Distribution and Phylogenetic Characteristics of the Genes Encoding Enzymes Relevant to Methane Oxidation in Oxygen Minimum Zones of the Eastern Pacific Ocean

2007 ◽  
Vol 1 (6) ◽  
pp. 275-284 ◽  
Author(s):  
Toru Hayashi . ◽  
Hajime Obata . ◽  
Toshitaka Gamo . ◽  
Yuji Sano . ◽  
Takeshi Naganuma .
Keyword(s):  
Pacific Ocean ◽  
Methane Oxidation ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Oxygen Minimum Zones ◽  
Genes Encoding ◽  
Oxygen Minimum

scholarly journals Anthropogenic carbon in the eastern South Pacific Ocean

2007 ◽  
Vol 4 (3) ◽  
pp. 1815-1837 ◽  
Author(s):  
L. Azouzi ◽  
R. Gonçalves Ito ◽  
F. Touratier ◽  
C. Goyet
Keyword(s):  
Pacific Ocean ◽  
General Trend ◽  
South Pacific ◽  
Hydrodynamic Characteristics ◽  
Eastern Pacific Ocean ◽  
Previous Knowledge ◽  
Oxygen Minimum Zones ◽  
South Pacific Ocean ◽  
Anthropogenic Carbon ◽  
Oxygen Minimum

Abstract. We present results from the BIOSOPE cruise in the eastern South Pacific Ocean. In particular, we present estimates of the anthropogenic carbon CantTrOCA distribution in this area using the TrOCA method recently developed by Touratier and Goyet (2004a, b) and Touratier et al. (2007). We study the distribution of this anthropogenic carbon taking into account of the hydrodynamic characteristics of this region. We then compare these results with earlier estimates in nearby areas of the anthropogenic carbon as well as other anthropogenic tracer (CFC-11). The highest concentrations of CantTrOCA are located around 13° S 132° W and 32° S 91° W, and their concentrations are larger than 80 μmol kg−1 and 70 μmol kg−1, respectively. The lowest concentrations were observed below 800 m depths (≤2 μ mol kg−1) and at the Oxygen Minimum Zones (OMZ), mainly around 140° W (<11 μmol kg−1). The comparison with earlier work in nearby areas provides a general trend and indicates that the results presented here are in general agreement with previous knowledge. This work further improves our understanding on the penetration of anthropogenic carbon in the eastern Pacific Ocean.

scholarly journals Anthropogenic carbon distribution in the eastern South Pacific Ocean

2009 ◽  
Vol 6 (2) ◽  
pp. 149-156 ◽  
Author(s):  
C. Goyet ◽  
R. Ito Gonçalves ◽  
F. Touratier
Keyword(s):  
Pacific Ocean ◽  
South Pacific ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Carbon Distribution ◽  
Carbonate System ◽  
South Pacific Ocean ◽  
Anthropogenic Carbon ◽  
Minimum Zone ◽  
Oxygen Minimum

Abstract. We present results of the CO2/carbonate system from the BIOSOPE cruise in the Eastern South Pacific Ocean, in an area not sampled previously. In particular, we present estimates of the anthropogenic carbon (C>TrOCAant) distribution in the upper 1000 m of this region using the TrOCA method. The highest concentrations of CTrOCAant found around 13° S, 132° W and 32° S, 91° W, are higher than 80 μmol.kg−1 and 70 μmol.kg−1, respectively. The lowest concentrations are observed below 800 m depth (≤2 μmol.kg−1) and within the Oxygen Minimum Zone (OMZ), mainly around 140° W (<11 μmol.kg−1). As a result of the anthropogenic carbon penetration there has been decrease in pH by over 0.1 on an average in the upper 200 m. This work further improves our understanding on the penetration of anthropogenic carbon in the Eastern Pacific Ocean.

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

Postrelease survival of silky sharks (Carcharhinus falciformis) following capture by longline fishing vessels in the equatorial eastern Pacific Ocean

2019 ◽  
Vol 95 (3) ◽  
pp. 355-369 ◽  
Author(s):  
Kurt M Schaefer ◽  
Daniel W Fuller ◽  
Alexandre Aires-da-Silva ◽  
Jose M Carvajal ◽  
Jimmy Martínez-Ortiz ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Fishing Vessels ◽  
Carcharhinus Falciformis
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