Distribution and biomass of gelatinous zooplankton in relation to an oxygen minimum zone and a shallow seamount in the Eastern Tropical North Atlantic Ocean
Physical and topographic characteristics can structure pelagic habitats and affect the plankton community composition. For example, oxygen minimum zones (OMZs) are expected to lead to a habitat compression for species with a high oxygen demand, while upwelling of nutrient-rich deep water at seamount...
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Language: | English |
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Online Access: | http://ir.qdio.ac.cn/handle/337002/178801 http://ir.qdio.ac.cn/handle/337002/178802 https://doi.org/10.1016/j.marenvres.2022.105566 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/178802 2023-05-15T17:32:03+02:00 Distribution and biomass of gelatinous zooplankton in relation to an oxygen minimum zone and a shallow seamount in the Eastern Tropical North Atlantic Ocean Luskow, Florian Christiansen, Bernd Chi, Xupeng Silva, Pericles Neitzel, Philipp Brooks, Mollie E. Jaspers, Cornelia 2022-03-01 http://ir.qdio.ac.cn/handle/337002/178801 http://ir.qdio.ac.cn/handle/337002/178802 https://doi.org/10.1016/j.marenvres.2022.105566 英语 eng ELSEVIER SCI LTD MARINE ENVIRONMENTAL RESEARCH http://ir.qdio.ac.cn/handle/337002/178801 http://ir.qdio.ac.cn/handle/337002/178802 doi:10.1016/j.marenvres.2022.105566 Cape Verde Ocean Observatory Ctenophore Jellyfish Oxygen minimum zone Pyrosome Senghor Seamount Length-weight regressions Deoxygenation Global change Environmental Sciences & Ecology Marine & Freshwater Biology Toxicology Environmental Sciences 期刊论文 2022 ftchinacasciocas https://doi.org/10.1016/j.marenvres.2022.105566 2022-07-29T12:11:47Z Physical and topographic characteristics can structure pelagic habitats and affect the plankton community composition. For example, oxygen minimum zones (OMZs) are expected to lead to a habitat compression for species with a high oxygen demand, while upwelling of nutrient-rich deep water at seamounts can locally in -crease productivity, especially in oligotrophic oceanic waters. Here we investigate the response of the gelatinous zooplankton (GZ) assemblage and biomass to differing oxygen conditions and to a seamount in the Eastern Tropical North Atlantic (ETNA) around the Cape Verde archipelago. A total of 16 GZ taxa (>1100 specimens) were found in the upper 1000 m with distinct species-specific differences, such as the absence of deep-living species Atolla wyvillei and Periphylla periphylla above the shallow seamount summit. Statistical analyses consid-ering the most prominent groups, present at all stations, namely Beroe spp., hydromedusae (including Zygocanna vagans, Halicreas minimum, Colobonema sericeum, Solmissus spp.) and total GZ, showed a strong positive corre-lation of abundance with temperature for all groups, whereas oxygen had a weak negative correlation only with abundances of Beroe spp. and hydromedusae. To account for size differences between species, we established length-weight regressions and investigated total GZ biomass changes in relation to physical (OMZ) and topo-graphic characteristics. The highest GZ biomass was observed at depths of lowest oxygen concentrations and deepest depth strata at the southeastern flank of the seamount and at two stations south of the Cape Verde ar-chipelago. Our data suggest that, irrespective of their patchy distribution, GZ organisms are ubiquitous food web members of the ETNA, and their habitat includes waters of low oxygen content. Report North Atlantic Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Marine Environmental Research 175 105566 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Cape Verde Ocean Observatory Ctenophore Jellyfish Oxygen minimum zone Pyrosome Senghor Seamount Length-weight regressions Deoxygenation Global change Environmental Sciences & Ecology Marine & Freshwater Biology Toxicology Environmental Sciences |
spellingShingle |
Cape Verde Ocean Observatory Ctenophore Jellyfish Oxygen minimum zone Pyrosome Senghor Seamount Length-weight regressions Deoxygenation Global change Environmental Sciences & Ecology Marine & Freshwater Biology Toxicology Environmental Sciences Luskow, Florian Christiansen, Bernd Chi, Xupeng Silva, Pericles Neitzel, Philipp Brooks, Mollie E. Jaspers, Cornelia Distribution and biomass of gelatinous zooplankton in relation to an oxygen minimum zone and a shallow seamount in the Eastern Tropical North Atlantic Ocean |
topic_facet |
Cape Verde Ocean Observatory Ctenophore Jellyfish Oxygen minimum zone Pyrosome Senghor Seamount Length-weight regressions Deoxygenation Global change Environmental Sciences & Ecology Marine & Freshwater Biology Toxicology Environmental Sciences |
description |
Physical and topographic characteristics can structure pelagic habitats and affect the plankton community composition. For example, oxygen minimum zones (OMZs) are expected to lead to a habitat compression for species with a high oxygen demand, while upwelling of nutrient-rich deep water at seamounts can locally in -crease productivity, especially in oligotrophic oceanic waters. Here we investigate the response of the gelatinous zooplankton (GZ) assemblage and biomass to differing oxygen conditions and to a seamount in the Eastern Tropical North Atlantic (ETNA) around the Cape Verde archipelago. A total of 16 GZ taxa (>1100 specimens) were found in the upper 1000 m with distinct species-specific differences, such as the absence of deep-living species Atolla wyvillei and Periphylla periphylla above the shallow seamount summit. Statistical analyses consid-ering the most prominent groups, present at all stations, namely Beroe spp., hydromedusae (including Zygocanna vagans, Halicreas minimum, Colobonema sericeum, Solmissus spp.) and total GZ, showed a strong positive corre-lation of abundance with temperature for all groups, whereas oxygen had a weak negative correlation only with abundances of Beroe spp. and hydromedusae. To account for size differences between species, we established length-weight regressions and investigated total GZ biomass changes in relation to physical (OMZ) and topo-graphic characteristics. The highest GZ biomass was observed at depths of lowest oxygen concentrations and deepest depth strata at the southeastern flank of the seamount and at two stations south of the Cape Verde ar-chipelago. Our data suggest that, irrespective of their patchy distribution, GZ organisms are ubiquitous food web members of the ETNA, and their habitat includes waters of low oxygen content. |
format |
Report |
author |
Luskow, Florian Christiansen, Bernd Chi, Xupeng Silva, Pericles Neitzel, Philipp Brooks, Mollie E. Jaspers, Cornelia |
author_facet |
Luskow, Florian Christiansen, Bernd Chi, Xupeng Silva, Pericles Neitzel, Philipp Brooks, Mollie E. Jaspers, Cornelia |
author_sort |
Luskow, Florian |
title |
Distribution and biomass of gelatinous zooplankton in relation to an oxygen minimum zone and a shallow seamount in the Eastern Tropical North Atlantic Ocean |
title_short |
Distribution and biomass of gelatinous zooplankton in relation to an oxygen minimum zone and a shallow seamount in the Eastern Tropical North Atlantic Ocean |
title_full |
Distribution and biomass of gelatinous zooplankton in relation to an oxygen minimum zone and a shallow seamount in the Eastern Tropical North Atlantic Ocean |
title_fullStr |
Distribution and biomass of gelatinous zooplankton in relation to an oxygen minimum zone and a shallow seamount in the Eastern Tropical North Atlantic Ocean |
title_full_unstemmed |
Distribution and biomass of gelatinous zooplankton in relation to an oxygen minimum zone and a shallow seamount in the Eastern Tropical North Atlantic Ocean |
title_sort |
distribution and biomass of gelatinous zooplankton in relation to an oxygen minimum zone and a shallow seamount in the eastern tropical north atlantic ocean |
publisher |
ELSEVIER SCI LTD |
publishDate |
2022 |
url |
http://ir.qdio.ac.cn/handle/337002/178801 http://ir.qdio.ac.cn/handle/337002/178802 https://doi.org/10.1016/j.marenvres.2022.105566 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
MARINE ENVIRONMENTAL RESEARCH http://ir.qdio.ac.cn/handle/337002/178801 http://ir.qdio.ac.cn/handle/337002/178802 doi:10.1016/j.marenvres.2022.105566 |
op_doi |
https://doi.org/10.1016/j.marenvres.2022.105566 |
container_title |
Marine Environmental Research |
container_volume |
175 |
container_start_page |
105566 |
_version_ |
1766129973814362112 |