Database 1 consisted of 2009 longline sets where seven species were easily identified: albacore, bigeye and yellowfin tuna, dolphinfish, sword fish, blue (Prionace glauca) and oceanic whitetip sharks (Carcharhinus longimanus), and three broader shark species groups (mako sharks [Isurus spp.], hammerhead sharks [Sphyrna spp.], and other sharks grouped together as "mixed sharks").
Albacore CPUE reached maximum values during the full moon (between the 13th and 19th day of the lunar cycle), whereas CPUE was less important during the new moon (between the 25th and 6th day of the lunar cycle).
Case study of albacore and swordfish For albacore, LOESS regression confirmed that the highest CPUE was obtained during the full moon (Fig.
The limited number of albacore and yellowfin caught in the experimental data may have restricted the statistical analysis.
Among commercially important species, 49% of the bigeye tuna were alive upon retrieval, whereas only 3 of 79 albacore were alive.