Rapid expansion of the invasive‐like red macroalga, Chondria tumulosa (Rhodophyta), on the coral reefs of the Papahānaumokuākea Marine National Monument

Lopes, Keolohilani H.; Miura, Tomoaki; Hauk, Brian; Kosaki, Randall; Leonard, Jason; Hunter, Cynthia

doi:10.1111/jpy.13369

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Rapid expansion of the invasive‐like red macroalga, Chondria tumulosa (Rhodophyta), on the coral reefs of the Papahānaumokuākea Marine National Monument

2023
By Lopes, Keolohilani H. ; Miura, Tomoaki ; Hauk, Brian ; ...
Source: Journal of Phycology, 59(5), 1107-1111

[PDF-3.45 MB]

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Details:

Journal Title:

Journal of Phycology
Personal Author:

Lopes, Keolohilani H. ; Miura, Tomoaki ; Hauk, Brian ; Kosaki, Randall ; Leonard, Jason ; ... More +

Lopes, Keolohilani H. ; Miura, Tomoaki ; Hauk, Brian ; Kosaki, Randall ; Leonard, Jason ; Hunter, Cynthia Less -
NOAA Program & Office:

NOS (National Ocean Service) ; CoRIS (Coral Reef Information System) ; CIMAR (Cooperative Institute for Marine and Atmospheric Research) ; ONMS (Office of National Marine Sanctuaries)

NOS (National Ocean Service) ; CoRIS (Coral Reef Information System) ; CIMAR (Cooperative Institute for Marine and Atmospheric Research) ; ONMS (Office of National Marine Sanctuaries) Less -
Description:

A cryptogenic, invasive‐like red macroalga, Chondria tumulosa, was first observed in 2016 forming thick mats on the forereef of Manawai Atoll within Papahānaumokuākea Marine National Monument. Subsequent expeditions revealed an increased abundance of this alga. In 2021, unattached C. tumulosa was observed forming a network of dark, meandering accumulations throughout the atoll's inner lagoon. High‐resolution satellite imagery revealed that these accumulations became visible in 2015 (length: ~0.74 km; area: ~0.88 km2) and increased 56‐fold in length and 115‐fold in area by 2021 (length: 41.32 km; area: 101.34 km2). An exponential expansion rate of ~16.02 km · y−1 (length), ~44.75 km2 · y−1 (area). This study presents the comprehensive temporal and spatial expansion of C. tumulosa accumulations for Manawai Atoll since its discovery, providing ecologist and resource managers with a proxy to gauge the overall abundance trend of this invasive‐like alga.
Keywords:

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Aquatic Science Plant Science
Source:

Journal of Phycology, 59(5), 1107-1111
DOI:

https://doi.org/10.1111/jpy.13369
ISSN:

0022-3646;1529-8817;
Publisher:

Wiley
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by/4.0/
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CC BY
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Library
Main Document Checksum:

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urn:sha256:24b13eccd470ae80e80dadfa3cf2a39f3ae46014c39d6b26e680eaa7a3791215
Download URL:

https://repository.library.noaa.gov/view/noaa/58241/noaa_58241_DS1.pdf
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