Skip to main content Scroll Top

Coastal ecosystems

A collage of images shows people and places around the Waiʻanae moku from the coast to the mountains, with the Ka Pili Kai title and issue title (Moku ʻo Waiʻanae) across the middle of the collage

Ka Pili Kai Kau 2026

The 22-mile stretch of coastline on the west coast of Oʻahu, beginning at Piliokahe Ridge and ending at Kaʻena Point, marks the boundary defined as the Waiʻanae moku. If you travel too fast on Farrington Highway, you might miss the ...
Screenshot of the Act 217 Sewer Expansion Overlay Tool

Act 217 Sewer Expansion Overlay

Act 217 Sewer Expansion Overlay The Act 217 Sewer Expansion Overlay identifies 103 Potential Project Areas across Hawaiʻi where connecting cesspools to a centralized sewer system may be technically and economically feasible. While the Hawaiʻi Cesspool Hazard Assessment & Prioritization ...
A beautiful rocky cove, with a variety of tall trees and shrubs lining the shore, displays an unnatural bright green tinting to the waters

Characterization and quantification of contaminants of emerging concern in nearshore waters of three coastal communities with known onsite sewage disposal systems’ contamination

 Research Projects 2026-2028 PRINCIPAL INVESTIGATOR: Tracy Wiegner Co-INVESTIGATORS: Steven Colbert, Chester Dabalos, Paul Edmiston Research Track: Contaminants of Emerging Concern Contaminants of emerging concern (CECs) are a vast and diverse group of chemicals that are ubiquitous in the environment because ...
A pile of algae-covered rocks sit in clear shallow waters, with black-striped yellow fish swimming around them

Employing traditional practices to protect coastal infrastructure and enhance nearshore fisheries in Hawaiʻi

 Research Projects 2026-2028 PRINCIPAL INVESTIGATOR: Robert Toonen Graduate fellow: ʻAʻaliʻi Kelling Research Track: Island Sustainability and Resilience Coral reef ecosystems globally, including in Hawaiʻi, are facing profound degradation from multiple, interacting stressors, resulting in severe losses of coral cover, fish ...
A dense accumulation of small, yellow, wagon-wheel-like creatures float just beneath the surface of shallow waters

Characterizing the ecological impacts, environmental drivers, and physiological tolerance of invasive upside-down jellyfish (Cassiopea spp.) in Heʻeia fishpond

 Research Projects 2026-2028 PRINCIPAL INVESTIGATOR: Aimee Sato Co-INVESTIGATOR: Yoshimi Rii Graduate fellow: Jasmine Reighard Research Track: Aquaculture The invasive upside-down jellyfish (Cassiopea spp.) poses a major threat to the restoration and productivity of loko iʻa (traditional Hawaiian fishponds), necessitating extensive ...
A serene pond stretches between grass and tree-lined shorelines under a blue sky with clouds

A water quality monitoring framework for traditional Hawaiian fishponds to advance nature-based solutions in aquaculture production

 Research Projects 2026-2028 PRINCIPAL INVESTIGATOR: Craig Nelson Co-INVESTIGATORS: Ann Nyambega, Kirsten Oleson Graduate fellow: Kacie Kajihara Research Track: Island Sustainability and Resilience Nature-based solutions (NbS) offer adaptive, cost-effective strategies by leveraging natural processes, but their foundational roots lie in the ...
Small, square plates, black- and white-rimmed, lie scattered across the rough, exposed surface of a stretch of rocky nearshore, with sparkling blue waters beyond

The impacts of increasing temperatures and herbivore loss on Hawaiian intertidal community structure and ecosystem function

 Research Projects 2026-2028 PRINCIPAL INVESTIGATOR: Jamie McDevitt-Irwin Co-INVESTIGATORS: Nyssa Silbiger, Joanna Philippoff, Kim Kanoeʻulalani Morishige Graduate fellow: Madigan Boborci Research Track: Island Sustainability and Resilience The intertidal zone in Hawaiʻi, a vital ecosystem for endemic species and sustenance fisheries like ...
Manipulating structural complexity to bolster restoration of Hawaiian coral reefs

Manipulating structural complexity to bolster restoration of Hawaiian coral reefs

 Research Projects 2026-2028 PRINCIPAL INVESTIGATOR: Joshua Madin Graduate fellow: Jon G. Ehrenberg Research Track: Island Sustainability and Resilience Coral reef ecosystems, the foundation of tropical marine life, are severely impacted by marine heatwaves, sea-level rise, and pollution, accelerating their degradation ...
Screenshot-Hawai‘i Cesspool Prioritization Tool

HCPT – header draft

Hawai‘i Cesspool Prioritization Tool  Overview The Hawai‘i Cesspool Prioritization Tool (HCPT) is a map-based tool that displays the prioritization level for each of Hawai‘i's 83,000+ cesspools. Per Act 125 Session Laws of Hawai‘i (2017), all cesspool owners are required to ...
Ola Waikīkī Green Stormwater Infrastructure 2025

Ola Waikīkī Green Stormwater Infrastructure 2025

Ola Waikīkī Ola In Hawaiian, means well-being, living, thriving, and healthy—but it also connotes salvation, healing, and survival. This project is focused on addressing water quality issues in the Ala Wai Canal, a chronically polluted man-made waterway in the lower ...