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Fisheries & fishery collapse with economic consequences
Fisheries: pop. of fish for commercial fishing
Fishery collapse: overfishing causes 90% pop. decline in a fishery
-may never recover due to decreased biodiversity & inbreeding depression
-decreases genetic diversity, species diversity
Economic consequences: lost of income for fishermen, lost tourism dollars for communities
Bottom Trawling & Bycatch
Harmful fishing methods that drags a large net along the ocean floor
Bycatch: unintended species (dolphins whales, turtles) are caught in nets
-leads to turbidity, loss of coral reef structure, decreases biodiversity
Fishing down the food web & trophic cascade
-as we deplete fisheries, we move down to smaller fish species
-limits fishery recovery & decreases food supply of animals
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