study on Zooplankton Diversity in Relation to Some Hydrological Parameters in a Freshwater Pond Ecosystem by C Maruthanayagam, S Radja Piragache and C Senthil Kumar; Chapter 19: Water Quality Profile of Man-khad Stream in Outer Himalayas by Er Moti Ram Sharma; Chapter 20: Status of Fisheries Resources in Selected Backwaters of Kerala by P K Sukumaran; Chapter 21: The Benthic and Littoral Fauna of a Perennial Polluted Tank in Bangalore by P K Sukumaran; Chapter 22: Ecological Imbalance by Reservoirs by V Srihari and C R Suribabu; Chapter 23: Studies on Limnological Characteristics of Guruvayanakere Pond Near Belthangady, S K District by B A Kumara Hegde, G Suresha, K Ramadas and B Yashovarma; Chapter 24: Diel Variation in Waterfowl During Winter at Sirpur Tank, Indore by Manjeet Malhotra, M M Prakash and K Pawar; Chapter 25: Physico-Chemical Characteristics of Wastewater from Bakelite Manufacturing Industry by V Arutchelvan, V Kanakasabai, R Elangovan and S Nagarajan; Chapter 26: Limnological Studies of Potsangbam River, Manipur by Laishram Kosygin and Haobijam Dhamendra; Chapter 27: Water Quality Management for Jagath Tank, Gulbarga, India: A Case Study by K Vijaykumar, Shashikanth Majagi, B Vasanthkumar and Murali Jadesh; Chapter 28: Seasonal Variations in Species Composition of Aquatic Hyphomycetes in Two Temperate Streams by S C Sati and N Tiwari; Chapter 29: Assessment of Groundwater Quality in Visakhapatnam Area, Andhra Pradesh, India by Y Prasanna Kumar and P King; Chapter 30: Effects of Polluted Water Irrigation on Hemagglutination and Thermal Stability of Pissum sativum Lectin by R B Lal and K D Saxena; Chapter 31: An Assessment of Water Quality of River Cauvery at Mettur, Salem District, Tamil Nadu in Relation to Pollution by V Mathivanan,P Vijayan and Selvi Sabhanayakam; Chapter 32: Study of the Influence of Aquaculture Development on Environment: A Remote Sensing Approach by P Venkateswarlu, M V Rao, Kiran and Ramamohan.