Tag Archives: mangrove

Torrens Island

1 Oct

Torrens Island and its causeway entrance are situated over the Torrens Island Bridge at the end of The Grand Trunkway in Port Adelaide; about a 30 minute drive from Adelaide’s CBD. The island is closed to the public but the small breakwater and causeway are open. Most of the island is a conservation park with the remaining area housing the power stations and some historic sites.

Road across breakwater looking back at hills

The island if flat and covered with mangroves, samphire and saltbush. The causeway has no vegetation. The mangroves that are accessible from the causeway and road are actually situated on Garden Island. The causeway forms a barrier between the Angas inlet on the left and the warm water outlet from the power station on the right as you face the power station.

Black-shouldered Kite perched on light pole

Numerous fish species including bream, mullet, whiting and Mulloway are attracted to the warm water. In turn, predatory birds such as: herons, pelicans, terns, gulls, cormorants and egrets are found in this area. Small mangrove crabs are found under the rocks in the intertidal region. Dolphins are not uncommon and best spotted from the bridge.  A population of common rats live among the rocks feeding on discarded bait but they are rarely seen during daylight hours.

Little Egret hunting near mangroves

The dominant vegetation seen from the causeway is the Grey Mangrove with small amounts of samphire. At low tide there are seagrass meadows visible through the fencing on the mudflats to the left facing the power station.

Mangrove leaves and fruit….note the waxy top and rough, paler underside where salt crystals accumulate.

Prior to European settlement the mangrove and samphire swamp areas were a rich hunting and gathering region for the local Kaurna people. They would have caught crabs and speared or netted fish as well as collecting shellfish.

Torrens Island power station

Torrens Island was named after Robert Torrens senior who was chairman of the SA Colonisation Commission. Between 1870 and 1980 it was a quarantine station for both animals and people entering the state. During World War 1 the island was used as an internment camp for citizens of German and Austrian backgrounds. Since 1963 much of the island and surrounding water have been protected areas and part of different marine reserves. Three power stations are operating on the island: Torrens Island PS since 1963, Quarrantine PS since 2002 and finally Barker Inlet PS since 2009. All are gas powered.

Fishing as the sun goes down

Fishing from the rocky causeway in the warm water outlet is popular. There are fine views of the ships’ graveyard and its wrecks from the bridge. Tours of the old quarantine facilities can be arranged through the maritime museum in Port Adelaide. In short, quite an interesting place to visit and combine with a day at Port Adelaide.

Cheers

Baz

Additional notes

This is an easy destination to visit and is quite suitable for families and seniors.

Please pass on this blog title and or contact information (URL) to any person or organisation with an interest in taking walks and enjoying wildlife in SA.

 Click on this link and see more South Australian stories and pictures in my Weekend Notes articles

https://www.weekendnotes.com/profile/651267/

Fish and Explore West Lakes Inlet

22 Jun

 Fish and Explore West Lakes Inlet 

Dear Reader:

The receding tide has left the mud flats exposed and several species of birds are making use of the food sources it presents. A Sooty Oyster Catcher is probing the mud for shellfish and a Masked Lapwing is looking for worms and other soft bodied animals. Their beaks, feet and hunting styles are well adapted for each individual diet.

 

Sooty Oystercatcher

 

Masked Lapwing

 

I am exploring the inlet between the Port River and West Lakes. The water flowers under Bower Road and there is access to both sides of the inlet. Lawns, shelters, public toilets and barbecues are available on the West Lakes side as well as free carparking and even a bike and skate park. Something for all the family!

 

Spinning for Salmon Trout

 

A nice Bream

 

On the Port side the water is flowing out swiftly and some anglers are casting for Salmon Trout while the lone fisherman on the West Lakes shore has caught a couple of sizeable Bream. The calmer waters of West Lakes allows me to explore some of the rock facings and photograph schools of small bait fish that are feeding on the surface.

 

Pied Cormorant

 

Both Black and Pied Cormorants are fishing in the area. They paddle along the surface for a while then dive and use their webbed feet and shortish wings to aid steering and propulsion underwater. Cormorants’ eyes are well adapted with special lenses that allow them to see clearly underwater. In addition, the jagged tooth like structures on the edges of their beaks enable them to grab and hold slippery fish.

 

Mangrove leaves and spider web

 

On the western side of the Port River Basin there is a significant growth of mangrove trees. They provide yet another significant environment. Numerous birds, insects, spiders and marine invertebrates inhabit this zone and it is very important as a breeding and nursery area for many marine fish species.

 

Small bait-fish feeding on the surface

 

My walk around the inlet has been most rewarding. Apart from the animals photographed I have also encountered Pelicans, Terns, Stilts and tiny Plovers. Grubbing around in the muddy areas on the fringes of the mangroves I found numerous shellfish species and some little mangrove crabs that live in holes and under rocks. 

 

Mangrove crab species

 

The West Lakes Inlet on Bower Road is certainly a diverse and interesting place to spend some time. Give it a try when you have a spare few hours.

Cheers

Baz

Additional notes

This is an easy walk/drive which is quite suitable for families and seniors with public toilets, barbecues, parking and other facilities nearby. It is dog friendly.

All the photographs for this article were taken using a Nikon Coolpix P900 

Please pass on this blog title and or contact information (URL) to any person or organisation with an interest in taking walks and enjoying wildlife in SA.

 See more South Australian stories and pictures in Weekend Notes

https://www.weekendnotes.com/profile/651267/

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