Results of the Post 2021 Method

Stream Information
Site Id GCD-11
Name Black River at Blackjack Bridge
County Gogebic
Description Site is directly upstream from Blackjack Rd bridge crossing. Boulder and cobble substrate. Swift current. Rocks very slippery here.
Latitude 46.505024
Longitude -89.996208

Macro Family Entry Information
Date 2025-09-15
Collection Time Start 10:30:00.00
Avg Water Depth(ft) 1
Weather conditions from last week Warm/Dry
Site Condition Issues None
Habitat Riffles presence
Habitat Rocks presence
Habitat Aquatic Plants absence
Habitat Runs presence
Habitat Backwater presence
Habitat Leaf Packs absence
Habitat Pools absence
Habitat Undercut-Vegetation absence
Habitat Wood absence
Collection Finish Time 11:00:00.00
ID Confidence 5
Hirudinea --
Oligochaeta 1
Curculionidae --
Dryopidae --
Dytiscidae --
Elmidae --
Gyrinidae --
Haliplidae --
Hydrophilidae --
Lampyridae --
Noteridae --
Psephenidae --
Ptilodactylidae --
Scirtidae --
Staphylinidae --
Athericidae 3
Blephariceridae --
Ceratopogonidae --
Chaoboridae --
Chironomidae 3
Culicidae --
Dixidae --
Dolichopodidae --
Empididae --
Ephydridae --
Muscidae --
Psychodidae --
Ptychopteridae --
Sciomyzidae --
Simuliidae 1
Stratiomyidae --
Syrphidae --
Tabanidae --
Tipulidae 1
Amphipoda --
Decapoda 5
Isopoda --
Ameletidae --
Ametropodidae --
Anthropleidae --
Baetidae 26
Baetiscidae --
Caenidae --
Ephemerellidae --
Ephemeridae --
Heptageniidae 20
Isonychiidae 2
Leptohyphidae --
Leptoplebiidae 11
Metretopodidae --
Neoephemeridae --
Polymitarcyidae --
Potamanthidae --
Pseudironidae --
Siphlonuridae --
Ancylidae --
Bithyniidae --
Hydrobiidae --
Lymnaeidae --
Physidae --
Planorbidae --
Pleuroceridae --
Pomatiopsidae --
Valvatidae --
Viviparidae --
Unidentified Snail --
Belostomatidae --
Corixidae --
Gelastocoridae --
Gerridae --
Hydrometridae --
Mesoveliidae --
Naucoridae --
Nepidae --
Notonectidae --
Pleidae --
Saldidae --
Veliidae --
Cosmopterigidiae --
Nepticulidae --
Noctuidae --
Pyralidae --
Tortricidae --
Corydalidae 2
Sialidae --
Aeshnidae --
Calopterygidae --
Coenagrionidae --
Cordulidae --
Cordulegastridae --
Gomphidae 4
Lestidae --
Libellulidae --
Macromiidae --
Corbiculidae --
Dreissenidae --
Sphaeriidae (aka Pisidiidae) --
Unionidae --
Capniidae --
Chloroperlidae --
Leuctridae --
Nemouridae --
Perlidae 8
Perlodidae --
Pteronarcyidae --
Taeniopterygidae --
Apataniidae --
Brachycentridae --
Dipseudopsidae --
Glossosomatidae --
Goeridae --
Helicopsychidae --
Hydropsychidae 11
Hydroptilidae --
Lepidostomatidae --
Leptoceridae --
Limnephilidae --
Molannidae --
Odontoceridae --
Philopotamidae --
Phryganeidae --
Polycentropodidae --
Psychomyiidae --
Rhyacophilidae 1
Sericostomatidae --
Uenoidae --
Hydracarina --
Collembola --
Platyhelminthes --
Total Abundance 99
Total Diversity 15
Water Quality Rating Score 3.49
Water Quality Rating Category Excellent
Abundance of Insects 93
Total Insect Diversity 13
Abundance of EPT 79
Total EPT Diversity 7
Total Sensitive Family Diversity 7