Catchment source contributions to the sediment-bound organic matter degrading salmonid spawning gravels in a lowland river, southern England

被引：48

作者：

Collins, A. L. ^{[1
,2
]}

Williams, L. J. ^{[1
]}

Zhang, Y. S. ^{[1
]}

Marius, M. ^{[2
]}

Dungait, J. A. J. ^{[3
]}

Smallman, D. J. ^{[2
]}

Dixon, E. R. ^{[3
]}

Stringfellow, A. ^{[2
]}

Sear, D. A. ^{[2
]}

Jones, J. I. ^{[4
]}

Naden, P. S. ^{[5
]}

机构：

[1] Agr Dev & Advisory Serv, Wolverhampton WV9 5AP, W Midlands, England

[2] Univ Southampton, Southampton SO17 1BJ, Hants, England

[3] Rothamsted Res North Wyke, Dept Sustainable Syst & Grassland Sci, Okehampton EX20 2SB, Devon, England

[4] Queen Mary Univ London, Sch Biol & Chem Sci, London E1 4NS, England

[5] CEH Wallingford, Wallingford OX10 8BB, Oxon, England

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2013年 / 456卷

基金：

英国生物技术与生命科学研究理事会; 英国工程与自然科学研究理事会;

关键词：

Sediment-bound organic matter; Fingerprinting; Carbon and nitrogen stable isotopes; Near infra-red reflectance spectroscopy; Spawning gravels; Septic tanks; NEAR-INFRARED SPECTROSCOPY; TEMPERATE GRASSLAND SOIL; SUSPENDED SEDIMENT; ATLANTIC SALMON; STABLE CARBON; BROWN TROUT; NITROGEN; DELTA-N-15; MANAGEMENT; POLLUTION;

D O I：

10.1016/j.scitotenv.2013.03.093

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The ingress of particulate material into freshwater spawning substrates is thought to be contributing to the declining success of salmonids reported over recent years for many rivers. Accordingly, the need for reliable information on the key sources of the sediment problem has progressed up the management agenda. Whilst previous work has focussed on apportioning the sources of minerogenic fine sediment degrading spawning habitats, there remains a need to develop procedures for generating corresponding information for the potentially harmful sediment-bound organic matter that represents an overlooked component of interstitial sediment. A source tracing procedure based on composite signatures combining bulk stable C-13 and N-15 isotope values with organic molecular structures detected using near infrared (NIR) reflectance spectroscopy was therefore used to assess the primary sources of sediment-bound organic matter sampled from artificial spawning redds. Composite signatures were selected using a combination of the Kruskal-Wallis H-test, principal component analysis and GA-driven discriminant function analysis. Interstitial sediment samples were collected using time-integrating basket traps which were inserted at the start of the salmonid spawning season and extracted in conjunction with critical phases of fish development (eyeing, hatch, emergence, late spawning). Over the duration of these four basket extractions, the overall relative frequency-weighted average median (+/- 95% confidence limits) source contributions to the interstitial sediment-bound organic matter were estimated to be in the order: instream decaying vegetation (39 +/- <1%; full range 0-77%); damaged road verges (28 +/- <1%; full range 0-77%); septic tanks (22 +/- <1%; full range 0-50%), and; farm yard manures/slurries (11 +/- <1%; full range 0-61%). The reported procedure provides a promising basis for understanding the key sources of interstitial sediment-bound organic matter and can be applied alongside apportionment for the minerogenic component of fine-grained sediment ingressing the benthos. The findings suggest that human septic waste contributes to the interstitial fines ingressing salmonid spawning habitat in the study area. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：181 / 195

页数：15

共 7 条

[1] Sources of sediment-bound organic matter infiltrating spawning gravels during the incubation and emergence life stages of salmonids
Collins, A. L.
Williams, L. J.
Zhang, Y. S.
Marius, M.
Dungait, J. A. J.
Smallman, D. J.
Dixon, E. R.
Stringfellow, A.
Sear, D. A.
Jones, J. I.
Naden, P. S.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2014, 196 : 76 - 93
[2] A reconnaissance survey of the source of interstitial fine sediment recovered from salmonid spawning gravels in England and Wales
D.E. Walling
A.L. Collins
G. K. McMellin
Hydrobiologia, 2003, 497 : 91 - 108
[3] A reconnaissance survey of the source of interstitial fine sediment recovered from salmonid spawning gravels in England and Wales
Walling, DE
Collins, AL
McMellin, GK
HYDROBIOLOGIA, 2003, 497 (1-3) : 91 - 108
[4] Using dissolved organic matter fluorescence to identify the provenance of nutrients in a lowland catchment; the River Thames, England
Old, G. H.
Naden, P. S.
Harman, M.
Bowes, M. J.
Roberts, C.
Scarlett, P. M.
Nicholls, D. J. E.
Armstrong, L. K.
Wickham, H. D.
Read, D. S.
SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 653 : 1240 - 1252
[5] Mitigating sediment delivery to watercourses during the salmonid spawning season: potential effects of delayed wheelings and cover crops in a chalk catchment, southern England
Collins, Adrian L.
Davison, Paul S.
INTERNATIONAL JOURNAL OF RIVER BASIN MANAGEMENT, 2009, 7 (03) : 209 - 220
[6] Sediment source tracing in a lowland agricultural catchment in southern England using a modified procedure combining statistical analysis and numerical modelling
Collins, A. L.
Zhang, Y.
McChesney, D.
Walling, D. E.
Haley, S. M.
Smith, P.
SCIENCE OF THE TOTAL ENVIRONMENT, 2012, 414 : 301 - 317
[7] Fingerprinting source contributions to bed sediment-associated organic matter in the headwater subcatchments of the River Itchen SAC, Hampshire, UK
Zhang, Y.
Collins, A. L.
McMillan, S.
Dixon, E. R.
Cancer-Berroya, E.
Poiret, C.
Stringfellow, A.
RIVER RESEARCH AND APPLICATIONS, 2017, 33 (10) : 1515 - 1526

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