Aerial pictures of the Bot Estuary, courtesy of Jean Tresfon

The aerial pictures of the Bot Estuary, which follow, show significant changes in the estuary over the recent past. The estuary is tending towards a fresh water lagoon with lower biodiversity and the drastic changes which occur in the water level, even without breaching are a cause of concern in reducing the biodiversity of the system which rapidly swings from a saline system to an almost fresh water system.

The general water flow into the estuary has been significantly reduced for many reasons over the last decade. The increase in density of alien vegetation and the continued spread of alien vegetation is reducing water flows in the catchment area of the estuary drastically.

Aerial pictures of the Bot Estuary, are courtesy of Jean Tresfon who takes very informative and wonderful pictures.

Mouth of the estuary, very high water, strong flow to Lamloch 08/10/2011
Middlevlei, very high water, bridge partly flooded 3/10/2011
Mouth of the estuary breach 13/12/2013
Estuary from Arabella, reasonably high water 24/07/2016
Fisherhaven, medium water 9/8/2016
Hawston comanage through to the estuary 9/8/2016
Water not flowing to Kleinmond, much of the flooded area now filled with sand 9/8/2016
Lamloch swamps. No water from the Bot estuary 12/1/2014
Mouth of the Estuary, some flow towards Lamloch 11/1/2017
Bot River north from Arabella 04/05/2017 Reasonably high water
Estuary from Arabella, relatively low water 27/3/2018
Estuary mouth, relatively low water 27/3/2018
Estuary mouth little more water, but still low 8/8/2018

Botfriends alien clearing program (BACP) is a funding proposal to clear much of the alien vegetation around the estuary, which will increase clean water flows into the Estuary.

The present status of the estuary (January 2020) is that it is dropping again and the sandbar is twice as wide as the 2018 picture. The open sand dune on the left is extending across the sand bar and is twice as big. Could cause some major flooding if we have very good rains.

Latest Posts

© 2019-2023 Greenheart Projects. All rights reserved.