Martin Snickars

Martin Snickars
Åbo Akademi University · Department of Biosciences, Environmental and Marine Biology

PhD

About

36
Publications
11,656
Reads
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978
Citations
Citations since 2017
14 Research Items
593 Citations
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
Additional affiliations
October 2016 - present
Åbo Akademi University
Position
  • Head of Department
January 2004 - present

Publications

Publications (36)
Article
Full-text available
Coastal waters are important in linking zoobenthos and fish, as many coastal fishes feed on benthic prey in these habitats. Major drivers, such as eutrophication and climate change, may alter this link, whereas shifts in the importance of these drivers may induce different responses in zoobenthos and fish, respectively, potentially changing product...
Article
Full-text available
The occurrence of the habitat-forming macroalgae Fucus vesiculosus has generally decreased in many Baltic Sea areas. Parallel to eutrophication, water temperature has increased, enhancing pelagic primary production, light absorption and sedimentation, affecting phytobenthic communities. We studied the occurrence of F. vesiculosus (> 3400 drop-video...
Article
Full-text available
Vegetated soft bottoms are under pressure due to a number of anthropogenic stressors, such as coastal exploitation and eutrophication. The ecological value of these biotopes has gained recognition through international conventions and the EU directives, which request methods for assessment of the environmental status of coastal areas. However, curr...
Article
Full-text available
Eutrophication is severely affecting species distributions and ecosystem functioning in coastal areas. Targets for eutrophication reduction have been set in the Baltic Sea Action Plan (BSAP) using Secchi depth, a measure of water transparency, as the main status indicator. Despite the high economic costs involved, the potential effects of this poli...
Article
In this study radio telemetry was used to examine the upstream spawning migration behaviour of anadromous brown trout (sea trout), Salmo trutta L., in a boreal river system, the River Isojoki, Western Finland. The aim was to study the movement activity and migration characteristics of trout during the upstream spawning migration, as well as locate...
Preprint
The distribution ranges and spatio-temporal patterns in the occurrence and activity of boreal bats are yet largely unknown due to their cryptic lifestyle and lack of suitable and efficient study methods. We approached the issue by establishing a permanent passive-acoustic sampling setup spanning the area of Finland to gain an understanding on how l...
Article
Full-text available
Shallow coastal bays with dense aquatic phytobenthic communities are important but vulnerable habitats and nursery areas for fish and invertebrates in the Baltic Sea. These habitats are under increasing anthropogenic stress, and understanding their dynamics is a prerequisite for management and conservation. In this study, we examined the effects of...
Article
Full-text available
Social-ecological systems dependent on fisheries must be resilient or adapt to remain viable in the face of change. Here, we identified possible interventions (termed “adaptation options”) from published literature, aimed at supporting social or ecological resilience and/or aiding adaptation to changes induced by environmental or social stressors....
Article
Full-text available
This experimental field study provides first insights into the impact of a widely spread non-native fish species, round goby Neogobius melanostomus (Pallas 1814), on the diversity of native epifaunal macroinvertebrate communities in the Baltic Sea. A cage experiment was conducted in a macrophyte habitat in the Åland islands located in the northern...
Article
Marine macrophytes and -algae have undergone major changes in abundance and species composition over the last decades, primarily due to eutrophication. However, comparable studies conducted in the mid 20th century are rare, but potentially valuable for enabling insight into changes in the benthic communities from the early onset of the eutrophicati...
Article
Full-text available
In 2015 a long-term, nationwide tick and tick-borne pathogen (TBP) monitoring project was started by the Finnish Tick Project and the Finnish Research Station network (RESTAT), with the goal of producing temporally and geographically extensive data regarding exophilic ticks in Finland. In the current study, we present results from the first four ye...
Article
Full-text available
The aim of this study was to examine how the presence of a predator and an interspecific competitor influence the habitat use of adult perch (Perca fluviatilis; size: 15.1 ± 0.5 cm) when given the choice between two adjacent habitats. By means of aquarium experiments, the habitat occupancy of P. fluviatilis was documented in presence and absence of...
Article
Full-text available
Juvenile of garfish Belone belone (Belonidae) were caught during two separate field courses held at the Archipelago Research Institute of University of Turku and at the Husö Biological Station of Åbo Akademi University respectively in 2019.
Article
Full-text available
Coastal habitats are used by a great variety of organisms during some or all stages of their life cycle. When assessing the link between biological communities and their environment, most studies focus on environmental gradients, whereas the comparison between multiple habitats is rarely considered. Consequently, trait-based aspects of biodiversity...
Article
Full-text available
Many coastal and offshore fish species are highly dependent on specific habitat types for population maintenance. In the Baltic Sea, shallow productive habitats in the coastal zone such as wetlands, vegetated flads/lagoons and sheltered bays as well as more exposed rocky and sandy areas are utilised by fish across many life history stages including...
Article
Full-text available
As the world’s social-environmental problems increasingly extend across boundaries, both disciplinary and political, there is a growing need for interdisciplinarity, not only in research per se, but also in doctoral education. We present the common pitfalls of interdisciplinary research in doctoral education, illustrating approaches towards solutio...
Article
Full-text available
Understanding large-scale spatial variation in ecosystem properties and associated functionality is key for successful conservation of ecosystems. This study provides a template for how to estimate differences in ecosystem functionality over large spatial scales by using groupings of biological traits. We focus on trait groupings that describe thre...
Article
Full-text available
Oceans are exposed to anthropogenic climate change shifting marine systems toward potential instabilities. The physical, biological and social implications of such shifts can be assessed within individual scientific disciplines, but can only be fully under- stood by combining knowledge and expertise across disciplines. For climate change related pr...
Article
Full-text available
Marine scientists broadly agree on which major processes influence the sustainability of marine environments worldwide. Recent studies argue that such shared perceptions crucially shape scientific agendas and are subject to a confirmation bias. Based on these findings a more explicit engagement with scientists’ (shared) perceptions of global change...
Article
Full-text available
Coastal zones are facing climate-driven change coupled with escalating eutrophication. With increasing shifts in hydrographic conditions during the past few decades, a focal task is to understand how environmental drivers affect zoobenthic communities, which play a crucial role in ecosystem functioning. By using long-term data, spanning 40 yr (1973...
Article
Full-text available
We evaluated performance of species distribution models for predictive mapping, and how models can be used to integrate human pressures into ecological and economic assessments. A selection of 77 biological variables (species, groups of species, and measures of biodiversity) across the Baltic Sea were modeled. Differences among methods, areas, pred...
Article
Vegetation communities, morphometric and water quality variables were sampled in 62 undisturbed coastal lagoons along a natural land-uplift gradient in the northern Baltic Sea. The lagoons had a morphological inlet threshold reflecting habitat isolation (i.e. the diminished connectedness of the lagoon to the sea) and located in different parts of t...
Article
Full-text available
Substrate spawning fish are believed to be selective in their choice of spawning habitat, yet few studies have shown the relative importance of different characteristics in terms of habitat quality. We used an extensive and detailed dataset to identify the factors that govern both large-scale (103 to 105 m) and local-scale (101 to 102 m) selection...
Article
In the Baltic Sea, increased dominance of ephemeral and bloom-forming algae is presently attributed to increased nutrient loads. Simultaneously, coastal predatory fish are in strong decline. Using field data from nine areas covering a 700-km coastline, we examined whether formation of macroalgal blooms could be linked to the composition of the fish...
Article
Full-text available
The assemblages of young-of-the-year fish were studied in coastal lagoons in an archipelago with post-glacial land-uplift, which affects environmental gradients at local and regional scale, i.e. lagoon habitat isolation and archipelago position, respectively. The categorisation of 40 undisturbed lagoons into nine habitat types based on habitat isol...
Article
Low impact pressure waves (LIMP) generated by small (b 1 g) underwater ignition capsules have been used to qualitatively and semi-quantitatively, as catch per unit effort, sample young-of-the-year (YOY) and juvenile fish in shallow (0–3 m) waters. In order to evaluate this method on small fish, four categories, 0+ and 1+ year Eurasian perch, 1+ yea...
Article
Full-text available
In this study, the combined influence of vegetation density and water turbidity on habitat utilization of a prey fish, 0+ year perch Perca fluviatilis, under predation risk (pike, Esox lucius) was investigated. The vegetated habitat was overall preferred over the open habitat in the presence of a predator. The level of turbidity, and to a lesser ex...
Article
Full-text available
Convergent stonewort, Chara connivens Saltzm. Ex. A. Braun 1835, was found in the northern Åland archipelago in July 2004 and confirmed finally in September 2004 when the individuals had turned fertile. Only female plants were found. This is the first confirmed find of the species in Finland. C. connivens was found at a depth of 0.5–1.5 meter outsi...

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Projects

Projects (3)
Project
The project is a collaboration between all young researchers (Ph.D.s and post docs) affiliated with NorMER aiming to address the following question: What is the current state and the trends of climate change research within the Nordic region in relation to NorMER? Specifically: within the NorMER focus areas what has been studied so far? What are the gaps and what are the trends? The approach is to create a database categorizing the literature relevant to NorMER (limited by certain criteria). The content of the database can then be visualized and synthesised in different ways to identify the focus of current and previous research. The database can be used to answer specific questions such as: which species are the most studied in the climate change research within the North Atlantic? Most people may have an opinion about this, but with the database the question can be answered using facts rather than speculation.The database will also contain information about the spatial and temporal structure of the relevant literature such that trends in climate change research can be quantified, but also trends in more complex interactions such as cod/temperature studies or trends in interdisciplinary work in the Nordic region and their spatial variability. All publications using the database will include all young researchers as authors. Such publications would not only be of value at the individual level, but also identify NorMER as a coherent center, which is an important message to send to the funders of NorMER and the public in general.
Project
PREHAB evaluates how predictive modelling is best achieved and how it can be applied for a sustainable use of the Baltic Sea.
Project
The project is a collaboration between all young researchers (Ph.D.s and post docs) affiliated with NorMER aiming to address the following question: What is the current state and the trends of climate change research within the Nordic region in relation to NorMER? Specifically: within the NorMER focus areas what has been studied so far? What are the gaps and what are the trends? The approach is to create a database categorizing the literature relevant to NorMER (limited by certain criteria). The content of the database can then be visualized and synthesised in different ways to identify the focus of current and previous research. The database can be used to answer specific questions such as: which species are the most studied in the climate change research within the North Atlantic? Most people may have an opinion about this, but with the database the question can be answered using facts rather than speculation.The database will also contain information about the spatial and temporal structure of the relevant literature such that trends in climate change research can be quantified, but also trends in more complex interactions such as cod/temperature studies or trends in interdisciplinary work in the Nordic region and their spatial variability. All publications using the database will include all young researchers as authors. Such publications would not only be of value at the individual level, but also identify NorMER as a coherent center, which is an important message to send to the funders of NorMER and the public in general.