Fishing. Food for human consumption Globally, fish is ~20% of animal protein consumed Animal feed (both aquaculture & livestock) Natural products Inverts, fish & kelp Cultural identification Direct employment for 200 M people globally. Global Fisheries ….
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Fisheries by Their Nature are Extractive; They Alter the Natural Environment
2004 landings by port
stock size, type of fishery, effort, technology, harvest policy, market & reporting honesty
Catchability is f(skill, technology,…)
Effort is hours, # trawls, … = f(profit, …)
Biomass is the stock abundance
Profit drives effort…
Price = f(market, …)
Costs = f(fuel, distance to port, biomass, …)
Commercial Fishery Landings in Santa Barbara
2010 CA Fishery Summary
Red dots are squid boats