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41
المؤلفون: Nils-Roar Hareide, Philip H. McMullen, David J. Peach, Myles C. Mulligan, Robert Misund, Dominic Rihan, Philip A. Large, Xavier Harlay, Peter Randall, Norman Graham
مصطلحات موضوعية: Stock assessment, Future studies, Ecology, biology, sea, lost gear, Grey literature, Aquatic Science, Oceanography, biology.organism_classification, deep-water gillnets, ghost fishing, Deep water, Bycatch, Fishery, Geography, Centroscymnus coelolepis, gillnet retrieval, continental-slope, Ecology, Evolution, Behavior and Systematics, management
الوصف: Large, P. A., Graham, N. G., Hareide, N-R., Misund, R., Rihan, D. J., Mulligan, M. C., Randall, P. J., Peach, D. J., McMullen, P. H., and Harlay, X. 2009. Lost and abandoned nets in deep-water gillnet fisheries in the Northeast Atlantic: retrieval exercises and outcomes. – ICES Journal of Marine Science, 66: 323–333. The methods used and the results, including estimates of ghost catches present at the time of retrieval, from Irish and UK (England and Wales) gillnet retrieval exercises carried out in deep-water gillnet fisheries west of the British Isles are described. Summaries of the exercises are currently found only in the grey literature, and there is a need to make them more widely available to the scientific community. The fisheries are currently principally for anglerfish (mainly Lophius piscatorius), along with a small bycatch of deep-water sharks [mainly leafscale gulper shark (Centrophorous squamosus) and Portuguese dogfish (Centroscymnus coelolepis)]. The methods used and the results from retrieval exercises in the Norwegian Greenland halibut (Reinhardtius hippoglossus) gillnet fishery are also presented. It is suggested that the efficiency of the Norwegian retrieval gear (which was used in all but one of the retrieval exercises described) be investigated under a range of conditions using an attached underwater camera. The outcomes from this could be used to improve the design of retrieval gear and future gillnet retrieval survey/mitigation exercises. Suggestions are made to improve the format and interpretation of results from future retrieval surveys and to enhance their value to fishery managers and stock assessment scientists. The importance of the continued need for structured gillnet retrieval exercises in deep-water gillnet fisheries is emphasized, and suggestions are made for conducting future studies.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dbc8acfe2fb0adf71ade24159437afcTest
http://hdl.handle.net/10379/12385Test -
42تقرير
المؤلفون: Victoria Bendall (10887996), Macdara Ó Cuaig (14319990), Pieter-Jan Schön (12772778), Stuart Hetherington (11370081), Mike Armstrong (566314), Norman Graham (14318681), David Righton (2914835)
مصطلحات موضوعية: Fisheries and aquaculture, Technologies and data, Celtic Seas (ICES Ecoregion), WKROUND 2012, spatio-temporal dynamics, cod, collaborative tagging programme
الوصف: Using data from mark recovery and electronic tag studies, we investigate the exchange of cod between three adjacent cod management areas; the Irish Sea (ICES Division VIIa), Scottish waters (ICES Division IVa) and in the western English Channel and Celtic Sea (ICES Divisions VIIe-k). We evaluate 2209 archived and current mark recovery data (1960’s – to 2010) to assess the seasonal changes in distribution of cod within ICES Divisions VIa, VIIa and VIIe-g. In addition, we report on the results of a collaborative electronic data storage tagging (DST) programme of cod in the Irish and Celtic Sea, spanning the years 1999 to 2010. During this time, 710 DSTs have been deployed on cod between 43cm and 110cm, and 107 of the tags have been returned yielding over 11000 days of data. We use a tidal geolocation model to determine the daily locations of each cod to reconstruct in detail the migrations of cod tagged with DSTs. The results describe fundamental features of cod spatial ecology in the Irish and Celtic Sea, such as the seasonality of migration and habitat occupation and the potential impact upon sub-stock structure.
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43
المؤلفون: Peter H. Wiebe, Michel J. Kaiser, Craig S. Rose, Norman Graham
المصدر: ICES Journal of Marine Science. 64:1610-1611
مصطلحات موضوعية: Fishery, Geography, Ecology, business.industry, Fishing, Environmental resource management, Ecosystem, Fisheries management, Aquatic Science, Oceanography, business, Ecology, Evolution, Behavior and Systematics
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::2b6eec0135a62b9b5e48e0d8c6a4f327Test
https://doi.org/10.1093/icesjms/fsm142Test -
44دورية أكاديمية
المؤلفون: Michel J. Kaiser, Norman Graham, Craig S. Rose, Peter H. Wiebe
المساهمون: The Pennsylvania State University CiteSeerX Archives
الوصف: This session focused on the role of gear technology in the conservation and sustainable exploitation of fish stocks and other marine resources, and how it has contributed to more ecosystem-based approaches to fishery management that strive to fulfil the commitments of the World Summit on Sustainable Development (WSSD) and the Convention on Biodiversity (CBD). Within this context, Session II benefited from a keynote presentation by Simon Jennings and Andrew Revill (Jennings and Revill, 2007) that addressed precisely these issues. They highlighted the need for a decision-support framework or “toolbox ” that would allow managers to determine when it was appropriate or cost-effective to seek a solution to a particular environmental problem through technological solutions to gear design, or its use with other possible mitigation measures, such as effort reduction or area closures. Examples are well documented of gear technology providing
وصف الملف: application/pdf
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45دورية أكاديمية
المؤلفون: Edited Norman Graham, Hendrik Doerner
المساهمون: The Pennsylvania State University CiteSeerX Archives
المصدر: http://publications.jrc.ec.europa.eu/repository/bitstream/111111111/29998/1/lb-na-26330-en-n.pdfTest.
الوصف: Contact information STECF secretariat
وصف الملف: application/pdf
العلاقة: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.676.1414Test; http://publications.jrc.ec.europa.eu/repository/bitstream/111111111/29998/1/lb-na-26330-en-n.pdfTest
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46دورية أكاديمية
المؤلفون: Norman Graham, Richard S. T. Ferro, William A. Karp, Philip Macmullen
المساهمون: The Pennsylvania State University CiteSeerX Archives
مصطلحات موضوعية: bycatch, discards, fisheries managem
الوصف: Fishing practice, gear design, and the ecosystem approach—three case studies demonstrating the effect of management strategy on gear selectivity and discards
وصف الملف: application/pdf
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47دورية أكاديمية
المؤلفون: Sarah B. M. Kraak, Nick Bailey, Massimiliano Cardinale, Chris Darby, José A. A, De Oliveira, Margit Eero, Norman Graham, Steven Holmes, Tore Jakobsen, Er Kempf, Eskild Kirkegaard, John Powell, Robert D. Scott, E. John, Clara Ulrich, Willy Vanhee, Morten Vinther
المساهمون: The Pennsylvania State University CiteSeerX Archives
المصدر: http://oar.marine.ie/bitstream/10793/793/1/KraakTest et al 2012-Lessons from EU cod recovery plan.pdf.
الوصف: 2 The performance of the EU long-term management plan for cod stocks, in force since 2009, is analysed focusing on the human and institutional factors. The plan operates through landings quotas (TACs) and effort restrictions following a Harvest Control Rule, and deploys a novel instrument allowing Member States to ‘buy back ’ or increase fishing effort for fleet segments engaged in cod-avoidance measures. The stipulated fishing mortality reductions have not been achieved. On the positive side, the ‘buy-back’ instrument has led to increased uptake of selective gear and implementation of permanent and real-time temporary closures. On the negative side, ignoring the dimension of fishers as reactive agents in the design, the impact assessment, and the annual implementation of
وصف الملف: application/pdf
العلاقة: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.466.3865Test; http://oar.marine.ie/bitstream/10793/793/1/KraakTest et al 2012-Lessons from EU cod recovery plan.pdf
الإتاحة: http://oar.marine.ie/bitstream/10793/793/1/KraakTest et al 2012-Lessons from EU cod recovery plan.pdf
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48
المؤلفون: Britton Chance, Victor Legallais, Norman Graham
المصدر: Analytical Biochemistry. 67:552-579
مصطلحات موضوعية: Biophysics, Respiratory chain, chemistry.chemical_element, Photochemistry, Biochemistry, Oxygen, Electron Transport, Electron Transport Complex IV, Chemical kinetics, Electron transfer, Animals, Columbidae, Molecular Biology, Carbon Monoxide, Photolysis, Lasers, Myocardium, Electron Spin Resonance Spectroscopy, Monoxide, Cell Biology, Atmospheric temperature range, Mitochondria, Muscle, Freezing point, Cold Temperature, Kinetics, chemistry, Spectrophotometry, Flash photolysis, Cattle, Oxidation-Reduction
الوصف: The trapping of intermediates in the cytochrome oxidase-oxygen reaction is made possible by a three-step procedure: 1) Oxygenation of the ferrous cytochrome oxidase-carbon monoxide compound at a temperature sufficiently low that no ligand exchange with oxygen occurs (−20 to −30°C); 2) flash photolysis at a temperature sufficiently low that the subsequent reaction with oxygen can readily be measured with a multichannel spectrophotometer; 3) rapid cooling of the reaction in progress to a sufficiently low temperature that no further reaction takes place and detailed optical or electron paramagnetic resonance spectroscopy can be performed. Since the freezing point of the mitochondrial suspensions during oxygenation can be in the range of −20°C, only nondeleterious concentrations of ethylene glycol are employed. The reaction kinetics are observed in the solid state in small-diameter circular tubes suitable for rapid trapping. Efficient optical coupling to the sample tube for transmission spectroscopy and efficient laser photolysis are similarly provided by fiber optics coupling. The method is suitable for studying in detail three compounds of cytochrome oxidase and oxygen formed in the temperature range from −125°C upwards. In addition, the electron transfer processes of the respiratory chain are accurately delineated.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61749caa9201ff63085c88bbce6a4b21Test
https://doi.org/10.1016/0003-2697Test(75)90331-0 -
49
المؤلفون: John Sorge, Britton Chance, Norman Graham, Victor Legallais
المصدر: Analytical Biochemistry. 66:498-514
مصطلحات موضوعية: Time Factors, Optical measurements, Biophysics, Analytical chemistry, Wavelength channels, Biochemistry, Photometry, Optics, Nephelometry and Turbidimetry, Fluorometer, Methods, Animals, Molecular Biology, Brain Chemistry, Autoanalysis, Flavoproteins, Myoglobin, business.industry, Chemistry, Cell Biology, Catalase, NAD, Reflectivity, Rats, Spectrometry, Fluorescence, Transmission (telecommunications), Experimental system, Evaluation Studies as Topic, Spectrophotometry, Cytochromes, Flavoprotein fluorescence, business, Copper
الوصف: A simple turbine-driven multi-wavelength time-sharing apparatus affords flexibility and versatility in optical measurements and serves as a fluorometer, reflectometer, and spectrophotometer for four wavelength channels. As a reflectance fluorometer, nearly simultaneous readout of tissue reflectance and NADH or flavoprotein fluorescence can be obtained. As a transmission spectrophotometer and reflectometer, hemoproteins such as myoglobin, catalase, and cytochrome a + a3 with its copper component may be measured. This instrument offers the advantages of high speed of time-sharing, and simplicity, compactness, and flexibility not found in previous designs. In addition, it causes minimal acoustic and electrical disturbance to the experimental system.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9330563e38c37be453ddebd7fd5c058Test
https://doi.org/10.1016/0003-2697Test(75)90617-x -
50
المؤلفون: John Sorge, Norman Graham, Britton Chance, Victor Legallais
المصدر: Review of Scientific Instruments. 43:62-71
مصطلحات موضوعية: Physics, Flash (photography), Optics, Single beam, business.industry, Colorimeter, Dual wavelength, Transient (oscillation), business, Interference (wave propagation), Instrumentation, Time range, Light modulation
الوصف: Three methods are described for extending the time range of the dual wavelength spectrophotometric technique. First, a dual wavelength system employing interference filters (essentially a differential colorimeter) is described which employs no light modulation and thus gives operation down to the shortest time measurable in view of the system signal‐to‐noise (S/N) ratio. The second method employs dual wavelength light modulation and synchronizes the transient phenomena to the flash of the measuring light. While this method extends the time range down to that obtainable in view of S/N ratio of the optical system it is essentially a single beam method and does not compensate for optical artifacts that occur during a single flash of the measuring light. The third method extends the time range of the dual wavelength method by substituting for the vibrating mirror an air‐turbine‐driven mirror capable of rotating at several kilohertz and giving dual wavelength readout every 400 μsec or less. The three methods have been employed in time ranges of 40, 200, and 1000 μsec, respectively, in the measurement of the fast reaction of oxygen with cytochrome oxidase bound to mitochondrial membranes.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::c73f07add51299b851d7a1c7dca7c203Test
https://doi.org/10.1063/1.1685447Test
