Distribution and abundance of larval fish in the northern Aegean Sea—eastern Mediterranean—in relation to early summer oceanographic conditions.

dc.contributor.author	Σωμαράκης, Στυλιανός	el
dc.contributor.author	Δρακόπουλος, Πάνος	el
dc.contributor.author	Φιλίππου, Βαρβάρα	el
dc.date.accessioned	2015-01-25T16:40:47Z
dc.date.available	2015-01-25T16:40:47Z
dc.date.issued	2015-01-25
dc.identifier.uri	http://hdl.handle.net/11400/4706
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.subject	Aegean Sea
dc.subject	Fishes--Larvae
dc.subject	Zooplankton
dc.subject	Αιγαίο Πέλαγος
dc.subject	Ψάρια - Οι προνύμφες
dc.subject	Ζωοπλαγκτόν
dc.title	Distribution and abundance of larval fish in the northern Aegean Sea—eastern Mediterranean—in relation to early summer oceanographic conditions.	en
heal.type	journalArticle
heal.classification	Ophthalmology
heal.classification	Optics
heal.classification	Οφθαλμολογία
heal.classification	Οπτική
heal.classificationURI	http://skos.um.es/unescothes/C02842
heal.classificationURI	http://skos.um.es/unescothes/C02847
heal.classificationURI	N/A-Οφθαλμολογία
heal.classificationURI	N/A-Οπτική
heal.keywordURI	http://lod.nal.usda.gov/105769
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85048779
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85150002
heal.identifier.secondary	doi: 10.1093/plankt/24.4.339
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας, Σχολή Επαγγελμάτων Υγείας & Πρόνοιας, Τμήμα Οπτικής & Οπτομετρίας	el
heal.publicationDate	2002
heal.bibliographicCitation	Somarakis, S., Drakopoulos, P., Filippou, V. (2002). Distribution and abundance of larval fish in the northern Aegean Sea—eastern Mediterranean—in relation to early summer oceanographic conditions. Journal of Plankton Research 24(4), pp. 339-357, 19/05/2001. Available from: http://plankt.oxfordjournals.org/content/24/4/339.full#sec-1 [Accessed 03/12/2002]	en
heal.abstract	Two ichthyoplanktonic surveys were conducted during June 1995 and 1996 along the northern Aegean Sea coast with the aim of describing species composition, abundance and distribution patterns of the assemblages of fish larvae and their relationships to oceanographic regimes. The upper water column was generally cooler, fresher and richer in zooplankton during June 1996. The mean abundance of larvae of the small-sized pelagic fish (anchovy and most mesopelagics) was higher in 1996. In contrast, larvae of the middle-sized pelagics (Sardinella aurita, Trachurus mediterraneus, Scomber jaconicus and Auxis rochei) were more abundant in 1995. The eastern part of the surveyed area (NE Aegean Sea) was colder and less saline during both years because of the influence of Black Sea and riverine waters. In the colder June 1996, larvae of many ‘summer spawners', e.g., the middle-sized pelagics, were present infrequently and at very low numbers in the NE Aegean Sea. Cluster analysis using the Bray–Curtis similarity index revealed well-defined groups of stations and assemblages of larvae. Ordination scores derived from non-metric multidimensional scaling were compared by multiple regression with various parameters and the analysis showed that taxonomic composition and abundance was primarily explained by bathymetry. In the cooler June 1996, a significant amount of variation in ordination scores was related to longitudinal differences in temperature, salinity and the width of the continental shelf. The membership of station and species groups defined by the cluster analysis differed between 1995 and 1996 and reflected interannual differences in the distribution and abundance of component species. Spatial and temporal spawning patterns of adults played the key role in the formation of assemblages of early larvae.	en
heal.journalName	Journal of Plankton Research	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true