Download or read book Aquatic and Semi-aquatic Plants of the Lower Ganga Delta written by Kumudranjan Naskar and published by Daya Books. This book was released on 1990 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the book the author discussed in brief the angiosperm flora of the fresh-water environment from the lower Ganga Delta regions of West Bengal. These individual flora should be familiar in terms of their correct nomenclature, identity, key notes, ecological setup, phenology, physiognomy and economic importance as well. It is also pointed out how far these plants are weedy and how these can be controlled and/ or utilized. There is a common belief that in the Universe each and every individual is correlated; without one the other cannot be successfully complete their life-cycle. So, for our own benefit and to avoid the pollution or to keep the nature in balance like others, these aquatic ecosystem should be conserved and scientific means and methods should be applied. Taking this view in mind, the flowering plants of the freshwater ecosystems (327 numbers) are discussed in relation to its taxonomy, Ecology and Economic Importance or potentialities. All these plant species were collected from the field by the author himself and studies the above subject at the field, the herbarium and laboratories. The experimental trials have also been made in the laboratories and in the agriculture and aquaculture ponds as well. Contents Chapter 1: Biology of the Aquatic Plants; Chapter 2: Ecosystems; Ecosystem components (aquatic-ecosystems), Biotic components of the aquatic ecosystem, Abiotic components of the aquatic ecosystem, Ecological pyramids in the aquatic environments, Productivity concept, Some of the climatic factors in the aquatic ecosystems, Light, Temperature, Water, Carbon dioxide, Nitrogen, Wind velocity, Soil, pH; Chapter 3: Climate of the Lower Ganga Delta in West Bengal; Chapter 4: Manipulation of Some Biotic Factors in Aquatic Ecosystems; Chapter 5: Classification of the Marshy/ Aquatic Plants; Chapter 6: Classification of the Marshy/ Aquatic Plants; Free-floating hydrophytes, Rooted hydrophytes with floating leaves, Rooted submerged hydrophytes, Rooted emergent hydrophytes or helophytes or amphibious plants, Wet land hydrophytes or semi-aquatic plants; Chapter 7: Different types of the aquatic and marshy environment of this delta; Chapter 8: Different Types of Macro-vegetation Zones in the Marshy Areas of the Lower Ganga Delta; Chapter 9: Problems Caused by the Aquatic Weeds in the Lower Ganga Delta; Chapter 10: Some Common Aquatic Weeds and their Extent of Infestation; Chapter 11: Transmission or Migration of the Aquatic Weeds; Chapter 12: Methods of Controlling Aquatic Weeds; Manual and mechanical control or physical methods-merits of physical methods-demerits of physical methods, Chemical control or herbicidal methods, Fertilization methods of control, Control through utilization; Chapter 13: Importance of the Ecological Life-cycle Studies for Aquatic Plants; Chapter 14: Economic Used or Utilization of the Aquatic Plants; Chapter 15: Discussion Regarding the Aquatic Flora of Lower Bengal; Chapter 16: List of the Common Aquatic, Semi-aquatic, Marshy and Moist loving Plants from the Lower Ganga Delta in West Bengal; Chapter 17: Keys to the Families and Brief Diagnostic Characters of the Freshwater loving Plants; Chapter 18: Taxonomic Enumerations; Chapter 19: Bibliography of the Freshwater Plants; Chapter 20: Index to the Scientific Names, Families Names and Generic Names.