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Tècniques per a la presa de mostres<br />

Manual de restauració de riberes fluvials<br />

El més senzill serà utilitzar xarxes manuals en forma de<br />

caçapapallones o també les anomenades mànegues de plancton.<br />

Per poder fer la presa de mostres cal situar la xarxa corrent avall i<br />

aixecar les pedres o remoure el fons si aquest es de graves o sorres.<br />

Valoració dels invertebrats en l’avaluació de la qualitat ambiental<br />

dels cursos d’aigua<br />

Famílies Valoració<br />

Siphlonuridae, Heptageniidae, Leptophlebiidae,<br />

Ephemerellidae, Potamanthidae, Ephemeridae .................................................................................... 10<br />

Taeniopterygidae, Leuctridae, Capniidae, Perlodidae, Perlidae, Chloroperlidae ................................. 10<br />

Aphelocheiridae .................................................................................................................................... 10<br />

Phryganeidae, Molannidae, Beraeidae,Odontoceridae, Leptoceridae, Goeridae, Lepidostomatidae,<br />

Brachycentridae,Sericostomatidae ....................................................................................................... 10<br />

Astacidae ................................................................................................................................................ 8<br />

Lestidae, Agriidae, Gomphidae, Cordulegasteridae, Aeshinidae, Corduliidae, Libellulidae ................. 8<br />

Caenidae ................................................................................................................................................. 7<br />

Nemouridae ............................................................................................................................................ 7<br />

Rhyacophilidae, Polycontropodidae, Limnephilidae ............................................................................. 7<br />

Neritidae, Viviparidae, Ancylidae .......................................................................................................... 6<br />

Hydroptilidae .......................................................................................................................................... 6<br />

Unionidae ............................................................................................................................................... 6<br />

Corophiidae, Gammaridae ...................................................................................................................... 6<br />

Platycnemididae, Coenagriidae .............................................................................................................. 6<br />

Mesoveliidae, Hydrometridae, Gerridae, Nepidae, Naucoridae, Notonectidae, Pleidae, Corixidae ...... 5<br />

Haliplidae, Hygrobiidae, Dytiscidae, Gyrinidae, Hydrophilidae, Clambidae, Helodidae,<br />

Dryopidae, Elmidae, Chrysomelidae, Curculionidae ............................................................................. 5<br />

Hydropsychidae ...................................................................................................................................... 5<br />

Tipulidae, Simuliidae.............................................................................................................................. 5<br />

Planariidae, Dendrocoelidae ................................................................................................................... 5<br />

Baetidae .................................................................................................................................................. 4<br />

Sialidae ................................................................................................................................................... 4<br />

Piscicolidae ............................................................................................................................................. 4<br />

Valvatidae, Hydrobiidae, Lymnaeidae,<br />

Physidae, Planorbidae ............................................................................................................................ 3<br />

Sphaeriidae ............................................................................................................................................. 3<br />

Glossiphoniidae, Hirudidae, Erpobdellidae ............................................................................................ 3<br />

Asellidae ................................................................................................................................................. 3<br />

Chironomidae ......................................................................................................................................... 2<br />

Oligochaeta ............................................................................................................................................. 1<br />

○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○<br />

113<br />

Sistema de valoració<br />

dels invertebrats<br />

presents en<br />

ecosistemes fluvials<br />

segons el National<br />

Water Council, 1981,<br />

Regne Unit.

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