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http://hdl.handle.net/2445/32783
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DC Field | Value | Language |
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dc.contributor.author | Rieradevall i Sant, Maria | - |
dc.contributor.author | Prat i Fornells, Narcís | - |
dc.date.accessioned | 2012-11-21T18:42:00Z | - |
dc.date.available | 2012-11-21T18:42:00Z | - |
dc.date.issued | 1986 | - |
dc.identifier.uri | http://hdl.handle.net/2445/32783 | - |
dc.description.abstract | A study on the qualitative and quantitative coniposition of macroinvertebrate drift in the Llobregat river ( N E Spain) is put fonvard. Samples were taken hourly during a 24 hour period in august 1982. The samples were taken with a net of 625 cm. of filtering surface and an opening mesh size of 500 microns, which íiltered 72,1 m3 /h. and collected 75.719 individuals during the sampling period. That means a drift rate of 1.224 indiv./h. and a drift density of 17 indi/m3 . 8 I0/o of the organismes collected were exuviae, mainly pupal chironomid skins (54%) and nimphal ephemeroptera moults (27(Ynj. The remainder percentage of living organisms represents a drift rate of 227 indiv./h. and a drift density of 3.14 indiv./m3. These are intermediate values ifwe compare them with the data published. Sixty per cent of the living drift were chiroiiomids. 17.5 '1 ephemeroptera and 10 (%1 trichoptera; these being the niost iniportant groups. Ofthe 87 species identified in those groups 23 were common in al1 the (7 1 ) samples (Table 1) | - |
dc.format.extent | 10 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | spa | - |
dc.publisher | Asociación Ibérica de Limnología | - |
dc.relation.isformatof | Reproducció del document publicat a: http://www.limnetica.net/Limnetica/Limne02/L02u147_Deriva_macroinvertebrados_rio_Llobregat.pdf | - |
dc.relation.ispartof | Limnetica, 1986, vol. 2, p. 147-156 | - |
dc.rights | (c) Rieradevall i Sant, Maria et al., 1986 | - |
dc.source | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) | - |
dc.subject.classification | Invertebrats aquàtics | - |
dc.subject.classification | Cursos d'aigua | - |
dc.subject.classification | Dípters | - |
dc.subject.classification | Biologia d'aigua dolça | - |
dc.subject.classification | Llobregat (Catalunya : Curs d'aigua) | - |
dc.subject.other | Aquatic invertebrates | - |
dc.subject.other | Rivers | - |
dc.subject.other | Diptera | - |
dc.subject.other | Freshwater biology | - |
dc.subject.other | Llobregat River (Catalonia) | - |
dc.title | Deriva nictemeral de macroinvertebrados en el rio Llobregat (Barcelona) | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 020760 | - |
dc.date.updated | 2012-11-21T18:42:00Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) |
Files in This Item:
File | Description | Size | Format | |
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020760.pdf | 577.66 kB | Adobe PDF | View/Open |
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