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Life on the Continental Shelf - Marine Biology - Lecture Slides

Slides, Biology

Post: January 19th, 2013
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These are the lecture slides of Marine Biology. Key important points are: Life on the Continental Shelf, Continental Shelf, Extension of the Continent, Continental Shelves, Subtidal Ecosystem, Subtidal Abiotic Factors, Subtidal Organisms, Distribution of Marine Life, Subtidal Communities, Soft Bottom Subtidal Communities
These are the lecture slides of Marine Biology. Key important points are: Life on the Continental Shelf, Continental Shelf, Extension of the Continent, Continental Shelves, Subtidal Ecosystem, Subtidal Abiotic Factors, Subtidal Organisms, Distribution of Marine Life, Subtidal Communities, Soft Bottom Subtidal Communities
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Life on the Continental Shelf Docsity.com Continental Shelf: • shallow submerged extension of the continent Docsity.com THE CONTINENTAL SHELVES • Average width – 75 km, narrower in areas with strong current; • Average slope – 0o07’; • Average depth flattest portion– 60 m; • Average depth where greatest change of slope – 130 m; • Hills of 20 m or more and depression of 20 m or more Docsity.com Photic 100m (low tide to shelf break)) (Tidal zone) Docsity.com To help protect your privacy, PowerPoint has blocked automatic download of this picture. SUBTIDAL ECOSYSTEM • Marine areas that are never exposed during low tide i.e. always submerged. • Also known as the sublitoral zone Docsity.com SUBTIDAL ABIOTIC FACTORS • Influenced by sedimentation processes (especially shallow areas) - lithogenic sediments (physical and chemical weathering of rocks (turbidities, volcanic ash, red clay)) - biogenic sediments (shells and skeletons of marine organisms) Do..

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