Gear Up, Situation Solvers
Age 11, group or independent
45 minutes, indoors or outdoors

Use problem-solving questions to simulate the decisions that
fisher folk make about gear used for fishing.

Gear-Up situation solvers, pencils, calculators (optional)

- Decide whether this will be an individual or small group activity.
(Six decision-making situations are described.)
- Duplicate and distribute the gear-up situation solvers, pencils and calculators.
- Advise everyone that the process for obtaining the answers is more important
than the correct answer. (This activity is excellent for brainstorming and
collaborative effort. However, check the correct answer because in many
instances the answer to the next question builds on the previous answer.)

- Read the scenarios for each gear type.
- Answer the questions.
- Review the answers as a group.
- Discuss the problem-solving technique used, and relate it to
how fisher folk make their decisions.

- Provide family and friends at home the gear-up situation
solver sheets and help them make decisions similar to those
that fishermen and fisherwomen make daily.
Gear-Up Situation Solvers
Decision 1
From May through September, fisher folk in northern and central California fish for
king salmon with hook and line gear. The gear is towed by boats at a speed of about two
miles per hour. This fishing method is called trolling. The boats and fisher folk are
commonly referred to as trollers. Trollers tow 4 to 6 fishing lines at one time. Hooks tied to
leaders (short pieces of clear line) are clipped onto the fishing lines at 3-fathom intervals (18 feet).
Maria is a fisherwoman from Bodega Bay. She and her crew are getting ready to troll
for king salmon.
1. If the boat has 6 lines and the crew has 6 dozen hooks to attach to the
lines, 1 dozen for each line, what is the maximum depth in feet and fathoms that
Maria's crew can catch king salmon?
(Hint: one fathom = 6 feet; one dozen = 12)
2. Maria pays $5.00 a dozen for her fishing hooks. If she buys new hooks for all
of her fishing lines, how much will the hooks cost her?
After salmon season is over, Maria takes her boat and her crew to San Diego to troll
for Albacore tuna. Albacore congregate on the warm (blue water) side of upwelling
fronts, often great distances from shore. To catch albacore, Maria uses hooks with
feathers attached to them, called jigs. She attaches a jig to each of her 6 fishing lines and
lets them out to trail behind the boat, skimming the water surface. Maria trolls for albacore
at a speed of 5 miles per hour. She and her two crew members spend 15 hours each
day fishing, and they fish for a total of 6 days. For their work each crew member earns 15%
of the gross value of the catch.
3. How many miles did Maria and her crew travel while trolling for albacore this trip?
4. How many albacore did Maria's crew catch if they averaged catching 5 per
hour over the course of the 6-day trip?
5. The albacore tuna in Maria's catch weigh an average of 15 pounds each.
How many pounds does Maria have to sell to the tuna cannery?
6. If the cannery pays Maria $1.20 a pound for her tuna ($2,400 per ton), how
much money does Maria receive for her catch?
7. How much does each crew member receive from Maria as payment?
Discussion: 1. What other operating expenses besides wages does Maria have to
pay to maintain her business?
(Possible answers: fuel, groceries for the trip; boat payment; boat
insurance)
2. What other living expenses must she pay for out of her profit?
(Possible answers: normal living expenses such as mortgage, utilities,
groceries, medical and dental bills etc.)
Decision 2
Frank is a round-haul fisherman from San Pedro. He fishes mostly for squid,
mackerel, and sardines. Frank's boat is a 70-foot wooden seiner that he operates with a crew
of eight. He needs a large crew to restack his purse seine net on the deck after each set.
When Frank fishes every day, he uses 3,000 gallons of fuel per month at $.75/gal.
Groceries for his crew cost $1,080 a month. Health insurance costs for the crew
are $480 per man per month. Fish spotters, who fly over the fishing grounds and can
see schools of fish from the airplane, earn 6% (6/100ths) of the total value of the catch
on each fishing trip. The crew earns 55% (55/100ths) of the total value, less trip
expenses and their share of the cost of groceries.
Trip expenses that are deducted before figuring the crew's share are fuel,
health insurance, and the fish spotter's share.
The cost of groceries is divided by the number of crew plus the captain, and that
amount is deducted from each crew share.
Frank is ready to go fishing, and he has to consider the following options:
Should he fish for sardines? He would have a 30-ton limit at $90 per ton because that
is all the cannery can handle on this day. Or should he fish for mackerel at $140 a ton?
Or should he catch squid at $160 a ton?
Frank studies the weather to determine the best place to fish and where the fish
might be. Squid are often found on the back side of Catalina Island, but a storm is
brewing, and crossing the Channel to get to Catalina would be dangerous. The ocean would
be too rough. His spotter pilot tells him that schools of mackerel also were near
Catalina, but a dense school of sardines was just outside San Pedro harbor. Frank decides to
go fishing for sardines.
He leaves the harbor at nightfall, around 7 PM. It takes him one hour to find the fish
the airplane spotter had located earlier. He makes one set and catches his 30-ton limit.
He is back in the harbor by midnight and offloads his catch at 5 AM the next morning.
1. How much money did Frank receive for his sardine catch?
2. What were the trip expenses for this trip?
(Hint: figure the monthly cost for each trip expense, divide each by 30, then add
average daily costs together.)
3. What was the average cost of groceries for this trip?
4. How much should be deducted from each crew member's share for groceries?
5. How much did each crew member earn for the night's fishing?
(Hint: don't forget to deduct the cost of groceries.)
6. How much did the spotter pilot earn?
7. How much did Frank earn for his night of fishing after paying all his fishing
expenses?
Decision 3
Abe has fished for the past 70 years off the southern California coast. Many fisher folk go
to Abe for advice on the ocean and fishing gear. Marci has just decided to enter the
fishing business. She meets with Abe to discuss the fishing gear she should buy to maximize
her production and profit. Marci wants to fish around the Channel Islands so she does not
have to spend too many nights away from her family. Abe talks to Marci about the
different species harvested in the area. These include prawns, sea cucumbers, halibut,
California spiny lobster, squid, rockfish, swordfish, tuna and sea urchins. Abe shows Marci
the different types of gear used to harvest these species and makes her a list that looks like
the one below.
| Species | Gear Type |
| Trawl | Round-haul | H&L | Diving | Gillnet | Trap |
| Prawns | x | | | | | x |
| Lobster | | | | | | x |
| Squid | | x | | | | |
| Rockfish | x | | x | | x | |
| Swordfish | | | (Harpoon) | | x | |
| Tuna | | x | x | | | |
| Urchins | | x | | x | | |
| Cucumbers | x | x | | x | | |
| Halibut | x | | x | | x | |
Marci notices that trawl gear is used to catch more species than any other gear type on
the list. She decides to buy trawl gear and fish for California halibut, prawns, and
sea cucumbers.
Abe tells Marci that she needs a bottom trawl. That is a net that skims the ocean floor
in depths from 18 to 40 fathoms for halibut, 18 to 120 fathoms sea cucumbers, and 90
to 170fathoms for spot prawns. Marci decides to fish for halibut and spot prawns from
June through October and mainly for sea cucumbers during the winter. Marci knows that
trawl gear usually catches a larger volume of fish per trip than other types of gear.
Abe tells Marci that she needs a single rig shrimp trawl with a 1.5-inch mesh in the
catching bag (also called a codend) to catch spot prawns. For halibut and cucumbers, Marci's
trawl net must be made of 7.5 inch mesh in the codend if she wants to fish in the halibut
trawl grounds, from 1 to 3miles offshore in an area extending from Pt. Arguello to Pt. Mugu.
Otherwise, trawling must be done 3 miles or more from the mainland. Abe reminds her
of other trawl regulations in southern California: No fishing is allowed in the halibut
trawl grounds between March 16 and June 14 to protect halibut when they are spawning. To
fish prawns, Marci must fish 3miles or more from shore, or deeper than 25 fathoms.
The season for spot prawns runs February through October between Point Arguello and
Point Dume. Outside that area fishermen can catch prawns all year long. And California
halibut may be fished year-round outside 3 miles. He advises her to get a copy of the Fish
and Game regulations, along with her fishing license and permits.
1. Does Marci need different nets for halibut and spot prawns?
2. Fishing regulations enforced by the Department of Fish and Game prohibit
Marci from selling halibut smaller than 22 inches long or weighing less than
4pounds. The average halibut caught weighs 10 pounds, and the market
price for California halibut is $2.25 per pound. If Marci catches 10 halibut at
the average weight, how much money could she sell them for?
3. If Marci earns $.50 a pound for sea cucumbers, $6 a pound for prawns, and
$2.25 a pound for halibut, which species can she get the most money for if she
catches the same number of pounds of each species?
4. Marci goes fishing for sea cucumbers and catches 500 pounds in one day. The
next week she fishes California halibut and catches 28 fish at an average of 12
pounds apiece. She has to put her boat in drydock for repairs. When the boat
is fixed, she changes nets and fishes spot prawns, catching 250 pounds. How
much does she earn for each species?
5. Which species earned her the most money?
Decision 4
Sea urchin diving is not like other forms of fishing: divers average less than 150
days of work in a year. Big ocean swells, strong winds, or both, make diving
very dangerous both for the divers and for the crew responsible for loading the urchins
on the boat. Since the ocean is not flat calm very often, divers must learn how to
work in moderately rough weather in order to stay in business. That means they
must learn how to read the weather patterns, then choose areas to work where they
can reduce the effects of the weather.
Normally divers can work in winds of less than 20 knots. Then the wind
chop (smaller waves coming at short intervals) does not pose a great hazard when
moving from spot to spot or loading heavy bags of sea urchins on deck. When the
wind blows more than 20 knots, or when the swell increases (large waves coming at
long intervals, such as a 12-foot swell with 15 or 20 seconds between crests), divers
must be very careful, if they go to work at all, to choose an area protected from wind
and swell. This safe spot is called a lee. There are several lees around Santa
Barbara and the Channel Islands, depending on the direction of wind and swell.
Bill has been an urchin diver for more than 20 years. He knows that when the
wind blows from the northwest, or a big swell comes from the north, then the
southern side of the islands or coast is in the lee. If a big swell or wind is coming from
the south, then the northern side of the islands is in the lee. If the wind is blowing
strong from the northwest, and a big swell is coming from the south, Bill knows
that attempting to cross the Channel would be extremely dangerous and diving would
be very difficult. On those days he goes hiking in the hills.
1. Bill wakes up early one morning and listens to the weather radio. The wind is
blowing 22 knots northwesterly, but the swell is only 5 feet at 8 seconds (wind
chop). Looking at the map (on page 12), where would Bill dive to
escape the wind?
2. The wind is calm but the forecast reports a 10-foot south swell, generated
from a tropical storm in Mexico. Hearing this, where does Bill decide to dive?
3. The wind is blowing 20 to 30 knots northwest and a south swell is reported at
the mid-channel buoy at 8 feet at 20 seconds. What should Bill do?
Besides the weather, a diver must also watch the depth and time he dives to
avoid getting the bends, a serious injury caused by spending too much time diving
deeper than 33 feet underwater. The Navy dive tables tell Bill he can spend unlimited
time underwater at depths less than 33 feet, and he can dive safely at a 60-foot depth
for 60minutes. Deeper than 60feet, his time on the bottom decreases rapidly.
For example, at 90 feet, he can spend only 30 minutes.
4. If Bill can harvest 200 pounds per hour working at 60 feet, how many pounds of
urchins can he harvest working at 90 feet?
5. The wind is blowing 18 knots northwest one morning and a south swell is
reported to be 5feet at 15 seconds. Bill knows 2 spots on the south side of the
islands where there are sea urchins, one shallow and one deep. He also knows
that the long period swell will make the shallow water dirty and will make diving
difficult because of the surge. He surveys the deep spot and doesn't find many
urchins. What should Bill do?
a. Go to the shallow spot and work in difficult conditions.
b. Move to the north side of the island and work in the wind.
c. Go home.
6. Coastal sea urchins often bring $.15 more a pound than urchins harvested at the
islands. The weather is marginal and Bill must decide whether to risk crossing
the channel to pick urchins or to run up the coast. He could average 500 pounds
a day at the islands, but the fuel to get there costs $90, plus the wear and tear
on his boat. Or he could run up the coast but he will average only 300pounds,
although the fuel will only cost $25. The price of coastal urchins is $1 a pound.
At which place will Bill earn the most money?
7. If you were Bill, what decision would you make?
Discussion:
Identify the areas around the Channel Islands that are in the lee when the
wind blows from the northwest.
Which areas are protected when the swell comes from the south?
Decision 5
Joe is a gillnet fisherman from Morro Bay who fishes swordfish from September to January.
He closely watches the weather and monitors water temperature breaks, places where
cold and warm currents meet, because those areas have abundant nutrients in the water,
and the nutrients attract bait fish and larger fish. Joe fishes swordfish from the Oregon
border to Mexico and up to 200 miles out to sea, and his typical trip lasts 10 days.
1. On his first trip of the season, Joe spends the first 24 hours steaming out to the
grounds and the 10th full day steaming in. Once on the grounds he looks for signs,
such as birds diving into the water for food, to help him locate concentrations of bait.
Each day he spends 6 hours surveying the ocean, motoring around looking for a
likely place to set his net. He sets at dusk and drifts for most of the night. He
spends 4 hours a day pulling the net, idling the engine to operate the hydraulic net
reel. The rest of the time, the engine is off. Joe figures that he uses 6.5gallons of
fuel per hour steaming, 5gallons per hour surveying, and 2 gallons per hour idling.
How much fuel did Joe consume on his first 10-day swordfish trip?
2. Joe has been approached by Felix, a spotter pilot who wants to help Joe find fish. A
spotter pilot usually receives 15% of the total value of the season's catch, whether
he flies every day or not, and Joe must sign a contract with the pilot for the entire
season. Usually a spotter pilot can increase an individual's swordfish catch by 50%.
The season lasts for 5months and about half of that time the weather is inclement
(cloudy) and the pilot cannot fly to spot fish. A swordfish fisherman who does not
use an airplane can gross $150,000 in 5 months, on average.
a. Based on an average season's earnings, how much money will Joe
make if he uses a spotter pilot?
b. How much must Joe pay Felix?
c. Should Joe hire Felix to spot for him, and why?
3. In late November Joe is ready to leave on another swordfish trip but he can't decide
where to go. His last trip was productive, fishing 180 miles to the west. And the
weather is not expected to change in the near future. For the past three years at
this same time, however, an area 180 miles south had good fishing conditions
clear blue water, the proper current flow, and a good temperature break supporting
abundant bait. A lot of swordfish were caught in that area, but now fishing in the
south is slow. Should Joe go south on a hunch or back west?
4. It's two weeks before Christmas, a time when swordfish usually sell for a high price.
But this December has been stormy, and it looks as though winter might be coming
early. Joe's wife and children want him to come home before Christmas. Joe would
like to make one last big trip and catch a lot of swordfish so he'll have enough
money to carry his family through winter, when he can't fish. Joe's best friend has
been making short, 2- to 3-day trips not too far from home and catching a few fish
each time. What should Joe do? Why?
a. Tie up the boat until after Christmas and enjoy being with his family.
b. Go offshore for a long trip, hoping to catch a lot of fish.
c. Fish locally, catch a few fish at the high price, and be home for the
holidays.
Decision 6
Rick has trapped lobsters in southern California for 10 years and now wants to market his
lobsters himself to earn more money. In order to market his lobsters, he needs to guarantee a
consistent supply each week. He plans the amount of gear he fishes to satisfy the demand of his
markets, taking into account the amount of gear he can service on an average day.
Working with a deckhand, a trapper can service 200 traps per day, on average, or 600 traps
per week. This allows for unworkable weather and also allows 1/2 day traveling to and from the
fishing grounds. The average catch per trap at the beginning of the season is 1.5pounds. Later in
the season, the average catch usually drops to .5pound per trap.
1. It is the beginning of the season and Rick finds a buyer who wants 1,000 pounds
of lobster per week.
a. How many pounds of lobster can Rick catch in a week's time?
b. How many more pounds does Rick need to fill the order?
2. To meet his market order, Rick contracts to sell the load of another trapper, who
can produce as much as Rick does. Now Rick has more lobster than his order
calls for, and he needs to find a market for the extra lobster produced by the
second trapper. If he sells the extra lobster to a local market, he can earn $8.75 a
pound wholesale. If he exports the lobster to Europe or Asia, where spiny lobster
is highly prized, he can earn $10.50 a pound, but he also must pay for packaging,
labor to box the lobsters, and transportation to the airport, all of which costs 5%
of the wholesale price when exporting 1,000 pounds or more. Under 1,000
pounds, the shipping costs double.
(The lobster buyer usually pays for airfreight and the tariff on the imported lobster.)
a. How much can Rick make (gross) by selling the lobster left over from the first
order in a local market?
b. How much can Rick gross by exporting the leftover lobster?
c. How much can he earn (net) on the second order after he pays the second
trapper $7 a pound for his load:
[1] If he sells to a local market?
[2] If he exports?
3. Because Rick needs at least 200 pounds more on the second order to meet the
1,000-pound discount freight rate for the export market, he contracts with a third
boat.
a. How much can Rick gross by exporting 1,000 pounds of lobster?
b. Now how how many pounds of lobster per week does Rick have to sell
early in the season, subtracting the 1,000 pounds needed for the first order?
- c. How much does Rick earn, less shipping expenses, if he exports all the
lobster except the 1,000 pounds reserved for his first order?
4. What is the shipping cost per pound:
a. For the 800-pound export shipment?
b. For a 1,000-pound shipment?
c. For a 1,700-pound shipment?
Gear-Up Solvers Answer Page
Decision 1 Answers
1. 216 ft. (12 x 18 = 216); 36 fathoms (216 / 6)
2. $30 (6 dozen x $5.00 = $30)
3. 450 miles (5 mph x 15 hrs x 6 days)
4. 450 fish (5 fish per hr x 15 hrs x 6 days)
5. 6,750 pounds (450 x 15 lb average)
6. $8,100 (6,750 lbs x $1.20 lb)
7. $1,215 ($8,100 x .15)
Decision 2 Answers
1. $2,700 (30 tons x $90 per ton)
2. $365 (fuel = 3,000 gals x $.75 per gal = $2,250 / 30 = $75)
(health insurance = $480 per crew member x 8 crew = $3,840 / 30 =$128)
(spotter pilot = $2,700 x .06 (6%) = $162)
($75 + $128 + $162 = $365)
3. $36 ($1,080 / 30 = $36)
4. $4 ($36 / 9 men, including captain = $4 deduction)
5. $156.53
($2,700 - $365 = $2,335 x .55 = $1,284.25 / 8 = $160.53 - $4 - $156.53
6. $162 ($2,700 x .06 = $162)
7. $916.76
($2,700 gross - $365 trip expense = $2,335 - $162 spotter pilot - $1,252.24 crew
wages - $4 groceries for captain = $916.76)
Decision 3 Answers
1. Yes. Minimum mesh size for California halibut is 7.5 inches in the California halibut trawl
grounds; mesh size for prawns is 1.5 inches.
2. $225.00 (10 x 10 pounds x $2.25 = $225.00)
3. Prawns at $6 per pound.
4. $250 for cucumbers (500 lbs x $.50 = $250);
$756 for halibut (28 x 12 x $2.25 = $756)
$1,500 for prawns (250 x $6)
5. Prawns
Decision 4 Answers
1. On the southern side of the islands or coast.
2. On the northern side of the islands.
3. Stay home and take care of chores (or go hiking).
4. 100 pounds (he only has 1/2 hour of bottom time)
5. Bill may do option a. or option b. and still earn a living this day,
although the diving will be difficult. If Bill follows option c,
he loses the cost of the trip and doesn't earn any money. If he
does this often, he will soon be out of business.
6. Islands
(Island urchins = $335 profit (500 * $.85 - $90)
(Coastal urchins = $275 profit (300 lbs * $1 - $25)
Discussion: 7. Is a hard day's work and a dangerous channel
crossing worth the additional $60 profit?
Decision 5 Answers
1. 616 gallons
Steaming = 24 hrs x 2 = 6.5 gals/hr = 312 gals
Surveying = 6 hrs/day x 8 days x 5 gals/hr = 240 gals
Idling = 4 hrs/day x 8 days x 2 gals/hr = 64 gals
(312 + 240 + 64 = 616)
2. a. $225,000 ($150,000 * 150% {1.5} = $225,000)
b. $33,750 ($225,000 * 15% {.15} = $33,750)
c. Yes, Joe should hire Felix.
Joe would earn an average of $150,000 without a spotter pilot but
would net $191,250 with a pilot, after paying the spotter 15% of the total
value of the catch, because the spotter will help him increase his total
earnings by 50%.
3. Joe should return to the west, a spot that has proven to be productive under the current
weather conditions. He should watch for signs that conditions are improving in the south,
however, and be ready to go there as quickly as possible if conditions improve.
4. a. This is not a good alternative because the weather is changeable this time of
year and a few good days might open up. With only one month of season left, a
fisherman needs to maintain a "make hay while the sun shines" attitude.
b. This alternative is too risky. A sudden storm could break the trip or put Joe in a
dangerous position at sea.
c. This is the best alternative, a compromise that gives Joe a chance to make some
money during season, while the price is high, and to be home with his family for
Christmas.
Decision 6 Answers
1. a. 900 pounds (600 traps per week * 1.5 lobsters/trap = 900 pounds)
b. 100 pounds (1,000 pounds/week - 900 pounds/week = 100 pounds)
2. a. $7,000 (800 pounds * $8.75/lb = $7,000)
b. $7,560 (800 pounds * $10.50/lb - 10% = $7,560)
c. [1] $500 ($7,000 - [900 * $7] = $700)
[2] $1,260 ($7,560 - [900 * $7] = $1,260)
3. a. $9,975 (1,000 pounds * $10.50/lb - 5% = $9,975)
b. 1,700 pounds/wk (900 lbs * 3 trappers - 1,000 = 1,700)
c. $16,957.50 (1,700 pounds * $10.50/lb - 5% = $16,957.50)
4. a. $1.05 per pound ($8,400 * 10% = $840 / 800 pounds = $1.05)
b. $.53 per pound ($10,500 * 5% = $525 / 1,000 pounds = $.525 or $.53)
c. $.53 per pound ($17,850 * 5% = $892.50 / 1,700 pounds = $.525 or $.53)
Discussion: 1. What business expenses would Rick incur to fish lobsters?
(Possible answers: fuel, bait, crew expense, boat maintenance and
insurance)
2. What business expenses would Rick incur to sell lobster?
(Possible answers: warehouse space, lobster storage/cooling tanks,
workers, packaging materials, truck or other transportation, insurance)
3. The wholesale price of seafood is set based on the ex-vessel price (the price paid to the
boat), multiplied by 20-30% mark-up for the processor/first handler. The wholesale price
may increase an additional 10% to 15% if the seafood is also handled by a distributor.
The retailer marks up the wholesale price another 40%.
Thus when Rick fishes for lobster and sells his catch to a processor, he receives $7 a
pound. If he sells his own lobster, he can earn about 25% more, and if he exports his
product directly, he can earn as much as 50% more.
4. If the ex-vessel price of lobster is $7, and the wholesale price of lobster to the local
market is $8.75 per pound (marked up 25%), what is the retail price per pound of that
lobster? (Answer: $12.25 per pound)
|