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Article
Curbing the major and growing threats from invasive alien species is urgent and achievable
Although invasive alien species have long been recognized as a major threat to nature and people, until now there has been no comprehensive global review of the status, trends, drivers, impacts, management and...
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Article
Universal framework for assessing the environmental impact of marine non-indigenous species in different situations of data availability
Current methods for assessing the environmental impacts of marine non-indigenous species (NIS) are limited by insufficient data, an over-reliance on expert judgement and too coarse a spatial resolution, which ...
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Article
Open AccessGlobal marine biosecurity and ship lay-ups: intensifying effects of trade disruptions
Recent global trade disruptions, due to blockage of the Suez Canal and cascading effects of COVID-19, have altered the movement patterns of commercial ships and may increase worldwide invasions of marine non-i...
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Article
Open AccessSeasonal depth distribution and thermal experience of the non-indigenous round goby Neogobius melanostomus in the Baltic Sea: implications to key trophic relations
Native to the Ponto-Caspian region, the benthic round goby (Neogobius melanostomus) has invaded several European inland waterbodies as well as the North American Great Lakes and the Baltic Sea. The species is cap...
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Article
Feeding patterns of dominating small pelagic fish in the Gulf of Riga, Baltic Sea
We investigated the feeding of the dominant small pelagic fish—herring Clupea harengus membras and three-spined stickleback Gasterosteus aculeatus—in the Gulf of Riga (Baltic Sea) in the summers of 1999–2014. The...
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Article
Dynamics of biological invasions and pathways over time: a case study of a temperate coastal sea
Coastal and regional sea ecosystems suffer from several human-induced stressors, including human mediated bioinvasions. The Baltic Sea is generally considered to be susceptible to invasions by non-indigenous s...
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Article
A successful non-native predator, round goby, in the Baltic Sea: generalist feeding strategy, diverse diet and high prey consumption
The round goby Neogobius melanostomus has successfully invaded much of the Baltic Sea. However, very little is known about the feeding habits of the species in this newly invaded environment. Our laboratory exper...
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Article
Ecosystem impacts of the widespread non-indigenous species in the Baltic Sea: literature survey evidences major limitations in knowledge
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 literature-based analys...
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Article
Open Access‘Double trouble’: the expansion of the Suez Canal and marine bioinvasions in the Mediterranean Sea
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Article
Mislabeled: eco-labeling an invasive alien shellfish fishery
The invasive alien Manila clam fishery from Ria Arousa, Spain, was recommended for a Marine Stewardship Council certificate which implies the fishery maintains the integrity of the ecosystem. By certifying an ...
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Article
Chinese mitten crab Eriocheir sinensis in the Baltic Sea—a supply-side invader?
Although the Chinese mitten crab Eriocheir sinensis (H. Milne-Edwards, 1853) (Crustacea, Decapoda, Varunidae) invaded the Baltic Sea about 80 years ago, published information on its present distribution and abund...
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Article
Ecological consequences of biological invasions: three invertebrate case studies in the north-eastern Baltic Sea
Population dynamics and ecological impacts of the cirriped Balanus improvisus, the polychaete Marenzelleria neglecta and the cladoceran Cercopagis pengoi were investigated in the north-eastern Baltic Sea. After a...
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Article
Taxonomic Status and Reproduction Dynamics of the Non-Indigenous Cercopagis in the Gulf of Riga (Baltic Sea)
Overwintering population of Cercopagis is represented by resting eggs which hatch generally in May. Although representatives of the first parthenogenetic generation (the spring form individuals) differ morphologi...
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Chapter and Conference Paper
Impact of Suspension-Feeding Nekton in Freshwater Ecosystems: Patterns and Mechanisms
Suspension-feeding fish influence several abiotic and biotic components of freshwater ecosystems. Amongst others, abiotic components include water transparency and retention of essential nutrients. Biotic effe...
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Article
Population dynamics and ecological impact of the non-indigenous Cercopagis pengoi in the Gulf of Riga (Baltic Sea)
Abundance of the exotic predatory cladoceran Cercopagis pengoi (Ostroumov, 1891) in the Gulf of Riga has increased during the first ten years of invasion (1992–2001) and peaked with an annual mean of 420 ± 109 (s...
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Chapter
The Predatory Water Flea Cercopagis Pengoi in the Baltic Sea: Invasion History, Distribution and Implications to Ecosystem Dynamics
Cercopagis pengoi, a predatory cladoceran from the Ponto-Caspian basin, invaded the northeastern Baltic Sea in 1992 due to ballast water discharges, and by the end of the 1990s formed several perma...
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Chapter
Ecological Impact of Ponto-Caspian Invaders in the Baltic Sea, European Inland Waters and the Great Lakes: An Inter-Ecosystem Comparison
We review the ecological impacts of Ponto-Caspian invaders in the Baltic Sea, selected lakes and rivers in inland Europe, and the North American Great Lakes. Each of these regions has been invaded multiple tim...
