EstuaryWatch Data Portal
GMC Gellibrand River Estuary Mouth Observation Site
Active Mouth Condition 20-04-2007 - 19-04-2024Gellibrand River Estuary
ID | Date | Status | Details | |
---|---|---|---|---|
#11662 | 15 Dec 2017 | Approved |
Notes:
Very slight pale discharge going out to sea just east of entrance. Reducing flow despite observations being taken close to hi tide Only very narrow shallow channel flowing between last rock & cliff. Waves however are entering over wider area & going across from east side of rocks to cliff. Beach very flat with sand build up extending nearly across the entrance. Recent swash lines indicate waves going far up on beach. Backwash areas at mid beach are being scoured out into shallow N/S depressions. A lot of sand visible in breakers in that area & also directly out from mouth. Only part of sand bar visible Algae in shallow water beside low track. Some in various stages of decomposition. Large no. small bubbles in one area. Moths wings also in these areas. In the shallow water along side low track there are large no. small very active fish. 6 White headed Herons actively feeding in these areas Red silt/algae over dark black slimy deposit noted in shallow water of estuary at start of low track |
|
#11635 | 6 Dec 2017 | Approved |
Notes:
AHD @ G6 1.21 Pale discharge out around the mouth & slightly to east. Water levels dropping after recent rain event. Swash line from last hi tide is high up on beach clearly indicated by dark silt. Beach has been reshaped (possibility from recent short swell times & directional changes) with more sand close to entrance. No flow between eastern side of 1st rock & beach More rock down from the south face of Pt Ronald |
|
#11618 | 30 Nov 2017 | Approved |
Notes:
G6 AHD 0.80 @ 08:00 (estimate only as board still covered with silt) Slight very pale discharge out around mouth then paler- travelling along foreshore toward east end of beach. Increased sand build up at east side of channel D/S rocks (water level low). Only narrow shallow flow on east side of rocks. Waves across mouth, sea slight but with occasional higher sets. Water colour in estuary very reddish & clear Snipe at G6 & Pied Stilts on north wetlands. |
|
#11617 | 24 Nov 2017 | Approved |
Notes:
Observation taken late p.m. Very slight pale discharge out around mouth dispersing out to sea about 50m. east from cliff. Very small waves entering & proceeding along channel into estuary. Longshore drift across entrance. More sand has built up in channel & east side of channel DS rocks, but water still flowing out on both sides Large amount of dead algae,scum & bubbles along waters edge low track. Large no. of small fish in this area Water levels have dropped @ G6 but board still covered with silt = estimate only about 0.78 @ 12:51 |
|
#11600 | 17 Nov 2017 | Approved |
Notes:
Very slight discharge out around the mouth. water still on both sides of the rocks with more sand at entrance. Some waves entering into channel & estuary Beach highest at east end but wide very slight runnel forming behind beach front & dunes |
|
#11573 | 6 Nov 2017 | Approved |
Notes:
Dark discharge out & along beach front to east. Flow reducing less rainfall & less discharge from flats as nearly drained- except around G5 where Cape pond weed is prolific. Large rock fall has occurred from directly above the existing 2 rocks across the channel & deposited a third one almost in line in the area of main flow closest to cliff face Recent storms & very rough / high seas have reshaped the beach & brought more sand to entrance & channel. Sand clearly seen under water D/S rocks & channel more narrow. Sand bar in estuary is visible & a large area of sand extends from south side of estuary north into the estuary. Large areas of debris from storm surge piled up along the south east side of the estuary. Green algae is covering some veg. alongside area of low track - also silt laden seagrass is uncovered |
|
#11543 | 20 Oct 2017 | Approved |
Notes:
Small waves entering Estuary Long shore drift across the entrance with sand building at entrance around rocks with water flowing either side Sand in estuary slightly visible Foam visible at entrance and large amounts of sand visible in the rough sea breakers Horse tracks visible on low track, peregrine falcon soaring on the strong winds, many bushes flowering, particularly pink ragwort (senecio elegance) |
|
#11514 | 16 Oct 2017 | Approved |
Notes:
Discharge out to east, waves from longshore drift across mouth sending small waves down channel into estuary Beach highest at east end, curved to about half way then projecting out to sea. Height then reduces toward west. Eastern end is higher. Occasional waves going over beach front, then waves travelling to west along depression. Dunes at east end have been eroded back to stratified sandstone & sand now covers the previously exposed ocean reef. Maram grass re veg occurring at base of dunes closer to entrance Another dead kangaroo on beach close to east end Senecio elegans prolific along low track, western cliff face & in sand dunes Water has drained around G4 but large areas of visible water remain around G5 |
|
#11496 | 7 Oct 2017 | Approved |
Notes:
Dark discharge out around mouth & along foreshore to east end of beach where it turns out to sea. Small waves entering over out flow. Longshore drift active across mouth. Flow on both sides of rocks but sand build up visible under water in front of rocks Beach highest at east end. Large amount of dark silt & debris in swash line, heavier concentration at east end Extremely large expanse of sand exposed on south side of estuary & across sand bar. Sea grass (blackened) exposed on exposed sand beside low track. Very small flathead Gudgeon/ Tupong trapped in pools left by low water level Hooded Plover tracks in many areas along ocean beach -no nests sighted. 4 Pelicans, 2 Shell duck, 1 White egret, small Cormorant on sandbar
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|
#11466 | 22 Sep 2017 | Approved |
Notes:
Dark & dirty discharge out around mouth & along beach front to east. Large amount of sand visible in breakers directly out to sea at entrance. Silt & debris in swash line along beach Small waves entering, travelling down channel going across estuary from S to N Small fungi found on top of sand dune. 1 peregrine falcon along cliff face. white egret, Grey teal & Cormorants on edge of sand S. side of estuary |
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