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Ziphius cavirostris presence relative to the vertical and temporal variability of oceanographic conditions in the Southern California Bight.

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Title: Ziphius cavirostris presence relative to the vertical and temporal variability of oceanographic conditions in the Southern California Bight.
Authors: Schoenbeck, Clara M.1 (AUTHOR) cschoenb@ucsd.edu, Solsona‐Berga, Alba1 (AUTHOR), Franks, Peter J. S.1 (AUTHOR), Frasier, Kaitlin E.1 (AUTHOR), Trickey, Jennifer S.2 (AUTHOR), Aguilar, Catalina1 (AUTHOR), Schroeder, Isaac D.3 (AUTHOR), Širović, Ana4 (AUTHOR), Bograd, Steven J.4,5 (AUTHOR), Gopalakrishnan, Ganesh1 (AUTHOR), Baumann‐Pickering, Simone1 (AUTHOR)
Source: Ecology & Evolution (20457758). Jul2024, Vol. 14 Issue 7, p1-15. 15p.
Subject Terms: *Anthropogenic effects on nature, El Niño, Autumn, Beaked whales, Southern oscillation
Abstract: The oceanographic conditions of the Southern California Bight (SCB) dictate the distribution and abundance of prey resources and therefore the presence of mobile predators, such as goose‐beaked whales (Ziphius cavirostris). Goose‐beaked whales are deep‐diving odontocetes that spend a majority of their time foraging at depth. Due to their cryptic behavior, little is known about how they respond to seasonal and interannual changes in their environment. This study utilizes passive acoustic data recorded from two sites within the SCB to explore the oceanographic conditions that goose‐beaked whales appear to favor. Utilizing optimum multiparameter analysis, modeled temperature and salinity data are used to identify and quantify these source waters: Pacific Subarctic Upper Water (PSUW), Pacific Equatorial Water (PEW), and Eastern North Pacific Central Water (ENPCW). The interannual and seasonal variability in goose‐beaked whale presence was related to the variability in El Niño Southern Oscillation events and the fraction and vertical distribution of the three source waters. Goose‐beaked whale acoustic presence was highest during the winter and spring and decreased during the late summer and early fall. These seasonal increases occurred at times of increased fractions of PEW in the California Undercurrent and decreased fractions of ENPCW in surface waters. Interannual increases in goose‐beaked whale presence occurred during El Niño events. These results establish a baseline understanding of the oceanographic characteristics that correlate with goose‐beaked whale presence in the SCB. Furthering our knowledge of this elusive species is key to understanding how anthropogenic activities impact goose‐beaked whales. [ABSTRACT FROM AUTHOR]
Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Ziphius cavirostris presence relative to the vertical and temporal variability of oceanographic conditions in the Southern California Bight.
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  Data: <searchLink fieldCode="AR" term="%22Schoenbeck%2C+Clara+M%2E%22">Schoenbeck, Clara M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cschoenb@ucsd.edu</i><br /><searchLink fieldCode="AR" term="%22Solsona‐Berga%2C+Alba%22">Solsona‐Berga, Alba</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Franks%2C+Peter+J%2E+S%2E%22">Franks, Peter J. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Frasier%2C+Kaitlin+E%2E%22">Frasier, Kaitlin E.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Trickey%2C+Jennifer+S%2E%22">Trickey, Jennifer S.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aguilar%2C+Catalina%22">Aguilar, Catalina</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schroeder%2C+Isaac+D%2E%22">Schroeder, Isaac D.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Širović%2C+Ana%22">Širović, Ana</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bograd%2C+Steven+J%2E%22">Bograd, Steven J.</searchLink><relatesTo>4,5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gopalakrishnan%2C+Ganesh%22">Gopalakrishnan, Ganesh</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Baumann‐Pickering%2C+Simone%22">Baumann‐Pickering, Simone</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Ecology+%26+Evolution+%2820457758%29%22">Ecology & Evolution (20457758)</searchLink>. Jul2024, Vol. 14 Issue 7, p1-15. 15p.
– Name: Subject
  Label: Subject Terms
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  Data: *<searchLink fieldCode="DE" term="%22Anthropogenic+effects+on+nature%22">Anthropogenic effects on nature</searchLink><br /><searchLink fieldCode="DE" term="%22El+Niño%22">El Niño</searchLink><br /><searchLink fieldCode="DE" term="%22Autumn%22">Autumn</searchLink><br /><searchLink fieldCode="DE" term="%22Beaked+whales%22">Beaked whales</searchLink><br /><searchLink fieldCode="DE" term="%22Southern+oscillation%22">Southern oscillation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The oceanographic conditions of the Southern California Bight (SCB) dictate the distribution and abundance of prey resources and therefore the presence of mobile predators, such as goose‐beaked whales (Ziphius cavirostris). Goose‐beaked whales are deep‐diving odontocetes that spend a majority of their time foraging at depth. Due to their cryptic behavior, little is known about how they respond to seasonal and interannual changes in their environment. This study utilizes passive acoustic data recorded from two sites within the SCB to explore the oceanographic conditions that goose‐beaked whales appear to favor. Utilizing optimum multiparameter analysis, modeled temperature and salinity data are used to identify and quantify these source waters: Pacific Subarctic Upper Water (PSUW), Pacific Equatorial Water (PEW), and Eastern North Pacific Central Water (ENPCW). The interannual and seasonal variability in goose‐beaked whale presence was related to the variability in El Niño Southern Oscillation events and the fraction and vertical distribution of the three source waters. Goose‐beaked whale acoustic presence was highest during the winter and spring and decreased during the late summer and early fall. These seasonal increases occurred at times of increased fractions of PEW in the California Undercurrent and decreased fractions of ENPCW in surface waters. Interannual increases in goose‐beaked whale presence occurred during El Niño events. These results establish a baseline understanding of the oceanographic characteristics that correlate with goose‐beaked whale presence in the SCB. Furthering our knowledge of this elusive species is key to understanding how anthropogenic activities impact goose‐beaked whales. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/ece3.11708
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      – Code: eng
        Text: English
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        PageCount: 15
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      – SubjectFull: Anthropogenic effects on nature
        Type: general
      – SubjectFull: El Niño
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      – SubjectFull: Autumn
        Type: general
      – SubjectFull: Beaked whales
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      – SubjectFull: Southern oscillation
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      – TitleFull: Ziphius cavirostris presence relative to the vertical and temporal variability of oceanographic conditions in the Southern California Bight.
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              Text: Jul2024
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