Impact of an alien octocoral, Carijoa riisei, on black corals in Hawaii

  title={Impact of an alien octocoral, Carijoa riisei, on black corals in Hawaii},
  author={Samuel E. Kahng and Richard W. Grigg},
  journal={Coral Reefs},
In 2001 Carijoa riisei, an octocoral native to the tropical Western Atlantic, was discovered overgrowing black corals in the Au’au Channel in Hawaii. In this paper data from a 2001 survey are reanalyzed and combined with new data from 2003 and 2004 to assess the ecological impact in greater detail. C. riisei differentially affected reproductively mature black coral colonies with maximum impact between 80 and 105 m. The pattern of C. riisei overgrowth on black corals and C. riisei on the… 

The invasive snowflake coral (Carijoa riisei) in the Tropical Eastern Pacific, Colombia

The distribution and inter-specific aggression by C. riisei is surveyed for the first time in both coastal and oceanic areas colonized in the Colombian TEP (Malpelo, Gorgona and Cabo Corrientes), including preliminary multiyear surveys during 2007-2013.

An Invasion of Snowflake Coral Carijoa riisei (Duchassaing and Michelotti 1860) in Indian Seas: Threats to Coral Reef Ecosystem

Carijoa riisei is a shallow water fast growing zooxanthellate octocoral, native to the tropical Atlantic and Caribbean Sea. Since its first invasion discovered from Hawaii Islands in 1972, the

Resolving natural ranges and marine invasions in a globally distributed octocoral (genus Carijoa)

The first published report of the snowflake coral in Hawai'i comes from Pearl Harbor in 1972; subsequent identification as the Caribbean octocoral Carijoa riisei led to the general conclusion that it

First detection of the alien snowflake coral Carijoa riisei (Duchassaing and Michelotti, 1860) (Cnidaria: Alcyonacea) in the port of Manzanillo in the Mexican Pacific

One colony of the snowflake coral Carijoa riisei (Alcyonacea: Clavulariidae) was found in June 2016, and three more in January 2017, during dives in the port of Manzanillo, Colima, Mexico (Tropical

New report of nudibranch predators of the invasive octocoral Carijoa riisei in the Main Hawaiian Islands

In 1972, an azooxanthellate octocoral never before seen in Hawaii (identified by F. M. Bayer as Telesto = Carijoa riisei) was discovered within the fouling community in Pearl Harbor. C. riisei was

Assessing population changes of historically overexploited black corals (Order: Antipatharia) in Cozumel, Mexico

Comparing Cozumel populations between 1998 and 2016 for the two black coral species targeted by the jewellery industry found that densities of Plumapathes pennacea in 2016 were substantially lower than in 1998, however, the 2016 P. pennacea population has shifted to be dominated by larger colonies, suggesting disproportionate juvenile mortality or recruitment failure.

The invasive octocoral Unomia stolonifera (Alcyonacea, Xeniidae) is domina(cid:23)ng the benthos in the Southeastern Caribbean Sea.

. The Indo-Pacific octocoral Xenia sp. has been reported as a successful invasive species of the Venezuelan coral reefs (Southeastern Caribbean Sea), and the first xeniid octocoral with such invasive

Sexual reproduction of the Hawaiian black coral Antipathes griggi (Cnidaria: Antipatharia)

Investigating sexual reproductive processes within Antipathes griggi, the dominant species targeted by the fishery, indicates that ~80% meeting the state harvesting limit, and ~90% of colonies meeting the federal limit, are sexually mature and should be increased to ensure that more colonies can reproduce before being exposed to fishing mortality.

New Records of Commercially Valuable Black Corals (Cnidaria: Antipatharia) from the Northwestern Hawaiian Islands at Mesophotic Depths1

Two commercially valuable black coral species, Antipathes griggi and Myriopathes ulex, were found, representing substantial range expansions for these species and highlight the utility of deepdiving technologies in surveying the largest part of the depth range of coral reef ecosystems, which remains largely unexplored.



Invasion of a deep black coral bed by an alien species, Carijoa riisei, off Maui, Hawaii

  • R. Grigg
  • Environmental Science
    Coral Reefs
  • 2003
Out of 343 introductions of marine invertebrates to Hawaii, C. riisei is the only species to have proliferated to this level of abundance and invasive potential, and it will be important to monitor future patterns of distribution and abundance, as well as to investigate its ecology.

Harvesting Impacts and Invasion by an Alien Species Decrease Estimates of Black Coral Yield off Maui, Hawai'i

Trends suggest a need for more stringent regulations, including a larger size (height) limit, a reduction in the maximum sustained yield, and possible reassessment of the economics of the fishery.

Hawaiian Marine Bioinvasions: A Preliminary Assessment

Origin Historically the numbers of introductions have peaked at several different times: during the 1920s, probably through the effort of Charles Howard Edmondson, then recently arrived invertebrate

Present knowledge of the systematics and zoogeography of the order Gorgonacea in Hawaii

Past knowledge of the order Gorgonacea in Hawaii is based almost exclusively on the collections of the United States Fish Commission steamer A lbatross in 1902, which contain 52 species, but the faunal list in Hawaii must still be considered depauperate.

Black Coral: History of a Sustainable Fishery in Hawai'i

Results of a recent survey of the Maui black coral bed conducted in 1998 show that rates of recruitment and growth are near steady state and appear to account for the long-term stability of the fishery, however, recent technological advances and potential increases in demand could lead to increased rates of harvest.

Historical and recent introductions of non-indigenous marine species into Pearl Harbor, Oahu, Hawaiian Islands

The only species from these recent introductions that has become abundant and widespread in Hawaii is the small intertidal barnacle Chthamalus proteus Dando and Southward, 1980, which was formerly restricted to the Caribbean.

Nonindigenous Species Introductions on Coral Reefs: A Need for Information

This review summarizes the information for nonindigenous species from harbors, embayments, and coral reef surveys in the tropical Pacific and outlines procedures for studies to detect species introductions.

World atlas of coral reefs

Coral reefs are one of the most biologically diverse habitats in the world, host to an extraordinary variety of marine plants and animals. They are also one of the world's most fragile and endangered

Site Characteristics Favoring Invasions

Recent increases in intercontinental invasion rates by organisms of many taxa, brought about primarily by human activity, create both important ecological problems for the recipient lands and

Pearl Harbor Biological Survey

In addition to the basic field work, an efficient analytical procedure was developed for the processing, interpretation and display of the large amounts of data, both biological and physicochemical, obtained on environmental surveys.