2012
Feb
23

The Stream

0

Introduction

On the second day of the new year,  Beng Tang, an avid conservationist together with his companion went on an expedition down the “stream” that runs through Bukit Brown. Concerned that development from the impending highway will encroach on  the habitat which is home to both indigenous and as he described it “foreign talent”fresh water  species, he set himself a mission to transport what he could “capture” to safer environs. We thank Beng Tang for sharing his expedition report and findings with a.t.bukitbrown and salute him for his effort.

The Set-Up

Setting up the traps

The Long View - Waiting

Yes, they are biting!

Prologue

The Bukit Brown stream is actually a man-made drain with sloping concrete sides, but it is well weathered such that a substrate of mud and sand and leaf litter has accumulated on it’s bottom and plants are growing in it. The water in it is slow flowing (except when it rains and it is in spate), and these factors make it suitable for freshwater plants and animals. Fish can lay eggs in the gravel substrate, fry can hide in the vegetation and eat invertebrates in it, animals can shelter in the plants when the water is fast flowing, and the decaying leaf litter and plants support a food web. Land animals can access the stream to drink or forage.

The Catch

The"stream" is overgrown in places, with substrate and dead leaves on the bottom, perfect for fish and turtles

Species of Spotted Barb and Danio including Kedah danio

Spotted Barb species, 2 inches long

A Malayan Box Terrapin lurks, the Bukit Brown stream is a good habitat for this native reptile

An easy albeit none too happy captive

Underbelly showing the hinges of the plastron

The banks of stream is for butterfly spotting

A New Home

Beng Tang making his way to release catch to new and hopefully safer  habitat. Location: the drain on the other side of Bukit Brown, near Ghymkhana Ave / Jalan Mashhor

Beng reports the terrapin made a dash for freedom

Part of the stream where the wildlife was released, seen from Woodbridge

Epilogue : Mission Accomplished or Not? -The Mystery of the Dead Eel
“The first fish I caught was this dead swamp eel (Monopterus albus), a native fish once very common in Singapore but now locally threatened (as are all our native fish) by habitat destruction. It was found on the stream bed being nibbled by small fish.” Beng Tang

How did the eel get to the stream? Who dun'it?