Fishing Food for human consumption – Globally, fish is ~20% of animal protein consumed Animal feed (both aquaculture & livestock) Natural products – Inverts,

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Presentation transcript:

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 …

Fisheries by Their Nature are Extractive; They Alter the Natural Environment anthropogenic effect

California Marine Landings

RankPortMillions of PoundsMillions of Dollars 1New Bedford, MA Dutch Harbor-Unalaska, AK Kodiak, AK Hampton Roads Area, VA Cape May-Wildwood, NJ Honolulu, HI Dulac-Chauvin, LA Naknek-King Salmon, AK Seward, AK Cordova, AK Gloucester, MA Brownsville-Port Isabel, TX #32=LA ($26.6M) #46=Ventura ($16.6M) #71 SB ($6.7M) 2004 landings by port

What Landings Mean Landings are the required reporting of amounts of harvested fish Landings are a function of … stock size, type of fishery, effort, technology, harvest policy, market & reporting honesty Care must be taken in assessing time histories of landings

What is Catch?? Catch = (Catchability) (Effort) (Biomass) Catchability is f(skill, technology,…) Effort is hours, # trawls, … = f(profit, …) Biomass is the stock abundance Profit to fishery = (price) (Catch) – (Costs) Profit drives effort… Price = f(market, …) Costs = f(fuel, distance to port, biomass, …)

Market Squid Lobster Abalone Rockfish Sea Urchin Shark Commercial Fishery Landings in Santa Barbara

What we Fish? Pelagics – sardine, anchovies, tuna, swordfish, … Groundfish – “ red snapper ”, sea bass, rockfish,... Invertebrates – squid, sea urchin, abalone, lobster, Dungeness crab, Macrophytes – kelp

California Commercial Landings Commercial Landings (M Lbs) Data from

California Commercial Landings Commercial Landings (M Lbs) Data from

California Commercial Revenue Commercial Revenues ($M)

California Commercial Revenue 1999

California Commercial Revenue 1999

California Commercial Revenue 1999

2010 CA Fisheries Summary Commercial landings (198,000 Mt) were up 23% compared with 2009 but a 22% decline from 2000 Ex-vessel values were nearly $175M, an increase of 56% from 2009 Market squid was biggest by landings (~130,000 Mt) and ex-vessel value ($73.8M) Large landings also for pacific sardine, northern anchovy, red sea urchin & pacific mackerel Large ex-vessel values also for Dungeness crab, chinook salmon, urchin & lobster 2010 CA Fishery Summary

California Recreational Fishery 1000 ’ s trips (1998/99)

California Recreational Fishery Landings (1000 fish)

What Recreational Fisheries Catch? Man-made structures – SoCal – tuna/mackerel (39%), croaker (19%) – NoCal - silversides (31%), surfperch (27%) Beach – SoCal – surfperch (63%) NoCal – smelt (72%) CPFV – SoCal – rockfish (33%), sea bass (16%) – NoCal - rockfish (92%) Private – SoCal – sea bass (23%), tuna/mackerel (17%) – NoCal – rockfish (60%)

How we Fish? Pelagics & Squid – purse seine, line, … Groundfish – trawl nets, gill nets, dredge, fish traps, … Invertebrates – hand collection, traps, trawl nets, … Macrophytes – kelp mower

Purse Seine

Anchovy Schooling

Squid Fishing at Night

Red dots are squid boats

Purse Seines & Bycatch

Line Fishing

Long Lines

Stern Trawls

Otter Trawls

Gillnets

Urchin Diving

Fish Traps

Crab Pots

Lobster Trap

Kelp Harvester

Kelp Landings