PPT-Aquatic Biodiversity Chapter 8

Miller and Spoolman 2010 Core Why Should We Care about Coral Reefs Coral reefs form in clear warm coastal waters of the tropics and subtropics Among the oldest most diverse and most productive ecosystems. The complexity and rich diversity of life found in forests provides many vital services to human beings Nonetheless humans are destroying forest biodiversity at an alarming rate The conversion of forests to agricultural land overgrazing unsustainabl Petritz Director that all persons shall have equal opportunity and access to the programs and facilities without regard to race color sex religion national origin age marital status parental status sexual orientation or disability Purdue University 75 Use of algae and aquatic macrophytes as feed in small-scale aquaculture – A review 6.3 PProduction or cultivation techniques have not been developed for most of the submerged macrophytes, pr From Biodiversity . to Ecotoxicology. Professor John O’Halloran. School of Biological, Earth & Environmental Sciences . &. Environmental Research Institute. 1. The value of forest ecosystems. Freshwater Biomes. Freshwater is less than 3% of the Hydrosphere. . 90% of the freshwater is locked beneath the Earth’s surface. . Water is cycled through evaporation and transpiration from the atmosphere to the land and back again. . Win . Maung. Chairman. Myanmar Environment Institute (MEI). To . protect . ecosystem services, biodiversity conservation is . essential. -(. supporting services. —e.g. nutrient cycling, soil formation, primary production; . Organisms and Niches. Estuaries. Definition. A partially enclosed area of coastal water where sea water mixes with freshwater.. Salt Marshes. The ground here is saturated with water and there is little oxygen, so decay takes place slowly. It has a surface inlet and outlet, and contains many invertebrates. It is also the breeding ground for many ocean animals. Ex. crabs and shellfish.. The Nile Perch. Core Case Study: A Biological Roller Coaster Ride in Lake Victoria. Loss of biodiversity and cichlids. Nile perch: deliberately introduced. Frequent algal blooms. Nutrient runoff. Spills of untreated sewage. The Nile Perch. Core Case Study: A Biological Roller Coaster Ride in Lake Victoria. Loss of biodiversity and cichlids. Nile perch: deliberately introduced. Frequent algal blooms. Nutrient runoff. Spills of untreated sewage. Coral reefs form in clear, warm coastal waters in tropical areas. Tiny animals (polyps) and algae have a mutualistic relationship. Polyps secrete calcium carbonate shells, which become coral reefs. Core Case Study: Why Should We Care about Coral Reefs?. It is the variety of all the different living things and their homes on the planet. . BIO. . DIVERSITY. Bio= biological organisms . -living things!. diversity= the amount of variation. Case Study: Protecting Whales: A Success Story… So Far (1) . Cetaceans: Toothed whales and baleen whales. 8 of 11 major species hunted to commercial extinction by 1975. 1946: International Whaling Commission (IWC). Jason . Zheng. 8-1: What is the General Nature of Aquatic Systems. The Earth is made mainly of Water.. Saltwater covers around 71% of the earth’s surface.. Freshwater occupies only about 2.2%. Global Ocean: is a single and continuous body of water, geographers divide it into four large areas- Atlantic, Pacific, Arctic, and Indian.. All seven species in danger through:. Trawler fishing. Destroyed many coral gardens that are turtle feeding grounds. Turtles hunted for leather. Eggs taken for food. Pollution of ocean water. Case Study: The Plight of Sea Turtles.