A5040366091- Fish Ecology and Management Studies
- Marine and fisheries research
- Fish Biology and Ecology Studies
- Identification and Quantification in Food
- Reproductive biology and impacts on aquatic species
- Aquatic Invertebrate Ecology and Behavior
- Parasite Biology and Host Interactions
- Avian ecology and behavior
- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine Bivalve and Aquaculture Studies
- Marine and coastal ecosystems
- Forest Insect Ecology and Management
- Aquaculture Nutrition and Growth
- Bird parasitology and diseases
- Animal Behavior and Reproduction
- Coleoptera: Cerambycidae studies
- Coleoptera Taxonomy and Distribution
- Isotope Analysis in Ecology
- Ichthyology and Marine Biology
- Marine Toxins and Detection Methods
- Insect-Plant Interactions and Control
- Environmental and Biological Research in Conflict Zones
- Forest Ecology and Biodiversity Studies
- Genetic and phenotypic traits in livestock
- Marine Biology and Ecology Research
Nature Research Centre
2010-2024
Vilnius University
2008
Background. The round goby, Neogobius melanostomus (Pallas, 1814), is a recent invader in the Curonian Lagoon, SE Baltic Sea. As invasive species are among most severe threats for biodiversity loss and can induce food web alterations, development of goby population Lagoon its possible impacts on fish community entire ecosystem great scientific interest. This research reports expansion trophic role Lagoon. Materials methods. Occurrence abundance was investigated using beach seine gill nets at...
The round goby (Neogobius melanostomus) (Pallas, 1811), a recent fish invader of Ponto- Caspian origin, was first recorded in Lithuanian coastal waters the Baltic Sea 2002, and later found Curonian Lagoon. During 2007 survey, 5 locations inhabited by were northern part lagoon. Expansion species primarily observed along western coast, i.e. Spit, which contains hard bottoms. Information received from anglers indicates that newcomer occurs wharf localities as far to south Nida Town Ventė Cape....
Abstract Substantial population increases in the Great Cormorant (Phalacrocorax carbo sinensis) Lithuania since mid 1980s have given rise to complaints by fishermen and fish farmers that stocks of they target or cultivate are being depleted. In order test veracity these claims, we investigated dietary composition breeding colony at Juodkrantė on Curonian Spit, Lithuania, through analysis 220 pellets, collected during seasons 2005–2007. At least 25 taxa were identified sample, but only three...
Conflict arises in fisheries worldwide when piscivorous birds target fish species of commercial value. This paper presents a method for estimating size selectivity functions piscivores and uses it to compare predation selectivities Great Cormorants (Phalacrocorax carbo sinensis L. 1758) with that gill-net fishing on European perch (Perca fluviatilis population the Curonian Lagoon, Lithuania. Fishers often regard cormorants as an unwanted “satellite species”, but degree direct competition...
It is often assumed that recreational fishing has negligible influences on fish stocks compared to commercial fishing. However, for inland water bodies in densely populated areas, this assumption may not be supported. In study, we demonstrate variable stock recovery rates among different species with similar life histories a large productive freshwater ecosystem (Kaunas Reservoir, Lithuania), where previously intensive been banned since 2013. We conducted over 900 surveys of anglers from...
The aspects of the perch (Perca fluviatilis) population dynamics in Curonian Lagoon were evaluated based on age structure population, which was assessed using otoliths (N = 488) sampled 2009. Estimations done employing FAO FISAT II software. Analysis length-at-age data showed asymptotic length (L∞) 49.99 cm and growth curvature (K) 0.13 yr−1. fishing mortality (F) caused by commercial 40–45 mm mesh-sized gillnet fishery estimated to be 0.25, while natural (M) equal 0.24. relative yield per...
Survival rates among European eels, Anguilla anguilla (Linnaeus, 1758), on-grown using a formulated diet in commercial aquaculture facility, were compared with glass eels from the same cohort following their transition to natural prey laboratory. Treatments included zero, 42-day, and 196-day periods of grow-out prior 30-day experimental when fed Chironomus spp. larvae (10 tanks, each containing 240-L water 40 or 10 on-growing eels; 12:12 hr photoperiod; temperature 18°C). All survived, 87%...
Abstract Pikeperch ( Sander lucioperca ) is a European fresh and brackish water piscivorous fish, important as both key predator valuable commercial recreational fisheries species. There are concerns that some stocks depleted due to overfishing environmental changes. We review data collection population assessments currently used for nine pikeperch across six countries apply unified assessment framework evaluate status trends. For this we first standardised commercial, scientific,...
Three stochastic versions of the Gompertz growth model were used to parameterize total length (LT)-at-age data for perch Perca fluviatilis, an important target species commercial and recreational fishers a food predatory fishes aquatic birds. Each addresses heterogeneity by incorporating random parameters from specific positive distribution: Weibull, gamma or log-normal. The modelling outputs each version provide LT distributions selected ages percentiles at age both males females. results...
Round goby, Neogobius melanostomus (Pallas, 1814), responded significantly to conspecific skin extract by decreasing the frequency of opercular movements during first minute post-stimulus period, suggesting cryptic behaviour as antipredator reaction this species. Examination samples goby revealed presence club cells in epidermis, putative source chemical cues that induce reactions other fish species and may be round injury-released alarm signals. Observed change is evidence a response...
Abstract It is often assumed that recreational fishing has negligible impact on fish stocks compared to commercial fishing. Yet, for inland water bodies in densely populated areas, this unlikely be true. In study we demonstrate remarkably variable stock recovery rates among different species with similar life histories a large productive freshwater ecosystem (Kaunas Reservoir, Lithuania), where all been banned since 2013. We conducted over 900 surveys of anglers during period four years...
Detailed faunistic data on species composition of the supertribe Bariditae in Lithuania, Latvia, and Kaliningrad Region (Russia) is presented. A critical review literature this taxonomic group study area made. In total, presence six comprising four genera, Limnobaris dolorosa, L. t-album, Aulacobaris lepidii, Baris artemisiae, B. nesapia, Melanobaris laticollis, was confirmed for studu by recent material. Two species, coerulescens A. picirostris, could not be confirmed, spitzyi, Malvaevora...
Many inland ecosystems (lakes, rivers, reservoirs, lagoons) around the world undergo regular biological monitoring surveys, including abundance, biomass and size structure of fish communities. Yet, majority datasets for remain inaccessible. This is especially true historical from early middle 20th century, despite their immense importance establishing baselines ecosystem status (e.g., prior to manifestations climate change intensive fisheries impacts), assessing current stocks, more...
A rapid expansion of the continental subspecies Great Cormorant (Phalacrocorax carbo sinensis) has been recorded in Europe since 1980s. Evaluation genetic variability using molecular markers is necessary for investigation mechanisms formation newly established breeding populations eastern Baltic region (in Kaliningrad Russia and Lithuania). The samples were collected largest colonies Cormorants located on coast Curonian Lagoon Sea their smaller, later formed part Lithuania. After sequencing...