Advantages from diel vertical migration can explain the dominance of Gonyostomum semen (Raphidophyceae) in a small, steeply-stratified humic lake

Salonen, Kalevi; Rosenberg, Mirja

doi:10.1093/plankt/22.10.1841

Cited by 80 publications

(69 citation statements)

References 32 publications

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“…As G. semen can migrate in the vertical water column and stay at different depths during the 24-h period (Cowles and Brambel, 1936;Cronberg et al, 1988;Pithart et al, 1997;Salonen and Rosenberg, 2000), the vertical distribution in any lake depends on the time of sampling. Nevertheless, a mixed pattern of the species' vertical distribution occurs in the stratified water bodies of Polesie.…”

Section: Discussionmentioning

confidence: 99%

“…In shallow freshwaters two samples (0.5 m beneath the surface and 0.5 m above the bottom) were poured together into one collective sample, whereas in stratified lakes, samples were collected separately from two vertical zones (one epilimnion and one hypolimnion samples). Sampling was carried out at the same time of the day (usually between 11 a.m. and 2 p.m.) to avoid sampling artefacts associated with dial vertical migrations of the species, which is emphasized by some authors (Salonen and Rosenberg, 2000). Additional qualitative samples for taxonomic analysis were taken with a planktonic net (mesh size 20 mm).…”

Section: Study Areamentioning

confidence: 99%

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Gonyostomum semen(Ehr.) Diesing bloom formation in nine lakes of Polesie region (Central–Eastern Poland)

Pęczuła

Poniewozik

Szczurowska

2013

Ann. Limnol. - Int. J. Lim.

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-Using data from nine lakes, sampled between 2002 and 2010, as well as literature we have analysed blooms of Gonyostomum semen (Ehr.) Diesing in a new spreading area (Polesie region, Central-Eastern Poland). We tried to determine habitat suitability for high biomass of the species, including both physicochemical and morphometric features. High biomass of Gonyostomum ( > 1.4 mg.L x1 ) was found in three groups of coloured water bodies: (a) very small ( < 0.002 km 2 ) peat pits with low pH values and mineral content; (b) larger ponds with neutral pH values and intermediate conductivity; (c) natural lakes with intermediate parameters in terms of area, pH and mineral content. There were no statistical differences regarding the values of the species biomass among the groups of lakes. Gonyostomum biomass was closely positively correlated with water colour, whereas it was weakly negatively correlated with lake area and depth. The results show that G. semen in a new spreading area bloomed in a broad spectrum of freshwater habitats.

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Section: Discussionmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Gonyostomum semen(Ehr.) Diesing bloom formation in nine lakes of Polesie region (Central–Eastern Poland)

Pęczuła

Poniewozik

Szczurowska

2013

Ann. Limnol. - Int. J. Lim.

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“…The presence of these humic substances is one factor making the massive occurrences of Gonyostomum semen possible (e.g. Salonen & Rosenberg, 2000) and accelerating the consumption of oxygen during wintertime. This increases the risk of internal phosphorus load and diminishes the Secchi depth of the lakes.…”

Section: Implications For Lake Managementmentioning

confidence: 99%

The paleolimnological development of the twin lakes Etujärvi and Takajärvi in Askola, southern Finland - implications for lake management

Valpola¹,

Salonen²

2006

Bull Geol Soc Finland

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The twin lakes Etujärvi and Takajärvi in Askola, southern Finland, are closely interconnected mesotrophic headwater lakes with a relatively small catchment area. Both of the lakes have suffered from eutrophication and its consequences. Remediation activities such as oxygenation and biomanipulation have not resolved the problems. In this study a large set of paleolimnological techniques (radiometric AMS dating, spherical carbonaceous particles analysis, sediment lithology, grain-size analysis, phosphorus fractionation, and diatom analysis) were applied to put together the development of the basin and its water level fl uctuations during the Holocene. The age for observed Trapa natans -horizons was determined, and lake management options were discussed.The studied lakes dried up after isolation from the Ancylus Lake at about 9500 cal. B.P. and remained at very low water level until ca. 8700-8500 cal. B.P. The mid-Holocene rise in water level resulted in fl uctuating water levels, and led to the most recent rise starting about 2500 cal. B.P. as wet and cool climate conditions prevailed. The pronounced water level fl uctuations led to the extensive growth of peat deposits surrounding the lake and probably also forced T. natans to disappear from lake fl ora. The unstable, erodable peat rims impact the lakes, causing heavy load of humic substances to the lake and presenting additional deterioration to their recreational value.

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“…This DVM enables flagellates to optimize photosynthesis regardless of weather or water clarity (Ault 2000), to acquire nutrients over a wide depth-range (Watanabe et al 1991, Hall & Paerl 2011, and to avoid predation by zooplankton, which swim to the surface at night and return to deeper layers in the daytime (Lampert 1989). Diel vertical migration thus aids in competition with other microalgae such as diatoms, which do not have this ability (Watanabe et al 1995, Smayda 1997, Kamykowski et al 1998, Salonen & Rosenberg 2000. Diel vertical migration is therefore one of the most important physiological adaptations for survival and growth of flagellate algae.…”

Section: Introductionmentioning

confidence: 99%

Effects of salinity on diel vertical migration behavior in two red-tide algae, Chattonella antiqua and Karenia mikimotoi

Shikata

Sakamoto

Onitsuka

et al. 2014

Plankton Benthos Res

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Abstract:We examined the effects of salinity on diel vertical migration (DVM) of two coastal flagellates, Chattonella antiqua and Karenia mikimotoi, in 90-cm-high columnar aquariums. Experiments were performed with surface salinities from 5 to 32 and bottom salinity constant at 32. Cells of each flagellate were injected into the bottom of the aquarium at night and the vertical distribution of cells was monitored every 4 h for 36 h in one series of experiments, or twice daily (day and night) for 5 days in another. Ascent and descent started at approximately the same time in all water columns, indicating that difference in surface salinity does not substantially affect DVM rhythm in the two flagellates. During daytime, C. antiqua and K. mikimotoi transited haloclines with surface salinities ≥ 15 and accumulated at the surface, although K. mikimotoi required 2 days to transit the halocline with surface salinity of 20 and 4 days for surface salinity of 15. However, neither flagellate could transit haloclines with surface salinities of 5 or 10; instead they accumulated in the halocline during daytime. At night, most cells of both species accumulated at the bottom in all water columns, although the distribution of K. mikimotoi gradually expanded to the upper layers on successive days when surface salinity was 5 or 10. We demonstrated that low salinity in the surface layer blocks upward migration in two flagellate species and delays surface accumulation and weakens population synchrony of DVM at night in K. mikimotoi.

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Advantages from diel vertical migration can explain the dominance of Gonyostomum semen (Raphidophyceae) in a small, steeply-stratified humic lake

Cited by 80 publications

References 32 publications

Gonyostomum semen(Ehr.) Diesing bloom formation in nine lakes of Polesie region (Central–Eastern Poland)

Gonyostomum semen(Ehr.) Diesing bloom formation in nine lakes of Polesie region (Central–Eastern Poland)

The paleolimnological development of the twin lakes Etujärvi and Takajärvi in Askola, southern Finland - implications for lake management

Effects of salinity on diel vertical migration behavior in two red-tide algae, Chattonella antiqua and Karenia mikimotoi

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