The Experts below are selected from a list of 294 Experts worldwide ranked by ideXlab platform
Juha Merila - One of the best experts on this subject based on the ideXlab platform.
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the relative importance of Lunar Phase and environmental conditions on striped marlin tetrapturus audax catches in sport fishing
Fisheries Research, 2008Co-Authors: Sofia Ortegagarcia, German Poncediaz, Robert B Ohara, Juha MerilaAbstract:We used generalized additive mixed models to analyze data on striped marlin (Tetrapturus audax) catches in Baja California sport fisheries (1987–1989) to investigate the relative importance of Lunar Phase, sea surface temperature (SST), El Ni ˜ no/Southern Oscillation (ENSO) index, and vessel effects on catch per unit effort (CPUE). The results indicate that the moon Phase has no or little (<1% of variance explained) influence on CPUE. In contrast, both SST (10%) and ENSO (6%) influenced CPUE positively. While most of the variation in CPUE remains unexplained (53%), the vessel identity explained small (ca. 1.5%) but significant amount of variance in CPUE. Hence, sport fishermen wishing to maximise their striped marlin catches would best plan their trips on the basis of weather conditions and boat/crew identities, rather than on the basis of Lunar Phase. © 2008 Elsevier B.V. All rights reserved.
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The relative importance of Lunar Phase and environmental conditions on striped marlin (Tetrapturus audax) catches in sport fishing.
Fisheries Research, 2008Co-Authors: Sofía Ortega-garcía, Germán Ponce-díaz, Robert B. O'hara, Juha MerilaAbstract:We used generalized additive mixed models to analyze data on striped marlin (Tetrapturus audax) catches in Baja California sport fisheries (1987–1989) to investigate the relative importance of Lunar Phase, sea surface temperature (SST), El Ni ˜ no/Southern Oscillation (ENSO) index, and vessel effects on catch per unit effort (CPUE). The results indicate that the moon Phase has no or little (
Sofia Ortegagarcia - One of the best experts on this subject based on the ideXlab platform.
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the relative importance of Lunar Phase and environmental conditions on striped marlin tetrapturus audax catches in sport fishing
Fisheries Research, 2008Co-Authors: Sofia Ortegagarcia, German Poncediaz, Robert B Ohara, Juha MerilaAbstract:We used generalized additive mixed models to analyze data on striped marlin (Tetrapturus audax) catches in Baja California sport fisheries (1987–1989) to investigate the relative importance of Lunar Phase, sea surface temperature (SST), El Ni ˜ no/Southern Oscillation (ENSO) index, and vessel effects on catch per unit effort (CPUE). The results indicate that the moon Phase has no or little (<1% of variance explained) influence on CPUE. In contrast, both SST (10%) and ENSO (6%) influenced CPUE positively. While most of the variation in CPUE remains unexplained (53%), the vessel identity explained small (ca. 1.5%) but significant amount of variance in CPUE. Hence, sport fishermen wishing to maximise their striped marlin catches would best plan their trips on the basis of weather conditions and boat/crew identities, rather than on the basis of Lunar Phase. © 2008 Elsevier B.V. All rights reserved.
Sofía Ortega-garcía - One of the best experts on this subject based on the ideXlab platform.
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The relative importance of Lunar Phase and environmental conditions on striped marlin (Tetrapturus audax) catches in sport fishing.
Fisheries Research, 2008Co-Authors: Sofía Ortega-garcía, Germán Ponce-díaz, Robert B. O'hara, Juha MerilaAbstract:We used generalized additive mixed models to analyze data on striped marlin (Tetrapturus audax) catches in Baja California sport fisheries (1987–1989) to investigate the relative importance of Lunar Phase, sea surface temperature (SST), El Ni ˜ no/Southern Oscillation (ENSO) index, and vessel effects on catch per unit effort (CPUE). The results indicate that the moon Phase has no or little (
Yola Metti - One of the best experts on this subject based on the ideXlab platform.
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Lunar landings relationship between Lunar Phase and catch rates for an australian gamefish tournament fishery
Fisheries Research, 2007Co-Authors: Michael B. Lowry, Danielle Williams, Yola MettiAbstract:Abstract Catch-per-unit-of-effort (CPUE) data were collected from anglers participating in gamefish tournaments off the coast of New South Wales, Australia, over nine consecutive years (1994–2003). Mean catch rates for 381 tournament days were aggregated by “Lunar Phase day” in order to analyse relationships between CPUE and Lunar Phase for eight primary gamefish species. Circular–linear correlation analysis identified significant relationships between moon Phase and CPUE for black marlin (Makaira indica), blue shark (Prionace glauca), shortfin mako shark (Isurus oxyrinchus), dolphin fish (Coryphaena hippurus), and yellowfin tuna (Thunnus albacares) while no significant relationship was evident for blue marlin (Makaira mazara), striped marlin (Tetrapterus audax) and tiger shark (Galeocerdo cuvier). Periodic regression was used to identify the nature of the relationship between Lunar Phases and catch rates for these species. A consistent pattern of catch rates peaking over the period from the new moon to the first quarter was observed for blue shark, mako shark, dolphin fish and yellowfin tuna. Results for black marlin differed, with catch rates increasing to a peak between the full moon and the last quarter. We suggest that the observed variability in CPUE maybe a result of the movement of prey species in association with Lunar Phase. Further, we hypothesise that the observed species-specific differences in CPUE of gamefish are primarily mediated by physiological adaptations and limitations, which directly affect the ability of these predators to maintain access to their prey.
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Lunar landings—Relationship between Lunar Phase and catch rates for an Australian gamefish-tournament fishery
Fisheries Research, 2007Co-Authors: Michael B. Lowry, Danielle Williams, Yola MettiAbstract:Abstract Catch-per-unit-of-effort (CPUE) data were collected from anglers participating in gamefish tournaments off the coast of New South Wales, Australia, over nine consecutive years (1994–2003). Mean catch rates for 381 tournament days were aggregated by “Lunar Phase day” in order to analyse relationships between CPUE and Lunar Phase for eight primary gamefish species. Circular–linear correlation analysis identified significant relationships between moon Phase and CPUE for black marlin (Makaira indica), blue shark (Prionace glauca), shortfin mako shark (Isurus oxyrinchus), dolphin fish (Coryphaena hippurus), and yellowfin tuna (Thunnus albacares) while no significant relationship was evident for blue marlin (Makaira mazara), striped marlin (Tetrapterus audax) and tiger shark (Galeocerdo cuvier). Periodic regression was used to identify the nature of the relationship between Lunar Phases and catch rates for these species. A consistent pattern of catch rates peaking over the period from the new moon to the first quarter was observed for blue shark, mako shark, dolphin fish and yellowfin tuna. Results for black marlin differed, with catch rates increasing to a peak between the full moon and the last quarter. We suggest that the observed variability in CPUE maybe a result of the movement of prey species in association with Lunar Phase. Further, we hypothesise that the observed species-specific differences in CPUE of gamefish are primarily mediated by physiological adaptations and limitations, which directly affect the ability of these predators to maintain access to their prey.
Robert B Ohara - One of the best experts on this subject based on the ideXlab platform.
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the relative importance of Lunar Phase and environmental conditions on striped marlin tetrapturus audax catches in sport fishing
Fisheries Research, 2008Co-Authors: Sofia Ortegagarcia, German Poncediaz, Robert B Ohara, Juha MerilaAbstract:We used generalized additive mixed models to analyze data on striped marlin (Tetrapturus audax) catches in Baja California sport fisheries (1987–1989) to investigate the relative importance of Lunar Phase, sea surface temperature (SST), El Ni ˜ no/Southern Oscillation (ENSO) index, and vessel effects on catch per unit effort (CPUE). The results indicate that the moon Phase has no or little (<1% of variance explained) influence on CPUE. In contrast, both SST (10%) and ENSO (6%) influenced CPUE positively. While most of the variation in CPUE remains unexplained (53%), the vessel identity explained small (ca. 1.5%) but significant amount of variance in CPUE. Hence, sport fishermen wishing to maximise their striped marlin catches would best plan their trips on the basis of weather conditions and boat/crew identities, rather than on the basis of Lunar Phase. © 2008 Elsevier B.V. All rights reserved.
