Identity of Cyanobacterial Toxins Cyanobacterial toxins are toxins produced by cyanobacteria‚ or blue-green algae. They include neurotoxins (e.g.‚ anatoxins)‚ hepatotoxins (e.g.‚ microcystins)‚ skin irritants and other toxins. Both hepatotoxins and neurotoxins are produced by cyanobacteria commonly found in surface water supplies and therefore appear to be of most relevance to water supplies at present.1-3 However‚ the neurotoxins are relatively unstable and‚ as such‚ are not considered to be as
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70% of the Earth is covered by water - which is: 97% saltwater and 2.78% freshwater Fresh water: 77.28% polar ice /glaciers‚ 22.22% groundwater‚ .50 % surface water % liquid fresh water in available to us: less than 1% of all earth’s water (0.024%) Aquatic Biomes: characterized by salinity‚ depth‚ water flow (fast/slow) Salinity Freshwater: streams‚ rivers‚ lakes‚ wetlands Saltwater/ marine: estuaries‚ coral reefs‚ open ocean Rivers & Streams (Lotic= flowing) fast vs. slow water and
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kingdoms ("What Are Dinoflagellates?"). Approximately 4500 species have been described and organized into 550 genera. Almost three quarters of the genera and more than half of the species are fossil. Around 1700 are marine and about 220 are living in freshwater. Their specie growth is skyrocketing‚ between 2000 and 2007 three new dinoflagellate families‚ 22 new genera‚ and 87 new species were described (Hoppenrath‚ 2012). Many dinoflagellates are primary producers of food in the aquatic food webs (Faust
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Cited: 1. Covich‚ A. P.‚ Austen‚ M. C.‚ Barlocher‚ F.‚ Chauvet‚ E.‚ Cardinale‚ B. J.‚ Biles‚ C. L.‚ et al. (2004). The Role of Biodiversity in the Functioning of Freshwater and Marine Benthic Ecocsystems. BioScience ‚ 54‚ 767-775. 2. DeAngelis‚ D. L. (1980). Energy Flow‚ Nutrient Cycling‚ and Ecosystem Resilience. Ecology ‚61‚ 764-771. 3. Downing‚ A. L. (2005). Relative Effects Of Species Composition And Richness On
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The Ramsar Conventional manual. A guide to the convention of wetlands of Kodarkar‚ M.S. (1995) Conservation of Lakes. IAAB publication No.2‚ IAAB Hyderabad. Malathi‚ D. (1999) Ecological studies on lake Hussain Sagar with special reference to the zooplankton Narendra Kumar. (1997) Constitutional law of India‚ pioneer publication. Narsingrao A. (2003) Urban Lakes – Legal issues in their conservation Zafar A.R. (1959) Taxanomy of lakes. Hydrobiologia. 13 (3): 187-299.
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cause of the observed poor water quality of the Lake Lanao. II.Summary Lake Lanao is one of the most important inland bodies of water in the Philippines. It is considered the second largest inland aquatic resource and the biggest and deepest freshwater lake in the Philippines. Noted as a pre-historic and socio-culturally significant lake known the world over‚ Lake Lanao still exudes its majestic and tranquil waters flourishing with great biodiversity of aquatic life forms. Through the years however
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Earth: A Living Planet To care for our planet we must understand how it opperates. Ecology is the study of interactions of organisms with one another and with their physical surroundings. Scientists who study ecology are called ecologists. Earts is a biosphere‚ or a living globe. The biosphere is that part of the Earth in which life exists. Biospheres include all the areas of land‚ air‚ and water on the planet. The biosphere goes about eight kilometers above the Earth’s surface to as far as eight
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Fact Sheets » All Available Sheets ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● SRAC 0100: Site Selection of LeveeType Fish Production Ponds‚ 2010 (R) SRAC 0101: Construction of LeveeType Ponds for Fish Production‚ 2002 (R) SRAC 0102: Watershed Fish Production Ponds: Site Selection and Construction 2002 (R) SRAC 0103: Calculating Area and Volume of Ponds and Tanks 1991 SRAC 0104: Repairing Fish Pond Levees‚ 1998 SRAC 0105: Renovating Leaky Ponds‚ 1998 SRAC 0120: Common FarmRaised Baitfish
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as goldfish‚ koi‚ and common carp. Don’t worry; your pet goldfish isn’t an outlaw…yet. In the aquatic nuisance species world‚ the term Asian carp specifically refers to four species of introduced carp that pose a significant threat to the freshwater aquatic environment: bighead carp (Hypophthalmichthys nobilis)‚ silver carp (H. molitrix)‚ black carp (Mylopharyngodon piceus)‚ and grass carp (Ctenopharyngodon idella). Although they will inhabit lakes and ponds‚ Asian carp prefer large slow moving rivers with high turbidity
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Biomes – is a large‚ distinct terrestrial region that has a similar climate‚ soil‚ plants‚ and animals regardless of where it occurs. It covers a large geographic area and encompasses interacting landscapes. Landscape – is a large land area covering many square kilometers composed of interacting ecosystem. 9 major biomes in the terrestrial biomes 1. Tundra – also called arctic tundra occurs in extreme northern latitudes wherever snow melts seasonally. 2. Taiga – Is the evergreen forest
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