Phytoplankton succession in a Eutrophic lake with special reference to blue-green algal blooms

Lin, Chiu-Feng

doi:10.1007/bf00046648

Cited by 33 publications

(19 citation statements)

References 17 publications

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“…The general seasonal occurrence of cyanophycean algae resembled the patterns described for the same and different species since maximum development was associated with warm temperatures (Hammer, 1964 ;Lin, 1968Lin, , 1972Reynolds, 1971) . Interestingly, the Synechococcus sp.…”

Section: Discussionmentioning

confidence: 70%

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Seasonal succession, standing crop and determinants of primary productivity of the phytoplankton of Ministik Lake, Alberta, Canada

Hickman

1979

Hydrobiologia

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Ministik Lake (longitude I13°oi' ; latitude 53°21), a well-mixed, shallow (mean depth 1 .83 m), eutrophic lake is characterized by eutrophic chlorococcalean and cyanophycean phytoplankton associations, and little change in standing crop size with increasing depth. Standing crops and primary productivity are low during the winter but pronounced spring and late summer/early autumn maxima occur . Mean yearly areal standing crop (SB) and primary productivity (IA) were 199 .2 mg m 2 chlorophyll a and 319.5 mg C hr' m_' respectively . Annual productivity was estimated at 1399,6 g C m-2 yr' . The mean increase in the extinction coefficient (e) per unit increase in standing crop (B) was 0 .03 In units m -' . High non-algal light attenuation (eq) occurred averaging 46% which prevented the ratio BE from attaining more than 74.2% of the theoretical maximum except once when selfshading occurred . Insignificant relationships existed between B (mg M-3 chlorophyll a) and Amax (mg C hr-1 m_), 1A and XB and Y .A and B . Close correlations existed between XA and A max / e and 1A and Io (W m-) . The depth of the euphotic zone (z e.) varied between o .6 and 2 .0 m; the average relationship between z,,, and a was z e1 = 3 .78/ c , and the mean standing crop in the euphotic zone represented 58 .3% of the theoretical maximum. The high e g values made the model of Talling (i957) inapplicable to this lake. The Q,o value for the lake was 1 .20.Omax (mg C chlorophyll a' hf`) was closely related to both temperature and irradiance, and depressed by high pH values . Growth of the cyanophycean algae was correlated with temperature, chlorophycean algae with phosphate-phosphorus and temperature and the diatoms with dissolved silica and phosphate-phosphorus, but only in the case of Chaetoceros elmorii did any nutrient appear limiting . Indirect evidence that free CO2 limited photosynthetic rates is provided by the 0-:pH relationship.Dr. W. Junk b.v . Publishers -The Hague, The Netherlands

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Section: Discussionmentioning

confidence: 70%

“…These lakes have not been studied extensively (Bozniak, 1965 ;Bozniak & Kennedy, 1968 ;Lin,1968Lin, ,1972Wheelock, 1969) . Since these lakes are eutrophic (Hickman, 1978) physical factors greatly influence productivity and population dynamics .…”

Section: Introductionmentioning

confidence: 99%

Seasonal succession, standing crop and determinants of primary productivity of the phytoplankton of Ministik Lake, Alberta, Canada

Hickman

1979

Hydrobiologia

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“…eutrophic nature of water body (Lin, 1972). The monthly percent contribution of cyanophyceae in terms of population density amongst different phytoplankton groups is given in Figure 5.…”

Section: Phytoplankton Compositionmentioning

confidence: 99%

Effect of physico-chemical conditions on the structure and composition of the phytoplankton community in Wular Lake at Lankrishipora, Kashmir

Ganai¹,

Parveen²

2014

Int. J. Biodivers. Conserv.

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The high altitude valley of Kashmir abounds in a vast array of freshwater bodies of lotic as well as lentic nature. Amongst these, lakes play an important role in biodiversity of this region. The present study on Wular Lake, Kashmir was undertaken from March, 2007 to February, 2008 to study abundance and distribution of phytoplankton and their correlation with physico-chemical conditions of water. A total of 64 phytoplankton belonging to bacillariophyceae, chlorophyceae, cyanophyceae and euglenophyceae were identified. Phytoplankton in general, showed two growth periods, one in spring and other in winter. A clear dominance of bacillariophyceae over chlorophyceae, cyanophyceae and euglenophyceae was observed throughout the study period. Navicula spp. with population density of 118 no./ml was recorded to be the most abundant species amongst bacillariophyceae at the selected site. Chlorophyceae formed the second most dominant group of phytoplankton with Chlorella spp. (112 no./ml) as the most abundant species. Osillatoria spp. with population density of 119 no./ml was found to be the most abundant amongst cyanophyceae. Euglenophyceae formed the least represented group of phytoplankton with peak population in spring. Statistically, bacillariophyceae and euglenophyceae showed significant negative correlation (r = -0.855 and r = -0.177) with water temperature, while cyanophyceae showed significant positive correlation (r = 0.745). Chlorophyceae showed nonsignificant positive correlation (r = 0.325) with water temperature at the selected site. Shannon-Wiener diversity index (H′) value (1.672) was recorded for cyanophyceae, while the highest evenness (J′) value (0.8872) was recorded for euglenophyceae. The value of Berger-Parker index of dominance (0.1859) was highest for bacillariophyceae. Canonical correspondance analysis (CCA) was also carried out to analyze the relationship between the physico-chemical parameters and the phytoplankton. It showed that the most important factors affecting phytoplankton distribution are water temperature, CO 2 , chloride, transparency, TDS, alkalinity and dissolved oxygen.

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“…This succession period of dominant bloom species is usually very short and often lasts less than 1 month (Vance 1965;Jia et al 2011). The quick succession between the two types of blooms has attracted the attention of many researchers (Lin 1972;Wu et al 2010). The Anabaena bloom appears in April in Lake Chaohu and is soon replaced by Microcystis in May with the change of water temperature and nutrient concentrations (Cai and Kong 2013).…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic characteristics and inferred changes in thylakoid membrane fluidity determine bloom succession between Anabaena and Microcystis in eutrophic lakes

Wang

Cao

et al. 2016

J Appl Phycol

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Anabaena and Microcystis are common dominant cyanobacterial genera and frequently form blooms in large shallow eutrophic lakes in China. There is usually a quick succession between these two cyanobacterial blooms in early summer; however, there is currently no solid evidence based on photosynthesis and population competition to explain this phenomenon. This study compared the photosynthetic parameters and the indirectly measured thylakoid membrane fluidity characteristics between Anabaena and Microcystis. The results showed that the growth rate, the maximum photochemical efficiency of PSII (F v /F m ), and the maximum relative electron transport rate (rETR max ) of Microcystis cultured at 25°C were significantly lower than those from cells grown at 15°C, indirectly suggesting a marked limitation of thylakoid membrane fluidity at low temperatures. Chlorophyll fluorescence dynamics also indicated inhibition of NPQ formation and membrane fluidity when Microcystis was cultured at low temperatures; however, this inhibition was not significant for Anabaena. Fourier transition infrared (FT-IR) spectrometry indicated that the thylakoid membrane of Anabaena can maintain homeostasis fluidity through the upregulation of unsaturated fatty acids when exposed to chilling stress. Increasing the temperature significantly promoted the growth rate of Microcystis, while it had little effect on Anabaena. Moreover, photoinhibition of Anabaena was more easily induced by high light, thus accelerating the bloom succession from Anabaena to Microcystis during warm seasons. An activation-energy model was used to deduce that the threshold temperature of bloom succession was 15.4°C, which would increase to 16.2°C and decrease to 14.9°C under conditions of N-limitation and P-limitation.

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Phytoplankton succession in a Eutrophic lake with special reference to blue-green algal blooms

Cited by 33 publications

References 17 publications

Seasonal succession, standing crop and determinants of primary productivity of the phytoplankton of Ministik Lake, Alberta, Canada

Seasonal succession, standing crop and determinants of primary productivity of the phytoplankton of Ministik Lake, Alberta, Canada

Effect of physico-chemical conditions on the structure and composition of the phytoplankton community in Wular Lake at Lankrishipora, Kashmir

Photosynthetic characteristics and inferred changes in thylakoid membrane fluidity determine bloom succession between Anabaena and Microcystis in eutrophic lakes

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