GEOG 1220 Lecture Notes - Lecture 16: Bottom Trawling, Drift Netting, David Suzuki
3 Dec 2015
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Document Summary
Fish is most highly traded food commodity exported by canada (canada is 7th largest exporter) Looks like it will continue to increase. Driftnet and longline (can lead to unintended catch, could be illegal and just throw dead fish over) Bottom trawl (can tear up coral and such) Nfld. cod fishery shut down in 90s due to concern for cod stalks. Recent increase in value of crustaceans (crab and lobster) **fishing down the food chain (txt) -> moving down foodchain in what we harvest. The controlled human cultivation of specific freshwater or marine species in enclosed areas. Certain spaces of ocean turned into spaces for aquaculturalists to farm fish. Species grown depends on market demand or food requirements. Certain types of fish are easier to grow than others (salmon can thrive in cold water) For personal use and low volume regional sales. Farming of non native species (atlantic salmon in dc)
