GGR107H1 Lecture Notes - Lecture 10: Marine Ecosystem, Bycatch, Escapement
10 Jan 2017
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Document Summary
California has a warmer climate, hence there might be a different species. Differences in built form, less development in alaska. Rise of harvest during the 19th century, followed by a decline. State management of the system to prevent over shing. Dragging the net on the oor stirs up the seabed/soil, there is no environment for shes and organisms to live. Process bycatch on the boat, throws them overboard, which may overwhelm the marine environment. Fishing shes in the lower part of the food web leads to less food for the rest of the marine ecosystem. Types of information that is crucial to the stock assessment process: pre-season forecasts - used in pre-season planning and stock status reports to identify. 2. longer-term trends key conservation concerns and outlooks for the future. A certain number of shes have to escape in order to maintain enough food for the food web, and breed for next season.
