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DC Field | Value | Language |
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dc.contributor.author | López Laseras, Ma. Pilar | - |
dc.contributor.author | Tomás, Xavier | - |
dc.date.accessioned | 2012-10-29T12:23:09Z | - |
dc.date.available | 2012-10-29T12:23:09Z | - |
dc.date.issued | 1989 | - |
dc.identifier.issn | 0214-8358 | - |
dc.identifier.uri | http://hdl.handle.net/2445/32424 | - |
dc.description.abstract | About sixty small water bodies (coastal lagoons, marshes, salt pans, channels, springs, etc.) of the Spanish Mediterranean coast were sampled seasonally for one year (1979-1980), in order to study different aspects of their chemical composition. The concentrations of major ions (alkalinity, Cl-, Ca2+, Mg2+, Na+, and K+), nutrients (N.NO-3, N.NO2-, TRP and Si), oxygen and pH were determined for this purpose. The salt concentrations measured range between 0.4 and 361.3 g l-1. The samples have been divided into four classes of salinity (in g l-1): Cl, S < 5; C2, 5 < S < 18; C3, 18 < S < 40; C4, S > 40. Within these classes, the pattern of ionic dominance recorded is remarkably constant and similar to that found in most coastal lagoons (Cl- > So42- > Alk., for the anions, and Na+ > Mg2+ > Ca2+ > K+, for the cations), although other models occur especially in the first class. The dominance of Na+ and Cl-, as well as the molar ratios Mg2+/Ca2+ and Cl- / SO42- ,clearly increase from class Cl to class C4. The hyperhaline waters include different subtypes of the major brine type"c",, of EUGSTER & HARDIE (1978), the Na+ - (Mg2+) - Cl- - (SO42-) being the most frequent. Nutrient concentrations fall within a wide range (N.NO3 from 0.1 to 1100 mg-at 1-1; PRT from 0.01 to 23.56 mg-at l-1 and Si from 1.0 to 502.0 mg-at l-1). The oxygen values are very variable too, ranging between 0 and 14.4 ml l-1. Four different patterns of nutrient distribution have been distinguished based on the mean concentrations of N.NO3-, and TRP (mean values in mg-at l-1): A, N.NO3- < 10, TRP > l ; B, N.NO3- > 100, TRP < 1; C, 10 < N.NO3- < 100, TRP < 1; C, D, N.NO3- < 10, TRP < 1. As a rule, lagoons of low salinity (C1 and C2 classes) display the nutrient pattern C, and lagoons of high salinity (C3 and C4) show the nutrient pattern D. Model A only appears in waters of very low salinity, whereas model B does not seem to be related to salinity. | - |
dc.format.extent | 9 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Consejo Superior de Investigaciones Científicas (CSIC) | - |
dc.relation.isformatof | Reproducció del document publicat a: http://www.icm.csic.es/scimar/index.php/secId/6/IdArt/2543/ | - |
dc.relation.ispartof | Scientia Marina, 1989, vol. 53, num. 2-3, p. 591-599 | - |
dc.rights | cc-by-nc (c) Consejo Superior de Investigaciones Científicas (CSIC), 1989 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/3.0/es | - |
dc.source | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) | - |
dc.subject.classification | Llacunes | - |
dc.subject.classification | Mediterrània, Mar | - |
dc.subject.other | Lagoons | - |
dc.subject.other | Mediterranean Sea | - |
dc.title | Chemical composition of the small coastal lagoons of the Mediterranean Spanish littoral | eng |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 060642 | - |
dc.date.updated | 2012-10-29T12:23:10Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) |
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060642.pdf | 760.34 kB | Adobe PDF | View/Open |
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