municipal shellfish restoration: forty years of experimentation and production on cape cod, ma
DESCRIPTION
MUNICIPAL SHELLFISH RESTORATION: FORTY YEARS OF EXPERIMENTATION AND PRODUCTION ON CAPE COD, MA. Sandy Macfarlane Coastal Resource Specialists ICSR 2008. CAPE COD, MA 15 Individual municipalities Varying shellfish regulations Each town responsible for - PowerPoint PPT PresentationTRANSCRIPT
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MUNICIPAL SHELLFISH RESTORATION: FORTY YEARS OF
EXPERIMENTATION AND PRODUCTION ON CAPE COD,
MA.
Sandy MacfarlaneCoastal Resource Specialists
ICSR 2008
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CAPE COD, MA
15 Individual municipalities
Varying shellfish regulations
Each town responsible for propagation and management within its borders
Tourist-based economy regionally
Most towns have commercial wild, commercial aquaculture and recreational shellfish interests
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Towns bought quahaug spawning stock from Cape Cod Bay or contaminated relays from the New Bedford area
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Early soft shell clam transplants using a single harrow
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Mechanized plowing for clam transplants
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Using plowing and netting to try to catch a
set of seed clams
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A Boston-bound barge entering the Cape Cod Canal ran aground on rocks, spilling 175,000 gallons (700,000 liters) of diesel fuel into the bay (in September 1969).
Evidence … suggests the effects of oil spills could be indefinite. Thirty years after the Massachusetts catastrophe, significant oil residues remain in local salt marsh sediments, according to researchers at the Woods Hole Oceanographic Institution.
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Hatchery seed quahaugs first shipped from North Carolina
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Floating sand-box rafts
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Diverse raft designs
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Bottom Culture
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Land-based facilities
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Spawning
Sieving larvae
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Phytoplankton and larval culture
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Inexpensive Gear
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Upwellers using free jelly buckets with tight-fitting lids
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Upwellers proved to be more space-efficient than floating sand-filled rafts
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Program Expansion
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Conventional, professional plumbing
Space for education/training
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MassAlgaeCulture
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Quahaugs or hard clams: the workhorse of shellfish propagation efforts
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Soft shell clams
Bay Scallops
American oysters
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Harwich Shellfish Facility
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Heunz Proft and their space-saving upweller
array
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Local High School Intern
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The switch from traditional quahaug culture to oysters
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Field Trials – catching spat and grow-out
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Grow-out
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Floating bags
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Bay Scallops
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Transplanting hatchery seed
Enhancing a public resource
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COASTAL RESOURCE SPECIALISTS ICSR'05
MUNICIPAL SHELLFISH FACILITIES
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COASTAL RESOURCE SPECIALISTS ICSR'05
HATCHERIES AND UPWELLERS
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COASTAL RESOURCE SPECIALISTS ICSR'05
IMPROVING BARREN AREAS
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Public Fishery
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Tourists and residents both enjoy shellfishing
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COASTAL RESOURCE SPECIALISTS ICSR'08
LICENSING COMMERCIAL AQUACULTURE
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COASTAL RESOURCE SPECIALISTS ICSR'05
NECESSARY INGREDIENTS FOR RESTORATION
SOCIAL CLIMATE