A5075364350- Marine and fisheries research
- Fish Ecology and Management Studies
- Marine Bivalve and Aquaculture Studies
- Coral and Marine Ecosystems Studies
- Energy Efficiency and Management
- Smart Grid Energy Management
- Isotope Analysis in Ecology
- Renewable Energy and Sustainability
- Software Testing and Debugging Techniques
- Physics and Engineering Research Articles
- Coastal and Marine Management
- Electric Vehicles and Infrastructure
- Aquaculture Nutrition and Growth
- Formal Methods in Verification
- Public Administration and Political Analysis
- Advanced Battery Technologies Research
- Flexible and Reconfigurable Manufacturing Systems
- Digital Innovation in Industries
- Microgrid Control and Optimization
- Software Reliability and Analysis Research
- Network Packet Processing and Optimization
- Food Waste Reduction and Sustainability
- Injection Molding Process and Properties
- Erythropoietin and Anemia Treatment
- Model-Driven Software Engineering Techniques
Norwegian Institute of Marine Research
2016-2024
The FRAM Centre
2022-2024
Reykjavík University
2023
Fraunhofer Institute for Manufacturing Engineering and Automation
2017-2022
University of California, Santa Cruz
2019-2021
University of Stuttgart
2016-2020
Institute for Resource Efficiency and Energy Strategies
2020
University of Bergen
2011-2018
Stuttgart Observatory
2018
Leibniz University Hannover
2016
Iron deficiency (ID) is associated with adverse outcomes in heart failure (HF) but the underlying mechanisms are incompletely understood. Intracellular iron availability secured by two mRNA-binding iron-regulatory proteins (IRPs), IRP1 and IRP2. We generated mice a cardiomyocyte-targeted deletion of Irp1 Irp2 to explore functional implications ID independent systemic anaemia.Iron content cardiomyocytes was reduced Irp-targeted mice. The animals were not anaemic did show phenotype under...
Abstract Population regulation is a central concept in ecology, yet many cases its presence and the underlying mechanisms are difficult to demonstrate. The current paradigm maintains that marine fish populations predominantly regulated by density‐dependent recruitment. While it known somatic growth can be present too, general importance remains unknown most practical applications neglect it. This study aimed close this gap for first time quantifying comparing density dependence recruitment...
Abstract Recruitment dynamics are challenging to assess or predict because of the many underlying drivers that vary in their relevance over time and space. Stock size, demographic trait composition, condition distribution spawning fish spatio‐temporal trophic environmental interactions all influence recruitment processes. Exploring common patterns among stocks linking them potential may therefore provide insights into key mechanisms dynamics. Here, we analysed stock‐recruitment data 64 from...
Abstract Impacts of climate change on ocean productivity sustaining world fisheries are predominantly negative but vary greatly among regions. We assessed how 39 resources—ranging from data‐poor to data‐rich stocks—in the North East Atlantic most likely affected under intermediate emission scenario RCP4.5 towards 2050. This region is one productive waters in subjected pronounced change, especially northernmost part. In this impact assessment, we applied a hybrid solution combining expert...
Abstract Management strategy evaluation (MSE) is the state‐of‐the‐art approach for testing and comparing management strategies in a way that accounts multiple sources of uncertainty (e.g. monitoring, estimation, implementation). can help identify are robust to about life history target species its relationship other food web. Small pelagic fish anchovy, herring sardine) fulfil an important ecological role marine webs present challenges use MSE simulation‐based approaches. This due...
The ocean is facing multiple pressures from human activities, including the effects of climate change. Science has a prominent role in identifying problems and communicating these to society. However, scientists are also increasingly taking an active developing solutions, strategies for adapting mitigating change, increasing food security, reducing pollution. Transmitting solutions society changes our narrative about motivates actions. United Nations triple initiatives this decade—the...
Abstract Zimmermann, F., and Heino, M. 2013. Is size-dependent pricing prevalent in fisheries? The case of Norwegian demersal pelagic fisheries. – ICES Journal Marine Science, 70: . It is commonly acknowledged that body weight fish a key factor determining market value landed catch, thus influencing optimal harvest strategies. However, management strategy evaluations bioeconomic modelling, size often an overlooked economic parameter, there are no systematic studies on the prevalence pricing....
Abstract Fishery-dependent data are frequently used to inform management decisions. However, inferences about stock development based on commercial such as Catch-Per-Unit-Effort (CPUE) can be severely biased due a phenomenon known technological creep, where fishing technology improves over time. Here we show how trap improvement nine decades has driven creep in European lobster ( Homarus gammarus ) fishery. We combined data, experimental with contemporary and older types, information...
According to the objectives of Frontiers in Ocean Sustainability's Blue Food Provision section, our aim is contribute addressing rising challenges created on marine resources due global change, unsustainable practices, regulatory barriers, and other constraints. We focus existing emerging knowledge, technologies tools build capacity maximize contribution food systems security (i.e., fisheries aquaculture), nutrition affordable healthy diets, social equality, ensuring achievement United...
Fishing reduces stock size and shifts demographics, selective mortality may also lead to evolutionary changes. Previous studies suggest that traits change evolutionarily because of fishing on decadal time scales. Here we examine the potential bioeconomic impacts fishing-induced change. We used a life-history model with dynamics based evolving maturation age, which has consequences for size-at-age, coupled module describes costs economic yield. Size-dependent natural trawl-like are drivers...
Abstract Space is a critical component of fisheries management. Despite this, very few the world's fish and shellfish stocks are currently assessed using methods that spatially structured. In Northeast Atlantic, northern shrimp in North Sea Skagerrak, structured assessment model. This metapopulation model includes two spatial units (the Norwegian Deep Skagerrak), however, recent past, fishery on also occurred third neighbouring fishing area, Fladen Ground. Here, we have reconstructed...
Body size is a key parameter influencing demographic characteristics of fish populations as well market value landed catch. Yet in bioeconomic modelling, body often an overlooked biological and economic parameter. Here we evaluate how size-dependent pricing influences optimal harvest strategies model parameterized for two pelagic fisheries, those targeting Atlantic herring ( Clupea harengus ) mackerel Scomber scombrus ), Norway. In our model, positively clearly shifts towards lower rates...
Precision feeding aims to provide the correct amount of feed farmed animals for optimal growth and performance avoid waste. However, knowledge underlying meal-to-meal variability in voluntary intake species is still limited. This study examined relationship between meals, deprivation time (pellets) consumed by Atlantic salmon post smolts. The data was collected from individual fish handfed satiety without social interaction three independent short-term (6-12 days) experiments. fixed...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 563:185-195 (2017) - DOI: https://doi.org/10.3354/meps11996 Taking animal breeding into wild: regulation of fishing gear can make fish stocks evolve higher productivity Fabian Zimmermann1,2,*, Christian Jørgensen2,3 1Institute Research and Hjort Centre for Ecosystem Dynamics, PO Box 1870 Nordnes, 5817 Bergen,...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 547:211-217 (2016) - DOI: https://doi.org/10.3354/meps11625 Are negative intra-specific interactions important for recruitment dynamics? A case study of Atlantic fish stocks Daniel Ricard1,4,*, Fabian Zimmermann2,3, Mikko Heino2,3 1Biology Centre AS CR, v.v.i., Institute Hydrobiology, České Budějovice 370 05,...
Uncertain and inaccurate estimates are a prevailing problem in stock assessment, despite increasingly sophisticated estimation methods substantial usage of scientific financial resources. Annual surveys assessment group meetings require frequent use research vessels skilled staff are, therefore, particularly costly. This data- work-intensive approach is often considered paramount for reliable risk management. However, it remains an open question whether the benefits increasing effort...
Control of appetite and feed intake in fish larvae are still largely unexplored. Two the key players controlling vertebrate's cholecystokinin (CCK) peptide YY (PYY). Here we investigated mRNA expression pyy, cck receptors (cckr) brain (head) gut Atlantic halibut response to three consecutive meals. We used Artemia nauplii cysts that commonly ingested by when present as inert feed, water-soluble extracts attractants stimulate appetite. Cyst was not affected use overall ingestion rate low....
Abstract Spatio-temporal models are essential tools for estimating abundance indices and quantifying the associated uncertainty. Time series of index uncertainties can be used to objectively determine influence each has on assessment. This involve reducing in years with limited data. However, incorporating uncertainty age-length conversion into assessment remained a challenge. In this research, we propose an estimation approach that combines abundance-at-length model age-at-length generate...
Abstract Reliable stock assessments are essential for successful and sustainable fisheries management. Advanced assessment methods expensive, as they require age‐ or length‐structured catch detailed fishery‐independent data, which prevents their widespread use, especially in developing regions. Furthermore, modern management increasingly includes socio‐economic considerations. Integrated ecological‐economic advice can be provided by bio‐economic models, but this requires the estimation of...
Abstract Fishing leads to truncation of a population's age and size structure. However, large‐sized fish are usually more valuable per unit weight than small ones. Nevertheless, these size‐related factors have mostly been ignored in bioeconomic modeling. Here, we present simple extension the Gordon–Schaefer model that accounts for variations mean individual catch weight, derive feedback rule optimal harvest this setting. As has no population structure, effects be accounted indirectly. Here...