{"refrec":{"BRefID":16962,"RR":"<b>Costa, M.J.; Bruxelas, A.</b> (1989). The structure of fish communities in the Tagus Estuary, Portugal, and its role as a nursery for commercial fish species, <b><i>in</i></b>: Ros, J.D. (Ed.) <i>Topics in Marine Biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. Scientia Marina (Barcelona),</i> 53(2-3): pp. 561-566","BEntID":16962,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":", <b><i>in</i></b>: Ros, J.D. (Ed.) <i>Topics in marine biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. European Marine Biology Symposia,</i> 22: pp. 561-566","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Costa, M.J.; Bruxelas, A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Costa, M.J.; Bruxelas, A.","Englishabstract":"The Tagus is the largest estuary in Portugal (320 km²). Its fish community is composed of 44 species, with species diversity values varying between 0.85 and 2.237. Seven fish species use the estuary as a nursery area: <i>Trisopterus luscus</i> (Linnaeus, 1758), <i>Ciliata mustela</i> (Linnaeus, 1758), <i>Dicentrarchus labrax</i> (Linnaeus, 1758), <i>Trigla lucerna</i> Linnaeus, 1758), <i>Platichthys flesus flesus</i> (Linnaeus, 1758), <i>Solea vulgaris vulgaris</i> (Quensel, 1806), and <i>Solea senegalensis</i> (Kaup, 1858). While in the estuary, their growth rate is very high. This may be related to the availability of suitable food items. The brown shrimp <i>Crangon crangon</i> (Linnaeus, 1758) also uses the estuary as a nursery, and is a prefered prey of <i>T. lucerna, D. labrax</i> and <i>C. mustela</i>, and a secondary prey for <i>S. vulgaris</i> and <i>P. flesus</i>. The main food of these last two species are two polychaete species, <i>Nereis diversicolor</i> Müller, 1852 and <i>Lanice conchilega</i> Pallas, 1778. Three shallow water stations near highly productive salt-marshes are the principal nursery areas for fishes. Young of the year <i>D. labrax</i> were caught first in nursery areas in May with a minimum standard length of 25 mm. The first catches of <i>Solea vulgaris</i> occurred in April, when juveniles had a standard length of 30 mm. The highest density was observed in May with 142.3 ind. 1000 m<sup>-1</sup>. Density values of <i>Solea senegalensis</i> were lower.","AbstractOtherLang":null,"BibLvlCode":"AMS","StandardTitle":"The structure of fish communities in the Tagus Estuary, Portugal, and its role as a nursery for commercial fish species","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1989,"MonPub":null,"DateUpdate":"2021-12-02","DateCreate":"2001-08-30","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":16962,"PubliDate":1989,"Pagination":"561-566","XtraPublOfAnaID":null,"ISBN":null,"Volume":"22","Issue":null,"BRefMon":16905,"BRefMonRR":"<b>Ros, J.D. (Ed.)</b> (1989). 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