A Limnological Reconnaissance of the Lough Erne System, Ireland

Gibson, C. E.; Foy, R. H.; Fitzsimons, A. G.

doi:10.1002/iroh.19800650104

Cited by 26 publications

(17 citation statements)

References 10 publications

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“…This is in contrast to the situation in some Irish lakes of comparable size, e.g. L. Neagh (Gibson et al, 197 1) and L. Eme (Gibson et al, 1980) where only one or two species were dominant. The results of cell counts from water taken just below the surface are presented in Figs.…”

Section: Data From Cell Countscontrasting

confidence: 49%

A study of Lough Corrib, western Ireland and its phytoplankton

Mooney

1989

Hydrobiologia

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During 1980/1981, a twelve month study was carried out on the phytoplankton of Lough Corrib, a large freshwater lake in western Ireland. Cell counts indicated low phytoplankton productivity and this was reflected in low chlorophyll a values and high Secchi readings. Diatoms predominated in spring and were succeeded by blue-green algae in late summer. The spring diatom crop was apparently limited by either silicate or nitrogen. Mineral uptake by rooting macrophytes and benthic algae and phosphate recycling as a result of bottom sediment disturbance may be important elements in the nutrient cycling regime of the lake. Differences in morphology between the upper and lower basins of the lake are reflected, to some extent, in species composition and areal productivity.

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Section: Data From Cell Countscontrasting

confidence: 49%

A study of Lough Corrib, western Ireland and its phytoplankton

Mooney

1989

Hydrobiologia

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“…This. spatial separation occurred despite comparatively uniform silica and phosphorus concentrations throughout the Lough (Gibson et al, 1980). The failure of S. hantzschii to become universally dominant in the plankton of either lake must be due to some factor other than growth potential.…”

Section: Gonyaulax Tamarensismentioning

confidence: 94%

The influence of irradiance, photoperiod and temperature on the growth kinetics of three planktonic diatoms

Foy¹,

Gibson²

1993

European Journal of Phycology

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The influence of irradiance, photoperiod and temperature was determined for the growth kinetics of the diatoms Aulacoseira subarctica, Stephanodiscus astraea and Stephanodiscus hantzschii and the results compared with those of cyanobacteria. [rradiance and photoperiod relationships were qualitatively similar to those for cyanobacteria in that: (1) growth rate (K) was proportionally greater under short photoperiods, with ratios of K under continuous light to K under 3:21 light:dark (LD) cycles of 1-50, 1.80 and 2-96 for A. subaretiea, S. astraea and S. hantzschii respectively; (2) at subsaturating irradiances, K was proportional to irradiance and independent of temperature with a negligible predicted maintenance growth rate requirement. Apparent growth efficiencies (GE) at subsaturating irradiances were 0.26+0-03, 0.42+0.03 and 0-504-0.03 divisions mo1-1 m z for A. subarctica, S. astraea hantzschii, but higher temperatures resulted in minor increases in K. S. astraea growth rate peaked at 16 °C, declining sharply at higher temperatures. February to March in situ growth rates in Lough Neagh, mean temperature 4.3 °C, showed that the A. subarctica in situ K of 0.058 divisions day ~ was close to the laboratory K at 4 °C, but that S. astraea in situ K of 0.10I divisions day -~ was lower than the laboratory K at 4 °C.

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“…Lough Erne in Northwest Ireland is a system composed of two interconnected lakes. The limnology of the system has been well studied since the 1970s (Gibson et al 1980;Zhou et al 2000;Gibson et al 2003;Gibson et al 2005;Maguire and Gibson 2010). It is a relatively large, humic (DOC c. 12 mg l Chlorophyll a concentrations were reduced due to the presence of zebra mussels (Dreissena morpha) (Foy et al 1993;Maguire and Gibson 2010) since the late 1990s (Rosell et al 1998).…”

Section: Study Sitementioning

confidence: 99%