The comparative limnology of some New Zealand lakes

Jolly, V. H.

doi:10.1080/00288330.1968.9515236

Cited by 82 publications

(89 citation statements)

References 7 publications

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“…Nutrient limitation and predictive models A major finding during the 1960s and early 1970s was that, by world standards, New Zealand lakes are generally low in total nitrogen (e.g., Jolly 1968;McColl 1972). Levels of inorganic nitrogen (NO3-N) and ratios of nitrogen (N) and phosphorus (P) are generally much lower in New Zealand lakes than in most northern hemisphere lakes (White 1982(White ,1983Fig.…”

Section: -mentioning

confidence: 99%

“…During the: late 1950s and early 1960s, Jolly (1968) andFish (1969b, 1970 measured oxygen levels at depth in several Rotorua lakes providing, thereby, valuable baselines against which to assess subsequent changes. By comparing dissolved oxygen profiles of seven Rotorua lakes in 1970-71 with earlier data, McColl (1972) showed that oxygen had decreased in at least six of the seven lakes during the previous 15 years and that the decreases were correlated with increased agricultural, forestry, or urban development in the catchments (Fig.…”

Section: Measuring Nutrients and Nutrient Limitationmentioning

confidence: 99%

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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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Section: -mentioning

confidence: 99%

Section: Measuring Nutrients and Nutrient Limitationmentioning

confidence: 99%

New Zealand lakes research, 1967–91

Burns

1991

New Zealand Journal of Marine and Freshwater Research

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“…The chief texts consulted for identifications were those of Nordstedt (1888), Geitler (1932), Huber-Pestalozzi (1938, 1942. 1955. 1968.…”

Section: Methodsmentioning

confidence: 99%

“…b). Patrick & Reimer (1966), and Bourrelly (1966, 1968, 1970. Subjective estimations of abundance were made on a 1-5 scale (after Cassie 1974; Appendix I).…”

Section: Methodsmentioning

confidence: 99%

“…I), in relation to the algae present. Although Cunningham et al (1953), Cunningham (1957), Fish (1966), Jolly (1968), Stout (1975), and Green (l975a, b;1976) have all discussed limnological characteristics of these lakes, there has not been a detailed study of their algal populations. Relevant geographic and morphometric data ( Table 1) have been compiled by Irwin (1975).…”

Section: Introductionmentioning

confidence: 99%

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Observations on some chemical parameters and the phytoplankton of five west coast dune lakes in Northland, New Zealand

Cassie¹,

Freeman

1980

New Zealand Journal of Botany

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In a surver ~t different seasons fro!'l April 1976 to September 1977 an analysis of temperature, cond~cuvlty •. oxygen. ammoma, soluble phosphate. nitrate, and algal taxonomy was carned out m five west coast dune lakes in Northland. Chemical data indicated that the Pouto group lakes (Kanono. Waingata. and Parawanui) did not possess significantly higher nutrient levels than the Kai-iwi group (Taharoa, Waikere). Preserved phytoplankton from Lakes Kanono and Parawanui was mainly diatom-dominated, whereas that from Lakes Waingata, Taharoa, and Waikere consisted almost entirely of desmids and dinoflagellates. Evidence for increasing eutrophication in Lake Kanono came from the presence, though In small quantities, of the diatom Fragilaria crotonensis and blue-green algae including Microcystis aeruginosa and Aphanizomenon jlos-aquae. Some of the lesserknown algae are described and illustrated. Several new records have been made for the freshwater algal flora of New Zealand.

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