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Description:
Title:
Movement and retention of derelict fishing nets in Northwestern Hawaiian Island reefs
Author(s):
McCoy, Kaylyn S.
Huntington, Brittany
Kindinger, Tye L.
Morioka, James
O'Brien, Kevin
Dates of Publication:
2022
Abstract:
Derelict fishing nets pose hazards to marine systems as they travel through the ocean or become ensnared on coral reefs. Understanding of the movement of nets within shallow atolls can help to optimize operations to protect these shallow reefs. In 2018, six derelict fishing nets at Manawai (Pearl and Hermes Reef) in the Northwestern Hawaiian Islands were tagged with satellite-transmitting buoys and tracked for three years. This study reveals that nets that enter the atoll from the northeast travel southwest towards the center of the atoll, and nets in the center can remain ensnared on the same reef for at least three years. This study shows that satellite buoys are a successful approach to tracking derelict net movement, and can inform future debris removal missions.
Keywords:
Coral reefs and islands
Marine debris
Remote sensing
Place Keywords:
Papahānaumokuākea Marine National Monument (Hawaii)
Local Corporate Name:
NMFS (National Marine Fisheries Service)
PIFSC (Pacific Islands Fisheries Science Center)
OHC (Office of Habitat Conservation)
CIMAR (Cooperative Institute for Marine and Atmospheric Research)
NOS (National Ocean Service)
ORR (Office of Response and Restoration)
CoRIS (Coral Reef Information System)
Format:
PDF
Type of Resource:
Journal Article
Note:
Derelict fishing nets pose hazards to marine systems as they travel through the ocean or become ensnared on coral reefs. Understanding of the movement of nets within shallow atolls can help to optimize operations to protect these shallow reefs. In 2018, six derelict fishing nets at Manawai (Pearl and Hermes Reef) in the Northwestern Hawaiian Islands were tagged with satellite-transmitting buoys and tracked for three years. This study reveals that nets that enter the atoll from the northeast travel southwest towards the center of the atoll, and nets in the center can remain ensnared on the same reef for at least three years. This study shows that satellite buoys are a successful approach to tracking derelict net movement, and can inform future debris removal missions.
URL:
DOI:
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