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Health Advisories Issued for Area Waters – September 25, 2015

As you might expect – after the heavy rain Monday there are health advisories for all three of the major bayous and for Big Lagoon.

 

Combined with that are some drastic changes in salinities for some bodies of water. Bayou Chico logged a salinity of 2.1 ppt (basically freshwater) but upper Perdido Bay logged in with a salinity of 18.4 ppt. This is unusually high for this location but could be explained by the strong high tide generated by the lunar eclipse earlier this week.

 

Perdido Bay was the only area with lower dissolved oxygen values. The upper bay reported 4.7 mg/L and the lower bay logged 3.7 mg/L (which is pushing the hypoxic level).

 

High levels of Karenia brevis (red tide) were reported along shore and offshore of Bay and Gulf counties (Panama City and Port St. Joe). This red tide is forecasted to drift southeast away from land. The FWC fish kill database is still down and so we are not aware of any fish kills in that area at this time. Background levels of red tide continue to be offshore of Manatee, Sarasota, and Charlotte counties in SW Florida. Read more about the current red tide at:

http://ocgweb.marine.usf.edu/hab_tracking/HAB_trajectories.html

http://myfwc.com/research/redtide/statewide/

 

 

UWF did survey within the last two weeks for inshore lionfish – none were found. Only two reports of inshore lionfish this summer – recently one was verified near Sherman’s Cover NAS Pensacola and the other was captured early in the summer near Big Lagoon State Park. Surveys continue.

 

The FWC Fish Kill Database is still down.

There has been concern about cases of Vibrio infection. We have posted an article about this bacteria which you can find at http://escambia.ifas.ufl.edu/blog/2015/07/10/what-you-need-to-know-about-vibrio-bacteria-in-gulf-waters/

 

Health Advisories – 4 reported this month

Fish Kills – none to report this month

Red Tide – none to report this month

Inshore Lionfish – none to report this month

 

Here are the numbers…

 

Oct 2, 2015

 

FDEP Data

Body of Water                   Temp (F)              Salinity (ppt)      DO (mg/L)           ENT        ECHD

Floridatown                            no data

Blackwater River                    no data

Bayou Texar                            76                    9.8                               8.7                   540      POOR

Bayou Chico                           77                    2.1                               7.2                   980      POOR

Bayou Grande                        79                    21.5                             8.0                   1150    POOR

Lower Perdido Bay                  78                    23.9                             3.7                   24

Upper Perdido Bay                 80                    18.4                             4.7                   390 (coliform)

Wayside Gulf Breeze              78                    26.6                             5.0                   12

 

HIGH SCHOOL DATA – FOR SEPTEMBER                                                               

Washington High sampled Texar on Sep 1 and 15.

Water temperatures declined over those two weeks

Salinities were between 10 – 20 ppt

Dissolved oxygen read 3.8 mg/L at station #1 (12th avenue bridge) on Sep 1 but increased

Station #1 had high nitrogen levels all month (1400 – 1800 µg/L)

Stations #3, #4 (near Bayview Park) were 0 µg/L

There was a significant increase in phosphorus at #3 (Oyster Barn boat ramp) on Sep 1

There was a significant increase in chlorophyll a at #2 (Hyde Park road)

There was a significant decrease in water clarity in the bayou during September

 

West Florida sampled Upper Perdido Bay between Jan-Apr 2015 – no report so far this semester

Saw a significant decrease in total nitrogen in the spring

Saw a significant decrease in total phosphorus in the spring

Chlorophyll a was much higher in Jan than anytime during the spring

 

Escambia High – no report at this time

 

ENT – Enterococcus bacteria; an individual sample should not be more than 104 colonies / 100ml

Fecal Coliform – an individual sample should not be more than 800 colonies / 100ml of sample

DO  – dissolved oxygen should be 3.0 mg/L or higher

ECHD – Escambia County Health Department  (Enterococcus bacteria)

Good               0 – 35 colonies / 100ml

Moderate        36 – 104 colonies / 100ml

Poor                +104 colonies / 100ml

 

FDEP – Florida Department of Environmental Protection

For more information on local water visit:

http://escambia.floridahealth.gov/programs-and-services/environmental-health/beaches/index.html

 

http://whs-ecsd-fl.schoolloop.com/cms/page_view?d=x&piid=&vpid=1395816840292&group_id=1395814370227&no_controls=t

Permanent link to this article: http://escambia.ifas.ufl.edu/blog/2015/10/02/health-advisories-issued-for-area-waters-september-25-2015/