Seasonal dynamics in Nephrops norvegicus (Decapoda: Nephropidae) catches off the Catalan coasts (Western Mediterranean)
9 pages, 4 figures, 1 table
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2004-09
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Subjects: | Nephrops norvegicus, Seasonal variations, Periodogram analysis, Form estimate analysis, Light intensity, Sex ratio, Western Mediterranean, |
Online Access: | http://hdl.handle.net/10261/35463 |
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dig-icm-es-10261-354632020-11-10T09:09:14Z Seasonal dynamics in Nephrops norvegicus (Decapoda: Nephropidae) catches off the Catalan coasts (Western Mediterranean) Aguzzi, Jacopo Sardà, Francisco Allué, Rosario Nephrops norvegicus Seasonal variations Periodogram analysis Form estimate analysis Light intensity Sex ratio Western Mediterranean 9 pages, 4 figures, 1 table The commercial fishery for Nephrops norvegicus in the Western Mediterranean is mainly centred on fishing grounds on the slope at depths between 200 and 500 m. Seasonal variations in catches of this species were studied using commercial data spanning nearly a decade, as reported by fishermen’s association registers of the Catalan trawlers harboured in Barcelona. Time series of monthly landings data (i.e., total kg of captured individuals) were screened with periodogram analysis revealing a six monthly-based periodicity. Form estimate analysis showed a major peak occurring in spring–summer and a minor peak in autumn. These results were evaluated by considering the effect of seasonal variations in light intensity and photoperiod duration as main environmental factors modulating emergence behaviour in the species. Other factors affecting behaviour, such as moulting and reproduction, were also taken into account The present work was carried out in the framework of a national research project funded by the Spanish Interministerial Council for Science and Technology (CICYT) (NERIT: MAR98-0935). Peer reviewed 2011-05-10T11:13:45Z 2011-05-10T11:13:45Z 2004-09 artículo http://purl.org/coar/resource_type/c_6501 Fisheries Research 69(2): 293-300 (2004) 0165-7836 http://hdl.handle.net/10261/35463 10.1016/j.fishres.2004.04.010 en https://doi.org/10.1016/j.fishres.2004.04.010 none Elsevier |
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Nephrops norvegicus Seasonal variations Periodogram analysis Form estimate analysis Light intensity Sex ratio Western Mediterranean Nephrops norvegicus Seasonal variations Periodogram analysis Form estimate analysis Light intensity Sex ratio Western Mediterranean |
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Nephrops norvegicus Seasonal variations Periodogram analysis Form estimate analysis Light intensity Sex ratio Western Mediterranean Nephrops norvegicus Seasonal variations Periodogram analysis Form estimate analysis Light intensity Sex ratio Western Mediterranean Aguzzi, Jacopo Sardà, Francisco Allué, Rosario Seasonal dynamics in Nephrops norvegicus (Decapoda: Nephropidae) catches off the Catalan coasts (Western Mediterranean) |
description |
9 pages, 4 figures, 1 table |
format |
artículo |
topic_facet |
Nephrops norvegicus Seasonal variations Periodogram analysis Form estimate analysis Light intensity Sex ratio Western Mediterranean |
author |
Aguzzi, Jacopo Sardà, Francisco Allué, Rosario |
author_facet |
Aguzzi, Jacopo Sardà, Francisco Allué, Rosario |
author_sort |
Aguzzi, Jacopo |
title |
Seasonal dynamics in Nephrops norvegicus (Decapoda: Nephropidae) catches off the Catalan coasts (Western Mediterranean) |
title_short |
Seasonal dynamics in Nephrops norvegicus (Decapoda: Nephropidae) catches off the Catalan coasts (Western Mediterranean) |
title_full |
Seasonal dynamics in Nephrops norvegicus (Decapoda: Nephropidae) catches off the Catalan coasts (Western Mediterranean) |
title_fullStr |
Seasonal dynamics in Nephrops norvegicus (Decapoda: Nephropidae) catches off the Catalan coasts (Western Mediterranean) |
title_full_unstemmed |
Seasonal dynamics in Nephrops norvegicus (Decapoda: Nephropidae) catches off the Catalan coasts (Western Mediterranean) |
title_sort |
seasonal dynamics in nephrops norvegicus (decapoda: nephropidae) catches off the catalan coasts (western mediterranean) |
publisher |
Elsevier |
publishDate |
2004-09 |
url |
http://hdl.handle.net/10261/35463 |
work_keys_str_mv |
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1777665794014969856 |