Monday, June 14, 2021

St. Lucia estuary is closed again.

 Greetings and THANX for reading here. I have had reports that the St. Lucia estuary mouth, which opened on 6 January 2021 closed again with the storm that we had as a cold front passed us in early June 2021.

Sunrise over eastern shores of lake St. Lucia, taken on the eastern cliffs of Nibela Peninsula 


The water levels at Mpilo Einde on the Nibela Peninsula are currently rather high. The issue appears to be the reed growth and silt deposits in the narrows and the delta around Broadies Crossing. The heavy reed growth and DELTA type waterflow channels here causese  water from the Umfolozi to slow down and drop it's silt load where it will cause the most long-term problems.

The fact that the mouth at St. Lucia is closed again is not a positive sign for things to come. Remember the 2017 Rehabilitation project undertaken by the Andrew Zaloumis management strategy, well it is my opinion that this strategy has caused serious damage to the biodiversity within the St. Lucia lake and estuary systems. It has also connected the main stream of the Umfolozi River directly to the St. Lucia lake systems, without first flowing into the Umfolozi floodplains to drop off the the larger silt particles as the water flow spreads out into both the Monzi flat lands and the greater Umfolozi flood plains. 

This means that the greater portion of the Umfolozi River silt load is now being deposited within the St. Lucia lake and estuary systems. This silt has been building up with each serious rain within the Umfolozi River catchment zones. When the flood waters subside, the silt remains. From 2017 till the St. Lucia Estuary mouth was breached artificially on 6 January 2021 these many tiny, small and mild flooding episodes within the Umfolozi catchment zones has each contributed just a little to the raising of the estuary and lake bottoms.

In some areas like the Sokulu farming zone within the base end of the Umfolozi flood plains, these large scale silt deposits have generated reed blockages which have grown to form water flow barriers, retaining high water levels at specific naturally occurring constrictions, causing long-term back-flooding.

This long-term back-flooding is a serious problem in the Sokulu farming zone, Which will only be solved by mechanical intervention, or dredging of the main water flow channels to below sea level.  This will be a mamoth task, just as dredging of the water flow channels between the northern sections of the lake and the actual estuary mouth, will also be a rather large task.

These are all, in my opinion logical issues, that can be easily seen, and understood by the average person. However past public perception management STRATEGIES of the IWPA (iSimangaliso Wetland Park Authority) has laid a foundation of confusion around waterflow, mudflow and intertidal actions.

The base end of the Umfolozi flood plains in the Sukulu area used to be tidal once upon a time.. Long ago. Silt deposits from the Umfolozi River have taken their toll and filled the area with furtile soil over many generations. Now with " GLOBAL WARMING and CHANGING WEATHER PATTERNS" we as humans need to do what we can to firstly survive, then where possible prosper and enjoy lifes many bounties.

Enjoying something does not mean destroying the available natural renewable resources, so these need to be managed in a sustainable manner, and that starts with understanding the breeding and life cycles of our natural renewable resources. The St. Lucia Estuary and lake systems used to supply abundant natural renewable resources, and many up and down our coastline enjoyed this abundance. 

The extremely poor / bad ecological management of the St. Lucia lake and estuary systems by the Andrew Zaloumis management team has ensured that these natural renewable resources within the iSimangaliso Wetland Park have been seriously compromised, and in some cases even destroyed.

We want our heritage back, and have thus taken a stand on the issues around natural renewable resources and section 24 of the South African Constitution, which some folks will not appreciate, purely because their thinking has been contaminated by public perception management from those folks who want to see high end international tourism in places where nature provides us with sustainable natural renewable resources. These tourism opperators, and their high end investors, do not want to share with the folks who are living in the areas that they want to turn into tourism wonderland.

What to do ? Which way to turn?

Leave a comment and share your views.

In my next post I will discuss #Section24 of the South African Constitution. 

#Frankie2Socks 

No comments:

Post a Comment