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Hawaiʻi Deep-set Longline Fishery Quarterly and Annual Status Report 2024

March 06, 2025

Pacific Islands Region Observer Program Hawaiʻi deep-set longline data reports of observer coverage, sea turtle, marine mammal, seabird, ESA-listed elasmobranch interactions, and set and hook unit effort for vessels departing with observers during 2024.

NOAA Fisheries monitors the Hawaiʻi deep-set pelagic longline fishery (targeting tunas) through a mandatory observer program. This report summarizes data for deep-set fishing trips. It ensures prompt dissemination of Hawaiʻi longline observer data, and may be revised after final data editing. The following table summarizes the percent observer coverage for vessel departures, vessels departing with observers, and set and hook unit effort for observed vessels based on departure date. The tables also summarize sea turtle, marine mammal, seabird, and ESA-listed elasmobranch interactions based on the begin haul date. Unidentified elasmobranch species that could be an ESA-listed species are also included.

Vessel Departures, and Set and Hook Unit Effort for Vessels

 January 1–March 31, 2024April 1–June 30, 2024July 1–September 30, 2024October 1 –December 31, 2024January 1–December 31, 2024
Departures3833993853991,566
Departures With Observer52525055209
Observer Coverage13.58%13.03%12.99%13.78%13.35%
Total Sets6807176907402,827
Total Hooks Set1,961,1312,062,6602,067,1692,183,0738,274,033

Sea Turtle, Marine Mammal, Seabird, and ESA-Listed Elasmobranch Interactions

Sea Turtle Interactions

Sea Turtle InteractionsJanuary 1–March 31, 2024April 1–June 30, 2024July 1–September 30, 2024October 1 –December 31, 2024January 1–December 31, 2024
Released Dead Leatherback3--14
Released Injured Leatherback1-113
Released Dead Green-1--1
Released Dead Olive Ridley145212
Total Sea Turtle Interactions556420

Marine Mammal Interactions

Marine Mammal InteractionsJanuary 1–March 31, 2024April 1–June 30, 2024July 1–September 30, 2024October 1 –December 31, 2024January 1–December 31, 2024
Released Injured False Killer Whale2--24
Released Injured Risso's Dolphin1---1
Released Dead Rough-toothed Dolphin---11
Released Injured Rough-toothed Dolphin--415
Released Injured Unidentified Cetacean11--2
Total Marine Mammal Interactions414413

Seabird Interactions

Seabird InteractionsJanuary 1–March 31, 2024April 1–June 30, 2024July 1–September 30, 2024October 1 –December 31, 2024January 1–December 31, 2024
Released Dead Black-footed Albatross-1-78
Released Injured Black-footed Albatross---11
Released Dead Laysan Albatross--235
Released Dead Brown Booby1---1
Total Seabird Interactions1121115

Elasmobranch Interactions

Elasmobranch InteractionsJanuary 1–March 31, 2024April 1–June 30, 2024July 1–September 30, 2024October 1 –December 31, 2024January 1–December 31, 2024
Released Dead Oceanic Whitetip Shark60705355238
Released Alive Oceanic Whitetip Shark170157147111585
Released Alive Giant Manta Ray--134
Released Alive Manta/Mobula221-5
Total Elasmobranch Interactions232229202169832


 

Last updated by Pacific Islands Regional Office on 06/20/2025

Pacific Islands Region Observer Program