CGC1DMay 2, 2014

Commercial Fishing

REMINDERS!

• You have ONE WEEK to get caught up on missing assignments- due next week.

• Our Unit 3 TEST will be on Wed. May 14th

COMMERCIAL FISHING

• When managed properly, fishing is a renewable resource.

• Ocean fishing is Canada’s oldest industry (dates back to early 1500s)

• More than 80% of our fish are exported

Types and Locations of Ocean Fish

Category Description Examples

Groundfish

Fish that feed and are caught near the ocean floor.

Cod, Pollock, haddock, halibut, redfish

Pelagic Fish

Fish that feed and are caught near the surface.

Salmon, herring, mackerel, tuna, caplin

ShellfishMollusks and

crustaceans.

Shrimp, lobster, oyster, scallop, mussels

Types and Locations of Ocean Fish

• On the maps of the east and west coasts of Canada, label the items below plus all of the usual map essentials.– the provinces (all shaded in green)– the United States (shaded in grey)– fishing banks (shaded in blue)– fishing zone boundary (200 nautical miles dotted line)– Ocean current direction and temperature (blue / red

arrows)– location of fish types

Canada’s East Coast Fishery

&

PRINCE EDWARD ISLAND

U.S.A.

Trout River Whale Carcass

Video clip

Warm Alaska Current

Cold California Current

Canada’s West Coast Fishery

U.S.A.

U.S.A.

Methods of Fishing in Canada

In Shore Off Shore

small boats with limited gear, self-employed

85% of fishers but just 10% of fish

day trips only, no trips during bad weather

low income lobster, shrimp, clam, cod, and

haddock RICK MERCER lobster

large ships with variety of gear, company owned

15% of fishers but 90% of fish out for two weeks or more at a

time, in any weather reasonable income harvest cod, sole, halibut, redfish,

flounder

Methods of Fishing in Canada

Type of Net Description Diagram

Purse Seining circling a school of fish with a net

Gill Netting passing fish get caught in net

Otter Trawling bag-shaped net dragged along the ocean floor

Collapse of Canada’s Fisheries

• VIDEO

•Aquaculture is the breeding and growing of fish in controlled spaces.

•Also known as fish farming.•Found on both East and West coasts• In Canada, farmed salmon outnumber wild salmon

10:1 (so most of the salmon you eat is probably farm raised- check the labels to find out!)

PROS

• Aquaculture provides 4000 jobs in BC and supports some coastal and First Nations communities

• Many farms are taking steps to make the industry safer, such as collecting waste

• Highly regulated industry• Most of the fish food contains

no antibiotics or preservatives• Divers regularly inspect nets

and ocean floor• video

CONS

• Farmed salmon contains more fat and toxic contaminants

• Waste products from fish, uneaten food, and dead fish sink to the ocean bottom and pollute natural habitat

• Lots of diseases amongst farm raised fish

• Sea lice spread to wild salmon• Antibiotics used to prevent

disease contaminate water• Nets often tear, allowing farmed

salmon to escape • Video