16 Jan. 98. Benthic samples. Stations A & B hydrogtaphic conditions good. The area between Stations C & D 

 seems to pond during low tides. In the summer long term ponding will sometimes evaporate and dry up. 

 Station C was 0.1 m deep and Station D was 0.04 m deep. Water level was low, only small ditch of water form 

 culvert between upper and lower Rincon Bayou. Hole in road covered with pile of fill. Station E, no water, 

 only damp mud with numerous worm casts. Station F, dry, only wet mud with occasional puddles, 35%o. 



8 April 98. Benthic samples. Station A, short Ruppia. Station B, surface of sediment with ~ 4cm loose flock 

 (mud), 16%o. Station D, water level up, C-5- water just to culverts with small channel or trickle of water 

 moving. Station D, large number of black drum feeding in area aroimd D, water flowing out toward bay. 

 Salinity from C to F was 12.9 to 30.2%o. 



9 July 98. Benthic samples. Salinity, high 104%o. Station A & B, very low water, oxygen low, lot of wading 

 birds and sea-guUs apparently feeding on Cyprinodon variegatas, etc. Stations C-F, water level normal, not low. 

 Station D, lot of larger fish, reds and drums. Salinity high C to D, 60%o. 



5. Aug. 98. Primary production. Rick KaJke with Kevin Neely. Stations A & B, dry, no water. Station C, salt 

 deposits on surface, only sheen of water on mud surface. Station D, basically dry, only narrow strip of water. 

 Stations 67 & 62, dry. Station F=61, 94.93%o, Station 83, 50.2%o, Station 60, 70.24%o. 



Starting in September 1998, 1 (Rick Kalke) began sampling with Ijynn Tinnin and Terry Whitkdge 's primary production 

 processes. 



29 Sept. 98. Primary production. Station A & B, water level up, 28.2 - 28.4%o. Stations C & D, salinities 

 indicate inflow event, 2.3 to 5.6%o, current going out of Rincon through culvert toward bay to Stations E & F, 

 22.1 and 20.8%o. Station H=68; river 0%o. 



28 Oct. 98. Benthic samples and collected water for Lynn Tinnin, not able to get water for primary production 

 samples. Major flood occurred on 17 Oct. 98. Water level had been high enough to wash out culverts and road 

 at the secondary diversion channel and washed a large portion of road out at Station D. We had to hike in 

 from the secondary wash-out to collect benthic and water samples from Stations D, E and F. Stations A & B, 

 water up, running from A to B, 2 & 1.5%o. Stations C-F , major freshwater flushing to 0.8%o. 



TDite to road wash-outs and I or wet conditioru we were unahk to sampk some of the lower Rincon Ba^ou Stations, i.e. Station D, 

 E, and F until 24 Feb. 99. 



18 Nov. 98. Primary Production. Stations A & B, water flowing from A to B, salinity 3.8 to 3.7%o. Station C, 

 water high, up to grass line along shore, about same in Oct. 98. Road real wet in spots, maybe a Uttie drier than 

 Oct. Station H=68, river up over sides of boat ramp to shoreline, 0%o. 



17 Dec. 98. Primary Production. Stations A & B, current from A to B, 14.6 and 14.7%o. Station C, 11. 7%o, 

 roads still washed out. Station H=68, river level back down to bottom of boat ramp. 



12 Jan. 99. Benthic samples. Stations A & B, 10.1 to 13.8%o, lot of water boatmen (corixidae) Stations C & D, 

 water in upper Rincon ponding 19.3%o & 19.9%o. Station E & F, had to hike in from Station D, low water in 

 their area, salinity 25 & 23.8%o. 



13 Jan. 99. Primary production. Stations A & B, salinity 10.8%o & 12.3%o. Station C, water golden brown in 

 color, 19.9%o. Station H=68, river 0%o. 



24 Feb. 99. Primary production. Stations A & B, water turbid, 15%o. Station C, salinity, 33.97, higher than 

 Stations D, E, and F. Water at Station D turbid brown color, flowing into Rincon, 2" deep in ctilvert. Station 



E, algal flat dry, Salicomia patches show fresh growth. Station F water to edge of grass and clear. Station H=68 

 salinity 1 .45, no flow over dam. First Nueces River Diversion Channel flow gage information. 



18 Mar. 99. Primary production. Stations A & B, water turbid 20%o. Stations C & D, salinity down to 19.33 & 

 28.85. Station E, high water line was up to power poles but currently at shore Une. Algal flat inactive. Station 



F, water turbid, up to grass line. Station H=68, river 1.25%o, no water over dam. 



Appendix G ♦ G-3 



