Download presentation
Presentation is loading. Please wait.
Published byVanesa Arroyo Moya Modified over 6 years ago
1
Sandy Macfarlane Coastal Resource Specialists ICSR 2008
MUNICIPAL SHELLFISH RESTORATION: FORTY YEARS OF EXPERIMENTATION AND PRODUCTION ON CAPE COD, MA. Sandy Macfarlane Coastal Resource Specialists ICSR 2008
3
CAPE COD, MA Varying shellfish regulations Each town responsible for
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
4
Towns bought quahaug spawning stock from Cape Cod Bay or contaminated relays from the New Bedford area
5
Early soft shell clam transplants using a single harrow
6
Mechanized plowing for clam transplants
7
Using plowing and netting to try to catch a set of seed clams
8
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.
9
Hatchery seed quahaugs first shipped from North Carolina
10
Floating sand-box rafts
11
Diverse raft designs
12
Bottom Culture
13
Land-based facilities
14
Spawning Sieving larvae
15
Phytoplankton and larval culture
16
Inexpensive Gear
17
Upwellers using free jelly buckets with tight-fitting lids
18
Upwellers proved to be more space-efficient than floating sand-filled rafts
19
Program Expansion
20
Conventional, professional plumbing
Space for education/training
21
Mass Algae Culture
22
Quahaugs or hard clams: the workhorse of shellfish propagation efforts
24
Soft shell clams Bay Scallops American oysters
25
Harwich Shellfish Facility
26
Heunz Proft and their space-saving upweller array
27
Local High School Intern
28
The switch from traditional quahaug culture to oysters
29
Field Trials – catching spat and grow-out
30
Grow-out
31
Floating bags
32
Bay Scallops
34
Transplanting hatchery seed
Enhancing a public resource
35
MUNICIPAL SHELLFISH FACILITIES
COASTAL RESOURCE SPECIALISTS ICSR'05
36
HATCHERIES AND UPWELLERS
COASTAL RESOURCE SPECIALISTS ICSR'05
37
IMPROVING BARREN AREAS
COASTAL RESOURCE SPECIALISTS ICSR'05
38
Public Fishery
39
Tourists and residents both enjoy shellfishing
40
LICENSING COMMERCIAL AQUACULTURE
COASTAL RESOURCE SPECIALISTS ICSR'08
41
NECESSARY INGREDIENTS FOR RESTORATION
SOCIAL CLIMATE COASTAL RESOURCE SPECIALISTS ICSR'05
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.