scholarly journals Habitat Preferences of Blue Marlin (Makaira nigricans) and Black Marlin (Istiompax indica) in the Eastern Pacific Ocean

2018 ◽  
Author(s):  
Nima Farchadi
Keyword(s):  
Pacific Ocean ◽  
Habitat Preferences ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Blue Marlin ◽  
Makaira Nigricans

Habitat preferences of striped marlin (Kajikia audax ) in the eastern Pacific Ocean

2017 ◽  
Vol 26 (6) ◽  
pp. 615-624 ◽  
Author(s):  
Tatiana A. Acosta-Pachón ◽  
Raúl O. Martínez-Rincón ◽  
Michael G. Hinton
Keyword(s):  
Pacific Ocean ◽  
Habitat Preferences ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean

Historical analysis of blue marlin (Makaira nigricans Lacepède, 1802) catches by the pelagic longline fleet in the eastern Pacific Ocean

2020 ◽  
Vol 71 (4) ◽  
pp. 532
Author(s):  
Emigdio Marín-Enríquez ◽  
Leonardo A. Abitia-Cárdenas ◽  
Xchel G. Moreno-Sánchez ◽  
Jorge S. Ramírez-Pérez
Keyword(s):  
Time Series ◽  
Pacific Ocean ◽  
Environmental Variables ◽  
Eastern Pacific ◽  
Boreal Summer ◽  
Eastern Pacific Ocean ◽  
Catch Per Unit Effort ◽  
Large Variability ◽  
Blue Marlin ◽  
Pelagic Longline

We analysed a historical (1959–2017) database of blue marlin catches reported by the industrial pelagic longline fleet operating in the eastern Pacific Ocean. The time series of catch-per-unit-effort (CPUE) for the time period 1959–2015 was modelled as a function of temporal and environmental variables by using generalised additive mixed models (GAMM). CPUE predictions were made on an independent dataset (2016–2017). Results suggested that a higher nominal CPUE occurred near the equator during boreal winter, spring and autumn, with a shift towards the north during the boreal summer. Two high CPUE events were observed, one in the early 1960s and one in the early 1990s. The final GAMM explained 61% of the total variance of the CPUE time series. Only a small percentage of total deviance was explained by the environmental variables, so we suggest that changes in fleet-targeting practices are the main cause of the large variability in the time series. The final GAMM can be used to predict blue marlin CPUE with a prediction accuracy of 3–8 fish per 1000 hooks. We observed an important decline in CPUE from the early 2000s; the factors responsible for this decline should be further investigated.

Rookery contributions, movements and conservation needs of hawksbill turtles at foraging grounds in the eastern Pacific Ocean

2018 ◽  
Vol 586 ◽  
pp. 203-216 ◽  
Author(s):  
AR Gaos ◽  
RL Lewison ◽  
MP Jensen ◽  
MJ Liles ◽  
A Henriquez ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Hawksbill Turtles

Spatial segregation by size of billfishes bycaught by the tuna purse-seine fishery in the Eastern Pacific Ocean

2021 ◽  
Vol 241 ◽  
pp. 106001
Author(s):  
Osman Crespo-Neto ◽  
Eric Díaz-Delgado ◽  
Tatiana A. Acosta-Pachón ◽  
Raúl O. Martínez-Rincón
Keyword(s):  
Pacific Ocean ◽  
Spatial Segregation ◽  
Eastern Pacific ◽  
Purse Seine ◽  
Eastern Pacific Ocean ◽  
Purse Seine Fishery
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