Phytoplankton assemblages in Lake Orta: has functional structure recovered in one of the largest acidic lakes in the world?

Morabito, Giuseppe

doi:10.4081/jlimnol.2016.1381

Cited by 4 publications

(3 citation statements)

References 22 publications

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“…In particular, many phytoplankton species that inhabit Lake Maggiore are now re-appearing in Lake Orta. However, the phytoplankton assemblages still have a peculiar structure, only partially resembling the taxonomic and functional composition of nearby Lake Maggiore (Morabito, 2016).…”

Section: Water Temperature Trophic State and Phytoplanktonmentioning

confidence: 99%

Plankton dynamics across the freshwater, transitional and marine research sites of the LTER-Italy Network. Patterns, fluctuations, drivers

Morabito¹,

Mazzocchi

Salmaso

et al. 2018

Science of The Total Environment

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A first synoptic and trans-domain overview of plankton dynamics was conducted across the aquatic sites belonging to the Italian Long-Term Ecological Research Network (LTER-Italy). Based on published studies, checked and complemented with unpublished information, we investigated phytoplankton and zooplankton annual dynamics and long-term changes across domains: from the large subalpine lakes to mountain lakes and artificial lakes, from lagoons to marine coastal ecosystems. This study permitted identifying common and unique environmental drivers and ecological functional processes controlling seasonal and long-term temporal course. The most relevant patterns of plankton seasonal succession were revealed, showing that the driving factors were nutrient availability, stratification regime, and freshwater inflow. Phytoplankton and mesozooplankton displayed a wide interannual variability at most sites. Unidirectional or linear long-term trends were rarely detected but all sites were impacted across the years by at least one, but in many case several major stressor(s): nutrient inputs, meteo-climatic variability at the local and regional scale, and direct human activities at specific sites. Different climatic and anthropic forcings frequently co-occurred, whereby the responses of plankton communities were the result of this environmental complexity. Overall, the LTER investigations are providing an unparalleled framework of knowledge to evaluate changes in the aquatic pelagic systems and management options.

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Section: Water Temperature Trophic State and Phytoplanktonmentioning

confidence: 99%

Plankton dynamics across the freshwater, transitional and marine research sites of the LTER-Italy Network. Patterns, fluctuations, drivers

Morabito¹,

Mazzocchi

Salmaso

et al. 2018

Science of The Total Environment

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“…These data permit a longer-term evaluation of both the response of the lake to the restorative interventions, and an assessment of the present state of lake's acid-base and trophic status. This information, coupled with that from the studies about the biological communities (Morabito, 2016;Piscia et al, 2016) contributes to the definition of the lake ecological and chemical status. Furthermore, an in-depth knowledge of the lake chemical and trophic status is a precondition for the planning of any restoration measure, such as fish introduction (Volta et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Lake Orta chemical status 25 years after liming: problems solved and emerging critical issues

et al. 2016

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“…SHE analysis was carried out to examine the relationship between S (species richness), H (Shannon diversity), and E (evenness or dominance) in the samples, in order to compare the long-term trend in taxa biodiversity. The advantage of the SHE analysis was that it allowed for the separation of di-versity into two components, species richness (S) and evenness (E), within the same system and at the same time, so their mutual relationships could be described to explain the changes in biodiversity represented by the H index (Morabito 2016). We used PAST 3.07, SPSS (version 16.0) and Statistica (version 8) for the statistical computations.…”

Section: Data Analysesmentioning

confidence: 99%

Community Structure of Migratory Waterbirds at Two Important Wintering Sites in a Sub-Himalayan Forest Tract in West Bengal, India

Chatterjee¹,

Adhikari²,

Pal³

et al. 2020

The Ring

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The waterbird community structures of two sub-Himalayan wetlands (Nararthali and Rasomati) situated in forested areas were compared during the wintering period. These wetlands had similar geophysical features but were subject to different conservation efforts. Sixty species of waterbirds, including four globally threatened species, were recorded during the study. Nararthali was found to be more densely inhabited (116.05±22.69 ind./ha) by birds than Rasomati (76.55±26.47 ind./ha). Density increased by 44.6% at Nararthali and by 59% at Rasomati over the years of the study, from 2008 to 2015. Winter visitors increased considerably at Nararthali (66.2%), while a 71.1% decrease at Rasomati clearly indicated degradation of habitat quality at that site during the later years. Luxuriant growth of Eichhornia crassipes, siltation, poor maintenance and unregulated tourist activities were the key factors leading to the rapid degradation of Rasomati. Nararthali, on the other hand, a well-managed wetland habitat, showed an increasing trend in bird densities. Therefore, poor habitat management and rapid habitat alterations were observed to be the main reasons for depletion of bird density in the wetlands of eastern sub-Himalayan forest regions.

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Phytoplankton assemblages in Lake Orta: has functional structure recovered in one of the largest acidic lakes in the world?

Cited by 4 publications

References 22 publications

Plankton dynamics across the freshwater, transitional and marine research sites of the LTER-Italy Network. Patterns, fluctuations, drivers

Plankton dynamics across the freshwater, transitional and marine research sites of the LTER-Italy Network. Patterns, fluctuations, drivers

Lake Orta chemical status 25 years after liming: problems solved and emerging critical issues

Community Structure of Migratory Waterbirds at Two Important Wintering Sites in a Sub-Himalayan Forest Tract in West Bengal, India

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