The Hawaii-based Longline Logbook Summary Report
January-March 2013

This report summarizes data on fish catch and fishing effort by Hawaii-based longline vessels during the first quarter of 2013 (Q1-2013). Results are based on the date gear was hauled, as reported by vessel operators to the National Marine Fisheries Service in federal logbooks of daily fishing activity. The report covers longline operations for fishing trips completed in the first quarter of 2013 and most, but not all, Q1-2013 data from trips that began late in the first quarter and continued into the second quarter of 2013. Therefore, the Q1-2013 summary statistics reported here are preliminary.

During Q1-2013, 127 vessels were active in the Hawaii-based fleet, four more vessels compared to Q1-2012 (Table 1, Fig. 1). They made 428 longline trips (2 less than in Q1-2012), including 398 using deep-set gear to target tuna (14 more than in Q1-2012) and 30 using shallow-set gear to target swordfish (16 less than in Q1-2012; Fig. 2). During Q1-2013, the fleet deployed a record 11.6 million hooks, about 1 million more hooks compared to Q1-2012 (Fig. 3). They fished mainly on the high seas outside the U.S. Exclusive Economic Zone (EEZ) (66% of the total hooks set) followed by the main Hawaiian Islands (MHI) EEZ (24%), the EEZ of the U.S. Pacific Remote Island Areas (PRIA, consisting of U.S. possessions Wake Island, Jarvis Island, Howland Island, Baker Island, Kingman Reef, Palmyra Atoll, and Johnston Atoll) (6%), and the EEZ of the Northwestern Hawaiian Islands (NWHI) (5%).

In Q1-2013, the Hawaii longline fleet caught 40,033 bigeye tuna (Fig. 4); 70% were caught on high seas outside the U.S. EEZ and 19% in the MHI EEZ. The bigeye tuna catch-per-unit-of-effort (CPUE) on deep-set trips was 3.6 fish per 1000 hooks, down 0.15 from Q1-2012 (Fig. 5). The albacore catch and CPUE on deep-set trips in Q1-2013 were 8,210 fish and 0.71 fish per 1000 hooks, respectively (Figs. 6 - 7). The yellowfin tuna catch and CPUE on deep-set trips in Q1-2013 were 8,238 fish and 0.74 fish per 1000 hooks, respectively (Figs. 8 - 9).

The Q1-2013 swordfish catch was 5,675 fish, 2,718 fewer swordfish than in Q1-2012 (Fig. 10). In Q1-2013, swordfish CPUE on shallow-set trips was 10.5 fish per 1000 hooks, about the same as in Q1-2012 (Fig. 11).

The striped marlin catch in Q1-2013 was 1,843 fish and the CPUE on deep-set trips was 0.16 fish per 1000 hooks (Figs. 12 - 13). The blue marlin catch in Q1-2013 was 643 fish and the CPUE on deep-set trips was 0.06 fish per 1000 hooks (Figs. 14 - 15).

The fleet caught 15,258 sharks in Q1-2013, of which 202 (1%) were kept. Blue shark comprised 70% of the total shark catch (10,616 fish) (Fig. 16). Blue shark CPUE on shallow-set trips in Q1-2013 was 6.1 fish per 1000 hooks, 2.5 fish per 1000 hooks below the CPUE in Q1-2012 (Fig. 17).

In Q1-2013, the Hawaii longline catch of other key pelagic species included 12,520 mahimahi (Fig. 18) with a CPUE of 1.09 fish per 1000 hooks on deep-set trips (Fig. 19); 2,645 moonfish (Fig. 20) with a CPUE of 0.23 fish per 1000 hooks on deep-set trips (Fig. 21); 24,870 pomfret (Fig. 22) with a CPUE of 2.24 fish per 1000 hooks on deep-set trips (Fig. 23); and 3,861 wahoo (Fig. 24) with a CPUE of 0.35 fish per 1000 hooks on deep-set trips (Fig. 25). A high percentage of the catch of these species was kept.

The summary statistics in Table 1 are based on logbook records from all fishing areas combined and all types of longline fishing trips—those on which the gear is set shallow targeting swordfish and those on which the gear is set deep aimed at catching tuna. Hence, the CPUE figures in Table 1 differ from those reported above, which were calculated using data exclusively from deep-set trips or shallow-set, depending on the species of interest.

The longline logbook statistics reported above refer to all fishing areas combined. Q1-2013 summary catch and effort were also compiled by several geographical sub-areas including: the MHI EEZ; the NWHI EEZ; the PRIA EEZ; the combined EEZ of MHI, NWHI and PRIA; and waters outside the U.S. EEZ. These statistics are presented in Tables 2 - 6. Q1-2013 summary statistics for the entire fishing area are also presented for each distinct trip type: swordfish-targeted trips using shallow-set gear (Table 7) and tuna-targeted trips deploying deep-set gear (Table 8).

This website also proves a PDF version of the report [download report (0.7 MB PDF)], a separate collection of quarterly and yearly charts, and an archive of quarterly and annual summary tables of fish catch and fishing effort from 1991 to the present. The statistics in the online graphs and archived tables are updated periodically as new records are added to the database and corrections are made.