A5034709388- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Coastal and Marine Management
- Fish Ecology and Management Studies
- Coral and Marine Ecosystems Studies
- Isotope Analysis in Ecology
- Marine Biology and Ecology Research
- Ichthyology and Marine Biology
- Marine and coastal ecosystems
- Fish Biology and Ecology Studies
- Marine animal studies overview
- International Maritime Law Issues
- Avian ecology and behavior
- Genetic diversity and population structure
- Aquatic life and conservation
- Identification and Quantification in Food
- Aquatic and Environmental Studies
- Environmental DNA in Biodiversity Studies
- Aquatic Ecosystems and Biodiversity
- Tensor decomposition and applications
- Cephalopods and Marine Biology
- Advanced Neuroimaging Techniques and Applications
- Geology and Paleoclimatology Research
- Environmental and Social Impact Assessments
- Environmental Science and Water Management
Hochschule Bremerhaven
2018-2024
Johann Heinrich von Thünen-Institut
2009-2024
Institute of Fisheries and Aquaculture
2016
Hamburg Institute of International Economics
2016
Landesforschungsanstalt für Landwirtschaft und Fischerei Mecklenburg-Vorpommern
2006
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2002-2004
Senckenberg am Meer
2003
German Research Institute for Public Administration
2002
Technologie- und Förderzentrum im Kompetenzzentrum für Nachwachsende Rohstoffe
1992-1995
Mapping trawling pressure on the benthic habitats is needed as background to support an ecosystem approach fisheries management. The extent and intensity of bottom European continental shelf (0–1000 m) was analysed from logbook statistics vessel monitoring system data for 2010–2012 at a grid cell resolution 1 × min longitude latitude. Trawling profiles with seabed impact surface subsurface level are presented 14 management areas in North-east Atlantic, Baltic Sea Mediterranean Sea. footprint...
Significance We conducted a systematic, high-resolution analysis of bottom trawl fishing footprints for 24 regions on continental shelves and slopes five continents New Zealand. The proportion seabed trawled varied >200-fold among (from 0.4 to 80.7% area depth 1,000 m). Within 18 regions, more than two-thirds remained untrawled during study periods 2–6 years. Relationships between metrics total trawling activity footprint were strong positive, providing method estimate where data are not...
Abstract Aim The life history of a species is determined by trade‐offs between growth, survival and reproduction to maximize fitness in given environment. Following theoretical model, we investigate whether the composition marine fish communities can be understood terms set life‐history strategies prevalence follows specific spatial patterns that related Location European seas. Time period 1980‐2014. Major taxa studied Fish. Methods An extensive scientific bottom trawl surveys was collected...
Abstract Probst, W. N., Stelzenmüller, V., and Fock, H. 2012. Using cross-correlations to assess the relationship between time-lagged pressure state indicators: an exemplary analysis of North Sea fish population indicators. – ICES Journal Marine Science, 69: 670–681. A sustainable ecosystem-based management, as postulated by European Union-Marine Strategy Framework Directive (MSFD), requires a sound understanding cause–effect relationships human pressures ecosystem states. In this study, are...
Abstract Marine spatial planning (MSP) requires spatially explicit environmental risk assessment (ERA) frameworks with quantitative or probabilistic measures of risk, enabling an evaluation management scenarios. ERAs comprise the steps identification, analysis, and evaluation. A review in context revealed a synonymous use concepts vulnerability impact, need to account for uncertainty lack clear link between analysis In case study, we addressed some identified gaps predicted changing current...
Lesser black-backed gulls Larus fuscus are considered to be mainly pelagic. We assessed the importance of different landscape elements (open sea, tidal flats and inland) by comparing marine terrestrial foraging behaviours in lesser breeding along coast southern North Sea. attached GPS data loggers eight incubating birds collected information on diet habitat use. The recorded for 10-19 days allow flight-path reconstruction. foraged both offshore inland areas, but rarely flats. Targets...
We present estimates of length-weight relationships (LWRs) 55 mesopelagic fish species 13 taxonomic families based on data collected in the eastern tropical North Atlantic (ETNA) March/April 2015. Our include novel records for 19 species, while 25 LWRs are most robust sample sizes, and 21 they representative size ranges available up to now. In 31 body lengths were within maximum range recorded area, with new species. Most values b fell between 2.5 3.5 a mean exponent 3.08 (median 3.12)...
Abstract Maritime spatial planning (MSP) and fishery management may generate extra costs for fisheries by constraining fishers activity with conservation areas new utilizations of the sea. More energy-efficient are also likely to alter existing fishing patterns, which already vary from vessel vessel. The impact assessment plans involving should be based on quantitative bioeconomic analyses that take into account individual decisions, trade-offs in cross-sector conflicting interests. We use a...
Abstract Pedersen, S. A., Fock, H., Krause, J., Pusch, C., Sell, A. L., Böttcher, U., Rogers, I., Sköld, M., Skov, Podolska, Piet, G. and Rice, J. C. 2009. Natura 2000 sites fisheries in German offshore waters.–ICES Journal of Marine Science, 66: 155–169. The principal objective selected as part is to achieve or maintain a favourable conservation status habitats species named the EU Birds Habitats directives. In exclusive economic zone, habitat types protected by this legislation are...
Abstract Sonntag, N., Schwemmer, H., Fock, H.O., Bellebaum, J., and Garthe, S. 2012. Seabirds, set-nets, conservation management: assessment of conflict potential vulnerability birds to bycatch in gillnets. – ICES Journal Marine Science, 69: 578–589. We addressed the issue bird set-nets southern Baltic Sea by (i) assessing diving drowning developing a index based on weighted abundance, (ii) providing information set-net fishing activities, (iii) using spatial overlap approach indicate...
Abstract Aim Previous analyses of marine fish species richness based on presence‐absence data have shown changes with latitude and average size, but little is known about the underlying processes. To elucidate these processes we use metabolic, neutral descriptive statistical models to analyse how responds maximum length, abundance, temperature, primary production, depth, longitude, while accounting for differences in catchability, sampling effort mesh size. Data Results from 53,382 bottom...