Is It the Same Every Summer for the Euphausiids of the Ross Sea?
The pelagic ecosystem in the Ross Sea has one central component that is very important for energy exchanges between upper and lower trophic levels: the Middle Trophic Level. Krill species are the most important and abundant organisms within this level. Several acoustic surveys were conducted in the...
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2022
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ftmdpi:oai:mdpi.com:/1424-2818/14/6/433/ 2023-08-20T04:06:19+02:00 Is It the Same Every Summer for the Euphausiids of the Ross Sea? Andrea De Felice Ilaria Biagiotti Giovanni Canduci Ilaria Costantini Sara Malavolti Giordano Giuliani Iole Leonori agris 2022-05-28 application/pdf https://doi.org/10.3390/d14060433 EN eng Multidisciplinary Digital Publishing Institute Marine Diversity https://dx.doi.org/10.3390/d14060433 https://creativecommons.org/licenses/by/4.0/ Diversity; Volume 14; Issue 6; Pages: 433 krill marine acoustics biomass spatial distribution environmental data Text 2022 ftmdpi https://doi.org/10.3390/d14060433 2023-08-01T05:12:01Z The pelagic ecosystem in the Ross Sea has one central component that is very important for energy exchanges between upper and lower trophic levels: the Middle Trophic Level. Krill species are the most important and abundant organisms within this level. Several acoustic surveys were conducted in the western Ross Sea over the past 25 years, revealing that Euphausia superba is by far the most abundant species of krill in the Ross Sea during austral summer, and that its core distribution is concentrated in the northern part, bordering the Southern Ocean. Euphausia crsytallorophias, the second most abundant krill species, is more concentrated in the central Ross Sea, generally near the coast. Data on krill biomass were collected in December and January from 1994 to 2016 and analyzed together with key environmental parameters by means of two-way ANOVA in order to explain species behavior and identify possible environmental drivers. Temperature and dissolved oxygen influenced the biomass of both species of krill, while other environmental parameters only affected one species. In conclusion, the biomass of both species has varied over the years, possibly due to a complex synergy of environmental drivers. Text Euphausia superba Ross Sea Southern Ocean MDPI Open Access Publishing Austral Ross Sea Southern Ocean Diversity 14 6 433 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
krill marine acoustics biomass spatial distribution environmental data |
spellingShingle |
krill marine acoustics biomass spatial distribution environmental data Andrea De Felice Ilaria Biagiotti Giovanni Canduci Ilaria Costantini Sara Malavolti Giordano Giuliani Iole Leonori Is It the Same Every Summer for the Euphausiids of the Ross Sea? |
topic_facet |
krill marine acoustics biomass spatial distribution environmental data |
description |
The pelagic ecosystem in the Ross Sea has one central component that is very important for energy exchanges between upper and lower trophic levels: the Middle Trophic Level. Krill species are the most important and abundant organisms within this level. Several acoustic surveys were conducted in the western Ross Sea over the past 25 years, revealing that Euphausia superba is by far the most abundant species of krill in the Ross Sea during austral summer, and that its core distribution is concentrated in the northern part, bordering the Southern Ocean. Euphausia crsytallorophias, the second most abundant krill species, is more concentrated in the central Ross Sea, generally near the coast. Data on krill biomass were collected in December and January from 1994 to 2016 and analyzed together with key environmental parameters by means of two-way ANOVA in order to explain species behavior and identify possible environmental drivers. Temperature and dissolved oxygen influenced the biomass of both species of krill, while other environmental parameters only affected one species. In conclusion, the biomass of both species has varied over the years, possibly due to a complex synergy of environmental drivers. |
format |
Text |
author |
Andrea De Felice Ilaria Biagiotti Giovanni Canduci Ilaria Costantini Sara Malavolti Giordano Giuliani Iole Leonori |
author_facet |
Andrea De Felice Ilaria Biagiotti Giovanni Canduci Ilaria Costantini Sara Malavolti Giordano Giuliani Iole Leonori |
author_sort |
Andrea De Felice |
title |
Is It the Same Every Summer for the Euphausiids of the Ross Sea? |
title_short |
Is It the Same Every Summer for the Euphausiids of the Ross Sea? |
title_full |
Is It the Same Every Summer for the Euphausiids of the Ross Sea? |
title_fullStr |
Is It the Same Every Summer for the Euphausiids of the Ross Sea? |
title_full_unstemmed |
Is It the Same Every Summer for the Euphausiids of the Ross Sea? |
title_sort |
is it the same every summer for the euphausiids of the ross sea? |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/d14060433 |
op_coverage |
agris |
geographic |
Austral Ross Sea Southern Ocean |
geographic_facet |
Austral Ross Sea Southern Ocean |
genre |
Euphausia superba Ross Sea Southern Ocean |
genre_facet |
Euphausia superba Ross Sea Southern Ocean |
op_source |
Diversity; Volume 14; Issue 6; Pages: 433 |
op_relation |
Marine Diversity https://dx.doi.org/10.3390/d14060433 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/d14060433 |
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Diversity |
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14 |
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433 |
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