Zobrazeno 1 - 10
of 21
pro vyhledávání: '"John, Dalen"'
Autor:
Lise Doksæter Sivle, Emilie Hernes Vereide, Karen de Jong, Tonje Nesse Forland, John Dalen, Henning Wehde
Publikováno v:
Journal of Marine Science and Engineering, Vol 9, Iss 4, p 436 (2021)
Anthropogenic noise has been recognized as a source of concern since the beginning of the 1940s and is receiving increasingly more attention. While international focus has been on the effects of noise on marine mammals, Norway has managed seismic sur
Externí odkaz:
https://doaj.org/article/b2eed82aa9264fa2a121dbf176304778
Autor:
John Dalen, Nils Olav Handegard, Caroline M. F. Durif, Christiane Eichner, David M. Fields, Howard I. Browman, Anne Berit Skiftesvik, Ketil Malde, Ørjan Karlsen
Publikováno v:
ICES Journal of Marine Science. 76:2033-2044
Seismic surveys use airguns that emit low frequency high magnitude sound to detect subsea resources and to map seabed geology. The effect of seismic blasts on Calanus spp., a key food source for commercially important fish, was assessed in field expe
Autor:
Len Thomas, Hans Slabbekoorn, Dick de Haan, John Dalen, Hendrik V. Winter, Tobias van Kooten, Kevin D. Heaney, Craig A. Radford, Michael A. Ainslie, John Harwood
Publikováno v:
Fish and Fisheries 20 (2019) 4
Fish and Fisheries, 20(4), 653-685
Fish and Fisheries, 20(4), 653-685
Offshore activities elevate ambient sound levels at sea, which may affect marine fauna. We reviewed the literature about impact of airgun acoustic exposure on fish in terms of damage, disturbance and detection and explored the nature of impact assess
Autor:
Henning Wehde, Tonje Nesse Forland, Emilie Hernes Vereide, Lise Doksæter Sivle, John Dalen, Karen de Jong
Publikováno v:
Journal of Marine Science and Engineering
Volume 9
Issue 4
Journal of Marine Science and Engineering, Vol 9, Iss 436, p 436 (2021)
Volume 9
Issue 4
Journal of Marine Science and Engineering, Vol 9, Iss 436, p 436 (2021)
Anthropogenic noise has been recognized as a source of concern since the beginning of the 1940s and is receiving increasingly more attention. While international focus has been on the effects of noise on marine mammals, Norway has managed seismic sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c58c76a4acaf586c5941a5f1f262014
https://hdl.handle.net/11250/2787407
https://hdl.handle.net/11250/2787407
Autor:
Dietrich Wittekind, John Dalen, Thomas Folegot, Sandra van der Graaf, Gerry Sutton, Stephen Robinson, Stefanie Werner, Michael Ainslie, Karsten Brensing, Mathias H. Andersson, Mark L. Tasker, John V. Young, Alexander Liebschner, Michel André, Russell Leaper, Jukka Pajala, René P. A. Dekeling, Manuel Castellote, Frank Thomsen, Peter Sigray, Fabrizio Borsani
Publikováno v:
The Effects of Noise on Aquatic Life II ISBN: 9781493929801
The European Marine Strategy Framework Directive requires European member states to develop strategies for their marine waters leading to programs of measures that achieve or maintain good environmental status (GES) in all European seas by 2020. An e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42c4c49d543d8377f408b8f66590432b
https://doi.org/10.1007/978-1-4939-2981-8_24
https://doi.org/10.1007/978-1-4939-2981-8_24
Autor:
René, Dekeling, Mark, Tasker, Michael, Ainslie, Mathias, Andersson, Michel, André, Fabrizio, Borsani, Karsten, Brensing, Manuel, Castellote, John, Dalen, Thomas, Folegot, Sandra, van der Graaf, Russell, Leaper, Alexander, Liebschner, Jukka, Pajala, Stephen, Robinson, Peter, Sigray, Gerry, Sutton, Frank, Thomsen, Stefanie, Werner, Dietrich, Wittekind, John V, Young
Publikováno v:
Advances in Experimental Medicine and Biology, 875, 205-215
The European Marine Strategy Framework Directive requires European member states to develop strategies for their marine waters leading to programs of measures that achieve or maintain good environmental status (GES) in all European seas by 2020. An e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::6ca7a6820012cbc971c631b728196dc0
http://resolver.tudelft.nl/uuid:d53dbe97-23cb-4adc-884c-e586d44fdbee
http://resolver.tudelft.nl/uuid:d53dbe97-23cb-4adc-884c-e586d44fdbee
Publikováno v:
ICES Journal of Marine Science. 66:991-997
Korneliussen, R. J., Heggelund, Y., Eliassen, I. K., Øye, O. K., Knutsen, T., and Dalen, J. 2009. Combining multibeam-sonar and multifrequency-echosounder data: examples of the analysis and imaging of large euphausiid schools. – ICES Journal of Ma
Publikováno v:
Aquatic Living Resources
Aquatic Living Resources, EDP Sciences, 2007, 20 (4), pp.377-384. ⟨10.1051/alr:2008016⟩
Aquatic Living Resources, EDP Sciences, 2007, 20 (4), pp.377-384. ⟨10.1051/alr:2008016⟩
International audience; Multibeam omnidirectional sonars are tools currently used by fishers, but also allow the monitoring of pelagic fish schools surrounding a platform. Multibeam processing methods now offer improved capacities for raw data storag
Autor:
John Dalen, Rudi Cloete, D. Boyer, Janet Coetzee, Gerhard Oechslin, Ole Arve Misund, Nkosi Luyeye
Publikováno v:
African Journal of Marine Science; Vol 27, No 1 (2005); 169-176
The schooling dynamics and swimming behaviour of sardinella Sardinella maderensis and S. aurita schooling near the surface in Angolan waters were recorded visually, using a calibrated echo integration system and a 95kHz high resolution sonar on board
Publikováno v:
Fisheries Research. 67:143-150
In April 1999 seismic investigations started in an area off western Norway as part of an ordinary three-dimensional survey, using a vessel with two seismic sources, each of 20 air guns and 10 hydrophone streamers. The seismic sources, towed at a dept