Brian F' Beal

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Brian F. Beal Professor of Marine
Ecology University of Maine at Machias
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Brian F. Beal Director of Research Downeast
Institute
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Experiences in operating a shellfish hatchery for
soft-shell clam public stock enhancement and
applied research in Maine, USA
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Why a public shellfish hatchery, and why in
eastern Maine?
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Maine Soft-shell Clam Landings (1950 1986)
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If you have millions of hatchery seed, you have
endless opportunities to learn about the most
effective ways to grow seed to commercial sizes
How to condition broodstock ? Whats the best
microalgae to use in the hatchery ? How to grow
seed to a plantable size ? What time of year to
plant seed ? Where in the intertidal should seed
be planted ? What stocking density should be used
? Should protective netting be used, and if so,
what kind ? If seed should be planted in spring,
how do you overwinter it ? Can alternative
methods to hatchery culture be use to produce
seed cost effectively and consistently ?
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If you guys can culture soft-shell clams, is it
possible to culture.
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Hey, would you have any extra tank space for me
to .
Downeast Institute for Applied Marine Research
Education
Beals Island Regional Shellfish Hatchery
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An 8-acre property -- Black Duck Cove on Great
Wass Island in the town of Beals -- to become the
easternmost marine research laboratory and
education center in the U.S.
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molt
Stage I 8 mm 0.3 in
Stage IV 15 mm 0.6 in
molt
Stage II 9 mm 0.35 in
molt
molt and metamorphosis
Stage III 11 mm 0.43 in
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empty
18 pre-fouled tents
18 unfouled tents
18 pre-fouled tents
6 pre-fouled petri-dishes
18 pre-fouled tents
empty
empty
empty
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Empty
Level 1
3 rows of 6 fouled tents
5 cages deployed at each of two shallow-water
(20-25 ft)
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78 units 78 individual lobsters
3 rows of 6 unfouled tents
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3 rows of 6 fouled tents
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6 fouled petri dishes
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3 rows of 6 fouled tents
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Empty
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Empty
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Empty
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Empty shelf
Initially fouled
Initially unfouled
Initially fouled
Fouled dishes
Initially fouled
Empty shelf
Empty shelf
Empty shelf
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• Marine field station for the University of Maine
  at Machias
• Well-equipped marine research laboratory to
  attract marine scientists and their students to
  the downeast coast
• A modern production and research shellfish
  hatchery
• A marine business incubator and,
• An education center with classroom, dormitory,
  and dining facilities for 30-40 students.