2001
DOI: 10.1071/mf01016
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Sensitivity of freshwater macrophytes to UV radiation: relationship to depth zonation in an oligotrophic New Zealand lake

Abstract: Abstract. The ultraviolet radiation (UVR) responses of photosynthesis by two freshwater vascular plants, Potamogeton cheesemanii and Isoetes alpinus, and the characean algae Chara fibrosa and C. corallina in Lake Coleridge, New Zealand, were investigated. Experiments comprised 4-5 h of exposure to different UV wavelengths followed by 17 h of recovery in low light. Photosynthetic competence was assessed by pulse-amplitude-modulated fluorometry. The four species showed different sensitivities to UVR, which were … Show more

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Cited by 21 publications
(14 citation statements)
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“…The accounting and finance academic community, faced with huge increases in student numbers, has experienced a large increase in the number of academic staff, together with an increase in the proportion who are PhD-qualified and a decline in the proportion who are professionally qualified (Brown et al, 2007). The research assessment environment has increased both the pressure to publish and the pressure to publish in designated top journals (RAE 2001;REF 2013;Moizer, 2009: 294), although there has also been a rise in the number of academic accounting journals (Zeff, 1996).…”
Section: Rq4mentioning
confidence: 99%
“…The accounting and finance academic community, faced with huge increases in student numbers, has experienced a large increase in the number of academic staff, together with an increase in the proportion who are PhD-qualified and a decline in the proportion who are professionally qualified (Brown et al, 2007). The research assessment environment has increased both the pressure to publish and the pressure to publish in designated top journals (RAE 2001;REF 2013;Moizer, 2009: 294), although there has also been a rise in the number of academic accounting journals (Zeff, 1996).…”
Section: Rq4mentioning
confidence: 99%
“…The restricted population of researchactive staff and their four 'best' publications were identified from the RA2 submissions made to the two relevant panels of peer-reviewers (A&F, and B&M), available from the RAE 2001 web-site (RAE, 2001). The full population of publications available for submission in the census period was identified from the three relevant biennial British Accounting Review Research Registers Gray, 1998, 2000;Helliar et al, 2002).…”
mentioning
confidence: 99%
“…The differences in production among macrophyte parts could be explained by Ecol (2010) 44:83-92 89 differences in the light conditions to which those parts were exposed. Generally, greater light availability should increase photosynthesis for the upper macrophyte part (Wetzel 2001), while light that is too intense may also inhibit photosynthesis (Rae et al 2001). In our study, the light intensities in June and July were quite similar, while the water was more transparent in June (Fig.…”
Section: Discussionmentioning
confidence: 78%