Table 2: Summary of Existing Fish and Fish Habitat Conditions
WATERBODY | FLOW (PERMANENT, INTERMITTENT OR EPHEMERAL) | THERMAL REGIME (WARM / COOL / COLD) | SUBSTRATETYPE | VEGETATION (RIPARIAN & IN-STREAM) | SUPPORTS A FISHERY | FISHSPECIESPRESENT | SENSITIVITY(LOW, MODERATE,HIGH) | RATIONALE FOR SENSITIVITY RANKING |
---|---|---|---|---|---|---|---|---|
BROADWAY DRAIN | Intermittent | Warm | Gravel, silt, clay , muck | Significant black oak woodlands known as Black Oak Woods, is located between Broadway Street and Cherry Blossom Avenue. | Seasonal | Northern pike (DFO data), bait /forage fish species as identifie d in Table 1 | Low | Species dependency on habitat is seasonal and low.This is a warm water municipal drain that has the potential to support a warm and cool water seasonal fishery. |
DRAINAGE CHANNEL | Intermittent | Warm | Muck, silt, detritus | Phragmites, grasses | Seasonal | Bait /forage fish species | Low | Species dependency on habitat is seasonal and low.This is a warm water drainage feature that has the potential to support a warmwater seasonal fishery. |
DETROIT RIVER | Permanent | Refer to 2.0 Existing Conditions and Table 1. |
3. AQUATIC SPECIES AT RISK
3.1
DETROIT RIVER
A federally and provincially listed Aquatic Species at Risk (SAR), Channel Darter (Threatened), has been identified in the Detroit River and has been captured in the approximate 300 m reach between Healy Drain and Broadway Drain. All mitigation measures outlined in Section 5 of this document must be adhered to at all times throughout proposed work in or near Broadway Drain or any other drain/waterbody. The release of any deleterious substances including sediment and sediment laden water must be prevented. The deposition of fine sediments to a watercourse can be detrimental to aquatic organisms as a result of reducing streambed substrate composition. In addition to decreasing egg-to-fry survival rates in fish and impacting macroinvertebrate production, increased suspended sediment loads can clog the gills of fish and their ability to feed or migrate effectively.