Low-resolution chironomid counts for centennial-scale sediment sequences from 5 West Midlands (UK) meres
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2026
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| _version_ | 1867170141868916736 |
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| author | Watts, Aspen Engels, Stefan Martín-Puertas, Celia Bennion, Helen Boyle, John Moyle, Madeleine |
| author_facet | Watts, Aspen Engels, Stefan Martín-Puertas, Celia Bennion, Helen Boyle, John Moyle, Madeleine |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This dataset provides palaeoecological data for 5 West Midlands Meres (UK). The meres that were sampled are Aqualate Mere, Comber Mere, Cop Mere, Crose Mere, and White Mere. Chironomid counts are presented against depth (cm) and age (year CE). The data provides information on the changes in the lake ecosystem, and has been used to identify the effects of external drivers on biodiversity parameters, with a focus on the effects of eutrophication of shallow meres on alpha and beta diversity dynamics of the chironomid fauna. Sediment cores were retrieved from the respective lakes using gravity corers deployed from a boat, in April 2023. The gravity cores were sampled at (a) the deepest end (30.5-38.5 cm), (b) 10.5 cm, and (c) consecutive 1-cm-thick samples between 0-3 cm core depth. A total of 25 samples from the sediment sequences were 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). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_988851 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Low-resolution chironomid counts for centennial-scale sediment sequences from 5 West Midlands (UK) meres Watts, Aspen Engels, Stefan Martín-Puertas, Celia Bennion, Helen Boyle, John Moyle, Madeleine Ablabesmyia; Age; AGE; Anthropogenic impact; AQUA23-1-GC; Chaetocladius-type B; Chironomids; Chironomini larvula; Chironomus anthracinus-type; Chironomus plumosus-type; Cladopelma lateralis-type; Cladotanytarsus mancus-type; COMB23-2-GC; Comment of event; COP23-1-GC; Corynoneura edwardsi-type; Cricotopus bicinctus-type; Cricotopus cylindraceus-type; Cricotopus intersectus-type; Cricotopus trifasciatus-type; CRO23-1-GC; Cryptochironomus; Date/Time of event; Date/Time of event 2; Demicryptochironomus; DEPTH, sediment/rock; Dicrotendipes nervosus-type; Einfeldia dissidens-type; Elevation of event; Endochironomus albipennis-type; Endochironomus impar-type; Endochironomus tendens-type; Epoicocladius; Eukiefferiella claripennis-type; Event label; GC; Georthocladius; Glyptotendipes barbipes-type; Glyptotendipes pallens-type; Gravity corer; Hatchmere, Cheshire, United Kingdom; Heterotrissocladius maeaeri-type; Hydrobaenus johannseni-type; Latitude of event; Lauterborniella; Limnophyes; Longitude of event; Micropsectra radialis-type; Microtendipes pedellus-type; Oliveridia; Orthocladius-type S; Palaeoecology; Parachironomus varus-type; Parachironomus vitiosus-type; Parakiefferiella bathophila-type; Polypedilum nubeculosum-type; Polypedilum sordens-type; Procladius; Psectrocladius barbatipes-type; Psectrocladius barbimanus-type; Psectrocladius sordidellus-type; Site; Stempellinella; Stictochironomus; Tanytarsus chinyensis-type; Tanytarsus lugens-type; Tanytarsus mendax-type; UK; Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; WM23-1-GC This dataset provides palaeoecological data for 5 West Midlands Meres (UK). The meres that were sampled are Aqualate Mere, Comber Mere, Cop Mere, Crose Mere, and White Mere. Chironomid counts are presented against depth (cm) and age (year CE). The data provides information on the changes in the lake ecosystem, and has been used to identify the effects of external drivers on biodiversity parameters, with a focus on the effects of eutrophication of shallow meres on alpha and beta diversity dynamics of the chironomid fauna. Sediment cores were retrieved from the respective lakes using gravity corers deployed from a boat, in April 2023. The gravity cores were sampled at (a) the deepest end (30.5-38.5 cm), (b) 10.5 cm, and (c) consecutive 1-cm-thick samples between 0-3 cm core depth. A total of 25 samples from the sediment sequences were 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). |
| title | Low-resolution chironomid counts for centennial-scale sediment sequences from 5 West Midlands (UK) meres |
| topic | Ablabesmyia; Age; AGE; Anthropogenic impact; AQUA23-1-GC; Chaetocladius-type B; Chironomids; Chironomini larvula; Chironomus anthracinus-type; Chironomus plumosus-type; Cladopelma lateralis-type; Cladotanytarsus mancus-type; COMB23-2-GC; Comment of event; COP23-1-GC; Corynoneura edwardsi-type; Cricotopus bicinctus-type; Cricotopus cylindraceus-type; Cricotopus intersectus-type; Cricotopus trifasciatus-type; CRO23-1-GC; Cryptochironomus; Date/Time of event; Date/Time of event 2; Demicryptochironomus; DEPTH, sediment/rock; Dicrotendipes nervosus-type; Einfeldia dissidens-type; Elevation of event; Endochironomus albipennis-type; Endochironomus impar-type; Endochironomus tendens-type; Epoicocladius; Eukiefferiella claripennis-type; Event label; GC; Georthocladius; Glyptotendipes barbipes-type; Glyptotendipes pallens-type; Gravity corer; Hatchmere, Cheshire, United Kingdom; Heterotrissocladius maeaeri-type; Hydrobaenus johannseni-type; Latitude of event; Lauterborniella; Limnophyes; Longitude of event; Micropsectra radialis-type; Microtendipes pedellus-type; Oliveridia; Orthocladius-type S; Palaeoecology; Parachironomus varus-type; Parachironomus vitiosus-type; Parakiefferiella bathophila-type; Polypedilum nubeculosum-type; Polypedilum sordens-type; Procladius; Psectrocladius barbatipes-type; Psectrocladius barbimanus-type; Psectrocladius sordidellus-type; Site; Stempellinella; Stictochironomus; Tanytarsus chinyensis-type; Tanytarsus lugens-type; Tanytarsus mendax-type; UK; Wet sieved (100 µm) followed by hand picking from Bogorov sorting tray, mounted on permanent microscope slides, Euparal mounting medium; WM23-1-GC |
| url | https://doi.org/10.1594/PANGAEA.988851 |