Population dynamics of Chaoborus flavicans and Daphnia spp.: effects on a zooplankton community in a volcanic eutrophic lake with naturally high metal concentrations (L. Monticchio Grande, Southern Italy)

Leoni, Barbara; Garibaldi, Letizia

doi:10.4081/jlimnol.2009.37

Cited by 12 publications

(10 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thermal regime and the presence of the predaceous larvae of Chaoborus flavicans might account for the observed population dynamics and cyclomorphosis. The presence of active high density population was recorded when temperature was between 15 and 22°C, a tolerance range that is in accordance with general reports on D. pulex (Margaritora, 1985;Havel, 1985;Black and Dodson, 1990) and with data from the Italian population of Lago Grande di Monticchio that was described by Leoni and Garibaldi (2009). The presence of C. flavicans might account for high juvenile mortality reducing the chance of parthenogenetic females to reach maturity.…”

Section: Discussionsupporting

confidence: 71%

“…D. pulex was recorded both in permanent and temporary habitats in Northern and Southern Italy (de Bernardi et al, 1985;Stoch et al, 2002;Marrone et al, 2007;Leoni and Garibaldi, 2009) and in several Italian islands: Sicily, Sardinia, Lampedusa and Capraia (Stoch et al, 2002;Marrone et al, 2006). By molecular markers, panarctic and North American D. pulex individuals were identified in Northern Italy and in Sardinia (Vergilino et al, 2011;Markova et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reproduction of Daphnia pulex in a Northern Italy pond

et al. 2014

View full text Add to dashboard Cite

show abstract

Section: Discussionsupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Reproduction of Daphnia pulex in a Northern Italy pond

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Nitrogen pollution in water has become a serious global environmental problem. It causes water eutrophication, stimulating the growth of dinoflagellates and Cyanobacteria and influencing phytoplankton blooms, and represents a potential hazard to human health [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Ammonium Transformation in 14 Lakes along a Trophic Gradient

Leoni

Patelli

Soler

et al. 2018

Water

Self Cite

View full text Add to dashboard Cite

Ammonia is a widespread pollutant in aquatic ecosystems originating directly and indirectly from human activities, which can strongly affect the structure and functioning of the aquatic foodweb. The biological oxidation of NH 4 + to nitrite, and then nitrate is a key part of the complex nitrogen cycle and a fundamental process in aquatic environments, having a profound influence on ecosystem stability and functionality. Environmental studies have shown that our current knowledge of physical and chemical factors that control this process and the abundance and function of involved microorganisms are not entirely understood. In this paper, the efficiency and the transformation velocity of ammonium into oxidised compounds in 14 south-alpine lakes in northern Italy, with a similar origin, but different trophic levels, are compared with lab-scale experimentations (20 • C, dark, oxygen saturation) that are performed in artificial microcosms (4 L). The water samples were collected in different months to highlight the possible effect of seasonality on the development of the ammonium oxidation process. In four-liter microcosms, concentrations were increased by 1 mg/L NH 4 + and the process of ammonium oxidation was constantly monitored. The time elapsed for the decrease of 25% and 95% of the initial ion ammonium concentration and the rate for that ammonium oxidation were evaluated. Principal Component Analysis and General Linear Model, performed on 56 observations and several chemical and physical parameters, highlighted the important roles of total phosphorus and nitrogen concentrations on the commencement of the oxidation process. Meanwhile, the natural concentration of ammonium influenced the rate of nitrification (µg NH 4 + /L day). Seasonality did not seem to significantly affect the ammonium transformation. The results highlight the different vulnerabilities of lakes with different trophic statuses.

show abstract

“…During the study period, the dominance of inedible cyanobacteria provokes a very low species diversity of zooplankton; only one species of cladocera, D. brachyurum was found. An ecosystem generally becomes poor at high trophic levels (Leoni and Garibaldi, 2009) with few species and a low structural complexity.…”

Section: Discussionmentioning

confidence: 99%

Seasonal dynamics of plankton communities coupled with environmental factors in a semi arid area: Sidi Sad reservoir (Center of Tunisia)

Sellami

Romdahane

Guermazi

et al. 2012

Afr. J. Biotechnol.

View full text Add to dashboard Cite

) at a depth of 10 m. The copepods (56% of total zooplankton abundance) and cladocera (42% of total zooplankton abundance) were the most abundant groups. The physico-chemical factors, especially the water temperature (r = 0.53, p = 0.027, n = 16) and dissolved oxygen (r = -0.59, p = 0.03, n = 16), influence directly the zooplankton community. It was suggested that in Sidi Saâd reservoir, both the top-down and bottom-up regulations account for the regulation of zooplankton. The phytoplankton was the factor responsible for the structure and seasonal dynamics of the zooplankton community, which are well related to changes in algae diversity and abundance, noting that cyanobacteria have major impacts. The "top-down" effect of planktivorous fish on the zooplankton is a significant factor affecting the plankton community's dynamics in this reservoir.

show abstract

Population dynamics of Chaoborus flavicans and Daphnia spp.: effects on a zooplankton community in a volcanic eutrophic lake with naturally high metal concentrations (L. Monticchio Grande, Southern Italy)

Abstract: The

Cited by 12 publications

References 54 publications

Reproduction of Daphnia pulex in a Northern Italy pond

Reproduction of Daphnia pulex in a Northern Italy pond

Ammonium Transformation in 14 Lakes along a Trophic Gradient

Seasonal dynamics of plankton communities coupled with environmental factors in a semi arid area: Sidi Sad reservoir (Center of Tunisia)

Contact Info

Product

Resources

About