Euphausiid respiration model revamped, link to model results
Euphausiids constitute major biomass component in shelf ecosystems and play a fundamental role in the rapid vertical transport of carbon from the ocean surface to the deeper layers during their daily vertical migration (DVM). DVM depth and migration patterns depend on oceanographic conditions with r...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.831413 2023-05-15T13:49:51+02:00 Euphausiid respiration model revamped, link to model results Tremblay, Nelly Werner, Thorsten Hünerlage, Kim Buchholz, Friedrich Abele, Doris Meyer, Bettina Brey, Thomas 2014-04-02 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, 350.8 kBytes https://doi.pangaea.de/10.1594/PANGAEA.831413 https://doi.org/10.1594/PANGAEA.831413 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.831413 https://doi.org/10.1594/PANGAEA.831413 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Tremblay, Nelly; Werner, Thorsten; Hünerlage, Kim; Buchholz, Friedrich; Abele, Doris; Meyer, Bettina; Brey, Thomas (2014): Euphausiid respiration model revamped: Latitudinal and seasonal shaping effects on krill respiration rates. Ecological Modelling, 291, 233-241, https://doi.org/10.1016/j.ecolmodel.2014.07.031 Dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.831413 https://doi.org/10.1016/j.ecolmodel.2014.07.031 2023-01-20T09:03:13Z Euphausiids constitute major biomass component in shelf ecosystems and play a fundamental role in the rapid vertical transport of carbon from the ocean surface to the deeper layers during their daily vertical migration (DVM). DVM depth and migration patterns depend on oceanographic conditions with respect to temperature, light and oxygen availability at depth, factors that are highly dependent on season in most marine regions. Changes in the abiotic conditions also shape Euphausiid metabolism including aerobic and anaerobic energy production. Here we introduce a global krill respiration model which includes the effect of latitude (LAT), the day of the year of interest (DoY), and the number of daylight hours on the day of interest (DLh), in addition to the basal variables that determine ectothermal oxygen consumption (temperature, body mass and depth) in the ANN model (Artificial Neural Networks). The newly implemented parameters link space and time in terms of season and photoperiod to krill respiration. The ANN model showed a better fit (r**2=0.780) when DLh and LAT were included, indicating a decrease in respiration with increasing LAT and decreasing DLh. We therefore propose DLh as a potential variable to consider when building physiological models for both hemispheres. We also tested for seasonality the standard respiration rate of the most common species that were investigated until now in a large range of DLh and DoY with Multiple Linear Regression (MLR) or General Additive model (GAM). GAM successfully integrated DLh (r**2= 0.563) and DoY (r**2= 0.572) effects on respiration rates of the Antarctic krill, Euphausia superba, yielding the minimum metabolic activity in mid-June and the maximum at the end of December. Neither the MLR nor the GAM approach worked for the North Pacific krill Euphausia pacifica, and MLR for the North Atlantic krill Meganyctiphanes norvegica remained inconclusive because of insufficient seasonal data coverage. We strongly encourage comparative respiration measurements of worldwide ... Dataset Antarc* Antarctic Antarctic Krill Euphausia superba Meganyctiphanes norvegica North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Gam ENVELOPE(-57.955,-57.955,-61.923,-61.923) Pacific The Antarctic |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
Euphausiids constitute major biomass component in shelf ecosystems and play a fundamental role in the rapid vertical transport of carbon from the ocean surface to the deeper layers during their daily vertical migration (DVM). DVM depth and migration patterns depend on oceanographic conditions with respect to temperature, light and oxygen availability at depth, factors that are highly dependent on season in most marine regions. Changes in the abiotic conditions also shape Euphausiid metabolism including aerobic and anaerobic energy production. Here we introduce a global krill respiration model which includes the effect of latitude (LAT), the day of the year of interest (DoY), and the number of daylight hours on the day of interest (DLh), in addition to the basal variables that determine ectothermal oxygen consumption (temperature, body mass and depth) in the ANN model (Artificial Neural Networks). The newly implemented parameters link space and time in terms of season and photoperiod to krill respiration. The ANN model showed a better fit (r**2=0.780) when DLh and LAT were included, indicating a decrease in respiration with increasing LAT and decreasing DLh. We therefore propose DLh as a potential variable to consider when building physiological models for both hemispheres. We also tested for seasonality the standard respiration rate of the most common species that were investigated until now in a large range of DLh and DoY with Multiple Linear Regression (MLR) or General Additive model (GAM). GAM successfully integrated DLh (r**2= 0.563) and DoY (r**2= 0.572) effects on respiration rates of the Antarctic krill, Euphausia superba, yielding the minimum metabolic activity in mid-June and the maximum at the end of December. Neither the MLR nor the GAM approach worked for the North Pacific krill Euphausia pacifica, and MLR for the North Atlantic krill Meganyctiphanes norvegica remained inconclusive because of insufficient seasonal data coverage. We strongly encourage comparative respiration measurements of worldwide ... |
format |
Dataset |
author |
Tremblay, Nelly Werner, Thorsten Hünerlage, Kim Buchholz, Friedrich Abele, Doris Meyer, Bettina Brey, Thomas |
spellingShingle |
Tremblay, Nelly Werner, Thorsten Hünerlage, Kim Buchholz, Friedrich Abele, Doris Meyer, Bettina Brey, Thomas Euphausiid respiration model revamped, link to model results |
author_facet |
Tremblay, Nelly Werner, Thorsten Hünerlage, Kim Buchholz, Friedrich Abele, Doris Meyer, Bettina Brey, Thomas |
author_sort |
Tremblay, Nelly |
title |
Euphausiid respiration model revamped, link to model results |
title_short |
Euphausiid respiration model revamped, link to model results |
title_full |
Euphausiid respiration model revamped, link to model results |
title_fullStr |
Euphausiid respiration model revamped, link to model results |
title_full_unstemmed |
Euphausiid respiration model revamped, link to model results |
title_sort |
euphausiid respiration model revamped, link to model results |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.831413 https://doi.org/10.1594/PANGAEA.831413 |
long_lat |
ENVELOPE(-57.955,-57.955,-61.923,-61.923) |
geographic |
Antarctic Gam Pacific The Antarctic |
geographic_facet |
Antarctic Gam Pacific The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Meganyctiphanes norvegica North Atlantic |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Meganyctiphanes norvegica North Atlantic |
op_source |
Supplement to: Tremblay, Nelly; Werner, Thorsten; Hünerlage, Kim; Buchholz, Friedrich; Abele, Doris; Meyer, Bettina; Brey, Thomas (2014): Euphausiid respiration model revamped: Latitudinal and seasonal shaping effects on krill respiration rates. Ecological Modelling, 291, 233-241, https://doi.org/10.1016/j.ecolmodel.2014.07.031 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.831413 https://doi.org/10.1594/PANGAEA.831413 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.831413 https://doi.org/10.1016/j.ecolmodel.2014.07.031 |
_version_ |
1766252427564023808 |