Identification

Title

Freshwater macroinvertebrate community data, stream discharge, and hyporheic fine sediment mass in experimental channels recovering over a four-month period from a prior drought in 2022

Abstract

[This dataset is embargoed until September 1, 2025]. The 3Rs experimental study investigated how trajectories of recovery following a prolonged drought were affected by the prior sediment composition and fine sediment loading. On each of six sampling occasions between December 2022 and March 2023 (Days 1, 8, 13, 29, 57 & 113 following resumption of flow), in each of 12 replicate experimental channels, we collected data on the macroinvertebrate communities on the stream bed surface (benthos), 10cm below the surface of stream bed (hyperheos), and potential colonists dispersing into each of the channels from upstream (drift) and from the aerial insect community (malaise traps). On each occasion we also measured discharge in each of 12 experimental channels as well as the quantity of fine sediment entrained within the stream bed (hyporheic fines). The dataset being deposited contains the following elements: • Abundance records for discrete taxa found in samples of the: o Dry bed sediment - 2.5 kg of bed sediment removed and examined for any macroinvertebrates still persisting in the drying stream bed. o Re-wetted bed sediment – 2.5 kg of bed sediment removed and retained to identify invertebrates that emerge from the sediments on each sampling day (related article for experimental rehydration of dewatered sediments method description). o Benthos - Surber sample (330 µm mesh size) of 0.0225m2 area for 30 seconds. A Surber taken from upstream, middle and downstream thirds of the channel length on each occasion. o Hyperheos - 500ml of water extracted using 60ml syringe from standpipes set 10cm below stream bed surface. A sample taken from upstream, middle and downstream thirds of the channel length on each occasion. o Drift - Nets (330 µm mesh size) deployed for 24hrs at upstream end of each channel. o Aerial communities – Malaise traps deployed bankside for 5 days. • Stream discharge (m3s-1)– stream velocity measured with Valeport 801 Electromagnetic Flowmeter. • Mass of hyporheic fine sediment (gl-1) – dry mass of fine sediment extracted with the 500ml hyporheic sample. The work was supported by the Natural Environment Research Council (NE/X016706/1). Full details about this dataset can be found at https://doi.org/10.5285/0ffd647a-f5fc-457d-8ede-2cd5bf40f32b

Resource type

dataset

Resource locator

Unique resource identifier

code

https://catalogue.ceh.ac.uk/id/0ffd647a-f5fc-457d-8ede-2cd5bf40f32b

codeSpace

doi:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

inlandWaters

biota

Keywords

Keyword set

keyword value

Habitats and Biotopes

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

publication

effective date

2008-06-01

Geographic location

West bounding longitude

-2.187

East bounding longitude

-2.184

North bounding latitude

50.681

South bounding latitude

50.679

Temporal reference

Temporal extent

Begin position

2022-12-01

End position

2023-03-31

Dataset reference date

date type

publication

effective date

2024-03-07

date type

creation

effective date

2024-01-17

Frequency of update

Quality and validity

Lineage

All macroinvertebrates were identified and counted by experienced freshwater taxonomists in The Queen Mary University of London River Communities Group. Hyporheic fine sediments were oven-dried at 60°C for 48 hours before being weighed on a Sartorius balance (to 0.001 g precision).

Conformity

Conformity report

specification

title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

reference date

date type

publication

effective date

2010-12-08

degree

explanation

Data format

name of format

Comma-separated values (CSV)

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Embargoed

Constraint set

Limitations on public access

Constraint set

Limitations on public access

If you reuse this data, you should cite: Murphy, J.F., Layer-Dobra, K., Mathers, K., Jones, J.I., Wood, P.J. (2024). Freshwater macroinvertebrate community data, stream discharge, and hyporheic fine sediment mass in experimental channels recovering over a four-month period from a prior drought in 2022. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/0ffd647a-f5fc-457d-8ede-2cd5bf40f32b

Responsible organisations

Responsible party

organisation name

Queen Mary University of London

email address

j.f.murphy@qmul.ac.uk

web address

https://orcid.org/0000-0003-2102-7686

description: ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers.

function: information