Pubblicazione scientifica

Modeled Population Connectivity across the Hawaiian Archipelago

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità
produzione e cattura

RIASSUNTO

We present the first comprehensive estimate of connectivity of passive pelagic particles released from coral reef habitat throughout the Hawaiian Archipelago. Potential connectivity is calculated using a Lagrangian particle transport model coupled offline with currents generated by an oceanographic circulation model, MITgcm. The connectivity matrices show a surprising degree of self-recruitment and directional dispersal towards the northwest, from the Main Hawaiian Islands (MHI) to the northwestern Hawaiian Islands (NWHI). We identify three predicted connectivity breaks in the archipelago, that is, areas in the mid and northern part of the archipelago that have limited connections with surrounding islands and reefs. Predicted regions of limited connectivity generally match observed patterns of genetic structure reported for coral reef species in the uninhabited NWHI, but multiple genetic breaks observed in the inhabited MHI are not explained by passive dispersal. The better congruence in our modeling results based on physical transport of passive particles in the low-lying atolls of the uninhabited NWHI, but not in the anthropogenically impacted high islands of the MHI begs the question: what ultimately controls connectivity in this system?

DATA

Data di pubblicazione: 08/12/2016

AUTORI

WREN JOHANNA L K
KOBAYASHI DONALD R
JIA YANLI
TOONEN ROBERT J

ENTE DI AFFERENZA

Joint Institute for Marine and Atmospheric Research University of Hawai‘i at Mānoa Honolulu Hawai‘i United States of America
Hawaiʻi Institute of Marine Biology School of Ocean and Earth Science and Technology University of Hawaiʻi at Mānoa Kāne‘ohe Hawaiʻi United States of America
Ecosystems and Oceanography Program Pacific Islands Fisheries Science Center National Oceanographic and Atmospheric Administration Honolulu Hawai‘i United States of America
International Pacific Research Center University of Hawaiʻi at Mānoa Honolulu Hawai‘i United States of America
UNIV CALIFORNIA SANTA CRUZ US

RIVISTA

PLoS ONE, 11(12), e0167626

IMPACT FACTOR

2,870

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