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Water Hyacinth?


Water Hyacinth?
Photo Information
Copyright: Murray Lines (mlines) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 556 W: 26 N: 668] (3116)
Genre: Plants
Medium: Color
Date Taken: 2006-09
Categories: River
Camera: Panasonic Lumix DMC-FZ20
Photo Version: Original Version
Date Submitted: 2007-03-21 5:37
Viewed: 4940
Points: 6
[Note Guidelines] Photographer's Note
This is the thick green plants growing on the side of the Mekong River near the township. Unsure what it is exactly but suspect some part of it is a food source in some season as very abundant near the riverside township. It certainly looks healthy. No PP apart from cropping to reduce the photosize.
Saw a similar photo on TE by YahWen Ho (ywho79)so mystery ID solved.

Water Hyacinth?
The control of water hyacinth in many countries around the world is a spectacular example of successful biocontrol. Water hyacinth, a native of the upper Amazon catchment, is one of the world's worst aquatic weeds and was probably imported as an aquarium plant. It is first recorded in Australia in the 1890s. Once in rivers, dams and lakes, it can double its size within a few weeks, forming mats which impede the use and ecology of the waterways.

Several biocontrol agents were released in Australia in the 1970s and 1980s, building on the initial research done in the USA. The tunnelling larvae of these insects achieved good control in impoundments in sub tropical and tropical eastern Australia.

But it is overseas where CSIRO's expertise has had the most spectacular results. Most control has been achieved by two weevils, Neochetina bruchi and N. eichhorniae. Massive infestations in the Sepik River lagoons (Papua New Guinea), were cleared in less than five years. Similarly, in collaboration with a range of organisations, huge infestations in Lake Victoria (Kenya, Uganda and Tanzania) were cleared of water hyacinth in less than three years. The technology has also been used by others with dramatic effects in Benin (West Africa), South Africa and Thailand.

www.ento.csiro.au/biocontrol/hyacinth.html

JPlumb, pablominto, pierrefonds has marked this note useful
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Critiques [Translate]

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  • JPlumb Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 618 W: 158 N: 896] (2904)
  • [2007-03-21 18:53]

Hi Murray, it's certainly very green. There's a lot of repetition going on here; it might make a great poster. Can't help you with the ID but I like the shot.

Thanks, John

Hello Murray,
The different shades of green are very attractive!
The image has fine details, and is captured with rich colours, well framed!
Greetings,
Pablo -

Hi Murray,

A good POV of the water hyacinths, the photo has a good composition, sharpness and nice colors. Thanks for sharing.

Pierre

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