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Degradation of dead cladoceran zooplankton and their contribution to organic carbon cycling in stratified lakes: field observation and model prediction

Aleksandr P Tolomeev, Olga P Dubovskaya, Georgiy Kirillin, Zhanna Buseva, Olesya V Kolmakova Orcid Logo, Hans-Peter Grossart, Kam Tang Orcid Logo, Michail I Gladyshev

Journal of Plankton Research, Volume: 44, Issue: 3, Pages: 386 - 400

Swansea University Author: Kam Tang Orcid Logo

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DOI (Published version): 10.1093/plankt/fbac023

Abstract

The contribution of dead zooplankton biomass to carbon cycle in aquatic ecosystems is practically unknown. Using abundance data of zooplankton in water column and dead zooplankton in sediment traps in Lake Stechlin, an ecological-mathematical model was developed to simulate the abundance and sinking...

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Published in: Journal of Plankton Research
ISSN: 0142-7873 1464-3774
Published: Oxford University Press (OUP) 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa59828
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spelling v2 59828 2022-04-14 Degradation of dead cladoceran zooplankton and their contribution to organic carbon cycling in stratified lakes: field observation and model prediction 69af43a3b9da24aef65c5d3a44956fe3 0000-0001-9427-9564 Kam Tang Kam Tang true false 2022-04-14 BGPS The contribution of dead zooplankton biomass to carbon cycle in aquatic ecosystems is practically unknown. Using abundance data of zooplankton in water column and dead zooplankton in sediment traps in Lake Stechlin, an ecological-mathematical model was developed to simulate the abundance and sinking of zooplankton carcasses and predict the related release of labile organic matter (LOM) into the water column. We found species-specific differences in mortality rate of the dominant zooplankton: Daphnia cucullata, Bosmina coregoni and Diaphanosoma brachyurum (0.008, 0.129 and 0.020 day−1, respectively) and differences in their carcass sinking velocities in metalimnion (and hypolimnion): 2.1 (7.64), 14.0 (19.5) and 1.1 (5.9) m day−1, respectively. Our model simulating formation and degradation processes of dead zooplankton predicted a bimodal distribution of the released LOM: epilimnic and metalimnic peaks of comparable intensity, ca. 1 mg DW m−3 day−1. Maximum degradation of carcasses up to ca. 1.7 mg DW m−3 day−1 occurred in the density gradient zone of metalimnion. LOM released from zooplankton carcasses into the surrounding water may stimulate microbial activity and facilitate microbial degradation of more refractory organic matter; therefore, dead zooplankton are expected to be an integral part of water column carbon source/sink dynamics in stratified lakes. Journal Article Journal of Plankton Research 44 3 386 400 Oxford University Press (OUP) 0142-7873 1464-3774 zooplankton carcasses; non-predatory mortality; sinking velocities; microbial degradation; LakeStechlin; simulation modeling 31 5 2022 2022-05-31 10.1093/plankt/fbac023 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Not Required 2024-07-10T12:27:25.6570833 2022-04-14T13:54:33.5886606 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Aleksandr P Tolomeev 1 Olga P Dubovskaya 2 Georgiy Kirillin 3 Zhanna Buseva 4 Olesya V Kolmakova 0000-0003-2694-7545 5 Hans-Peter Grossart 6 Kam Tang 0000-0001-9427-9564 7 Michail I Gladyshev 8 59828__23861__bd2974c1cfc64ffdae8cb56da60b55b2.pdf JPR_authorsfinal_13april2022.pdf 2022-04-14T14:00:06.2182661 Output 11076333 application/pdf Accepted Manuscript true 2023-05-06T00:00:00.0000000 true eng
title Degradation of dead cladoceran zooplankton and their contribution to organic carbon cycling in stratified lakes: field observation and model prediction
spellingShingle Degradation of dead cladoceran zooplankton and their contribution to organic carbon cycling in stratified lakes: field observation and model prediction
Kam Tang
title_short Degradation of dead cladoceran zooplankton and their contribution to organic carbon cycling in stratified lakes: field observation and model prediction
title_full Degradation of dead cladoceran zooplankton and their contribution to organic carbon cycling in stratified lakes: field observation and model prediction
title_fullStr Degradation of dead cladoceran zooplankton and their contribution to organic carbon cycling in stratified lakes: field observation and model prediction
title_full_unstemmed Degradation of dead cladoceran zooplankton and their contribution to organic carbon cycling in stratified lakes: field observation and model prediction
title_sort Degradation of dead cladoceran zooplankton and their contribution to organic carbon cycling in stratified lakes: field observation and model prediction
author_id_str_mv 69af43a3b9da24aef65c5d3a44956fe3
author_id_fullname_str_mv 69af43a3b9da24aef65c5d3a44956fe3_***_Kam Tang
author Kam Tang
author2 Aleksandr P Tolomeev
Olga P Dubovskaya
Georgiy Kirillin
Zhanna Buseva
Olesya V Kolmakova
Hans-Peter Grossart
Kam Tang
Michail I Gladyshev
format Journal article
container_title Journal of Plankton Research
container_volume 44
container_issue 3
container_start_page 386
publishDate 2022
institution Swansea University
issn 0142-7873
1464-3774
doi_str_mv 10.1093/plankt/fbac023
publisher Oxford University Press (OUP)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 1
active_str 0
description The contribution of dead zooplankton biomass to carbon cycle in aquatic ecosystems is practically unknown. Using abundance data of zooplankton in water column and dead zooplankton in sediment traps in Lake Stechlin, an ecological-mathematical model was developed to simulate the abundance and sinking of zooplankton carcasses and predict the related release of labile organic matter (LOM) into the water column. We found species-specific differences in mortality rate of the dominant zooplankton: Daphnia cucullata, Bosmina coregoni and Diaphanosoma brachyurum (0.008, 0.129 and 0.020 day−1, respectively) and differences in their carcass sinking velocities in metalimnion (and hypolimnion): 2.1 (7.64), 14.0 (19.5) and 1.1 (5.9) m day−1, respectively. Our model simulating formation and degradation processes of dead zooplankton predicted a bimodal distribution of the released LOM: epilimnic and metalimnic peaks of comparable intensity, ca. 1 mg DW m−3 day−1. Maximum degradation of carcasses up to ca. 1.7 mg DW m−3 day−1 occurred in the density gradient zone of metalimnion. LOM released from zooplankton carcasses into the surrounding water may stimulate microbial activity and facilitate microbial degradation of more refractory organic matter; therefore, dead zooplankton are expected to be an integral part of water column carbon source/sink dynamics in stratified lakes.
published_date 2022-05-31T12:27:24Z
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