Assessing impacts of invasive phytoplankton: The Baltic Sea case

Olenina, Irina; Wasmund, Norbert; Hajdu, Susanna; Jurgensone, Iveta; Gromisz, Sławomira; Kownacka, Janina; Toming, Kaire; Vaičiūtė, Diana; Olenin, Sergej

doi:10.1016/j.marpolbul.2010.06.046

Cited by 132 publications

(108 citation statements)

References 42 publications

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“…the Baltic Sea (Olenina et al 2010) indicate that anthropogenic activities, including intensifying maritime transport, have enhanced dispersal of marine organisms, which is in line with recent studies supporting the role of dispersal limitation for the microscopic world (Ptacnik et al 2010). Modeling studies indicate the general importance of dispersal by means of horizontal advection, as a factor regulating plankton diversity (Adjou et al 2012).…”

Section: Sub-basinsupporting

confidence: 81%

Against the tide: Recent diversity increase enhances resource use in a coastal ecosystem

Olli

Ptáčník

Andersen

et al. 2014

Limnology & Oceanography

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Biodiversity losses in marine, terrestrial, and freshwater ecosystems have raised concerns about the maintenance of sustainable ecosystem functions and services (''biodiversity crisis''). A positive diversity-productivity relationship has previously been supported by theoretical models, and by laboratory and field experiments in a variety of ecosystems including unicellular microbial communities. Here we show an increasing biomass yield of aquatic primary producers at the ecosystem scale, paralleled by a long-term positive biodiversity change, which contrasts with the trend of global biodiversity loss. The implied direct long-term biodiversity effect on ecosystem functioning was an increase of phytoplankton biomass per unit limiting nutrient by a factor of 1.2 to 1.4. Changes in diversity of microorganisms may have immediate implications for essential ecosystem processes like productivity and biomass yield. Diversity-driven enhancement of resource use in primary production can lead to increased food web yields, but they also can cause a stoichiometric mismatch between autotrophs and primary consumers. Unveiling the functional roles of planktonic biodiversity therefore has essential implications both for global change and for harvestable marine resources.

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Section: Sub-basinsupporting

confidence: 81%

Against the tide: Recent diversity increase enhances resource use in a coastal ecosystem

Olli

Ptáčník

Andersen

et al. 2014

Limnology & Oceanography

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“…A recent assessment of P. minimum in the Baltic Sea has linked its expansion in time and space, and its ecosystem impacts with human activities (Olenina et al, 2010). This species was reported for the first time in the English Channel area in 1976 (Smayda, 1990), and has since formed massive blooms in the Skagerrak and Kattegat areas (Edler et al, 1982).…”

Section: Benthic (12)mentioning

confidence: 99%

“…. ecosystem functioning (E0 to E4)'' (Olenina et al, 2010(Olenina et al, , p. 1693. Impacts were then evaluated using a five-level, quantitative ''biopollution index'' (Olenin et al, 2007;Olenina et al, 2010).…”

Section: Benthic (12)mentioning

confidence: 99%

Recent insights about relationships between nutrient availability, forms, and stoichiometry, and the distribution, ecophysiology, and food web effects of pelagic and benthic Prorocentrum species

2012

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“…For instance, very recently Katsanevakis et al (2014) have documented severe impacts of 87 NIS on marine biodiversity and ecosystem services in the European seas. In the Baltic Sea, however, there is only very limited amount of synthetic knowledge on the nature and magnitude of NIS impacts (Olenin & Leppäkoski, 1999;Ojaveer et al, 2002;Olenina et al, 2010;Zaiko et al, 2011). In the current study, we aimed to characterise, as comprehensively as possible, the effects of the widespread NIS on the selected abiotic and biotic ecosystem components and properties.…”

Section: Resultsmentioning

confidence: 99%

Ecosystem impacts of the widespread non-indigenous species in the Baltic Sea: literature survey evidences major limitations in knowledge

Ojaveer

Kotta

2014

Hydrobiologia

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Invasion of non-indigenous species (NIS) is acknowledged as one of the most important external drivers affecting structure and functions of marine ecosystems globally. This paper offers literaturebased analysis on the effects of the widespread (occurring in at least 50% of countries) and currently established NIS on ecosystem features in the Baltic Sea. It appears that out of the 18 NIS taxa studied, there are no published records on 28% of NIS for any of the seven impact categories investigated. When ecological impacts are known, laboratory experimental evidence dominates over field studies. Combined observations on impact strength, information type and confidence level suggest that the two benthic invertebrates, the polychaete Marenzelleria spp. and the zebra mussel Dreissena polymorpha (Pallas 1771) exert the highest ecosystem impact. Despite continuously accumulating information on the NIS effects, however, the confidence of findings is still low. Thus, we still understand very little on both the direction and magnitude of the effects of even the most widespread NIS on the structure and dynamics of the Baltic Sea ecosystems. In order to increase reliability of such assessments, future research should be targeted towards spatially-explicit field surveys and experimenting of multitrophic systems, together with modelling of ecosystem impact.

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Assessing impacts of invasive phytoplankton: The Baltic Sea case

Cited by 132 publications

References 42 publications

Against the tide: Recent diversity increase enhances resource use in a coastal ecosystem

Against the tide: Recent diversity increase enhances resource use in a coastal ecosystem

Recent insights about relationships between nutrient availability, forms, and stoichiometry, and the distribution, ecophysiology, and food web effects of pelagic and benthic Prorocentrum species

Ecosystem impacts of the widespread non-indigenous species in the Baltic Sea: literature survey evidences major limitations in knowledge

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