Swimbladder properties of Cyclothone spp. in the northeast Atlantic Ocean and the Western Mediterranean Sea
Non-migratory bristlemouth fishes (Cyclothone spp.) are the most abundant vertebrates on Earth and play an important role in the biological carbon pump by remineralizing organic carbon in deep ecosystems. Acoustic data and net sampling are often used in combination to estimate fish and zooplankton b...
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2023
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ftdoajarticles:oai:doaj.org/article:26c8495b56a74449a2f72c0b54304be9 2023-06-06T11:57:30+02:00 Swimbladder properties of Cyclothone spp. in the northeast Atlantic Ocean and the Western Mediterranean Sea Airam N. Sarmiento-Lezcano M. Pilar Olivar María José Caballero María Couret Santiago Hernández-León Arturo Castellón Marian Peña 2023-04-01T00:00:00Z https://doi.org/10.3389/fmars.2023.1093982 https://doaj.org/article/26c8495b56a74449a2f72c0b54304be9 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2023.1093982/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1093982 https://doaj.org/article/26c8495b56a74449a2f72c0b54304be9 Frontiers in Marine Science, Vol 10 (2023) micronekton bristlemouth swimbladder gas fatty-tissue histology Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2023 ftdoajarticles https://doi.org/10.3389/fmars.2023.1093982 2023-04-16T00:34:20Z Non-migratory bristlemouth fishes (Cyclothone spp.) are the most abundant vertebrates on Earth and play an important role in the biological carbon pump by remineralizing organic carbon in deep ecosystems. Acoustic data and net sampling are often used in combination to estimate fish and zooplankton biomass, but this procedure may be subject to several sources of error when applied to mesopelagic species. For instance, the allocation of echoes to species has often been biased by not considering Cyclothone spp. due to the use of nets targeting larger fish. Furthermore, the acoustic properties of the target organisms must be well understood to convert acoustic density into numerical density. The characteristics of a fish’s swimbladder are the most relevant features necessary to assess its acoustic properties. This study provides information on the swimbladder properties of six Cyclothone species inhabiting the meso- and bathypelagic layers in the North Atlantic Ocean and Mediterranean Sea, including swimbladder location within the body, fat tissue content, morphology, morphometry (only available for C. braueri and C. pseudopallida), and fish body-mass density (only available for C. braueri, C. pseudopallida, C. pallida, and C. pygmaea). The studied species showed a functional physoclistous swimbladder, with well-developed gas glands and rete mirabile and numerous capillaries in the case of the shallower species C. braueri and C. pseudopallida (mainly distributed from 400 to 600 m depth), and a fat-invested swimbladder in species with deeper vertical distribution (C. livida, C. microdon, C. pallida, and C. pygmaea). The fat content in the swimbladder (C. pallida and C. microdon) increased with depth and latitude, reducing the space in the swimbladder that could contain gas. Changes in swimbladder size and volume during growth were analyzed for shallower species, where swimbladder volume and equivalent radius followed negative allometric growth in relation to body length. Finally, values of body-mass density (ρ) and ... Article in Journal/Newspaper North Atlantic Northeast Atlantic Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 10 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
micronekton bristlemouth swimbladder gas fatty-tissue histology Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
micronekton bristlemouth swimbladder gas fatty-tissue histology Science Q General. Including nature conservation geographical distribution QH1-199.5 Airam N. Sarmiento-Lezcano M. Pilar Olivar María José Caballero María Couret Santiago Hernández-León Arturo Castellón Marian Peña Swimbladder properties of Cyclothone spp. in the northeast Atlantic Ocean and the Western Mediterranean Sea |
topic_facet |
micronekton bristlemouth swimbladder gas fatty-tissue histology Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Non-migratory bristlemouth fishes (Cyclothone spp.) are the most abundant vertebrates on Earth and play an important role in the biological carbon pump by remineralizing organic carbon in deep ecosystems. Acoustic data and net sampling are often used in combination to estimate fish and zooplankton biomass, but this procedure may be subject to several sources of error when applied to mesopelagic species. For instance, the allocation of echoes to species has often been biased by not considering Cyclothone spp. due to the use of nets targeting larger fish. Furthermore, the acoustic properties of the target organisms must be well understood to convert acoustic density into numerical density. The characteristics of a fish’s swimbladder are the most relevant features necessary to assess its acoustic properties. This study provides information on the swimbladder properties of six Cyclothone species inhabiting the meso- and bathypelagic layers in the North Atlantic Ocean and Mediterranean Sea, including swimbladder location within the body, fat tissue content, morphology, morphometry (only available for C. braueri and C. pseudopallida), and fish body-mass density (only available for C. braueri, C. pseudopallida, C. pallida, and C. pygmaea). The studied species showed a functional physoclistous swimbladder, with well-developed gas glands and rete mirabile and numerous capillaries in the case of the shallower species C. braueri and C. pseudopallida (mainly distributed from 400 to 600 m depth), and a fat-invested swimbladder in species with deeper vertical distribution (C. livida, C. microdon, C. pallida, and C. pygmaea). The fat content in the swimbladder (C. pallida and C. microdon) increased with depth and latitude, reducing the space in the swimbladder that could contain gas. Changes in swimbladder size and volume during growth were analyzed for shallower species, where swimbladder volume and equivalent radius followed negative allometric growth in relation to body length. Finally, values of body-mass density (ρ) and ... |
format |
Article in Journal/Newspaper |
author |
Airam N. Sarmiento-Lezcano M. Pilar Olivar María José Caballero María Couret Santiago Hernández-León Arturo Castellón Marian Peña |
author_facet |
Airam N. Sarmiento-Lezcano M. Pilar Olivar María José Caballero María Couret Santiago Hernández-León Arturo Castellón Marian Peña |
author_sort |
Airam N. Sarmiento-Lezcano |
title |
Swimbladder properties of Cyclothone spp. in the northeast Atlantic Ocean and the Western Mediterranean Sea |
title_short |
Swimbladder properties of Cyclothone spp. in the northeast Atlantic Ocean and the Western Mediterranean Sea |
title_full |
Swimbladder properties of Cyclothone spp. in the northeast Atlantic Ocean and the Western Mediterranean Sea |
title_fullStr |
Swimbladder properties of Cyclothone spp. in the northeast Atlantic Ocean and the Western Mediterranean Sea |
title_full_unstemmed |
Swimbladder properties of Cyclothone spp. in the northeast Atlantic Ocean and the Western Mediterranean Sea |
title_sort |
swimbladder properties of cyclothone spp. in the northeast atlantic ocean and the western mediterranean sea |
publisher |
Frontiers Media S.A. |
publishDate |
2023 |
url |
https://doi.org/10.3389/fmars.2023.1093982 https://doaj.org/article/26c8495b56a74449a2f72c0b54304be9 |
genre |
North Atlantic Northeast Atlantic |
genre_facet |
North Atlantic Northeast Atlantic |
op_source |
Frontiers in Marine Science, Vol 10 (2023) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2023.1093982/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1093982 https://doaj.org/article/26c8495b56a74449a2f72c0b54304be9 |
op_doi |
https://doi.org/10.3389/fmars.2023.1093982 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
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1767965704305246208 |