Distribution and diversity of open-ocean, near-bottom macroplankton in the western Mediterranean: Analysis at different spatio-temporal scales

Distribution and diversity of open-ocean, near-bottom macroplankton in the western Mediterranean: Analysis at different spatio-temporal scales

14 pages, 9 figures, 4 tables

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Bibliographic Details
Main Authors: Cartes, Joan Enric, Fanelli, Emanuela, Papiol, Vanesa, Zucca, Leda
Format: artículo biblioteca
Language:English
Published: Pergamon Press 2010-11
Subjects:Distribution, Diversity, Open ocean, Deep-sea, Near-bottom, Macroplankton, Hyperbenthos, Western Mediterranean, Spatio-temporal changes,
Online Access:http://hdl.handle.net/10261/78388
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spelling dig-icm-es-10261-783882020-12-09T16:17:34Z Distribution and diversity of open-ocean, near-bottom macroplankton in the western Mediterranean: Analysis at different spatio-temporal scales Cartes, Joan Enric Fanelli, Emanuela Papiol, Vanesa Zucca, Leda Distribution Diversity Open ocean Deep-sea Near-bottom Macroplankton Hyperbenthos Western Mediterranean Spatio-temporal changes 14 pages, 9 figures, 4 tables We analyzed the distribution, diversity, and composition of western Mediterranean macroplankton (excluding gelatinous taxa) in the water column over depths of ca. 550-850. m, with special attention to near-bottom (0-1.5 and ca. 5-77. m above the bottom, mab) levels, and including data from three areas (off the coasts of Catalonia, and to the NW, and SE of Mallorca, Balearic Islands) in the period 1991-2008. Spatio-temporal changes in macroplankton abundance were evaluated as follows: (i) by seasonal sampling in 2007 off the Catalonian coast, (ii) by comparing Catalonian and Balearic Island slopes, and (iii) by comparing a fixed station on the Catalonian slope (at 550-800. m depth) at decadal (1991/1992-2007/2008) time scales. Diversity (in terms of species richness, S) was greater (i) at ca. 5-77 mab than at 0-1.5. mab, (ii) over the insular slopes of the Balearic Island (around Mallorca) than over the mainland Catalonian slopes, and (iii) in the period 1991/1992 than in 2007, likely related to higher values of the North Atlantic Oscillation (NAO) index in 1991/1992. In most analyses species composition was strongly influenced by the degree of stratification and homogenization of the water column in summer-autumn and winter-spring respectively and by location (longitude). Changes consisted mainly of higher density of macroplankton (e.g. abundance of the dominant euphausiids Nematoscelis megalops, Meganyctiphanes norvegica and Euphausia krohni and of the fish Cyclothone braueri) between June and October, parallel to an increase in the T and S close to the bottom. This coincided with changes in the flow of Levantine intermediate water (LIW) in the area. Aggregation of adult forms of the dominant species close to the bottom in summer-autumn could be favored because summer is the period of highest density of food - copepods, mainly Calanus helgolandicus - near the bottom off the Catalan slope. The formation of a thermocline in the water column and the reinforcement of the permanent thermohaline front at the shelf-slope break during summer at ca. 400. m in the Balearic Basin may also enhance this tendency toward greater aggregation of deep macroplankton under stratified water column conditions We deeply appreciate the help of all participants in the cruises and projects IDEA, BIOMARE, and ANTROMARE (Ref. CTM2009-12214-C02-01/MAR), which were the basis for this study, to the crew of the R/Vs Francisco de Paula Navarro and Garcia del Cid and especially to all our colleagues that assisted us on board and at laboratory helping in the task of zooplankton sorting Peer Reviewed 2013-06-21T06:34:04Z 2013-06-21T06:34:04Z 2010-11 2013-06-21T06:34:05Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1016/j.dsr.2010.08.001 issn: 0967-0637 e-issn: 1879-0119 Deep-Sea Research Part I: Oceanographic Research Papers 57(11): 1485-1498 (2010) http://hdl.handle.net/10261/78388 10.1016/j.dsr.2010.08.001 en https://doi.org/10.1016/j.dsr.2010.08.001 none Pergamon Press
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Distribution
Diversity
Open ocean
Deep-sea
Near-bottom
Macroplankton
Hyperbenthos
Western Mediterranean
Spatio-temporal changes
Distribution
Diversity
Open ocean
Deep-sea
Near-bottom
Macroplankton
Hyperbenthos
Western Mediterranean
Spatio-temporal changes
spellingShingle Distribution
Diversity
Open ocean
Deep-sea
Near-bottom
Macroplankton
Hyperbenthos
Western Mediterranean
Spatio-temporal changes
Distribution
Diversity
Open ocean
Deep-sea
Near-bottom
Macroplankton
Hyperbenthos
Western Mediterranean
Spatio-temporal changes
Cartes, Joan Enric
Fanelli, Emanuela
Papiol, Vanesa
Zucca, Leda
Distribution and diversity of open-ocean, near-bottom macroplankton in the western Mediterranean: Analysis at different spatio-temporal scales
description 14 pages, 9 figures, 4 tables
format artículo
topic_facet Distribution
Diversity
Open ocean
Deep-sea
Near-bottom
Macroplankton
Hyperbenthos
Western Mediterranean
Spatio-temporal changes
author Cartes, Joan Enric
Fanelli, Emanuela
Papiol, Vanesa
Zucca, Leda
author_facet Cartes, Joan Enric
Fanelli, Emanuela
Papiol, Vanesa
Zucca, Leda
author_sort Cartes, Joan Enric
title Distribution and diversity of open-ocean, near-bottom macroplankton in the western Mediterranean: Analysis at different spatio-temporal scales
title_short Distribution and diversity of open-ocean, near-bottom macroplankton in the western Mediterranean: Analysis at different spatio-temporal scales
title_full Distribution and diversity of open-ocean, near-bottom macroplankton in the western Mediterranean: Analysis at different spatio-temporal scales
title_fullStr Distribution and diversity of open-ocean, near-bottom macroplankton in the western Mediterranean: Analysis at different spatio-temporal scales
title_full_unstemmed Distribution and diversity of open-ocean, near-bottom macroplankton in the western Mediterranean: Analysis at different spatio-temporal scales
title_sort distribution and diversity of open-ocean, near-bottom macroplankton in the western mediterranean: analysis at different spatio-temporal scales
publisher Pergamon Press
publishDate 2010-11
url http://hdl.handle.net/10261/78388
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