FISH BANKS

Maximum possible property at the end of the game

CRITERION OF SUCCESS

account balance residual value of ships

(€ 250 per ship )

+

PROFIT = RECEIPTS - EXPENSES

PROFIT

purchases of ships (auctions and trades)

Fish sale

profit

Shipsale profit

(trades)

interest dues(bankfees)

purchases of ordered

ships

service of ships

- catch x price (€ 20 per fish)

RECEIPTS

fish sale profit

interest

sale of ships

- 10%, if the minimum account balance does not fall below zero

- price reached during the trading session

- harbor: €50 / year /ship- coastal waters: €150 / year /ship- deep see waters: €250 / year /ship

EXPENSES - COSTS

serviceof ships

construction of new ships

auctionand

trade

dues(bank fees)

- new ship: €300 / ship paid this year, use in the next season

- auction - the highest bid

- 15%, if the minimum account balance fell below zero

CATCH

Catch is influenced by:• the number of ships, • weather, • efficiency of fishing

EFFICIENCY OF FISHING(average catch per ship)

Efficiency of fishing- number of fish per ship per year

Density of fish

coastal waters

deep waters

FISHING PROGRESS IN RECENT YEARS

Present

Catch

Number of ships

year

FISH BANKS

Collapse in bluefin tuna stocksICCAT scientists predicted that if the current level of fishing mortality continued, the Eastern Atlantic spawning stock would fall to 18% of the 1970 level and only 6% of the historical level. This trend is corroborated by the dramatic decline in the mean size of fish caught.

• The decline in the Western Atlantic stock was 80% between 1970 and 2007.• The decline in the Eastern Atlantic stock was 74.3% between 1955 and 2007.