Relationships between algal food and gut and gonad conditions in the Mediterranean sea urchin Paracentrotus lividus (Lam.)

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Mediterranean Marine Science Vol 13, No 2 (2012)
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dc.contributor.author	Murillo-Navarro, R.	en
dc.contributor.author	Jimenez-Guirado, D.	en
dc.date.accessioned	2016-03-30T05:23:23Z
dc.date.issued	2016-03-30
dc.identifier.uri	http://hdl.handle.net/123456789/692
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	Feeding index	en
dc.subject	Gonadosomatic index	en
dc.subject	Macroalgal diet	en
dc.subject	Paracentrotus lividus	en
dc.subject	Mediterranean Sea	en
dc.subject	South Spain	en
dc.title	Relationships between algal food and gut and gonad conditions in the Mediterranean sea urchin Paracentrotus lividus (Lam.)	en
heal.type	journalArticle
heal.keywordURI	N/A-Feeding index
heal.keywordURI	N/A-Gonadosomatic index
heal.keywordURI	N/A-Macroalgal diet
heal.keywordURI	N/A-Paracentrotus lividus
heal.keywordURI	N/A-Mediterranean Sea
heal.keywordURI	N/A-South Spain
heal.identifier.secondary	DOI: 10.12681/mms.302
heal.dateAvailable	2016-03-30T05:28:23Z
heal.language	en
heal.access	free
heal.recordProvider	Departamento de Zoología, Universidad de Córdoba,Córdoba, Spain	es
heal.publicationDate	2012
heal.bibliographicCitation	Murillo-Navarro,R.,Jimenez-Guirado,D.(2012).Relationships between algal food and gut and gonad conditions in the Mediterranean sea urchin Paracentrotus lividus (Lam.),Mediterranean Marine Science,Vol(13/2):227-238.	en
heal.abstract	A study was conducted on the population of Paracentrotus lividus (Lamarck, 1816) in a Mediterranean infralittoral bottom of southern of Spain to characterize the relationships between the macroalgal food ingested and the gut and gonad conditions of individuals. Over a full annual cycle (November 2008 to October 2009) composition of the gut content was analyzed monthly and seasonally, the gastrointestinal (GII), repletion (RI) and gonadosomatic (gonad) (GI) indices were calculated, and the stage of gonad maturity of the population was assessed. The GII and RI were found to be strongly correlated, so only the RI was considered in the subsequent analysis. The prevalence of Phaeophyceae and local species of this macroalgal group in the gut content of the sea urchins throughout the year suggests that in conditions of abundant resources, with high levels of algal diversity and no effective limits on supply, brown algae are the main component of the natural diet of P. lividus. Comparison of the physiological indices and the algal fractions of gut content identified relationships throughout the year between RI, the stage of gonad maturity and GI. Specifically, these indices were found to be associated with the abundance of Rhodophyta ingested, although in different ways: GI was related to the consumption of fleshy (non-calcified) red algae and the RI, though less statistically significantly, to the consumption of calcified (articulate and encrusting).	en
heal.publisher	H.C.M.R.	en
heal.journalName	Mediterranean Marine Science	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true
heal.coverage.spatial	Mediterranean	el
heal.coverage.spatial	southern of Spain	el