Lake Vechten: aspects of its morphometry, climate, hydrology and physico-chemical characteristics

Steenbergen, C. L. M.; Verdouw, H.

doi:10.1007/bf00044473

Cited by 56 publications

(41 citation statements)

References 18 publications

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“…The low DI-TP concentrations for both lakes (Fig. 5) reflect the fact that these lakes are mainly fed by precipitation and by nutrient-poor groundwater (Hordijk, 1993;Steenbergen & Verdouw, 1982;van Donk, 1983) and are not influenced by river activity. Lake Plas Vechten is an isolated seepage lake with neither an outlet nor an inlet.…”

Section: Discussionmentioning

confidence: 97%

“…Best (1982) described a decline in macrophytes in Lake Plas Vechten in the period of 1963 to 1980 and also showed that in the summer periods from 1978 onwards the lake's catchment was used as farm land, fertilized by artificial fertilizer and cattle manure. Steenbergen and Verdouw (1982) concluded that phosphorus release from the sediments and turbulent eddy flows play a significant role for the transport of nutrients from the hypo-to the epilimnion in this lake. After 1980, when nutrient input increased and consequently led to enhanced primary production, this may have played a significant role in accelerating eutrophication in Lake Plas Vechten.…”

Section: Discussionmentioning

confidence: 97%

“…Lake Plas Vechten is an isolated seepage lake with neither an outlet nor an inlet. However, the groundwater discharge into the lake is mainly horizontal and nutrient rich, which is likely a consequence of the agricultural activities in the region (Steenbergen & Verdouw, 1982). Vertical groundwater discharge is negligible since the lake bottom is artificially sealed with a clay layer that impedes vertical water movement.…”

Section: Discussionmentioning

confidence: 99%

“…Lakes Maarsseveen, Plas Vechten, and Fort Vechten are in the vicinity of the town of Utrecht. Lakes Maarsseveen and Plas Vechten are both artificial lakes created in 1965 and 1941, respectively, by excavations of sand in a peat-bog area (Steenbergen & Verdouw, 1982;van Donk, 1983). These lakes are currently mesotrophic, having no direct contact with agricultural land and are fed solely by groundwater and precipitation.…”

Section: Study Sitesmentioning

confidence: 99%

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Eutrophication of moderately deep Dutch lakes during the past century: flaws in the expectations of water management?

et al. 2009

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We studied the trophic development of the past 30-100 years in eight moderately deep Dutch lakes based on their sedimentary fossil diatom assemblages. The dominant diatoms indicating meso-to eutrophic conditions were Aulacoseira subarctica, Cyclotella ocellata, C. cyclopuncta, C. meneghiniana, Puncticulata bodanica, Aulacoseira granulata, Cyclostephanos dubius, C. invisitatus, Stephanodiscus hantzschii, S. medius, and S. parvus. Ordination of diatom data separated the lakes into four groups according to their total phosphorus concentrations (TP), water supply, water management, and origin. The first group consists of dike-breach lakes, which were in stable eutrophic to hypertrophic conditions throughout the past century with diatom-inferred TP (DI-TP) concentrations of between 70 and 300 lg l -1 . The main factors influencing these dike-breach lakes are river management, ground water supply of riverine origin, and local land use. The second group are artificial lakes of fluctuating oligo-to mesotrophic conditions and DI-TP concentrations of 10-30 lg l -1 . Only one of the artificial lakes showed a DI-TP increase due to changes in catchment agricultural practice. A third group includes an artificial moat and an inland dike-breach lake with DI-TP concentrations of 50-100 lg l -1 . The fourth group contains an individual dike-breach lake with stable mesotrophic conditions of 50 lg l -1 throughout the past century. Rather than showing a regional pattern, the studied lakes behave very individualistically with regard to their trophic history, reflecting changes in the local hydrology and in their nutrient sources.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Study Sitesmentioning

confidence: 99%

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Eutrophication of moderately deep Dutch lakes during the past century: flaws in the expectations of water management?

et al. 2009

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“…The mean K, for the entire water column and secchi disc readings for Keyhole Lake are similar to late July values for Lake Schrader, Alaska ( Kd=0.59 and secchi disc=4 m, Hobbie, 1962) and to coefficients of some European north temperate lakes (e.g., Lake Esthwaite, Kd=0.59 and secchi disc=3.7 m, Macan, 1970;Lake Hampen, K,=0.60 and secchi disc=3.7 m, Sand-Jensen and Ssndergaard, 1981;Lake Vechten, Kd=0.60 and secchi disc=3.5 m, Steenberger and Verdouw, 1982). Lake Schrader is an oligotrophic lake (summer chlorophyll a=0.98 mgm-3, while Lakes Esthwaite, Hampen and Vechten are mesotrophic (summer chlorophyll a > 2 mgm3).…”

Section: Discussionmentioning

confidence: 99%

The Underwater Photic Environment of a Small Arctic Lake

Heinermann¹,

Johnson²,

Ali³

1990

ARCTIC

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ABSTRACT. Theunderwater light field inasmallarcticlakeon Victoria Island,Northwest Territories, was examined. Downward radiance was found to be bimodal, with transmission peaks at 480 and 640 nanometres (nm, or 10-9m). Upward radiance was similar near the surface, with peaks at 480 and 620 nm, but became unimodal with depth and shifted to 580 nm near the bottom. Diurnal variation in the underwater downward and upward irradiance of PAR (photosynthetically active radiation) was approximately two orders of magnitude. The spectral quality of light transmission also changed over this 24 hour period. Unimodal transmission of red light occurred in the early morning (1:OO and 5:OO) and late evening (22:00), while bimodal transmission of blue-green and red light was observed during the day (900-1730). Kd(z,), the vertical attenuation coefficient for downward irradiance at the midpoint of the euphotic zone, was relatively insensitive to changes in solar elevation. Diurnal variation in the reflectance of PAR differed from that predicted by previous simulation models, while the inverse relationship between reflectance and the absorption coefficient was in agreement with these same models. Gilvin, humic material-dissolved iron complexes, algal fucoxanthin, chlorophyll a and tripton all contribute to the attenuation of light and are responsible for the unique underwater spectral transmission in Keyhole Lake. Key words: arctic, limnology, underwater light, diurnal variation, spectral quality, irradiance, radiance RESUME. L'environnement photique sous-marin d'un petit lac arctique sur l'Isle Victoria, Territoires du Nord-Ouest a ete examine. La radiance descendante a eu un spectre bimodal avec deux pics de transmission B 480 et a 640 nanometres (nm ou lt9m). La radiance ascendante a et6 semblable pres de la surface avec les mCmes deux pics (480 et 620 nm) mais avec une augmentation de la profondeur la transmission est devenue unimodale et a et6 deplace pres du fond vers 580 nm. La variation quotadienne de l'irradiance sous-marine descendante et ascendante de la PAR (la radiation disponsible pour la photosynthese) a et6 a peu pres deux ordres de grandeur. La qualite spectrale de la transmission lumineuse a egalement change pendant cette periode de 24 heures. Une transmission unimodale de la lumiere rouge a eu lieu tbt le matin (1:OO et 500) et tard le soir (2200) tandis qu'une transmission bimodale de la lumiere bleue-verte et rouge a et6 observe durant le jour (900-1730). Kd(z,), le coefficient vertical d'attenuation de l'irradiance descendante au milieu de la zone photique, n'a pas vraiement change avec des changements de l'6llevation solaire. La variation diurne de la reflexion de la PAR s'est differ6 de celle predit par des modeles de simulation precedents tandis que le rapport inverse entre la reflexion et la coefficient d'absorption a et6 en accord avec ces mCmes mod6les.l.a matiere organique dissoute, les composes de matiere organique -fer dissout, la fucoxanthine des algues, le chorophyllea et le tripton contribuent tous...

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Optical Limnology of a Hypertrophic Gravel‐Pit Lake

Cobelas¹

1991

Intl Review of Hydrobiology

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The underwater light field has been studied in a hypertrophic, gravel-pit lake close to Madrid (Spain) during a one year cycle. Both the inherent and the apparent properties of the underwater light field have been weekly surveyed. As theoretically expected, there is a link between inherent and apparent properties in this lake. Evidence is given suggesting that a seasonal trend in the underwater light field seems to occur. The main factor attenuat.ing light in the vertical column is phytoplankton chlorophyll "a" but humic substances also appear to play an importtant role in light attenuation.

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Lake Vechten: aspects of its morphometry, climate, hydrology and physico-chemical characteristics

Cited by 56 publications

References 18 publications

Eutrophication of moderately deep Dutch lakes during the past century: flaws in the expectations of water management?

Eutrophication of moderately deep Dutch lakes during the past century: flaws in the expectations of water management?

The Underwater Photic Environment of a Small Arctic Lake

Optical Limnology of a Hypertrophic Gravel‐Pit Lake

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