Oregon Seaweed Farming Revolution: A Unique Dulse Seaweed Aquaculture Farm Tour

[@EricTamigneaux]

Great job ! How do you manage the seasonal spore production and frond decay ?

[@ThePelagicLumberjack]

Hello! Nate from the video here. Thanks for the question! Studies at Oregon State have found sexual reproduction of dulse occurs primarily when conditions are unfavorable. We can mitigate Spore production by maintaining favorable temperature, salinity, and nutrient conditions in our system. Frond decay has been found to increase when the algae becomes too dense for light to penetrate the water column sufficently. We primarily control decay by selecting the tanks with highest density for harvest first and drying any excess crop when density reaches a level where frond decay is likely. Dulse is also a highly sought-after fertilizer and can be used in compost when frond quality is not fit for human or animal consumption!

[@ThisIsAquaculture]

Good question!, I’ve asked Nate Jones to respond to your question. Thanks for watching our video.

[@ThisIsAquaculture]

That makes sense about spore formation, just like in vascular plants when they start getting stressed they go quickly to fruiting or seed to make sure they can spread their genetics before dying. Plenty of invertebrates will force spawn when stressed for that matter.

[@johnnyabalone]

Very Cool👍 farmed abalones eat it too😋

[@ThisIsAquaculture]

Have you ever been to the big island abalone farm in Hawaii? Also you can see this in my cultured abalone farm tour video. kzbin.info/www/bejne/qXy0i4SknLtpiNksi=i0ivfk8nTZfAcaX3

[@johnnyabalone]

Yes I've taken the tour, they have an impressive Dulce culture system@@ThisIsAquaculture

[@ozzypunk1]

How much seaweed did you eat Dr Jackson Gross ? Hope all is well, haven’t seen a video from you in a while.

[@ThisIsAquaculture]

I’ve been so busy!!! Hopefully, I will be back at it later this month. I still have so much content to get out. It’s just about bandwidth.

[@ThisIsAquaculture]

Oh yeah….quite a bit!!!

[@altarush]

Where can you get seaweed to grow it ?

[@allouttabubblegum1984]

cool!

[@zhuliu]

I’m an independent grower doing similar aquaculture production of green freshwater filamentous algae, producing clean dried powdered Spirogyra and Cladophora and Oedogonium. My one-man low-input method yields about 1 lb powder per 1 hour of labor. The field appears to be wide open; problem is finding anyone else in the market/field to consult with.

[@dragonsbreathraku8424]

Freshwater? Did you read the book Slime? I'm interested in a freshwater algae as the main protein for fish...

[@ThisIsAquaculture]

That’s interesting. Lots of different markets for freshwater algae.

[@zhuliu]

@@ThisIsAquaculture I'd love to find a market. Any leads on who's buying?

[@TeaTimeSweetness]

@@zhuliu you definitely have to try market your product to vegan community. I am vegetarian looking for vegan fish sauce, and which then led me to find different types of seaweed to make that sea umami. I only find out now that it contains proteins too which is a super plus for vegans!

[@jarethgar]

This is really cool!

[@altarush]

How much and spores are needed to grow seaweed?

[@ThisIsAquaculture]

This seaweed can be grown through vegetative propagation!!

[@benjaminseaweed]

Thank you very much for this very interesting video. Few videos are so concrete. Nate (@ThePelagicLumberjack), you mentioned the white color of the tank. We can think that this has a role in photosynthesis and therefore growth. Is that the case? And what is the level of impact? And if you have the name of your tank supplier, I'm interested. Looking forward to discussing. Many Thanks Benjamin (from the Brittany region in France)

[@ThisIsAquaculture]

I’ll get you some of those details. The problem with the white tank in my opinion is that you get a ton of unwanted algae grown in the walls which takes up nutrients and reduces light penetration which was one of the reason to go white in the first place. The other reason was to reduce heat from the sun.