Rotifer occurrence in relation to temperature

Bērziņš, Bruno; Pejler, Birger

doi:10.1007/bf00006092

Cited by 148 publications

(81 citation statements)

References 11 publications

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“…Species composition and abundance of rotifers can be influenced by a number of physical, chemical and biological factors, such as temperature (e.g., Herzig 1983;Berzins & Pejler 1989a), O 2 (Berzins & Pejler 1989b), pH (Berzins & Pejler 1987), quantity and quality of food (e.g., Enrique-García et al 2003;Ramos-Rodriguez & Conde-Porcuna 2003), predation and competition (Wickham & Gilbert 1991;Dieguez & Gilbert 2002). The size of water bodies (Patalas 1971), their trophic state (Gannon & Stemberger 1978) and the succession stage (Hutchinson 1967) also greatly influence the species composition of rotifers.…”

Section: Introductionmentioning

confidence: 99%

Differences in rotifer communities in two freshwater bodies of different trophic degree (Lake Ohrid and Lake Dojran, Macedonia)

et al. 2012

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We investigated monogonont rotifers in two natural Macedonian lakes that greatly differ in age, size and trophic state: Lake Ohrid and Lake Dojran. A main characteristic of Lake Ohrid is the scarcity of nutrients and consequently a low level of primary production. Lake Dojran represents a typical eutrophic lake. Results clearly indicate that species numbers are negatively correlated with trophic degree. Qualitative analyses of rotifer compositions in Lakes Ohrid and Dojran showed the presence of 70 and 55 taxa, respectively. Rotifer assemblages differed in their community structure, population densities, and the occurrence pattern of dominant species. (in September, 2005) were recorded in Lake Dojran. Gastropus stylifer and Keratella cochlearis were the most abundant species in the pelagic zone of Lake Ohrid, averaging monthly densities of 1.2 ind. L −1 and 0.6 ind. L −1 , respectively, thereby contributing 29% and 15% to rotifer abundance. In contrast, Lake Dojran rotifers were dominated by Brachionus spp. Brachionus diversicornis and Brachionus calyciflorus f. amphiceros were most abundant, comprising 40% and 25% of the total rotifer density. These results corroborate our idea, that the trophic state is an important factor in determining the composition of rotifer communities.

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Section: Introductionmentioning

confidence: 99%

Differences in rotifer communities in two freshwater bodies of different trophic degree (Lake Ohrid and Lake Dojran, Macedonia)

et al. 2012

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“…Synchaeta sp. has also been found abundant in spring to early summer (Elliott 1977;Holst et al 1998), while Ploesoma truncatum showed higher abundance in summer according to Berzins & Pejler (1989) and Ferrara et al (2002). Finally, Gastropus stylifer was present from spring to autumn in the study area, as in Lake Trichonis (Doulka & Kehayias 2008).…”

Section: Seasonal Variability Of Zooplanktonmentioning

confidence: 70%

“…Finally, Gastropus stylifer was present from spring to autumn in the study area, as in Lake Trichonis (Doulka & Kehayias 2008). Elliott (1977) found this species from spring to autumn in lakes of England, while Berzins & Pejler (1989) considered it as a winter species. In Lake Mikri Prespa G. stylifer was present from May to July (Michaloudi et al 1997).…”

Section: Seasonal Variability Of Zooplanktonmentioning

confidence: 79%

Zooplankton dynamics in the upstream part of Stratos reservoir (Greece)

Kehayias

Chalkia

et al. 2008

Biologia

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The investigation of the zooplankton community in the upstream part of Stratos reservoir during a 24 months survey (September 2004 -August 2006 revealed 26 invertebrate species (14 rotifers, 6 cladocerans, 5 copepods and one mollusk larva). The mean abundance of the total zooplankton was higher in the first sampling period (2004)(2005) and ranged between 8.81 and 47.74 ind. L −1 , than the second period (2005)(2006) when fluctuated between 1.91 and 43.09 ind. L −1 . The seasonal variation was strongly influenced by the presence of rotifers, which accounting on average for 68.4% in total. Among them Keratella cochlearis and the order Bdelloidea were numerically the most important, while Macrocyclops albidus prevailed among the copepods and Bosmina longirostris among the cladocerans. Dreissena polymorpha was the only mollusk found in the zooplankton community. Rotifers, copepods and cladocerans showed a seasonal succession with the former preceding in the abundance having their first maximum in spring, while copepods and cladocerans followed, having peaks of abundance in early summer and in autumn, respectively. No seasonal succession among the cladoceran species was observed. The intense water flow in the upstream part of the reservoir, as well as temperature, conductivity, DO, pH, phosphates and silicates, were significant parameters controlling abiotic and biotic elements of the ecosystem and consequently influencing the seasonal variation and the dynamics of the zooplankton community.

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“…Among the species identified as indicators of eutrophication in this wetland as well as in other regions, the rotifer Brachionus sp. stands in its great tolerance to extremely eutrophic environments (Sladecek, 1983) and to high conductivity (Berzins and Pejler, 1989). Nogueira (2001) reported that the index of eutrophic waters is above 15 species and that its abundance is considered as a biological indicator for eutrophication.…”

Section: Zooplankton Species Compositionmentioning

confidence: 99%

Ecological investigation of zooplankton abundance in the Bhoj wetland, Bhopal of central India: Impact of environmental variables

Bhat¹,

Rainaand²,

Wanganeo³

2015

Int. J. Fish. Aquac.

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The influence of physicochemical properties of wetland, on its zooplankton composition and abundance were investigated for two years between February 2008 and January 2010. In both the years, total of 62 species of zooplankton were identified. At all the stations of the water body Rotifera recorded the highest percentage of 45% followed by cladocera (29%), Protozoa (13%), Copepoda and Ostracoda (8 and 4%) respectively. In terms of density, total zooplanktonic density during 1st year was 7395 Ind.l-1 that increased to 8543 Ind.l-1 in the 2nd year. In the first year, Copepoda (2 Ind.1-1 to 2415 Ind.1-1) constituted the largest group making up 63.41% of the zooplankton population density, this was followed by Cladocera (21.27%) with having numerical density ranges between (3 Ind.1-1 to546 Ind.1-1) and Rotifera group (14.15%) having a density varied from 2 to 207 Ind.1-1. The genus Bosmina (34.7%) dominated the Cladoceran group and Polyarthra and Brachionus (19.8 and 18.7%) recorded highest in terms of percentage among the Rotifera group, while as the genus Cyclops (51.5%) recorded the highest number among the Copepoda group and was also dominant genus among the zooplankton genera. During second year of study period, the Copepoda (70.08%) which had a density variation between 2 Ind.1-1 to 4491 Ind.1-1 and this was followed by Cladocera (18.67%) with numerical density ranges between 3 to 337 Ind.1-1 and Rotifera (9.08%) having density between 2 Ind.1-1 to 171 Ind.1-1. The genus Chydorus (21.1%) dominated the Cladoceran group and genus Lecane (22.0%) recorded highest in terms of percentage among the Rotifera group, while as the genus Cyclops (75.0%) recorded the highest number among the Copepoda group and was also dominant genus among the zooplankton genera. The water body is receiving domestic discharge leading to large amount of nutrient inputs and high amount of phosphate and nitrate in the water body indicates that water is eutrophic in nature.

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Rotifer occurrence in relation to temperature

Cited by 148 publications

References 11 publications

Differences in rotifer communities in two freshwater bodies of different trophic degree (Lake Ohrid and Lake Dojran, Macedonia)

Differences in rotifer communities in two freshwater bodies of different trophic degree (Lake Ohrid and Lake Dojran, Macedonia)

Zooplankton dynamics in the upstream part of Stratos reservoir (Greece)

Ecological investigation of zooplankton abundance in the Bhoj wetland, Bhopal of central India: Impact of environmental variables

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