Browsing by Subject "north-sea"
Now showing items 1-20 of 34
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21st century fisheries management: a spatio-temporally explicit tariff-based approach combining multiple drivers and incentivising responsible fishing
(Oxford University Press (OUP), 2012-02-26)Traditionally fisheries management has focused on biomass and mortality, expressed annually and across large management units. However, because fish abundance varies at much smaller spatio-temporal scales, fishing mortality ... -
A review of the past, the present, and the future of fishers' knowledge research: a challenge to established fisheries science
(Oxford University Press (OUP), 2014-10-03)Fishers' knowledge research is an approach to fisheries research that has a relatively long history, yet has generally failed to become integrated into the fisheries science mainstream alongside approaches that rely primarily ... -
Assessing the state of pelagic fish communities within an ecosystem approach and the european marine strategy framework directive
(Oxford University Press (OUP), 2014-02-20)Pelagic fish are key elements in marine foodwebs and thus comprise an important part of overall ecosystem health. We develop a suite of ecological indicators that track pelagic fish community state and evaluate state of ... -
Benthos distribution modelling and its relevance for marine ecosystem management
(Oxford University Press (OUP), 2014-06-19)Marine benthic ecosystems are difficult to monitor and assess, which is in contrast to modern ecosystem-based management requiring detailed information at all important ecological and anthropogenic impact levels. Ecosystem ... -
Continental shelf-wide response of a fish assemblage to rapid warming of the sea
(Elsevier BV, 2011-09-01)Climate change affects marine biological processes from genetic to ecosystem levels [1-3]. Recent warming in the northeast Atlantic [4, 5] has caused distributional shifts in some fish species along latitudinal and depth ... -
Dissolved azaspiracids are absorbed and metabolized by blue mussels (mytilus edulis)
(Elsevier BV, 2013-04-01) -
Does the lack of mannitol accumulation in an isolate ofrhodella maculata(rhodellophyceae, rhodophyta) from the brackish baltic sea indicate a stressed population at the distribution limit?
(Informa UK Limited, 2010-11-01)The unicellular red alga Rhodella maculata Evans is reported for the first time from the central Baltic Sea (habitat salinity 5 psu). To evaluate whether this Baltic isolate is locally adapted to the brackish environment, ... -
Emission of iodine-containing volatiles by selected microalgae species
(Copernicus GmbH, 2014-12-15)In this study we present the results of an emission study of different phytoplankton samples in aqueous media treated with elevated ozone levels. Halocarbon measurements show that the samples tested released bromoform and ... -
Estimating seabed pressure from demersal trawls, seines, and dredges based on gear design and dimensions
(Oxford University Press (OUP), 2015-06-09)This study assesses the seabed pressure of towed fishing gears and models the physical impact (area and depth of seabed penetration) from trip-based information of vessel size, gear type, and catch. Traditionally fishing ... -
Fisheries bycatch data provide insights into the distribution of the mauve stinger (pelagia noctiluca) around ireland
(Oxford University Press (OUP), 2010-12-22)There is concern that jellyfish populations are proliferating in the Northeast Atlantic and that their socio-economic impacts will increase. Using information from the Irish Groundfish Survey, data are presented on the ... -
Fishing and environment drive spatial heterogeneity in celtic sea fish community size structure
(Oxford University Press (OUP), 2011-08-20)The Large Fish Indicator (LFI) is a univariate size-based indicator of fish community state that has been selected to support the OSPAR fish community Ecological Quality Objective (EcoQO). To operate this EcoQO, a survey-based ... -
Implementing balanced harvesting: practical challenges and other implications
(Oxford University Press (OUP), 2016-01-13)Balanced harvesting (BH) has been proposed as an alternative to the paradigm of more selective fishing as practiced in most European and North American fisheries management. We examine options for the implementation of BH ... -
In situ quantification of bioturbation using time-lapse fluorescent sediment profile imaging (f-spi), luminophore tracers and model simulation
(Inter-Research Science Center, 2004-01-01)In order to link actual biological data on bioturbation to the abstract parameters in bioturbation models, high-resolution data on the frequency and lengths of particle displacements are required. The temporal variation ... -
Inclusion of ecological, economic, social, and institutional considerations when setting targets and limits for multispecies fisheries
(Oxford University Press (OUP), 2017-01-28)Targets and limits for long-term management are used in fisheries advice to operationalize the way management reflects societal priorities on ecological, economic, social and institutional aspects. This study reflects on ... -
Integrating vessel monitoring systems (vms) data with daily catch data from logbooks to explore the spatial distribution of catch and effort at high resolution
(Oxford University Press (OUP), 2010-09-06)Vessel monitoring systems (VMS) automatically collect positional data from fishing vessels, and the data can be linked to catch data from logbooks to provide a census of spatially resolved catch-and-effort data. The most ... -
Long- and short-term consequences of a nephrops trawl fishery on the benthos and environment of the irish sea
(Oxford University Press (OUP), 2000-10-01) -
Managing a complex population structure: exploring the importance of information from fisheries-independent sources
(Oxford University Press (OUP), 2014-06-25)Natural resource managers aim to manage fish stocks at sustainable levels. Often, management of these stocks is based on the results of analytical stock assessments. Accurate catch data, which can be attributed to a specific ... -
Otolith shape analysis: its application for discriminating between stocks of irish sea and celtic sea herring (clupea harengus) in the irish sea
(Oxford University Press (OUP), 2008-12-01)The extensive movement of Celtic Sea juvenile Atlantic herring (Clupea harengus) during the first year of life into the Irish Sea results in two stocks of herring living together on Irish Sea nursery grounds: the resident ... -
Plankton distributions in relation to physical oceanographic features on the southern malin shelf, august 1996
(Oxford University Press (OUP), 1998-12-01)The distribution of plankton in relation to physical oceanographic features on the southern Malin Shelf and in the North Channel of the Irish Sea was investigated during August 1996. The near surface 13.5 degrees C isotherm ... -
Potential novel habitat created by holdfasts from cultivated laminaria digitata: assessing the macroinvertebrate assemblages
(Inter-Research Science Center, 2016-02-25)Interest in the cultivation of native kelp species is increasing within Europe. Observations of seaweed farms suggest that they may act as a habitat for associated species, potentially altering the richness of the local ...