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Table 4 Linear r2 values indicating the degree of fit between individual stream habitat and biotic variables and NMDS models for 22 South Fork Whitewater River, Minnesota, USA stream sites based on either fish or aquatic invertebrate communities

From: Aquatic community structure and stream habitat in a karst agricultural landscape

Fish-Habitat NMDS

Invertebrate-Habitat NMDS

Fish taxa

r2

Invertebrate taxa

r2

Blacknose dace

0.302*

Gammarus

0.575**

Creek chub

0.721**

Baetis

0.883**

White sucker

0.423*

Brachycentrus

0.499*

Johnny darter

0.375*

Hydropsyche

0.867**

Longnose dace

0.284*

Optioservus

0.347*

Common shiner

0.461*

Chironomidae

0.702**

Sand shiner

0.302*

Simulium

0.446*

Central stoneroller

0.512*

Limnophora

0.432*

Brown trout

0.586**

  

Slimy sculpin

0.941**

  

Habitat variables

r2

Habitat variables

r2

Stream width

0.494*

Stream width

0.599**

% Fines

0.606**

% Riffle

0.322*

Embeddedness

0.429*

Buffer width

0.323*

% Riffle

0.282*

Bank rocks

0.279*

Buffer width

0.706**

  

Bank forbs

0.345*

  

Bank rocks

0.759**

  
  1. *P < 0.05, **P < 0.001