Giant Green Anemone

Giant Green Anemone
Name	Giant Green Anemone
Regnum	Animalia
Phylum	Cnidaria
Classis	Anthozoa
Ordo	Actiniaria
Familia	Actiniidae
Genus	Anthopleura
Species	A. xanthogrammica

Giant Green Anemone The Giant Green Anemone is a conspicuous intertidal cnidarian notable for its large oral disc and symbiotic coloration. It is widely cited in marine field guides and has been the subject of ecological studies by institutions such as Smithsonian Institution, Scripps Institution of Oceanography, Monterey Bay Aquarium Research Institute, Woods Hole Oceanographic Institution and University of California, Santa Cruz. Field researchers from National Oceanic and Atmospheric Administration, British Antarctic Survey, Australian Museum, Royal Ontario Museum, and California Academy of Sciences have contributed to surveys documenting its ecology.

Taxonomy and Nomenclature

Taxonomic treatment of the Giant Green Anemone appears in catalogs compiled by Carl Linnaeus-era taxonomists and more recent revisions from teams at Natural History Museum, London, Museum of Comparative Zoology, Smithsonian Institution and American Museum of Natural History. Nomenclatural decisions referenced in monographs by researchers affiliated with International Commission on Zoological Nomenclature, Royal Society, British Museum, European Commission DG Environment and specialists from University of Washington and Oregon State University clarify its placement in the family Actiniidae and genus Anthozoa-related groupings. Historical synonyms are noted in registers maintained by Global Biodiversity Information Facility and World Register of Marine Species.

Description

The species is described in field manuals used by staff at Monterey Bay Aquarium, Seattle Aquarium, Vancouver Aquarium, Birch Aquarium at Scripps and National Aquarium (Baltimore). Morphological characterizations produced in laboratory studies at University of British Columbia, University of California, Berkeley, University of Victoria, University of Hawaii and University of Oregon detail tentacle counts, disc diameter, column texture and pedal disc measurements. Comparative anatomy papers in journals associated with Royal Society Publishing, Elsevier, Wiley-Blackwell, Springer Nature and PLOS contrast it with related taxa cataloged by Zoological Society of London, Field Museum and American Fisheries Society.

Distribution and Habitat

Biogeographic records compiled by NOAA Fisheries, Fisheries and Oceans Canada, California Department of Fish and Wildlife, National Park Service and Bureau of Ocean Energy Management map its occurrence along rocky intertidal zones and subtidal reefs documented in surveys from Point Reyes National Seashore, Olympic National Park, Channel Islands National Park, Gulf of Alaska and Puget Sound. Habitat descriptions published by researchers at University of Alaska Fairbanks, University of California, Santa Barbara, Oregon State University Sea Grant and Washington Sea Grant characterize its preference for sheltered boulder fields, tidepools and shaded crevices influenced by currents from California Current, North Pacific Gyre, El Niño–Southern Oscillation events and regional upwelling studied by Scripps Institution of Oceanography.

Biology and Ecology

Ecological interactions have been documented in collaborative projects involving Monterey Bay Aquarium Research Institute, NOAA Marine Sanctuaries, Point Reyes Bird Observatory, The Nature Conservancy and universities such as Stanford University and Duke University. Studies on feeding, predator–prey relationships and competition reference fieldwork coordinated with U.S. Fish and Wildlife Service, Canadian Wildlife Service and researchers at University of Washington Friday Harbor Laboratories. Symbioses and physiological adaptations are compared in papers from Max Planck Society, European Marine Biological Resource Centre, Marine Biological Laboratory (Woods Hole), Smithsonian Tropical Research Institute and Kew Gardens-affiliated projects.

Reproduction and Life Cycle

Life-history research conducted by scientists at Monterey Bay Aquarium Research Institute, Woods Hole Oceanographic Institution, Scripps Institution of Oceanography, University of Washington and Hakai Institute describes gametogenesis, spawning, larval development and settlement influenced by seasonal cycles studied by NOAA, National Science Foundation-funded teams and long-term monitoring efforts led by Long Term Ecological Research Network. Laboratory experiments reported in journals from Elsevier, Springer Nature and Oxford University Press evaluate asexual propagation, fission, pedal laceration and survivorship under conditions simulated by researchers at MBARI, Friday Harbor Laboratories and VIMS (Virginia Institute of Marine Science).

Conservation and Human Interactions

Conservation status assessments reference inventories by IUCN, Convention on Biological Diversity, UN Environment Programme and regional agencies such as California Department of Fish and Wildlife and Fisheries and Oceans Canada. Human interactions documented by staff at Monterey Bay National Marine Sanctuary, Channel Islands National Marine Sanctuary, Olympic National Park and public aquaria include citizen science programs run with iNaturalist, eBird-style community monitoring, and outreach by Audubon Society, Ocean Conservancy and Surfrider Foundation. Impacts from coastal development, pollution incidents investigated by Environmental Protection Agency, Transport Canada, Department of the Interior and climate-driven changes monitored by Intergovernmental Panel on Climate Change provide context for management actions coordinated with NOAA Fisheries and local conservation NGOs.

Category:Actiniidae