Problem-Invasive Seaweed ( Smothering Seaweed and Gorilla Ogo )• Invasive algae (Smothering Seaweed (Kappaphycus / Eucheuma), and Gorilla Ogo (Gracilaria salicornia) has been growing in Kaneohe Bay for more than 30 years. Many reefs throughout the bay are highly affected by their spread.
Possible Solution 1- Super Sucker• Good tool to collect invasive algae from Kaneohe Bay.• Collects about 2-8 thousand pounds of limu per day.• Given to farmers for composting.• However, in 5-6 months algae returns.
Possible Solution 2-Sea Urchins • Sea urchins will eat invasive seaweed (Smothering Seaweed and Gorilla Ogo ) and help control its growth in the ocean.
Method 1-Growing Sea UrchinsFresh Water + Salt Water Powder Water: - Mixture of freshwater and instant ocean water mix. Sea urchin food: - Seaweed - Farm feed - Nori Results: - Many of the sea urchins in our tanks did not survive, about 15-20 sea urchins were released in December 2012.
Method 2- Growing Sea Urchins Using Salt Water Water: - Salt water was obtained from a faucet in Sand Island. Sea Urchin Food: - Only limu or ogo Results: - Higher percentage of survival rate for our sea urchin.