The Hawaii Coral Reef Initiative

August 2011 Trimester Presentations

  • Detection of invasive algae and nutrients in West Hawaii
    Meghan Dailer, PI
    HCRI has funded Meghan Dailer to investigate the level of interisland alien species transport facilitated by boating traffic, identify areas and potential sources of high nutrient loading, survey standing stocks of invasive algae, identify areas with high levels of dispersing alien algal spores, and assess the effectiveness of herbivorous fish management areas on the abundance of alien invasive and nuisance algal species. This project will analyze the risk posed by invasive algae and will attempt to address that risk through policy recommendations and the development of a public outreach campaign.
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  • Impact of sediment on the coral reef ecosystem of Pelekane Bay, Hawaii
    Paul Jokiel, PI
    Pelekane Bay coral reef communities have been heavily impacted by the construction of the adjacent Kawaihae Harbor and changes in land use on the adjacent watershed. Remediation efforts are underway on land, and there is a need to evaluate the impact of these actions on the adjacent coral ecosystem. HCRI has funded an interdisciplinary team from UH and USGS to evaluate these ecosystems.
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  • Experimental Removal of Roi (Cephalopholis argus)
    Eric Conklin, PI
    There is growing public sentiment that the invasive fish, Cephalopholis argus is causing declines in desirable native fishes through predation on small fishes of many species. In response to this, fishers have begun to organize “roi roundups” where roi are selectively speared.
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  • Restoration within He‘eia Ahupua‘a: Effects on species diversity and water quality
    Florence Thomas, PI
    Both wetlands and coral reefs have been severely degraded by invasive species. A community grassroots effort has begun to restore the Heeia ahupuaa by shifting vegetation and fish assemblages away from invasive dominated systems. HCRI has funded this project to support community efforts by investigating how the functions of the wetlands and associated ponds change as the ecosystem transitions from an invasive species dominated to a restored habitat.
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  • Estimating the magnitude of the export of dissolved inorganic and organic nitrogen from Nu‘upia ponds to Kane‘ohe Bay
    John Stimson, PI
    The southern basin of Kaneohe Bay has an extensive reef system which has become more robust since the diversion of sewage from this relatively closed water body in 1977. The basin has two main sources of dissolved inorganic and organic nitrogen: streams and the tidal outflow from the Nuupia ponds (~100 hectares). HCRI has funded this project to measure the pond’s DIN and DON concentrations, measure the rate of export of these nutrients from the ponds, and the direction of movement of the discharged pond waters once they enter the south basin of the bay.
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  • Herbivore enhancement as a tool for reef restoration
    Jennifer Smith, PI
    In the summer of 2009, the state of Hawaii declared Kahekili reef an Herbivore Fisheries Management Area (KHFMA) where all take of herbivorous fish and urchins is now prohibited. HCRI has funded this project to identify if herbivores will be able to perform the ecological services that this management strategy was set up to achieve.
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