A5078632684- Fish Ecology and Management Studies
- Marine and fisheries research
- Fish Biology and Ecology Studies
- Marine Bivalve and Aquaculture Studies
- Reproductive biology and impacts on aquatic species
- Identification and Quantification in Food
- Aquaculture Nutrition and Growth
- Water Quality Monitoring Technologies
- Isotope Analysis in Ecology
- Genetic and phenotypic traits in livestock
- Aquatic Invertebrate Ecology and Behavior
- Coral and Marine Ecosystems Studies
- UAV Applications and Optimization
- Retinal Imaging and Analysis
- Water Quality and Pollution Assessment
- Advanced Technologies in Various Fields
- Atmospheric and Environmental Gas Dynamics
- Aquaculture disease management and microbiota
- Fish biology, ecology, and behavior
- Avian ecology and behavior
- COVID-19 impact on air quality
- Environmental Toxicology and Ecotoxicology
- Underwater Vehicles and Communication Systems
- Cruise Tourism Development and Management
- Coastal and Marine Management
Nature Research Centre
2011-2024
University of Tasmania
2023
The northern pike (Esox lucius) is an iconic predatory fish species of significant recreational value and ecological role in the Baltic Sea. Some earlier studies indicate local declines region, but a thorough spatial evaluation regional population trends Sea lacking. In this study, we collate data from 59 unique time-series fisheries landings fishery-independent monitoring programs to address temporal populations since mid-2000′s eight countries surrounding common analysis considering all...
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...
As the popularity of recreational fishing gathers global momentum, so does importance knowing number active anglers and their spatial behaviour. Conventional counting methods, however, can be inaccurate time-consuming. Here we present two novel methods to monitor applied in Kaunas water reservoir (ca 65 km2), Lithuania, comparing performance a conventional visual count. First, employed remotely piloted fixed wing drone which conducted 39 missions distributed over one year compared its...
It is well recognized that COVID-19 lockdowns impacted human interactions with natural ecosystems. One example recreational fishing, which, in developed countries, involves approximately 10% of people. Fishing licence sales and observations at angling locations suggest fishing effort increased substantially during lockdowns. However, the extent duration this increase remain largely unknown. We used four years (2018-2021) high-resolution data from a personal fish-finder device to explore...
Abstract Hydropower plants (HPP) are considered to be one of the major threats survival European eels when they migrate downstream along inland water bodies during early part their annual journey spawning area in Sargasso Sea. There 98 HPPs Lithuania and thousands throughout Europe. Numerous studies describe HPP induced mortality rates among as variable depending on local, environmental, technical factors. This heterogeneity effect complicates theoretical extrapolation eel arising from...
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...
Citizen science platforms, social media and smart phone applications enable the collection of large amounts georeferenced images. This provides a huge opportunity in biodiversity ecological research, but also creates challenges for efficient data handling processing. Recreational small-scale fisheries is one fields that could be revolutionised by efficient, widely accessible machine learning-based processing Most non-commercial inland coastal are considered poor rarely assessed, yet they...
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,...
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 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...
This study aimed to assess the health status of Carassius gibelio, a comparatively tolerant fish species, in largest coastal lagoon Europe – Curonian Lagoon. Haematocrit and glucose levels were evaluated as reliable biomarkers stress responses fish. Additionally, non-specific physiological biomarkers, including hepatosomatic index condition factor, utilized environmental quality Fish samples collected from two sites: southern part Klaipėda port, known Kiaulės Nugara Island, central Lagoon...
Escapement success and migration patterns of silver eels Anguilla anguilla (L.) was studied by acoustic telemetry in three natural free-flowing one dammed river Curonian Lagoon Lithuania.Mean downstream speed escapement were almost the same shorter 210 km (53%, 10.7 km•day -1 ) considerably longer 300-480 rivers (52.4%, 13.6 ).Despite similarity between (14.6 to that rivers, significantly higher (71%) Lagoon.Although a majority Lithuania start migrating spring, peak eel into Baltic Sea...
Abstract It is manifest that COVID-19 lockdowns extensively impacted human interactions with natural ecosystems. One example recreational fishing, an activity which involves nearly 1 in 10 people developed countries. Fishing licence sales and direct observations at popular angling locations suggest fishing effort increased substantially during lockdowns. However, the extent duration of this increase remain largely unknown due to a lack objective data. We used four years (2018 2021)...
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...