Dog River at Mouth of Robinson Bayou
Mobile, Alabama, United States
This site normally has a 36"-24" high tide rise above the low tide every day. River Depth can run 3'-12' within 300' of site. Water velocity is about 2 mph when the tide is running. This site is a brackish transition zone (fresh and salt water), depending upon the daily rainfall, wind, storms, and tides. The water is very salty in drought conditions. It is fresh when there is a lot or rainfall. There are a lot of species (red fish, speckled trout, crabs, manatee, catfish, bait fish,alligator gars, alligators, brown pelicans, osprey, bald eagles, migratory birds) which inhabit or migrate through this area. Porpoise were seen from this site in early summer 2017. Flora and fauna may be changing from fresh to salt due to salt water intrusion due to the ocean rise. The marsh around cypress trees is eroding due to boat traffic. Cypress trees in marshes are slowly dying (5-7 trees in 4-5 years). Flora and fauna may be changing from fresh to salt due to salt water intrusion due to the ocean rise. Bacteria (e-coli) warnings occur during heavy rainfalls due to sanitary sewers overflowing upstream.
Location created by
David Strain
- Group: Dog River : Dog River Clearwater Revival
- Lat: 30.6108979
- Lng: -88.0880356
- Waterbody Type: River
- Timezone: America/Chicago
Latest photos
Salinity:
6" below water surface: 1 PPT
18" below water surface: ~1.5 PPT
6" from river bottom (~8' deep): 3 PPT
3/4" rain 18 hours prior to sampling. No rain 5-7 days prior to the rain event.
Beautiful day. Sunny with many cumulus clouds. SSE wind at 7 mph. Sample taken at high tide. No rain for about a week.
No rainfall for previous 24 hours. 0.1" rain the last 7 days. N wind @ 10-12 mph.
No animals noted.
Tides have been running higher than normal. The high tide was falling. No rain for 9-10 days. Water color is a yellow-green in the sunlight. No water fowl were noted at sampling time.
Salinity at surface 5 PPT, 18" below surface 5 PPT, at bottom 7.5 PPT. ENE wind at 10 mph. Scattered eel grass and leaves on surface by shore/bulkhead. Water depth 2.0 meters. High tide starting to fall. Pelicans and sea gulls/tern diving out front of site for fish. Lots of fish (mullet?) breaking (swirls and some jumping) the water. Numerous fish schools (mullet, menhaden, ?) noted this week as water surface wrinkles around school.
Very hot for the last several weeks. Over 90 degrees F for weeks....nights in the mid to low 70s.
Water brownish-green. Minnows breaking the water. Leaves scattered on water surface. 5" turtle observed. Small 3"-4" fish popping the surface. 1 fish jumped downstream about 50' from monitoring site .Depth at 1.2 m.
Light drizzling rain at time of sampling. -.2" rain the last 24 hours. Water moving down stream but internet says the ride should still be rising(?). Rides are still running 6"-12" higher since Hurricane Barry.
Depth of water 2.2M.