Ocean Talks

with the Division of Aquatic Resources and
Waikiki Aquarium

Wednesday, September 4
3:30 – 4:30 p.m.
Juvenile fishes in Hawaii use estuaries (muliwai) as nursery grounds
by Dr. Kimberly Peyton
Some of the most isolated estuaries in the world are found in the main Hawaiian Islands. The nearest estuaries are about 2,000 miles away from Hawaii. This geographic isolation further magnifies the importance of Hawaii’s estuaries (muliwai) as critical nursery grounds for coastal species, valued for fishing and cultural practices as well as for their biological diversity. In this talk, you will learn how the DLNR Division of Aquatic Resources is researching this understudied ecosystem to improve our management practices in muliwai.

Wednesday, September 18
3:30 – 4:30 p.m.
Hawai‘i’s Limu Initiative
by Ryan Okano
Historically in Hawai‘i, limu were a consistent facet of a simplistic yet nutritious diet. In Hawai‘i’s modern multicultural context people have continued to use limu in a similar fashion to their root cultures. Granted that limu still holds a place of importance in modern Hawai‘i, many believe that it is underutilized and thus underappreciated. Therefore, the Division of Aquatic Resources would like to make a concerted effort to broaden the utilization and appreciation of limu in Hawai‘i, via educational and restoration efforts.

Tuesday, October 15
3:30 – 4:30 p.m.
Citizen Science and Aquatic Invasive Species in the State of Hawaii
by Kimberly Fuller
Citizen Science can be a powerful tool, from contributing to peer-reviewed and published articles to informing natural resource management decisions. The State of Hawaii Aquatic Invasive Species (AIS) Team has utilized community involvement for several projects discussed in this session. Invasive algae mapping along the south shore of Molokai, Japanese Tsunami Marine Debris and using iNaturalist for reporting AIS will be covered.

Wednesday, October 23
3:30 – 4:30 p.m.
Controlling the spread of the invasive Salvinia molesta in Kaua‘i streams
by Daniel Lager
In 2016, community members reported an increasing population of the invasive water fern Salvinia molesta on the Kilauea River. (This is the same plant that covered Lake Wilson on Oahu in 2003.) The DAR Aquatic Invasive Species Team has since determined island-wide stream distributions on Kaua‘i by successfully employing a new sampling method, environmental DNA (eDNA). This method detects S. molesta using filtered stream water samples which are processed at a genetics lab to determine if any S. molesta DNA is present. Visual surveys have shown that the S. molesta population is diminished during flooding caused by heavy rain events. This information can be used to target the timing of control efforts to maximize their effectiveness.

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