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    Observations of organic falls from the abyssal Clarion-Clipperton Zone in the tropical eastern Pacific Ocean

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    CCZ organic falls 2_with figur ...
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    Authors
    Amon, Diva cc
    Hilario, A
    Arbizu, PM
    Smith, CR
    Issue date
    2016-10-04
    Submitted date
    2020-09-11
    Subject Terms
    whale fall
    wood fall
    scavenger
    Clarion-Clipperton Zone
    deep-sea mining
    Xylophagaidae
    
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    Abstract
    Organic falls can form nutrient-rich, ephemeral hotspots of productivity and biodiversity at the deep-sea floor, especially in food-poor abyssal plains. We report here the first wood falls and second carcass fall recorded from the Clarion-Clipperton Zone in the tropical eastern Pacific Ocean, an area that could be mined for polymetallic nodules in the future. A small cetacean fall in the mobile-scavenger stage likely recently arrived on the seafloor was observed, whereas most of the wood falls were highly degraded. There were multiple species in attendance at the wood falls including organic-fall specialists such as Xylophagaidae molluscs. Many of the taxa attending the carcass fall were known mobile scavengers that regularly attend bait parcels in the Pacific Ocean. These results further confirm that wood falls can occur at large distances (>1450 km) from major land masses, providing an adequate supply of wood to the abyssal seafloor for colonization by wood-boring molluscs and associated fauna. Organic falls may be regionally abundant and are likely to influence species and habitat diversity in the abyssal areas of the Clarion-Clipperton Zone.
    Citation
    Amon, D.J., Hilario, A., Arbizu, P.M. et al. Observations of organic falls from the abyssal Clarion-Clipperton Zone in the tropical eastern Pacific Ocean. Mar Biodiv 47, 311–321 (2017)
    Publisher
    Springer Berlin Heidelberg
    Journal
    Marine Biodiversity
    URI
    http://hdl.handle.net/10141/622850
    DOI
    https://doi.org/10.1007/s12526-016-0572-4
    Type
    Journal Article
    Item Description
    The attached is the author's accepted version of the paper. If you wish the cite from this paper your are advised to consult the published pdf: https://doi.org/10.1007/s12526-016-0572-4
    NHM Repository
    ISSN
    1867-1616
    EISSN
    1867-1624
    ae974a485f413a2113503eed53cd6c53
    https://doi.org/10.1007/s12526-016-0572-4
    Scopus Count
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    Life sciences

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