A5037626242- Marine and fisheries research
- Fish Ecology and Management Studies
- Marine Bivalve and Aquaculture Studies
- Marine animal studies overview
- Aquaculture Nutrition and Growth
- Oceanographic and Atmospheric Processes
- Marine and coastal ecosystems
- Reproductive biology and impacts on aquatic species
- Water Quality Monitoring Technologies
- Food Industry and Aquatic Biology
- Environmental Monitoring and Data Management
- Underwater Acoustics Research
- Underwater Vehicles and Communication Systems
- Ecology and biodiversity studies
- Arctic and Russian Policy Studies
- Coral and Marine Ecosystems Studies
- Crustacean biology and ecology
- Marine and environmental studies
- Aquatic Invertebrate Ecology and Behavior
- Indigenous Studies and Ecology
- Economic and Social Issues
- Belt Conveyor Systems Engineering
- Library Science and Information Systems
- Lexicography and Language Studies
- Environmental Science and Water Management
Migration Institute of Australia
2022-2024
Johann Heinrich von Thünen-Institut
2011-2023
STMicroelectronics (France)
2022
Technical University of Denmark
2019
GEOMAR Helmholtz Centre for Ocean Research Kiel
2005-2013
Abstract Based on size selectivity data for more than 25 000 cod (Gadus morhua) collected during experimental trawl fishing with six different codends, all of which included a square mesh panel, we investigated the effect cod-release efficiency based panel area, position and stimulation escape response. results, were able to explain why BACOMA codend, applied in Baltic Sea directed fishery, releases juvenile efficiently, whereas other designs, including similar size, are less efficient. Our...
Abstract Otolith microstructure analysis and hydrodynamic modelling were combined to study growth patterns in young‐of‐the‐year (YoY) sprat, Sprattus sprattus , which sampled October 2002 the central Baltic Sea. The observed ‘window of survival’, approximated by distribution back‐calculated days first feeding (DFF), was narrow compared extended spawning season sprat Sea (mean± SD = 22 June ± 14.1 days) indicated that only individuals born summer survived until 2002. Within group survivors,...
The need to minimize bycatch of toothed whales (odontocetes) in gillnets has long been recognized, because they are often top predators and thus essential ecosystem resilience. It is likely that a key achieving this goal the improvement gillnet acoustic visibility, these species use underwater sonar for orientation. Previous work on increasing detectability echolocating animals by making nets more recognizable based trial error, without understanding fundamental properties tested...
The discussion of alternative harvest patterns in commercial fisheries has been raised by stock assessment and fishery modelers, especially the wider context balanced harvesting. But often, these theoretical approaches propose exploitation that are difficult to achieve within current limitations selectivity characteristics fishing gears, such as trawl gears. aim present study is broaden horizon for size gears demonstrating feasibility trawls. As a case study, we combined two well-known...
Abstract Herrmann, B., Mieske, Stepputtis, D., Krag, L. A., Madsen, N., and Noack, T. 2013. Modelling towing haul-back escape patterns during the fishing process: a case study for cod, plaice, flounder in demersal Baltic Sea cod fishery. – ICES Journal of Marine Science, 70: 850–863. The survival likelihood fish escaping through trawl codends may depend on when they escape. It is therefore relevant to investigate process actually attempt do from codends. This subject addressed by modelling...
Abstract Voss, R., Hinrichsen, H-H., Stepputtis, D., Bernreuther, M., Huwer, B., Neumann, V., and Schmidt, J. O. 2011. Egg mortality: predation hydrography in the central Baltic. – ICES Journal of Marine Science, 68: 1379–1390. Cod sprat are dominant fish species Baltic pelagic ecosystem, both great economic importance ecologically strongly interlinked. Management is challenged by highly variable recruitment success. Recent studies have identified hydrographic conditions during egg phase to...
Abstract The investigation of larval dispersal and retention, their variability dependence on wind conditions, has become a major topic in fisheries research owing to potential effects stock recruitment structuring. present study quantifies the wind‐induced retention herring highly productive coastal lagoon Western Baltic Sea. This lagoon, Greifswalder Bodden, represents main spawning area Spring‐Spawning Herring, that recently undergone continuous decline recruitment. tests whether this was...
Abstract The recruitment success of some herring stocks fluctuates strongly, and apparently, is often already determined during the early life stages, i.e. before metamorphosis. In studying survival stages its affecting factors, particularly those egg stage, it crucial to examine processes at spawning sites, which cannot be explored directly. A recent decline in Western Baltic spring-spawning (WBSSH) increases urgency filling knowledge gap for this stock, especially because one bottleneck...
Abstract A wind‐driven meso‐scale pattern of temperature, salinity and oxygen was found along a transect in the northern Bornholm Basin (southern Baltic Sea). Strong winds caused currents this transect, which shifted cold intermediate water (minimum: 3.6°C) towards south. The surveyed with towed CTD‐system hydroacoustics parallel to investigate distribution sprat, Sprattus sprattus balticus (Schn.) relation observed pattern. In those parts where observed, sprat were restricted layers below...
Abstract This article describes a method for the quantitative analysis of fish behaviour relative to selection devices in trawl gears. Based on video observations, estimates probabilities given event happen and establishes behavioural tree diagrams representing quantifying patterns relation device under assessment. Double bootstrapping is used account uncertainty originating from limited number observations natural variation behaviour. The here supplement standard catch data performance...
Shortening codend lastridge ropes can be an effective fishing gear modification to improve the size selection properties in diamond mesh codends. Lastridge attached selvedges withstand longitudinal forces created by catch building up and therefore, prevent meshes from closing. However, extent which should shortened maximize effect of this measure is unclear. Besides opening meshes, shortening also lead net folding, potentially have negative consequences for selectivity. In present study, we...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 489:177-195 (2013) - DOI: https://doi.org/10.3354/meps10405 Vertically resolved prey selectivity and competition of Baltic herring Clupea harengus sprat Sprattus sprattus Matthias Bernreuther1,3,*, Jörn Schmidt2,4, Daniel Stepputtis2,5, Axel Temming1 1Institute for Hydrobiology Fisheries Science, University...