A5015250271- Marine and coastal ecosystems
- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Marine animal studies overview
- Fish Ecology and Management Studies
- Aquaculture Nutrition and Growth
- Species Distribution and Climate Change
- Marine Biology and Ecology Research
- Bat Biology and Ecology Studies
- Reproductive biology and impacts on aquatic species
- Water Quality and Pollution Assessment
- Avian ecology and behavior
- Aquatic Ecosystems and Phytoplankton Dynamics
- Helminth infection and control
- Water Quality Monitoring and Analysis
- Coccidia and coccidiosis research
- Interdisciplinary Research and Collaboration
- Ichthyology and Marine Biology
- Bartonella species infections research
- Groundwater and Isotope Geochemistry
- Radio Astronomy Observations and Technology
- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Astrophysics and Cosmic Phenomena
- Astronomical Observations and Instrumentation
University of Turku
2004-2024
TU Wien
2021
Turku University of Applied Sciences
2021
The distribution ranges and spatio‐temporal patterns in the occurrence activity of boreal bats are yet largely unknown due to their cryptic lifestyle lack suitable efficient study methods. We approached issue by establishing a permanent passive‐acoustic sampling setup spanning area Finland gain an understanding on how latitude affects bat species composition northern Europe. recorded calls were semi‐automatically identified for three target taxa; Myotis spp., Eptesicus nilssonii or...
In 2015 a long-term, nationwide tick and tick-borne pathogen (TBP) monitoring project was started by the Finnish Tick Project Research Station network (RESTAT), with goal of producing temporally geographically extensive data regarding exophilic ticks in Finland. current study, we present results from first four years this collaboration. Ticks were collected cloth dragging 11 research stations across Finland May-September 2015-2018 (2012-2018 Seili). Collected screened for twelve different...
Long term monitoring results from mid 1995 to the end of 2000 quasar observations at 22, 37 and 87 GHz done Metsähovi radio observatory are presented. Approximately 15 700 published here.
Global climate change can affect the energy content of fish by altering their lipid physiology and consumption. We investigated effects different environmental stressors on Baltic herring (Clupea harengus membras) from spawning ground samples that were collected annually in northern Sea. During 1987–2014, average muscle decreased 5%–6% (wet mass) to 1.5% mass). Generalized linear mixed models indicated sea water salinity size stock explained best declining trend content. estimated amount...
Spatiotemporal patchiness of plankton and appropriate sampling strategy are crucial considerations for long-term studies dynamics, determining the confidence with which statistically significant ecological changes will be detected attributed to drivers. We analyze spatiotemporal variability Baltic Sea zooplankton using historical data from various monitoring programs. determined scales highest temporal spatial variability, focusing on distances time periods shorter than 100 km 90 days....
Blooms of cyanobacteria are recurrent phenomena in coastal estuaries. Their maximum abundance coincides with the productive period zooplankton and pelagic fish. Experimental studies indicate that diazotrophic, i.e. dinitrogen (N2)-fixing cyanobacterial (taxonomic order Nostocales) blooms affect zooplankton, as well other phytoplankton. We used multidecadal monitoring data from one archipelago station (1992–2013) ten open sea stations (1979–2013) Baltic Sea to explore potential bottom-up...
Temperature modifies the reproductive success of fish, yet, in many species, we lack information on its role early development. In this study, effect temperature relation between maternal traits (length, age, somatic condition, and muscle lipid ovarian thyroid hormone concentrations), egg quality (fertilization success, development rate, mortality, hatching success), offspring (size-at-hatch, yolk sac size, proportion malformations) were studied Baltic herring ( Clupea harengus membras)...
The lipid reserves and occurrence of the cold-stenothermic, omnivorous copepod Limnocalanus macrurus were studied in Bothnian Sea (northern Baltic Sea) during spring summer 2013–2014 with a special emphasis on fatty acid composition adults their potential food. individual total wax ester (WE) content, determined from size oil sacs prosoma, ranged average 1.3 to 2.6 µg, showed decreasing trend towards September. Lipids dominated by acids 16:0, 18:1(n-9), 18:2(n-6), 20:5(n-3) 22:6(n-6),...
We report observations of vateritic crystallization in the sagittal otoliths Baltic herring Clupea harengus membras northern Sea. While existence vaterite calcium carbonate matrix has been observed various species globally, reports from brackish Sea are few number. Large variation frequency 1984, 1988, 1997, 2010 and 2017 was observed, suggesting that phenomenon is not static more long-term studies should be conducted search ultimate causing factors.
During 2014-2019, the prevalence of Corynosoma spp., a parasite species in great cormorants (Phalacrocorax carbo spp.) and Baltic herring (Clupea harengus membras), was studied Archipelago Bothnian Seas northern Sea. These results suggest that may act as definitive host for these acanthocephalan parasites. Adults were more infected with parasites than juveniles, which could be due to their larger size. A lower spp. juveniles because smaller eat fish have less We found most abundant...
In fish, the lipid resources of female form a link between environment and progeny, contributing to contents egg yolk. Variation environmental conditions is therefore expected affect quality via maternal pathways, reflecting female’s response factors before spawning. We investigated content lipids thyroid hormones in ovary eggs Baltic herring during 1988–2019, when salinity Sea first declined then stabilized lower level, winters varied severe mild. The total spawning females decreased by...
Abstract To build a forecasting tool for the state of eutrophication in Archipelago Sea, we fitted Generalized Additive Mixed Model (GAMM) to marine environmental monitoring data, which were collected over years 2011–2019 by an automated profiling buoy at Seili ODAS-station. The resulting “Seili-index” can be used predict chlorophyll- α (chl-a) concentration seawater number days ahead using temperature forecast as covariate. An array test predictions with two separate models on 2019 data set...
The distribution ranges and spatio-temporal patterns in the occurrence activity of boreal bats are yet largely unknown due to their cryptic lifestyle lack suitable efficient study methods. We approached issue by establishing a permanent passive-acoustic sampling setup spanning area Finland gain an understanding on how latitude affects bat species composition northern Europe. recorded calls were semi-automatically identified for three target taxa; Myotis spp., Eptesicus nilssonii or...
Abstract To build a forecasting tool for the state of eutrophication in Archipelago Sea, we fitted Generalized Additive Mixed Model (GAMM) to marine environmental monitoring data, which were collected over years 2011-2019 by an automated profiling buoy at Seili ODAS-station. The resulting “Seili-index” can be used predict chlorophyll- α (chl-a) concentration seawater number days ahead using temperature forecast as covariate. An array test predictions with two separate models on 2019 data set...