Transcript Scallop Aquaculture - Dauphin Island Sea Lab

Scallop Aquaculture
Mariculture
Who Am I?
• Patinopecten yessoensis
• Argopecten irradians
• Placopecten magellanicus
• Others to be noted
– Pecten maximus
– Chalmys opercularis
Show Me The Money $
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$5-6000/ton
1 ton=2200lbs
$2.7/lb
Sea scallop Vs Bay
Scallop
• Japan and China *
• America
• Canada
– Smaller=cheaper
• Difference in pricing
depending on where
– AL (7) vs CO (10)
– We import a lot
– 10.4 mill deficit
Eat Me
This is the Life…
D-shaped
Veliger
Pedi-Veliger
Foot
Trochophore
Spat
Juvenile
Adults release egg and
sperm
Let’s Get IT On
• Reproduce only once
• Hermaphrodites
• Temp/Alkalinity Increase
– Increased spawning
• Epidemic Spawning
–Sperm Competition
• Natural cycle
• Salt water tanks (Hatchery)
How To Do
• Floating Raft
• Sea Ranching/Hanging Culture
– Onion bags (Nursery)
• Sea grass/leaves=Surface Area
– Pearl Nets (Intermediate)
– Grow Out (Adult)
• Longline
• Andon baskets/lantern nets
• Pocket nets
• Ear hanging
• Sowing Culture
– Small load sizes (20-50/ net)
Onion
Pearl
Net
Longline
Lantern Net
Ear Hanging
To Feed or Not to Feed
That is The Question
• NOT
• Filter Feeders
• Natural Environments
– Includes Estuary/Turbidity
• Food is an important factor in
determining where and depths
– 2-100 meters depending on production
method
Me Likey
• Temperature
– Around 25⁰ C (23-28)
• Salinity
– 24-30 ppt
• Depth = food
• Diseases and Predators
– Pseudomonas
– Sea Stars
Not Too Shabby
• Advantages
• Disadvantages
1. Natural Feed
2. Extensive/low labor
3. Natural Waste
Remediation
4. Dilution
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Weather
Disease
Predation
Dessication
Space hog
Q
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Questions
Sources
• http://www.fao.org/DOCREP/005/Y2257E/y2257e06.h
tm
• http://www.fishwatch.gov/farmed_seafood/outside_the
_us.htm
• http://www.whoi.edu/page.do?pid=80696&i=6627
• http://www.tpwd.state.tx.us/huntwild/wild/species/sc
allop/
• http://www.marinespecies.org/aphia.php?p=taxdetails
&id=140687
• http://www.fao.org/docrep/007/y5720e/y5720e07.ht
m
• http://www.21food.com/products/ezo-scallop(halfshell)-354860.html
• http://www.fao.org/corp/google_results/en/
• http://www.fao.org/docrep/field/003/AB714E/AB714
E01.htm
• http://www.fao.org/fileadmin/user_upload/fisheries/d
ocs/Peru_-_28_april.doc
• http://www.sustainablesushi.net/the-fish/hotate/
• http://www.alibaba.com
• http://www.agriculturesource.com
• http://www.aquaculture.ca/files/species-scallops.php
• http://www.yslme.org/doc.2rmc/cd/Tuesday%20pm/B
ao%20-%20Aquaculture%20and%20breeding%20of%
20scollop-09616YLME.pdf
• http://www.worldfish.org/Gcl/gci_assets_moz
/Fact%20Card%20-%20Aquaculture.pdf
• http://shellfish.fas.ufl.edu/PDFs?Publications?
Aquaculture%20and%20Marketing%20of%20t
he%20FL%20Bay%20Scallop_Tp106.pdf
• http://www.dfo-mpo.gc.ca/aquaculture/
shellfish-mollusque/scallop-pectoncleeng.htm
Pictures
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http://www.wikipedia123.com/Wikipedia-52006-Patinopecten-yessoensis.html
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http://www.whoi.edu/page.do?pid=80696&i=6627 (life cycle pic)
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http://www.statesymbolsusa.org/New_York/shell_bayscallop.html
http://www.seriouseats.com/recipes/2009/09/harissa-fried-scallops-recipe-moroccan.html
http://blog.americanfeast.com/foodies/
http://steamykitchen.com/202-scallop-salad-with-sweet-vanilla-chili-dressing.html
http://farm3.static.flickr.com/2784/4421605447_c15eb06e26.jpg
http://www.layoutsparks.com/1/173699/emo-love-6-t5-1.html
http://weinterrupt.com/2010/10/british-fisherman-gets-up-close-and-personal-with-a-croc-eatingfish/
http://thumbs.dreamstime.com/thumblarge_373/1236693234y2q7Qx.jpg
http://www.cakelife.com/images/uploads/seagrass_320x480.jpg
http://www.tootoo.com/buy-frozen_scallop_adductor/
http://www.coastal.ca.gov/publiced/photos/2009/2-scallopeyes-Bradford.jpg
http://www.fao.org/docrep/field/003/AB714E/AB714E01.htm
http://scienceworld-frontiers.blogspot.com/2012/04/ocean-temperatures-have-been-rising-for.html