SeaweedAquacultureBraelan and Logan Barnett

Seaweed Aquaculture

By Braelan and Logan Barnett

Photo: http://www.seaweed.ie/aquaculture/kelp_china.php

Image: http://12.000.scripts.mit.edu/mission2017/

Color represents withdrawals/ total flow

In October-December, kelp reproductive tissue is mature and can be induced to release spores. The spores are released into a beaker and then allowed to settle on twine. They are grown out in a nursery for four weeks at which point they are taken to a field site.Photos: http://www.bim.ie/our-publications/aquaculture/Process: http://static.squarespace.com/static/52f23e95e4b0a96c7b53ad7c/t/52f78b0de4b0374e6a0a4da8/1391954701750/OceanApproved_KelpManualLowRez.pdf

https://en.wikipedia.org/wiki/World_human_populationhttp://static.squarespace.com/static/52f23e95e4b0a96c7b53ad7c/t/52f78b0de4b0374e6a0a4da8/1391954701750/OceanApproved_KelpManualLowRez.pdf

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Fao fisheries report: http://www.fao.org/docrep/016/i2727e/i2727e.pdf

Growth of AquacultureY axis in million tonnes.Aquaculture, and of note, aquatic plant aquaculture has grown significantly over the past 25 years. About 10 million tonnes of kelp are grown annually, mostly in China. Projects for cultivating kelp have started on the East Coast of the US, Ireland and Chile. Wild giant kelp has a long history of harvest in California, mostly by Kelco for gel products.Graph: http://www.thefishsite.com/articles/868/cultured-aquatic-species-japanese-kelp

Kelp Crop Advantages

Requires no fresh water for production

Nutritious food

Provides ecosystem services (10t C02/hectare)

Species native to Puget Sound

Well described cultivation

Ecosystem services citation: http://icesjms.oxfordjournals.org/content/early/2013/01/11/icesjms.fss206.full.pdf+htmlCultivation manuals: http://static.squarespace.com/static/52f23e95e4b0a96c7b53ad7c/t/52f78b0de4b0374e6a0a4da8/1391954701750/OceanApproved_KelpManualLowRez.pdf

http://www.bim.ie/our-publications/aquaculture/

Product

The good: This food is very low inCholesterol. It is also a good source ofDietary Fiber, Vitamin C, Pantothenic Acid, Zinc and Copper, and a very good Source of Vitamin K, Riboflavin, Folate,Calcium, Iron, Magnesium and Manganese

The bad: This food is very high in Sodium.

Nutritional profile: http://nutritiondata.self.com/facts/vegetables-and-vegetable-products/2617/2 (laminaria saccharina)

Other uses

Fodder (beef, sheep, fish?)

C02, nitrogen and phosphate sequestration

Gels

Pharmaceuticals

Photoe: http://www.pugetsoundsealife.com/puget_sound_sea_life/Sugar_Kelp.html

Culture tanks

The tanks used to seed the kelp with light banks on the side and twine spools in the water.Pg 44, http://static.squarespace.com/static/52f23e95e4b0a96c7b53ad7c/t/52f78b0de4b0374e6a0a4da8/1391954701750/OceanApproved_KelpManualLowRez.pdf

Growth of Kelp on Twine in Nursery

pg 49 http://static.squarespace.com/static/52f23e95e4b0a96c7b53ad7c/t/52f78b0de4b0374e6a0a4da8/1391954701750/OceanApproved_KelpManualLowRez.pdfBIM pg New Hampshire sea grant //seagrant.unh.edu/news/growingkelp-unhpier

Kelp line system

Model of buoy system used to suspend kelp lines.http://www.bim.ie/our-publications/aquaculture/

Kelp buoys (left) and Mature Kelp ready for harvest (right)

BIMhttp://www.bim.ie/our-publications/aquaculture/http://www.seaweed.ie/aquaculture/kelp_china.php

3/25/16

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