Sea cucumbers, commonly called "black worms," have given fresh life to Hawaii's fish farms. The Pacific American Foundation, Kauai Marine Farms, and NOAA (National Oceanic and Atmospheric Administration) are cooperating to produce three kinds of sea cucumber in anticipation that they will improve the local environment and generate essential export items.
The project will take place at Nomilo Fishpond, nestled on Kauai, Hawaii's southwest shore. The pond, lying in an extinct volcanic crater, is regarded as one of the state's oldest but most productive.
Hawaii is host to 488 of all these loko i'a (fishponds); historical aquaculture systems were established hundreds, if not millennia, of years ago to ensure successful fish farming. Eventually, following the western influence of Hawaii in the early twenty-first century, many loko i'a began to deteriorate, according to the statement from NOAA.
First Aquaculture of Sea Cucumber
This initiative, the state's first of its type in the state, is exploring the production of three native Hawaiian sea cucumber vegetation: Surf redfish (Actinopyga varians), White teatfish (Holothuria whitmaei), and Namako (Stichopus horrens)
The project's first step entails hatchery reproduction in tanks. David Anderson, the sea farm production manager, said, "That's where we're growing juveniles up to 5 grams, which is an inch or two long." "From there, we're running growth trials and studies in two fishponds and one commercial shrimp farm." These growing efforts will tell Anderson, fishpond administrators, and other aquaculturists how efficiently the sea cucumbers flourish under various scenarios and conditions.
The latter stage of the project involves collaboration with Hawaii Sea Grant. They'll organize sessions together and show fishpond aquaculturists how to raise loli. They would also provide a free loli aquaculture production guideline.
Since 1992, after Hurricane Iniki obstructed the seawater pathways and hindered the flow of nutrients between the pond and the sea, Nomilo loko i'a has been neglected. Furthermore, because of recent recovery efforts, Nomilo today has a thriving native species ecosystem. But, there's still more work to be done.
This sea cucumber, called namako in Japanese cuisine, could help revitalize and provide a revenue source for Hawaiian fishponds.
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Sea Cucumbers in Nature
"We believe that this project will help address some of the difficulties I have, such as water quality, live food supplies, and revenue to fund rehabilitation and management," explained Tori Spence, an NOAA aquaculture specialist.
Sea cucumbers are an aquatic invertebrate prevalent all over the world. Its bodies resemble mushy cucumbers, containing short, tubular legs that can expand up to six feet in length. It is recognized as a gourmet in many cultures, specifically in East and Southeast Asia, as stated in a report from Newsweek.
Asexual or sexual reproduction is conceivable in sea cucumbers. Sexual reproduction is more popular but is not a particularly intimate process. The creatures release two very different eggs and sperm into the waters, and fertilization occurs when they meet up.
Therefore for the reproductive approach to be successful, a sea cucumber population must have a substantial number of individuals. However, massive herds of these ancient creatures can be found in various regions of the deep ocean, grazing on the microscopic riches of aquatic habitats, based on a post from National Geographic.
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