Limnology of Lake Waikaremoana with special reference to littoral and pelagic primary producers

Howard‐Williams, Clive; Law, K. M.; Vincent, Connie L.; Davies, J. M.; Vincent, Warwick F.

doi:10.1080/00288330.1986.9516179

Cited by 13 publications

(10 citation statements)

References 18 publications

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“…Howard-Williams et al (1986) suggested that although this zone occupied only a narrow band around the edge of Lake Waikaremoana, littoral primary production contributed 19% to whole-lake production. Mylechreest (1978Mylechreest ( ,1979 suggested that the extent of the littoral zone was a major factor determining the carrying capacity of Lake Waikaremoana's trout fishery.…”

Section: Comparison Of Littoral and Pelagic Secondary Productionmentioning

confidence: 99%

“…The role of the littoral zone in lake ecosystem functioning is likely to be particularly important in large oligotrophic lakes where pelagic primary production is low and littoral zones extend to considerable depths (Howard-Williams et al 1986;Wetzel 1990;Kairesalo et al 1992;Stross et al 1995;Schwarz et al 1996). As the interface between land and lake, littoral zones are also the first region in lakes to suffer the impacts of human activity.…”

Section: Introductionmentioning

confidence: 99%

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Macroinvertebrate distribution in the littoral zone of Lake Coleridge, South Island, New Zealand—effects of habitat stability, wind exposure, and macrophytes

James

Weatherhead

Stanger

et al. 1998

New Zealand Journal of Marine and Freshwater Research

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The macroinvertebrate community was surveyed at eight littoral zone sites in Lake Coleridge, New Zealand. Sites covered a range of conditions including exposure to prevailing winds, shore-line topography, and proximity to river inputs-which are a major source of suspended sediment to the lake. The littoral zone contained an abundant and diverse macroinvertebrate fauna (47 taxa). Three communities were identified: a shallowwater community inhabiting the wave-break zone, dominated by Trichoptera and chironomid larvae; a middle-zone community associated with macrophyte beds, with high macroinvertebrate abundance and dominated by gastropods and oligochaetes; and a community in fine sediments below the macrophytes dominated by oligochaetes. The depth distribution of these communities was related to substrate, macrophyte abundance, and shore-line profile. Superimposed on this pattern were the effects of hillside slope and exposure to prevailing north-west winds. Greatest abundance was associated with macrophytes on stable shores at 4-7.5 m depth, i.e., below the effective wavebase depth. Sediment deposition had only a localised direct effect close to where river water enters the lake. Indirect effects were mediated through the effects of suspended solids on water clarity, bottom limits, and production of macrophytes and periphyton. Estimates of the proportion of littoral macroinvertebrate biomass to whole-lake zooplankton biomass was 10:1 and for production was 1.3:1, indicating the potential importance of the littoral zone to whole-lake production.

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Section: Comparison Of Littoral and Pelagic Secondary Productionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Macroinvertebrate distribution in the littoral zone of Lake Coleridge, South Island, New Zealand—effects of habitat stability, wind exposure, and macrophytes

James

Weatherhead

Stanger

et al. 1998

New Zealand Journal of Marine and Freshwater Research

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“…The first estimate of the proportional contribution of macrophytes to total primary production (phytoplankton plus macrophytes) of a New Zealand lake was made in Lake Waikaremoana where littoral macrjophytes were found to contribute significantly to total primary production (Howard- Williams et al 1986), although in a shallow coastal lagoon their contribution was relatively small and changed from year to year .…”

Section: Species Associations Production and Biomassmentioning

confidence: 99%

New Zealand lakes research, 1967–91

Burns

1991

New Zealand Journal of Marine and Freshwater Research

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Research on New Zealand lakes over the past 25 years has focused mainly on eutrophication, measures of water quality, patterns, processes and production in plankton communities, and the spread and growth of submerged adventive macrophytes. Compared with most northern temperate lakes many New Zealand lakes show: low levels of inorganic nitrogen (N) and frequent N-limitation of phytoplankton growth; diffuse, rather than point source, nutrient inflows; a great diversity of optical properties; unusual and often variable timing of plankton growth (attributed to the pervasive influence of New Zealand's oceanic climate); low productivity and biomass of zooplankton, which appear to be limited by food rather than predators; and sensitivity to invasion by adventive macrophytes. Notable research develop-ments include improved methods of measuring nutrients, empirical predictive models that relate indices of eutrophication to nutrient loading, and significant advancements in methods of quantifying and measuring water colour and clarity.

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“…Periphyton biomass and productivity were clearly higher than those of phytoplankton (per unit area) in the littoral zone, though less than 2% of phytoplankton values on a whole-lake scale because they are limited to a relatively small area of the lake. Howard-Williams et al (1986) estimated the annual production of macrophytes in Lake Taupo as 4% of that of the phytoplankton. Our estimates of epilithic production are confined to the summer period.…”

Section: Biomass and Productivitymentioning

confidence: 99%

Seasonal dynamics of epilithic periphyton in oligotrophic Lake Taupo, New Zealand

Hawes

Smith

1994

New Zealand Journal of Marine and Freshwater Research

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The biomass and species composition of epilithic periphyton in oligotrophic Lake Taupo was measured over a full year. Measurements of photosynthetic carbon uptake were made during summer and early winter. The lake supported a high biomass of epilithic periphyton throughout the year, averaging 100-600 mg m -2 over the 0-35 m water depth and peaking in early summer. Periphyton extended to at least 40 m depth. Depthintegrated carbon fixation rates of 242-362 mg m -2 h -1 were measured. Periphyton constituted more than 90% of the algal biomass and carbon fixation within the littoral zone, but less than 2% of production on a whole-lake basis. Based on taxonomic composition, periphyton could be divided into three zones, surface (0-2 m), mid water (2-20 m) and deep (> 20 m). The diatoms Aulacosira granulata, Rhopalodia novae zealandiae, Epithemia sorex, and Fragilaria spp. dominated the deep assemblage, Tolypothrix tenuis and Mastogloia elliptica the mid water, and Scytonema, Dichothrix, and filamentous chlorophytes the shallow zone. Indicator pigments, analysed by high-performance liquid chromatography, confirmed these groupings. Biomassspecific rates of photosynthesis were low in shallow water (assimilation number 1 at 1 m depth) and at depths of 20 m and below, photosynthesis was light-limited. We hypothesise that the periphyton community was slow-growing and that the high biomass seen at all depths resulted from gradual accrual with low rates of loss.

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Limnology of Lake Waikaremoana with special reference to littoral and pelagic primary producers

Cited by 13 publications

References 18 publications

Macroinvertebrate distribution in the littoral zone of Lake Coleridge, South Island, New Zealand—effects of habitat stability, wind exposure, and macrophytes

Macroinvertebrate distribution in the littoral zone of Lake Coleridge, South Island, New Zealand—effects of habitat stability, wind exposure, and macrophytes

New Zealand lakes research, 1967–91

Seasonal dynamics of epilithic periphyton in oligotrophic Lake Taupo, New Zealand

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