Benthic invertebrate and fish communities as indicators of morphological integrity in the Enz River (south-west Germany)

Jansen, Wolfgang; Böhmer, Jürgen; Kappus, B.; Beiter, T.; Breitinger, B.; Hock, C. W.

doi:10.1007/978-94-011-4164-2_27

Cited by 8 publications

(9 citation statements)

References 16 publications

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“…There is increasing recognition of the need to provide passage for a broader component of the aquatic community, including fish and invertebrates incapable of using traditional fishway designs (e.g. Fievet 2000;Jansen et al 2000;Stuart et al 2008). Ideally, passage facilities would accommodate as many species and life stages as possible to preserve meta-population structure and continuity of species clines (Gollmann et al 1998;Agostinho et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Development of Pacific lamprey fishways at a hydropower dam

Moser¹,

Keefer²,

Pennington³

et al. 2010

Fisheries Management and Ecology

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Traditional fishways do not accommodate the passage needs of all migrating species. In the northwestern United States, structures designed to aid adult Pacific lamprey, Lampetra tridentata (Gairdner), passage are critically needed. The structures described here were fabricated in modular units and installed at Bonneville Dam on the Columbia River (235 km). They featured a series of aluminium ramps interspersed with rest boxes that prevented lamprey from moving back downstream. The effects of various design changes and structure operation (water volume delivered) were assessed using lamprey counts and passive integrated transponder detections. Up to 40% of the lamprey entered the structures and 90-100% of these passed through to the exit. Lowering water volume pumped to the structures had little effect on lamprey performance, but passage improved when a 3.8-m-long, steep (40°) ramp was replaced with two, 1.4-m-long, 45°ramps. Pacific lamprey ascended the 8-to 9-m-high structures and entered the dam forebay in less than 1 h. The success of these prototypes was attributed to site selection and attention to lamprey-specific performance.

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Section: Introductionmentioning

confidence: 99%

Development of Pacific lamprey fishways at a hydropower dam

Moser¹,

Keefer²,

Pennington³

et al. 2010

Fisheries Management and Ecology

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“…Studies investigating the effects of hydromorphological alteration on biological communities have recently received wider consideration, nevertheless they are mostly focused on fish communities rather than on macroinvertebrates. Some studies demonstrate the effect of impoundments on macroinvertebrates (Jansen et al, 2000;Ogbeibu & Oribhabor, 2002;Ofenbo¨ck et al, 2004). Dams and weirs have the effect of altering flow conditions causing modification in trophic group ratios and functional groups.…”

mentioning

confidence: 97%

Preliminary testing of River Habitat Survey features for the aims of the WFD hydro-morphological assessment: an overview from the STAR Project

Erba

Buffagni

Holmes³

et al. 2006

Hydrobiologia

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The UK River Habitat Survey (RHS) method for the assessment of hydro-morphological features was applied within the EU STAR project simultaneously with the collection of biological data. A subset of data from 79 sites affected by hydro-morphological alteration and belonging to 7 different stream types was analysed. The different features recorded within RHS were evaluated separately considering the characteristics associated with banks, channel and riparian zone. Different scores were assigned to selected features representing hydro-morphological alteration and naturalness of habitat. The ability of the different compartments to represent the quality gradient of sites was investigated. In addition, the link between macroinvertebrate community and hydro-morphological data was investigated, directly relating indices and metrics calculated from taxa list collected in a site to scores assigned to the RHS features. The sections highly affected by morphological alteration were channel geometry and bank profile. Metrics showing the best correlation with the features selected were EPT taxa, ASPT and ICMi (Inter-calibration Common Metric index). Among the indices studied, the HQA score (Habitat Quality Assessment) apparently played the most important role in structuring biological communities and the lentic-lotic character of rivers was also important.

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“…indices based on physical, chemical and/or biological criteria (the Lake Bioassessment Integrity Index, LBII, incorporates 4 other indices within its calculation; Lewis et al, 2001), (viii) univariate data treatment such as regression, t-tests and ANOVA (Edgar, 1993;Schimmel et al, 1999;Kashian and Burton, 2000), and (ix) multivariate data treatment such as MDS, PCA and other similarity based statistics (Clements et al, 1992;Zamora-Muñoz and Alba-Tercedor, 1996;Jansen et al, 2000;Usseglio-Polatera et al, 2000;Rosenberg et al, 2002).…”

Section: Index Form and Functionalitymentioning

confidence: 99%