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  • PANGAEA  (19)
  • Alfred Wegener Institute for Polar and Marine Research & German Society of Polar Research
  • Berichte zur Polar- und Meeresforschung = Reports on polar and marine research
  • SPRINGER
  • WILEY-BLACKWELL PUBLISHING
  • 2020-2024  (19)
Document type
Keywords
Publisher
Years
Year
  • 1
    Publication Date: 2024-03-09
    Description: A combined stable isotope and fatty acid trophic biomarker approach was adopted for key zooplankton taxa and higher trophic positions of the northern Humboldt Current System to elucidate the pelagic food-web structure and to better understand trophic interactions. Samples covered an extensive spatial range from 8.5°S to 16°S and a vertical range down to 1,000 m depth. Immediately after each haul, specimens were sorted alive in the lab and apparently live and healthy individuals were stored in vials and deep-frozen at -80°C until further lipid and stable isotope analyses. The comprehensive data set covered over 20 zooplankton taxa and indicated that three biomass-rich crustacean species usually dominated the zooplankton community, i.e., the copepods Calanus chilensis at the surface and Eucalanus inermis in the pronounced oxygen minimum zone and the krill Euphausia mucronata, resulting in an overall low number of major trophic pathways toward anchovies. In addition, the semi-pelagic squat lobster Pleuroncodes monodon appears to play a key role in the benthic-pelagic coupling. By partly feeding on benthic resources and by diel vertical migration, P. monodon provides a unique pathway for returning carbon and energy from the sea floor to the epipelagic layer, increasing the food supply for pelagic fish.
    Keywords: Coastal Upwelling System in a Changing Ocean; CUSCO
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2024-04-20
    Description: Males of the four crab species Percnon affine (H. Milne Edwards, 1853), Grapsus albolineatus (Latreille in Milbert, 1812), Orisarma intermedium (Schubart &Ng, 2020), and Geothelphusa albogilva (Shy, Ng & Yu, 1994), were collected in the southern part of Taiwan in May 2007. Individuals were starved for 12 days and midgut glands were dissected before and after the starvation period. Midgut glands were lyophilized and total lipids were extracted with dichloromethane:methanol (2:1 per volume) and an aqueous solution of 0.88% KCl. Extracted lipid mass was determined gravimetrically. Lipid classes were separated and quantified using Thin-Layer Chromatography with an integrated flame ionization detector (MK-5 TLC/FID analyzer, Iatron Laboratories). Lipids were converted to fatty acids methyl esters (FAME) by applying methanol containing 3% concentrated sulfuric acid. FAMEs were quantified by gas chromatography equipped with a DB-FFAP column, a programmable temperature vaporizer injector, and a flame ionization detector. Helium was used as carrier gas. Fatty acids were identified by retention times and by using fish oil standard (Marinol). Data are supplement to: Stumpp et al (2021) Dietary preferences of brachyuran crabs from Taiwan for marine or terrestrial food sources: evidence based on fatty acid trophic markers accepted for publication in Frontiers in Zoology
    Keywords: algae; Decapoda; fatty acids; lipids; midgut gland; triacylglycerols; trophic relationships; vascular plants
    Type: Dataset
    Format: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, 202.7 kBytes
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2024-05-17
    Keywords: Prosome, length; Prosome length, standard deviation; Species; TRAFFIC; Trophic Transfer Efficiency in the Benguela Current
    Type: Dataset
    Format: text/tab-separated-values, 561 data points
    Location Call Number Limitation Availability
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  • 4
    Publication Date: 2024-05-17
    Keywords: Acartia, c1-c3, ingestion rate of carbon; Acartia, c4-c5, ingestion rate of carbon; Acartia, female, ingestion rate of carbon; Acartia, male, ingestion rate of carbon; Aetideidae, c1-c3, ingestion rate of carbon; Aetideidae, c4-c5, ingestion rate of carbon; Aetideopsis, c4-c5, ingestion rate of carbon; Aetideus, c4-c5, ingestion rate of carbon; Aetideus, male, ingestion rate of carbon; Aetideus armatus, female, ingestion rate of carbon; Aetideus giesbrechti, female, ingestion rate of carbon; Amallothrix, female, ingestion rate of carbon; Augaptilidae, c1-c3, ingestion rate of carbon; Calanidae, c1-c3, ingestion rate of carbon; Calanoida, biomass as dry weight; Calanoida, ingestion rate of carbon; Calanoida, total; Calanoides natalis, c4-c5, ingestion rate of carbon; Calanoides natalis, female, ingestion rate of carbon; Calanoides natalis, male, ingestion rate of carbon; Calanus agulhensis, c4-c5, ingestion rate of carbon; Calanus agulhensis, female, ingestion rate of carbon; Calanus agulhensis, male, ingestion rate of carbon; Calculated; Candacia, c1-c3, ingestion rate of carbon; Candacia, c4c5, ingestion rate of carbon; Candacia bipinnata, female , ingestion rate of carbon; Candacia curta, female, ingestion rate of carbon; Candacia curta, male, ingestion rate of carbon; Candacia sp., female, ingestion rate of carbon; Centropages brachiatus, c1-c3, ingestion rate of carbon; Centropages brachiatus, c4-c5, ingestion rate of carbon; Centropages brachiatus, female, ingestion rate of carbon; Centropages brachiatus, male, ingestion rate of carbon; Centropages bradyi, c1-c3, ingestion rate of carbon; Centropages bradyi, c4-c5, ingestion rate of carbon; Chiridius gracilis, c4-c5, ingestion rate of carbon; Chiridius gracilis, female, ingestion rate of carbon; Clausocalanidae, ingestion rate of carbon; Comment; Cyclopoida, biomass as dry weight; Cyclopoida, ingestion rate of carbon; Cyclopoida, total; Date/Time of event; Depth, bottom/max; Depth, top/min; DEPTH, water; Elevation of event; Euaugaptilus palumboi, c4-c5, ingestion rate of carbon; Euaugaptilus palumboi, female, ingestion rate of carbon; Eucalanus hyalinus, female, ingestion rate of carbon; Eucalanus hyalinus, male, ingestion rate of carbon; Euchaeta, c1-c3, ingestion rate of carbon; Euchaeta, c4-c5, ingestion rate of carbon; Euchaeta acuta, female, ingestion rate of carbon; Euchaeta acuta, male, ingestion rate of carbon; Euchaeta marina, female, ingestion rate of carbon; Euchaeta media, female, ingestion rate of carbon; Euchaeta sp., male, ingestion rate of carbon; Euchirella rostrata, c4-c5, ingestion rate of carbon; Euchirella sp., c1-c3, ingestion rate of carbon; Euchirella sp., c4-c5, ingestion rate of carbon; Event label; Gaetanus brevispinus, male, ingestion rate of carbon; Gaetanus cf. minor, c1-c3, ingestion rate of carbon; Gaetanus cf. minor, c4-c5, ingestion rate of carbon; Gaetanus sp., c4-c5, ingestion rate of carbon; Gaetanus spp., c1-c3, ingestion rate of carbon; Haloptilus longicornis, c1-c3, ingestion rate of carbon; Haloptilus longicornis, c4-c5, ingestion rate of carbon; Haloptilus longicornis, female, ingestion rate of carbon; Haloptilus oxycephalus, female, ingestion rate of carbon; Heterorhabdus spp., c1-c3, ingestion rate of carbon; Heterorhabdus spp., c4-c5, ingestion rate of carbon; Heterorhabdus spp., female, ingestion rate of carbon; Heterorhabdus spp., male, ingestion rate of carbon; Labidocera acuta, female, ingestion rate of carbon; Latitude of event; Longitude of event; Lophothrix frontalis, c4-c5, ingestion rate of carbon; Lophothrix latipes, female, ingestion rate of carbon; Lucicutia, maleagna, female, ingestion rate of carbon; Lucicutia clausii, c4-c5, ingestion rate of carbon; Lucicutia clausii, female, ingestion rate of carbon; Lucicutia clausii, male, ingestion rate of carbon; Lucicutia gaussae, female, ingestion rate of carbon; Lucicutia ovalis, male, ingestion rate of carbon; Lucicutia spp., c1-c3, ingestion rate of carbon; Lucicutia spp., c4-c5, ingestion rate of carbon; Lucicutia spp., female, ingestion rate of carbon; Lucicutia spp., male, ingestion rate of carbon; M153; M153_11-4; M153_12-4; M153_18-15; M153_6-4; M153_7-5; M153_8-4; M153_9-3; Mesocalanus tenuicornis, c1-c3, ingestion rate of carbon; Mesocalanus tenuicornis, c4-c5, ingestion rate of carbon; Mesocalanus tenuicornis, female, ingestion rate of carbon; Mesocalanus tenuicornis, male, ingestion rate of carbon; Meteor (1986); Metridia brevicauda, c4-c5, ingestion rate of carbon; Metridia brevicauda, female, ingestion rate of carbon; Metridia brevicauda, male, ingestion rate of carbon; Metridia effusa, c4-c5, ingestion rate of carbon; Metridia effusa, female, ingestion rate of carbon; Metridia effusa, male, ingestion rate of carbon; Metridia lucens, c4-c5, ingestion rate of carbon; Metridia lucens, female, ingestion rate of carbon; Metridia lucens, male, ingestion rate of carbon; Metridia venusta, c4-c5, ingestion rate of carbon; Metridia venusta, female, ingestion rate of carbon; Metridia venusta, male, ingestion rate of carbon; Metridinidae, c1-c3, ingestion rate of carbon; Monacilla sp., male, ingestion rate of carbon; MSN; Multiple opening/closing net; Nannocalanus, minor, c4-c5, ingestion rate of carbon; Nannocalanus, minor, female, ingestion rate of carbon; Nannocalanus, minor, male, ingestion rate of carbon; Neocalanus gracilis, c1-c3, ingestion rate of carbon; Neocalanus gracilis, c4-c5, ingestion rate of carbon; Neocalanus gracilis, female, ingestion rate of carbon; Neocalanus gracilis, male, ingestion rate of carbon; Nullosetigera helgae, female, ingestion rate of carbon; Nullosetigera impar, female, ingestion rate of carbon; Nullosetigera spp., c4-c5, ingestion rate of carbon; Oithona, ingestion rate of carbon; Oncaeidae, ingestion rate of carbon; Pareucalanus sp., c1-c3, ingestion rate of carbon; Pareucalanus sp., c4-c5, ingestion rate of carbon; Pleuromamma abdominalis, c1-c3, ingestion rate of carbon; Pleuromamma abdominalis, c4-c5, ingestion rate of carbon; Pleuromamma abdominalis, female, ingestion rate of carbon; Pleuromamma abdominalis, male, ingestion rate of carbon; Pleuromamma quadrungulata, c1-c3, ingestion rate of carbon; Pleuromamma quadrungulata, c4-c5, ingestion rate of carbon; Pleuromamma quadrungulata, female, ingestion rate of carbon; Pleuromamma quadrungulata, male, ingestion rate of carbon; Pleuromamma robusta, c4-c5, ingestion rate of carbon; Pleuromamma robusta, male, ingestion rate of carbon; Pleuromamma spp. small, c4-c5, ingestion rate of carbon; Pleuromamma spp. small, female, ingestion rate of carbon; Pleuromamma spp. small, male, ingestion rate of carbon; Pleuromamma xiphias, c4-c5, ingestion rate of carbon; Pleuromamma xiphias, female, ingestion rate of carbon; Pleuromamma xiphias, male, ingestion rate of carbon; Pseudoamallothrix sp., c4-c5, ingestion rate of carbon; Pseudoamallothrix sp., female, ingestion rate of carbon; Pseudochirella sp., c4-c5, ingestion rate of carbon; Rhincalanus cornutus, c4-c5, ingestion rate of carbon; Rhincalanus cornutus, female, ingestion rate of carbon; Rhincalanus nasutus, c1-c3, ingestion rate of carbon; Rhincalanus nasutus, c4-c5, ingestion rate of carbon; Rhincalanus nasutus, female, ingestion rate of carbon; Rhincalanus nasutus, male, ingestion rate of carbon; Scaphocalanus curtus, female, ingestion rate of carbon; Scaphocalanus spp., c1-c3, ingestion rate of carbon; Scaphocalanus spp., c4-c5, ingestion rate of carbon; Scaphocalanus spp., female, ingestion rate of carbon; Scaphocalanus spp., male, ingestion rate of carbon; Scolecithricella spp., c1-c3, ingestion rate of carbon; Scolecithricella spp., c4-c5, ingestion rate of carbon; Scolecithricella spp., female, ingestion rate of carbon; Scolecithricella spp., male, ingestion rate of carbon; Scolecithrix bradyi, c4-c5, ingestion rate of carbon; Scolecithrix bradyi, female, ingestion rate of carbon; Scolecithrix bradyi, male, ingestion rate of carbon; Scolecithrix
    Type: Dataset
    Format: text/tab-separated-values, 4725 data points
    Location Call Number Limitation Availability
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  • 5
    Publication Date: 2024-05-17
    Description: Small copepod genera play an important role in marine food webs and biogeochemical fluxes but have been neglected in many studies. Abundance, biomass and carbon consumption rates of small- (〈1 mm prosome length (PL)), medium- (1-1.5 mm PL) and large-sized (〉2 mm PL) copepods along a cross-shelf transect in the southern Benguela upwelling system were determined using rather high taxonomic resolution. Zooplankton samples were collected with a Multinet (Hydrobios Multinet midi, 5 nets with 200 µm meshsize) during the Meteor cruise M153 in February/March 2019. Calanoids contributed on average 55 ± 19% to total copepod abundance and 82 ± 13% to total copepod biomass. Small-sized Oithona spp. (119/114 mg C m-2 d-1) and Clauso-/Paracalanidae (87/263 mg C m-2 d-1) as well as large-sized Calanoides natalis (47/193 mg C m-2 d-1) were the dominant consumers at the most inshore stations. Small and medium-sized copepodite stages of Metridia lucens were also important, especially towards the continental slope. At offshore stations, Para-/Clausocalanidae (17-27 mg C m-2 d-1), Oithona spp. (9-16 mg C m-2 d-1), Pleuromamma spp. (0-16 mg C m-2 d-1), Calanus agulhensis (0-15 mg C m-2 d-1), Acartia spp. (0-12 mg C m-2 d-1), C. natalis (0-10 mg C m-2 d-1) and M. lucens (2-6 mg C m-2 d-1) were dominant consumers. Hence, usually small- and medium-sized copepods dominated total copepod ingestion, emphasizing that inadequate representation of small copepods will lead to significant underestimations and misinterpretations of the functioning of zooplankton communities, and finally to inadequate biogeochemical models.
    Keywords: TRAFFIC; Trophic Transfer Efficiency in the Benguela Current
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2024-05-17
    Keywords: Comment; Copepoda, mass; Date/Time of event; Depth, bottom/max; Depth, top/min; DEPTH, water; Elevation of event; Event label; Latitude of event; Length, total; Life stage; Longitude of event; M153; M153_14-4; M153_15-3; M153_18-15; M153_18-18; M153_18-47; M153_18-7; M153_2-2; M153_22-5; M153_25-6; M153_29-5; M153_31-3; M153_33-3; M153_3-4; M153_34-6; M153_35-14; M153_35-16; M153_35-6; M153_35-7; M153_37-5; M153_38-5; M153_39-11; M153_39-23; M153_40-6; M153_41-4; M153_45-4; M153_5-4; M153_7-16; M153_7-5; Meteor (1986); MSN; Multiple opening/closing net; Prosome, length; Sample ID; Species; Station label; TRAFFIC; Trophic Transfer Efficiency in the Benguela Current
    Type: Dataset
    Format: text/tab-separated-values, 3366 data points
    Location Call Number Limitation Availability
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  • 7
    Publication Date: 2024-06-12
    Description: Zooplankton species/groups abundance table per mesocosm and sampling day. Abundances are given as individual per m-3 and individuals per liter.
    Keywords: Abundance; Abundance per volume; Biomass; Class; Climate - Biogeochemistry Interactions in the Tropical Ocean; Coastal Upwelling System in a Changing Ocean; CUSCO; DATE/TIME; Day of experiment; Gut fluorescence; Humboldt Current System; KOSMOS_2017; KOSMOS_2017_Peru; KOSMOS Peru; Life stage; Lipid; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Order; Oxygen Minimun zone; SFB754; Species; Stable isotopes; Treatment; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 15477 data points
    Location Call Number Limitation Availability
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  • 8
    Publication Date: 2024-06-12
    Description: This dataset shows abundance of zooplankton taxa in individuals per liter as determined by ZooScan. Each data point is one sampling day (date) in one mesocosm (MK). For details on experimental treatments and sampling, refer to Bach et al. 2021 (https://doi.org/10.5194/bg-17-4831-2020) and Ayon et al. 2022 (https://doi.org/10.5194/bg-2022-157). Raw images are stored in https://ecotaxa.obs-vlfr.fr/prj/3784. All taxonomic categories are self-explanatory.
    Keywords: Abundance; Acartia spp.; Biomass; Bivalvia; Branchiostoma spp.; Calanoida; Ceratium spp.; Climate - Biogeochemistry Interactions in the Tropical Ocean; Cnidaria; Coastal Upwelling System in a Changing Ocean; Copepoda; Copepoda, nauplii; Corycaeidae; Crustacea, larvae; CUSCO; Cyclopoida; DATE/TIME; Diatoms, centrales; Gastropoda; Gut fluorescence; Harpacticoida; Hemicyclops spp.; Humboldt Current System; KOSMOS_2017; KOSMOS_2017_Peru; KOSMOS Peru; Lipid; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Noctilucales; Oncaeidae; Oxygen Minimun zone; Paracalanus spp.; Polychaeta; Sample code/label; Sample volume; SFB754; Spionidae; Stable isotopes; Tintinnida; Zooplankton; ZOOSCAN
    Type: Dataset
    Format: text/tab-separated-values, 2430 data points
    Location Call Number Limitation Availability
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  • 9
    Publication Date: 2024-06-12
    Description: Fatty acid composition data for the two dominant copepods in the mesocosms (Paracalanus sp. and Hemicyclops sp.).
    Keywords: Abundance; Biomass; Climate - Biogeochemistry Interactions in the Tropical Ocean; Coastal Upwelling System in a Changing Ocean; CUSCO; DATE/TIME; Day of experiment; Fatty acid of total lipids; Fatty alcohol of total lipids; Gut fluorescence; Humboldt Current System; KOSMOS_2017; KOSMOS_2017_Peru; KOSMOS Peru; Lipid; Lipids, total, per dry mass; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Oxygen Minimun zone; Phase; Polyunsaturated fatty acids of total lipids; Saturated fatty acids of total lipids; SFB754; Species; Stable isotopes; Treatment; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 1431 data points
    Location Call Number Limitation Availability
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  • 10
    Publication Date: 2024-06-12
    Description: Biomass of zooplankton taxa in µg DM per liter as determined by ZooScan, using published area to dry weight relationships (Lehette & Hernandez-Leon 2009). Each data point is one sampling day (date) in one mesocosm (MK). For details on experimental treatments and sampling, refer to Bach et al. 2021 (https://doi.org/10.5194/bg-17-4831-2020) and Ayon et al. 2022 (https://doi.org/10.5194/bg-2022-157). Raw images are stored in https://ecotaxa.obs-vlfr.fr/prj/3784. All taxonomic categories are self-expanatory.
    Keywords: Abundance; Acartia spp., biomass, dry mass; Biomass; Bivalvia, biomass, dry mass; Branchiostoma spp., biomass, dry mass; Calanoida, biomass, dry mass; Ceratium spp., biomass, dry mass; Climate - Biogeochemistry Interactions in the Tropical Ocean; Cnidaria, biomass, dry mass; Coastal Upwelling System in a Changing Ocean; Copepoda, biomass, dry mass; Copepoda, nauplii, biomass, dry mass; Corycaeidae, biomass, dry mass; Crustacea, larvae, biomass, dry mass; CUSCO; Cyclopoida, biomass, dry mass; DATE/TIME; Diatoms, centrales, biomass, dry mass; Gastropoda, biomass, dry mass; Gut fluorescence; Harpacticoida, biomass, dry mass; Hemicyclops spp., biomass, dry mass; Humboldt Current System; KOSMOS_2017; KOSMOS_2017_Peru; KOSMOS Peru; Lipid; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Noctilucales, biomass, dry mass; Oncaeidae, biomass, dry mass; Oxygen Minimun zone; Paracalanus spp., biomass, dry mass; Polychaeta, biomass, dry mass; Sample code/label; Sample volume; SFB754; Spionidae, biomass, dry mass; Stable isotopes; Tintinnida, biomass, dry mass; Zooplankton; Zooplankton, biomass, dry mass
    Type: Dataset
    Format: text/tab-separated-values, 2430 data points
    Location Call Number Limitation Availability
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