University of Worcester Worcester Research and Publications
 
  USER PANEL:
  ABOUT THE COLLECTION:
  CONTACT DETAILS:

Benthic and Hyporheic Macroinvertebrate Distribution Within the Heads and Tails of Riffles During Baseflow Conditions

Mathers, K.L. and Hill, Matthew and Wood, P.J. (2017) Benthic and Hyporheic Macroinvertebrate Distribution Within the Heads and Tails of Riffles During Baseflow Conditions. Hydrobiologia, 794 (1). pp. 17-30. ISSN 0018-8158 Online: 1573-5117

[img] Text
Mathers et al_benthic_hyp_HYDR_R2.docx - Accepted Version
Restricted to Repository staff only

Download (88kB) | Request a copy
[img] Text
Mathers, Kate and Hill, Matthew and Wood, Paul (2016) Benthic and hyporheic macroinvertebrate distribution within the heads and tails of riffles during baseflow conditions.pdf - Accepted Version
Restricted to Repository staff only

Download (265kB) | Request a copy
[img]
Preview
Text
art%3A10.1007%2Fs10750-017-3092-8.pdf - Published Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (658kB) | Preview

Abstract

The distribution of lotic fauna is widely acknowledged to be patchy reflecting the interaction between biotic and abiotic factors. In an in-situ field study, the distribution of benthic and hyporheic invertebrates in the heads (downwelling) and tails (upwelling) of riffles were examined during stable baseflow conditions. Riffle heads were found to contain a greater proportion of interstitial fine sediment than riffle tails. Significant differences in the composition of benthic communities were associated with the amount of fine sediment. Riffle tail habitats supported a greater abundance and diversity of invertebrates sensitive to fine sediment such as EPT taxa. Shredder feeding taxa were more abundant in riffle heads suggesting greater availability of organic matter. In contrast, no significant differences in the hyporheic community were recorded between riffle heads and tails. We hypothesise that clogging of hyporheic interstices with fine sediments may have resulted in the homogenization of the invertebrate community by limiting faunal movement into the hyporheic zone at both the riffle head and tail. The results suggest that vertical hydrological exchange significantly influences the distribution of fine sediment and macroinvertebrate communities at the riffle scale.

Item Type: Article
Additional Information:

The full-text can be accessed via the Official URL.

Uncontrolled Keywords: distribution of lotic fauna, hyporheic invertebrates, riffle heads, benthic communities, EPT taxa, hyporheic community, benthos, hyporheos, sedimentation, connectivity, hydrological exchange
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
G Geography. Anthropology. Recreation > GB Physical geography
Q Science > Q Science (General)
Q Science > QL Zoology
Divisions: Academic Departments > Institute of Science and the Environment
Related URLs:
Copyright Info: Open Access article
Depositing User: Matthew Hill
Date Deposited: 09 Dec 2016 09:25
Last Modified: 26 Jun 2017 14:14
URI: https://eprints.worc.ac.uk/id/eprint/5145

Actions (login required)

View Item View Item
 
     
Worcester Research and Publications is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.