New insights into ocean sunfish (Mola mola) abundance and seasonal distribution in the northeast Atlantic

Abstract The ocean sunfish, Mola mola, is the largest teleost fish in the world. Despite being found in all oceans of the world, little is known about its abundance and factors driving its distribution. In this study we provide the first abundance estimates for sunfish in offshore waters in the nort...

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Autores principales:	Patricia Breen, Ana Cañadas, Oliver Ó Cadhla, Mick Mackey, Meike Scheidat, Steve C. V. Geelhoed, Emer Rogan, Mark Jessopp
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/917dde819edf4d8dac56501a2094e8f9
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spelling	oai:doaj.org-article:917dde819edf4d8dac56501a2094e8f92021-12-02T12:32:13ZNew insights into ocean sunfish (Mola mola) abundance and seasonal distribution in the northeast Atlantic10.1038/s41598-017-02103-62045-2322https://doaj.org/article/917dde819edf4d8dac56501a2094e8f92017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02103-6https://doaj.org/toc/2045-2322Abstract The ocean sunfish, Mola mola, is the largest teleost fish in the world. Despite being found in all oceans of the world, little is known about its abundance and factors driving its distribution. In this study we provide the first abundance estimates for sunfish in offshore waters in the northeast Atlantic and the first record of extensive sunfish presence in these waters year-round. Abundance estimates and predictive distributions for sunfish in approximately 300,000 km² of the northeast Atlantic were derived from large scale offshore aerial surveys in 2015–2016 using distance sampling techniques. Generalized additive models of sunfish density were fitted to survey data from 17,360 km of line transect effort resulting in minimum abundance estimates of 12,702 (CI: 9,864-16,357) in the summer (Density = 0.043 ind/km²) and 8,223 individuals (CI: 6,178-10,946) (Density = 0.028 ind/km²) in the winter. Density surface models predicted seasonal shifts in distribution and highlighted the importance of the mixed layer depth, possibly related to thermoregulation following deep foraging dives. The abundance estimate and estimated daily consumption of 2,600 tonnes of jellyfish in the northeast Atlantic highlights the need to re-assess the importance of this species in the pelagic ecosystem, and its role in top-down control of jellyfish blooms.Patricia BreenAna CañadasOliver Ó CadhlaMick MackeyMeike ScheidatSteve C. V. GeelhoedEmer RoganMark JessoppNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Patricia Breen Ana Cañadas Oliver Ó Cadhla Mick Mackey Meike Scheidat Steve C. V. Geelhoed Emer Rogan Mark Jessopp New insights into ocean sunfish (Mola mola) abundance and seasonal distribution in the northeast Atlantic
description	Abstract The ocean sunfish, Mola mola, is the largest teleost fish in the world. Despite being found in all oceans of the world, little is known about its abundance and factors driving its distribution. In this study we provide the first abundance estimates for sunfish in offshore waters in the northeast Atlantic and the first record of extensive sunfish presence in these waters year-round. Abundance estimates and predictive distributions for sunfish in approximately 300,000 km² of the northeast Atlantic were derived from large scale offshore aerial surveys in 2015–2016 using distance sampling techniques. Generalized additive models of sunfish density were fitted to survey data from 17,360 km of line transect effort resulting in minimum abundance estimates of 12,702 (CI: 9,864-16,357) in the summer (Density = 0.043 ind/km²) and 8,223 individuals (CI: 6,178-10,946) (Density = 0.028 ind/km²) in the winter. Density surface models predicted seasonal shifts in distribution and highlighted the importance of the mixed layer depth, possibly related to thermoregulation following deep foraging dives. The abundance estimate and estimated daily consumption of 2,600 tonnes of jellyfish in the northeast Atlantic highlights the need to re-assess the importance of this species in the pelagic ecosystem, and its role in top-down control of jellyfish blooms.
format	article
author	Patricia Breen Ana Cañadas Oliver Ó Cadhla Mick Mackey Meike Scheidat Steve C. V. Geelhoed Emer Rogan Mark Jessopp
author_facet	Patricia Breen Ana Cañadas Oliver Ó Cadhla Mick Mackey Meike Scheidat Steve C. V. Geelhoed Emer Rogan Mark Jessopp
author_sort	Patricia Breen
title	New insights into ocean sunfish (Mola mola) abundance and seasonal distribution in the northeast Atlantic
title_short	New insights into ocean sunfish (Mola mola) abundance and seasonal distribution in the northeast Atlantic
title_full	New insights into ocean sunfish (Mola mola) abundance and seasonal distribution in the northeast Atlantic
title_fullStr	New insights into ocean sunfish (Mola mola) abundance and seasonal distribution in the northeast Atlantic
title_full_unstemmed	New insights into ocean sunfish (Mola mola) abundance and seasonal distribution in the northeast Atlantic
title_sort	new insights into ocean sunfish (mola mola) abundance and seasonal distribution in the northeast atlantic
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/917dde819edf4d8dac56501a2094e8f9
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New insights into ocean sunfish (Mola mola) abundance and seasonal distribution in the northeast Atlantic

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