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Data on invasive corallimorphs Palmyra

Metadata Updated: July 6, 2024

Invasive marine species are well documented but options to manage them are limited. At Palmyra Atoll National Wildlife Refuge (Central North Pacific), native invasive corallimorpharians, Rhodactis howesii, have smothered live native corals since 2007. Laboratory and field trials were conducted evaluating two control methods to remove R. howesii overgrowing the benthos at Palmyra Atoll (Palmyra): 1) toothpaste mixed with chlorine, citric acid, or sodium hydroxide (NaOH), and 2) hot water. Paste mixed with NaOH had the most efficacious kill in mesocosm trials and resulted in >90% kill over a 98 m2 area three days after treatment. Hot water at 82C was most effective in mesocosms; in the field hot water was less effective than paste but still resulted in a kill of ca. 75% over 100 m2 three days after treatment. Costs of paste and heat (excluding capital equipment and costs of regulatory approval should this method be deployed large scale) were $70/m2 and $59/m2 respectively. Invasive R. howesii currently occupy ca 5,800,000 m2 of reef at Palmyra with ca. 276,000 m2 comprising heavily infested areas. Several potential management strategies are discussed based on costs of treatment, area covered, and the biology of the invasion. The methods described here expand the set of tools available to manage invasive species in complex marine habitats.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Identifier USGS:62c85780d34eeb1417bb18bb
Data Last Modified 20220907
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 275e1ecc-1e66-47c7-b3c8-b4935d4e9adf
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -162.3185,5.6664,-161.8375,6.0964
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash d1d8d9fa335b851abc57de4ce74695f057aaa8ff5e95d8b4bb27c2ff7a12830b
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -162.3185, 5.6664, -162.3185, 6.0964, -161.8375, 6.0964, -161.8375, 5.6664, -162.3185, 5.6664}

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