Lakeshore and littoral physical habitat structure in a national lakes assessment

Kaufmann, Philip R.; Peck, David V.; Paulsen, Steven G.; Seeliger, Curt W.; Hughes, Robert M.; Whittier, Thomas R.; Kamman, Neil C.

doi:10.1080/10402381.2014.906524

Cited by 57 publications

(61 citation statements)

References 45 publications

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“…USEPA (2009) emphasized that lakes with poor cover and complexity of riparian and littoral habitat are approximately 3 times more likely to have poor biological integrity, likely because of habitat simplification and reduced riparian buffer protection from upland stressors. Human activities can alter environmental quality, reducing plant cover and physical habitat complexity in reservoir littoral zones (Molozzi et al 2011, Kaufmann et al 2014). According to Benedito-Cecílio et al (1997), habitat modification directly influences such fish biological functions as diet, reproduction, and growth.…”

Section: Discussionmentioning

confidence: 99%

“…Some environmental variables are particularly associated with fish assemblages, such as depth (Prchalová et al 2008), availability of littoral zone food and shelter (Vidotto & Carvalho 2007), presence of aquatic vegetation (Pelicice et al 2005, Abes & Agostinho 2001, dissolved oxygen, temperature, pH, (Castro et al 2003, Araú jo et al 2009), transparency (Petry et al 2003) and conductivity (Rodríguez & Lewis 1997). Distribution and abundance patterns of fish species in reservoirs can also be affected by other physical habitat attributes, such as type and size of substrate, presence of macrophytes or submerged vegetation, and type and integrity of riparian vegetation (Kaufmann et al 2014). …”

Section: Discussionmentioning

confidence: 99%

“…We used the RDis_IX index of Kaufmann et al (2014) to calculate the LDI. We incorporated human disturbances in both riparian and drawdown areas along with horizontal drawdown distance (Table1) in the calculation of RDis_IX (Kaufmann, unpublished data).…”

Section: Human Disturbancementioning

confidence: 99%

“…In urban reservoirs, for example, there are intensive human modifications in adjacent areas resulting from roads, housing, and commercial/industrial development . Physical habitat modifications directly influence the composition and structure of aquatic communities (Kaufmann et al 2014), and alter organism diets, reproduction, and growth (Benedito-Cecílio et al 1997). As a result of all these influences, and because of the dam itself, aquatic communities undergo changes (Gehrke et al 2002, Agostinho et al 2008) that favor biological invasion (Rocha et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Information about land use and cover, littoral zone physical and chemical habitat characteristics, and aquatic assemblage structure facilitate ecological condition assessments and actions for rehabilitating and conserving aquatic ecosystems , Kaufmann et al 2014). This approach is particularly important in river basins with hydroelectric power plants (Macedo et al 2012).…”

Section: Introductionmentioning

confidence: 99%

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Ecological assessment of a southeastern Brazil reservoir

et al. 2015

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Reservoirs are artificial ecosystems with multiple functions having direct and indirect benefits to humans; however, they also cause ecological changes and influence the composition and structure of aquatic biota. Our objectives were to: (1) assess the environmental condition of Nova Ponte Reservoir, Minas Gerais state, southeastern Brazil; and (2) determine how the aquatic biota respond to disturbances. A total of 40 sites in the littoral zone of the reservoir were sampled to characterize physical and chemical habitat, land use, and benthic macroinvertebrate and fish assemblages. The predominant type of land cover near the reservoir was natural vegetation. A total of 29 fish species and 39 macroinvertebrate taxa were collected, including eight alien species. Most sites had intermediate levels of human disturbance, however, high levels of degradation were associated with high proportions of alien species. Disturbances at multiple scales may alter natural patterns and processes, leading to environmental changes and damaging biological communities. Our results reinforce the importance of assessing reservoir ecological conditions at several scales. The study of land use, littoral zone physical habitat characteristics, water quality, and assemblage structure set the ground for proposing actions to rehabilitate and conserve aquatic ecosystems. Keywords: reservoirs, water quality, bioindicators, physical habitat, environmental quality.MARTINS, I., SANCHES, B., KAUFMANN, P.R., HUGHES, R.M., SANTOS, G.B., MOLOZZI, J., CALLISTO, M. Avaliação Ecológica de um reservatório no sudeste do Brasil.http://dx.doi.org/10.1590/1676-06032015006114Resumo: Reservató rios sã o ecossistemas artificiais com mú ltiplas funçõ es e que oferecem benefícios diretos e indiretos ao homem; no entanto, também causam mudanças ecoló gicas e influenciam a composiçã o e estrutura da biota aquá tica. Os objetivos deste estudo foram: (1) avaliar a condição ambiental do reservató rio de Nova Ponte, Estado de Minas Gerais, sudeste do Brasil; e (2) verificar se a biota aquá tica responde aos distú rbios. No total, 40 sítios amostrais na regiã o litorâ nea do reservató rio foram amostrados para caracterizar os habitats físicos e químicos, cobertura e uso do solo, assembleias de macroinvertebrados e peixes. Vegetaçã o natural de cerrado foi o tipo predominante de cobertura do solo no entorno do reservató rio. 29 espécies de peixes e 39 taxa de macroinvertebrados bentô nicos foram coletadas, incluindo oito espécies exó ticas. A maioria dos sítios amostrais possui níveis intermediá rios de distú rbio antró pico, porém o aumento de alteraçõ es antró picas foi associado ao aumento do nú mero e abundâ ncia de espécies exó ticas. Distú rbios em mú ltiplas escalas podem alterar os padrõ es e processos naturais, levando a mudanças ambientais e nas comunidades bioló gicas. Nossos resultados reforçam a importâ ncia de avaliar as condiçõ es ecoló gicas do reservató rio em vá rias escalas. O estudo do uso e cobertura do solo, características de habitats físic...

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Human Disturbancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ecological assessment of a southeastern Brazil reservoir

et al. 2015

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An index of human alteration of lake shore morphology

Miler

Porst

McGoff

et al. 2014

Aquatic Conservation

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ABSTRACT1. Morphological degradation constitutes one of the most severe threats to the ecological integrity of lakes. The development of biotic assessment methods for human lake shore alterations using littoral macroinvertebrates requires quantification of the degree of degradation by a stressor index and is complicated through simultaneous physical pressures that alter natural habitat structure.2. The Lake Habitat Survey (LHS) method and macroinvertebrate sampling were used to produce a pan-European dataset of morphological lake shore degradation and macroinvertebrate densities covering 51 lakes in seven countries and across four geographical regions -northern, western, southern and central Europe.3. Lake Habitat Survey parameters that differed significantly among three categories of morphological pressure were combined to develop the stressor index components 'Number of habitats', 'Habitat diversity', 'Total percentage volume inhabited by macrophytes', 'Sum of macrophyte types', 'Sum of vegetation cover types', 'Sum of coarse woody debris/roots/overhanging vegetation', 'Pressure index' (number of human disturbance sources) and 'Natural/artificial dominant land cover type '. 4. Stressor index components were tested for cross-correlations and for differences among pressure levels. The final composition of the stressor index was optimized for the four studied geographical regions in Europe. The resulting stressor index correlated more strongly with macroinvertebrate metrics than simpler site-specific LHS parameters or the HabQA index developed previously in one lake in north-western Europe.5. The stressor index developed provides deeper insight into the morphological pressures that affect littoral invertebrate communities. The results also support the use of LHS to quantify morphological stressors at sampling site level, which can ease developing other multimetric bioassessment methods.6. The stressor index offers the possibility for wide and regional specific application to assess hydromorphological pressures on lakes to assist conservation planning and management and further global efforts to develop and test biotic assessment methods for lakes.

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Lakeshore residential development as a driver of aquatic habitat and littoral fish communities: A cross‐system study

Perales

Zanden

2023

Ecological Applications

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Lakeshore riparian habitats have undergone intensive residential development in many parts of the world. Lakeshore residential development (LRD) is associated with aquatic habitat loss/alteration, including altered macrophyte communities and reduced coarse woody habitat. Yet habitat‐mediated and other generalized effects of LRD on lake biotic communities are not well understood. We used two approaches to examine the relationships among LRD, habitat, and fish community in a set of 57 northern Wisconsin lakes. First, we examined how LRD affected aquatic habitat using mixed linear effects models. Second, we evaluated how LRD affected fish abundance and community structure at both whole‐lake and site‐level spatial scales using generalized linear mixed‐effects models. We found that LRD did not have a significant relationship with the total abundance (all species combined) of fish at either scale. However, there were significant species‐specific responses to LRD at the whole‐lake scale. Species abundances varied across the LRD gradient, with bluegill (Lepomis macrochirus) and mimic shiners (Notropis volucellus) responding positively along the gradient and walleye (Sander vitreus) having the most negative response. We also quantified site‐level habitat associations for each fish species. We found that habitat associations did not inform a species' overall response to LRD, as illustrated by species with similar responses to LRD having vastly different habitat associations. Finally, even with the inclusion of littoral habitat information in models, LRD still had significant effects on species abundances, reflecting a role of LRD in shaping littoral fish communities independent of our measure of littoral habitat alteration. Our results indicated that LRD altered littoral fish communities at the whole‐lake scale through both habitat and non‐habitat‐mediated drivers.

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Lakeshore and littoral physical habitat structure in a national lakes assessment

Cited by 57 publications

References 45 publications

Ecological assessment of a southeastern Brazil reservoir

Ecological assessment of a southeastern Brazil reservoir

An index of human alteration of lake shore morphology

Lakeshore residential development as a driver of aquatic habitat and littoral fish communities: A cross‐system study

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