ZOOGEOGRAPHY - ZOOGEOGRAPHY * the geographical distribution...

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ZOOGEOGRAPHY ** the geographical distribution of animal species & populations on the earth's surface * What controls where an animal lives? * the ecological niche or broader habitat that the species has evolved and adapted into Aquatic Life Zones A ** two major divisions: Saltwater or Marine & Freshwater F * can also be delineated into 3 layers: surface, middle, * important environmental factors to consider: salinity, temperature, access to sunlight, dissolved oxygen, availability of nutrients Marine systems: Coastal Zone: high net primary productivity; contains 3 ecosystems: Estuaries: areas where freshwater and saltwater mix Coastal wetlands: land areas covered with saltwater all or part of the year; Salt marshes & Mangrove forest swamps Coral reefs: found in relatively shallow, tropical waters
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Open Sea: low net primary productivity; divided into 3 vertical zones Euphotic: high levels of sunlight penetrate Bathya l: medium levels of sunlight penetrate Abyssal: very low levels of sunlight penetrate Freshwater systems: F Lakes: classified based on nutrient content and primary productivity
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ZOOGEOGRAPHY - ZOOGEOGRAPHY * the geographical distribution...

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