Table 2: BMWP taxa scores: class, order, or family (adapted from Alba-Tercedor, 1996 [29]).

TaxaScore

Ephemeroptera: Leptophlebiidae, Leptohyphidae 
Plecoptera: Perlidae 
Trichoptera: Brachycentridae, Leptoceridae, Odontoceridae, and Sericostomatidae
10

Odonata: Coenagrionidae, Calopterygidae, Cordulegastridae, Gomphidae, and Libellulidae 
Trichoptera: Calamoceratidae, Glossosomatidade, Philopotamidae, and Psychomyiidae
8

Plecoptera: Nemouridae 
Trichoptera: Polycentropodidae
7

Crustacea 
Trichoptera: Hydrobiosidae, Hydroptilidae
6

Coleoptera: Elmidae, Dryopidae 
Diptera: Simuliidae, Tipulidae 
Ephemeroptera: Euthyplociidae, Polymitarcidae 
Platyhelminthes 
Trichoptera: Helicopsychidae, Hydropsychidae
5

Arachnida: Hydracarina 
Coleoptera: Chrysomelidae, Curculionidae, and Haliplidae 
Diptera: Anthomyiidae, Ceratopogonidae, Chaoboridae, Dixidae, Dolichopodidae, 
Empididae, Limoniidae, Psychodidae, Stratiomyidae, and Tabanidae 
Ephemeroptera: Baetidae, Caenidae 
Megaloptera: Corydalidae, Sialidae
4

Annelida: Hirudinea 
Coleoptera: Dytiscidae, Gyrinidae, Helodidae, Hydrophilidae, and Noteridae 
Hemiptera: Belostomatidae, Corixidae, Gerridae, Hydrometridae, 
Mesoveliidae, Naucoridae, Nepidae, Notonectidae, Pleidae, and Veliidae 
Mollusca
3

Diptera: Chironomidae, Culicidae, Ephydridae, Muscidae, and Thaumaleidae2

Annelida: Oligochaeta 
Blattaria: Blattidae 
Diptera: Sciomyzidae, Syrphidae, and Rhagionidae 
Lepidoptera
1