Short-term impact of deep sand extraction and ecosystem-based landscaping on macrozoobenthos and sediment characteristics

被引：17

作者：

de Jong, Maarten F. ^{[1
,2
]}

Baptist, Martin J. ^{[1
]}

Lindeboom, Han J. ^{[1
,2
]}

Hoekstra, Piet ^{[3
]}

机构：

[1] IMARES Wageningen UR Inst Marine Resources & Ecos, Dept Ecosyst, NL-1790 AD Den Burg, Netherlands

[2] Wageningen UR Dept Aquat Ecol & Water Qual Manage, NL-6700 AA Wageningen, Netherlands

[3] Univ Utrecht, Fac Geosci, Inst Marine & Atmospher Res Utrecht, NL-3508 TC Utrecht, Netherlands

来源：

MARINE POLLUTION BULLETIN | 2015年 / 97卷 / 1-2期

关键词：

Mining; Dredging; Sedimentation rate; Hydrodynamics; North Sea; POTENTIAL ENVIRONMENTAL-IMPACT; MARINE AGGREGATE EXTRACTION; EASTERN ENGLISH-CHANNEL; NORTH-SEA; BELGIAN PART; LARGE-SCALE; COMMUNITY STRUCTURE; GRAVEL EXTRACTION; ORGANIC-CARBON; DISTURBANCE;

D O I：

10.1016/j.marpolbul.2015.06.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We studied short-term changes in macrozoobenthos in a 20 m deep borrow pit. A boxcorer was used to sample macrobenthic infauna and a bottom sledge was used to sample macrobenthic epifauna. Sediment characteristics were determined from the boxcore samples, bed shear stress and near-bed salinity were estimated with a hydrodynamic model. Two years after the cessation of sand extraction, macrozoobenthic biomass increased fivefold in the deepest areas. Species composition changed significantly and white furrow shell (Abra alba) became abundant. Several sediment characteristics also changed significantly in the deepest parts. Macrozoobenthic species composition and biomass significantly correlated with time after cessation of sand extraction, sediment and hydrographical characteristics. Ecosystem-based landscaped sand bars were found to be effective in influencing sediment characteristics and macrozoobenthic assemblage. Significant changes in epifauna occurred in deepest parts in 2012 which coincided with the highest sedimentation rate. We recommend continuing monitoring to investigate medium and long-term impacts. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：294 / 308

页数：15

共 55 条

[41]

Stolk A., 2014, EVALUATIE MEP AANLEG, V2

[42]

Stolk A., 2009, EMSAGG EUR MAR SAND

[43] Environmental impact and recovery at two dumping sites for dredged material in the North Sea [J].

Stronkhorst, J ;

Ariese, F ;

van Hattum, B ;

Postma, JF ;

de Kluijver, M ;

Den Besten, PJ ;

Bergman, MJN ;

Daan, R ;

Murk, AJ ;

Vethaak, AD .

ENVIRONMENTAL POLLUTION, 2003, 124 (01) :17-31

[44]

Team R.C., 2013, R: a language and environment for statistical computing. R Found. Stat

[45] A seafloor crater in the German Bight and its effects on the benthos [J].

Thatje, S ;

Gerdes, D ;

Rachor, E .

HELGOLAND MARINE RESEARCH, 1999, 53 (01) :36-44

[46]

Tonnon P.K., 2013, BWN HK2 4 ECOMORPHOL, P1

[47] Benthic community response to sand dredging and shoreface nourishment in Dutch coastal waters [J].

Van Dalfsen, JA ;

Essink, K .

BURNING ISSUES OF NORTH SEA ECOLOGY, 2001, 31 (02) :329-332

[48] Differential response of macrozoobenthos to marine sand extraction in the North Sea and the Western Mediterranean [J].

van Dalfsen, JA ;

Essink, K ;

Madsen, HT ;

Birklund, J ;

Romero, J ;

Manzanera, M .

ICES JOURNAL OF MARINE SCIENCE, 2000, 57 (05) :1439-1445

[49]

van Dijk TAGP, 2012, ELSEV INSIGHT, P241, DOI 10.1016/B978-0-12-385140-6.00013-X

[50] Macrobenthic community structure of soft-bottom sediments at the Belgian Continental Shelf [J].

Van Hoey, G ;

Degraer, S ;

Vincx, M .

ESTUARINE COASTAL AND SHELF SCIENCE, 2004, 59 (04) :599-613

← 1 2 3 4 5 6 →