Hellgrammite,or,Dobsonfly larva,Corydalus sp.,on a stream rock. Dobsonfly larvae live underneath rocks in flowing streams with good water quality. Their presence is used,along with other macroinvertebrates that require high dissolved oxygen,as an indicator of a stream's health. They are eaten by fish such as trout and can be used as fish bait in fly fishing | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Shields, Martin |
Taille de l’image : | 4930 px × 3300 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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