A5056431614- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Coral and Marine Ecosystems Studies
- Isotope Analysis in Ecology
- Fish Ecology and Management Studies
- Coastal and Marine Management
- Marine animal studies overview
- Marine and coastal ecosystems
- Sustainability and Ecological Systems Analysis
- Aquatic Ecosystems and Biodiversity
- Ocean Acidification Effects and Responses
- Conservation, Biodiversity, and Resource Management
- Aquaculture Nutrition and Growth
- Geology and Paleoclimatology Research
- Marine Biology and Ecology Research
- Aquatic and Environmental Studies
- Environmental Conservation and Management
- Species Distribution and Climate Change
- Marine and environmental studies
- Land Use and Ecosystem Services
- Marine Ecology and Invasive Species
- Food Industry and Aquatic Biology
- Fish Biology and Ecology Studies
- Ecosystem dynamics and resilience
- Marine and coastal plant biology
University of British Columbia
2016-2025
Ecopath International Initiative
2015-2025
Fisheries and Oceans Canada
2016-2025
Institut de Ciències del Mar
2024
Okanagan University College
2015-2024
Universidade Federal do Rio Grande do Norte
2024
NOAA Geophysical Fluid Dynamics Laboratory
2024
National Marine Fisheries Research Institute
2019
Newcastle University
2011
University of Miami
2009
The mean trophic level of the species groups reported in Food and Agricultural Organization global fisheries statistics declined from 1950 to 1994. This reflects a gradual transition landings long-lived, high level, piscivorous bottom fish toward short-lived, low invertebrates planktivorous pelagic fish. effect, also found be occurring inland fisheries, is most pronounced Northern Hemisphere. Fishing down food webs (that is, at lower levels) leads first increasing catches, then phase...
In 2010, the international community, under auspices of Convention on Biological Diversity, agreed 20 biodiversity-related "Aichi Targets" to be achieved within a decade. We provide comprehensive mid-term assessment progress toward these global targets using 55 indicator data sets. projected trends 2020 an adaptive statistical framework that incorporated specific properties individual time series. On current trajectories, results suggest despite accelerating policy and management responses...
Standardized diet compositions were derived for 97 species of marine mammals from published accounts stomach contents as well morphological, behavioural and other information. Diet was apportioned among eight categories prey types (benthic invertebrates, large zooplankton, small squids, pelagic fishes, mesopelagic miscellaneous fishes higher invertebrates). Trophic levels estimated each compared with estimates using stable isotope ratios. ranged 3.2–3.4 in baleen whales sea otters, to...
ABSTRACT Aim A large body of knowledge exists on individual anthropogenic threats that have an impact marine biodiversity in the Mediterranean Sea, although we know little about how these accumulate and interact to affect species ecosystems. In this context, aimed identify main areas where interaction between is more pronounced assess their spatial overlap with current protected Mediterranean. Location Sea. Methods We first identified high mammals, turtles, seabirds, fishes commercial or...
While the physical dimensions of climate change are now routinely assessed through multimodel intercomparisons, projected impacts on global ocean ecosystem generally rely individual models with a specific set assumptions. To address these single-model limitations, we present standardized ensemble projections from six marine forced two Earth system and four emission scenarios without fishing. We derive average biomass trends associated uncertainties across food web. Without fishing, mean...
Formal analyses of long-term global marine fisheries prospects have yet to be performed, because research focuses on local, species-specific management issues. Extrapolation present trends implies expansion bottom into deeper waters, serious impact biodiversity, and declining catches, the last possibly aggravated by fuel cost increases. Examination four scenarios, covering various societal development choices, suggests that negative now besetting can turned around, their supporting...
Abstract We estimate the biomass of high‐trophic level fishes in North Atlantic at a spatial scale 0.5° latitude by longitude based on 23 spatialized ecosystem models, each constructed to represent given year or short period from 1880 1998. extract over 7800 data points that describe abundance as function year, primary production, depth, temperature, latitude, ice cover and catch composition. then use multiple linear regression predict for all cells 1900 1950 1999. The results indicate has...
Ecopath with Ecosim (EwE) models are easier to construct and use compared most other ecosystem modelling techniques therefore more widely used by scientists managers. This, however, creates a problem quality assurance; address this we provide an overview of best practices for creating models. We describe the diagnostics that can be check thermodynamic ecological principles, highlight principles should balancing model. then pitfalls when comparing using Ecological Network Analysis indices....
Abstract There is a critical need for quantitative models that can help evaluate trade‐off decisions related to the impacts of harvesting and protection aquatic ecosystems within an ecosystem context. Ecosystem used such trade‐offs have capability capturing dynamic stability arise when predator‐prey interactions are restricted spatial temporal arenas. Foraging arenas appear common in systems created by wide range mechanisms, ranging from restrictions predator distributions response predation...
Projections of climate change impacts on marine ecosystems have revealed long-term declines in global animal biomass and unevenly distributed fisheries. Here we apply an enhanced suite ecosystem models from the Fisheries Marine Ecosystem Model Intercomparison Project (Fish-MIP), forced by new-generation Earth system model outputs Phase 6 Coupled (CMIP6), to provide insights into how projected will affect future ocean ecosystems. Compared with previous generation CMIP5-forced Fish-MIP...
Background Ecological attributes estimated from food web models have the potential to be indicators of good environmental status given their capabilities describe redundancy, changes, and sensitivity fishing. They can used as a baseline show how they might modified in future with human impacts such climate change, acidification, eutrophication, or overfishing. Methodology In this study ecological network analysis 105 marine were tested for variation traits ecosystem type, latitude, ocean...
The Mediterranean Sea has been defined "under siege" because of intense pressures from multiple human activities; yet there is still insufficient information on the cumulative impact these stressors ecosystem and its resources. We evaluate how historical (1950-2011) trends various ecosystems groups/species have impacted by changes in primary productivity (PP) combined with fishing pressure. investigate whole using a food web modelling approach. Results indicate that both PP pressure played...
Abstract Ecosim models have been fitted to time-series data for a wide variety of ecosystems which there are long-term that confirm the models' ability reproduce past responses many species harvesting. We subject these model harvest policies, including options based on harvesting each at its maximum sustainable yield (MSY) fishing rate. show widespread application single-species MSY policies would in general cause severe deterioration ecosystem structure, particular loss top predator...