de.pangaea.dataset988902 und dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-04-30T20:50:24Z https://doi.pangaea.de/10.1594/PANGAEA.988902 2026-02-25T06:15:27 publication https://doi.org/10.1594/PANGAEA.988902 Watts, Aspen

aspenrynwatts@gmail.com

https://orcid.org/0009-0002-3691-3701 information author Engels, Stefan

s.engels@bbk.ac.uk

https://orcid.org/0000-0002-2078-0361 information author Martín-Puertas, Celia

celia.martinpuertas@rhul.ac.uk

https://orcid.org/0000-0002-1349-5669 information author Bennion, Helen https://orcid.org/0000-0003-0125-9308 information author Boyle, John

jfb@liverpool.ac.uk

author Moyle, Madeleine

maddy.moyle@liverpool.ac.uk

author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital This dataset provides palaeoecological data for the Holocene sediment sequence retrieved from Hatch Mere (UK) in 2023. Chironomid counts are presented against depth (cm) and age (year CE, year BP). The data provides information on the changes in the lake ecosystem, and has been used to identify the effects of external drivers, primarily eutrophication and attempted restoration, on biodiversity parameters (alpha and beta diversity). The cores were retrieved from the lake using a gravity corer (0-41.5 cm) and a Russian chamber corer (56.5-805.5 cm) deployed from a boat and a fixed platform, respectively, during field work in April 2023. The gravity core (HAT23-2-GC) was sampled every 2 cm from 0-42 cm, with additional samples at 1.5 cm and 41.5 cm, in 1 cm thick subsamples. The Russian core (HAT23-2-R) was sampled once per drive, at approximately every 125 cm from 139-806 cm, with additional samples taken at 56.5 cm and 97.5 cm to capture the transition between the two gravity core and the Russian core sequence. A total of 32 samples from the Hatch Mere sediment sequence was treated with warm KOH (10%) to de-flocculate the material, and subsequently rinsed over a 100 µm mesh. Chironomid head capsules (HCs) were picked from the residue using a Bogorov sorting tray, and mounted onto microscope slides using Euparal mounting medium. HCs were identified using Brooks et al. (2007, doi:10.1007/s10933-007-9191-1). Cricotopus (Isocladius) intersectus-type and Cricotopus (Isocladius) laricomalis-type were combined into a single group (C. intersectus-type sensu lato (s.l.)), as they are similar in appearance and ecological role (Brooks et al., 2007, doi:10.1007/s10933-007-9191-1). All samples reached a minimum HC count of 50. However, due to a labelling error, samples at 24.5 and 25.5 cm were merged into a single sample. The final dataset presented here contains 31 samples. All analyses were performed in the laboratory of Birkbeck, University of London, England. completed Watts, Aspen

aspenrynwatts@gmail.com

https://orcid.org/0009-0002-3691-3701 information principalInvestigator Anthropogenic impact Chironomids Palaeoecology UK theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -2.671333 -2.671333 53.244583 53.244583 2023-04-13T09:00:00 2023-04-13T18:00:00 Project: Porevision on agricultural diffuse pollution of the West Midlands Meres: field data gathering for source apportionment model (LESA-NP and FARMSCOPER)licy Core thematicClassification Depth, composite physicalMeasurement mcd mcd Age physicalMeasurement a AD/CE a AD/CE AGE physicalMeasurement ka BP ka BP Counts physicalMeasurement # # Chironomus anthracinus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Chironomus plumosus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Chironomini larvula physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; 1st instar # # Cladopelma lateralis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cladopelma laccophila-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cryptotendipes physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cryptochironomus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Demicryptochironomus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Dicrotendipes nervosus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Einfeldia dissidens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Endochironomus albipennis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Endochironomus impar-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Endochironomus tendens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Glyptotendipes barbipes-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Glyptotendipes pallens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Glyptotendipes severini-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Heterotanytarsus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Microtendipes pedellus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Pagastiella physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Parachironomus varus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Parachironomus vitiosus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Phaenopsectra flavipes physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Polypedilum-type A physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Polypedilum nubeculosum-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Polypedilum nubifer physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Polypedilum sordens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Sergentia coracina physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Stictochironomus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Tribelos physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Xenochironomus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Zavreliella physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Acalcarella physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Alcalcarella # # Abiskomyia physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Chaetocladius-type B physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Chaetocladius dentiforceps physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Chaetocladius piger-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Corynoneura-type A physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Corynoneura edwardsi-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cricotopus bicinctus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cricotopus-type C physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Cricotopus (Isocladius) Type C # # Cricotopus cylindraceus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cricotopus intersectus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Cricotopus intersectus-type s.l. # # Cricotopus-type P physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cricotopus trifasciatus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Cricotopus (Isocladius) trifasciatus-type # # Paracricotopus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Eukiefferiella claripennis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Eukiefferiella fittkaui-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Georthocladius physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Heterotrissocladius maeaeri-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Hydrobaenus conformis physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Lauterborniella physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Limnophyes physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Metriocnemus eurynotus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Orthocladius consobrinus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Parakiefferiella bathophila-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Psectrocladius barbatipes-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Psectrocladius (Mesopsectrocladius) barbatipes-type # # Psectrocladius barbimanus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Psectrocladius (Psectrocladius) barbimanus-type # # Psectrocladius calcaratus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Psectrocladius septentrionalis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Psectrocladius (Monopsectrocladius) septentrionalis-type # # Psectrocladius sordidellus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; Psectrocladius (Psectrocladius) sordidellus-type # # Psectrocladius psilopterus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Rheocricotopus effusus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Synorthocladius physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Zalutschia mucronata-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Pseudochironomus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Ablabesmyia physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Derotanypus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Nilotanypus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Krenopelopia physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Procladius physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Thienemannimyia physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Zavrelimyia physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Cladotanytarsus mancus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Corynocera oliveri-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Micropsectra insignilobus-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Micropsectra radialis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Unknown physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Paratanytarsus penicillatus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Paratanytarsus sp. physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Rheotanytarsus physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Stempellinella physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Tanytarsus chinyensis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Tanytarsus glabrescens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Tanytarsus lactescens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Tanytarsus lugens-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Tanytarsus mendax-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Tanytarsus pallidicornis-type physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # Prodiamesa physicalMeasurement Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium # # text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.988902?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: HAT23 * LATITUDE: 53.244583 * LONGITUDE: -2.671333 * DATE/TIME START: 2023-04-13T09:00:00 * DATE/TIME END: 2023-04-13T18:00:00 * ELEVATION: 75.8 m * LAKE WATER DEPTH: 3.8 m * METHOD/DEVICE: Multiple investigations Lake sediment sequence retrieved using a gravity corer deployed from boat, along with Russian chamber core deployed from anchored floating platform. Gravity corer, according to Boyle (1995); Russian chamber corer 2023-04-13T09:00:00 Related to 2025-01-01 publication Watts, Aspen

aspenrynwatts@gmail.com

https://orcid.org/0009-0002-3691-3701 information author documentHardcopy Birkbeck, University of London References 1995-01-01 publication https://doi.org/10.1007/BF00678113 Boyle, J F https://orcid.org/0000-0002-1172-1079 information author documentDigital Journal of Paleolimnology 13(1) 85-87 References 2008-01-01 publication https://doi.org/10.1007/s10933-007-9191-1 Brooks, Stephen J author Langdon, Pete G author Heiri, Oliver

oliver.heiri@unibas.ch

https://orcid.org/0000-0002-3957-5835 information author documentDigital In: Brodersen, Klaus Peter (Ed.), Technical Guide No. 10, Quaternary Research Association, London,, Journal of Paleolimnology 40(2) 751-753