Project Driftnet: data on abandoned driftnets

Hello! We are a group of scientific officers from the National University of Singapore and ordinary volunteers. This survey aims to find out more about abandoned driftnets on Singapore shores. The data will be invaluable in helping us better understand the impacts of abandoned driftnets on Singapore's marine life.

Your data will be incorporated into our database of information. Do visit our blog for the latest on the Project: http://projectdriftnet.blogspot.com/

Some additional notes on driftnet recordings:

For nets that are partially buried, after collecting the data you only need to cut away and remove the portion of the net that is not buried.

Please remove the net from the shore and dispose of it properly in a designated rubbish bin. Do not leave the nets on the high shore as it may wash back onto the low shore. High shore animals such as birds, monitor lizards and crabs may continue to get trapped in such nets.

If the net is very heavily encrusted with sponges, large seaweeds, only heavy ropes visible, most of net already degraded, such nets should ideally be left on the shore as they have become part of the ecosystem.

The survey will not take more than 30 minutes of your time. We appreciate your participation and time in collating these data.

To send us your photos or links to your uploaded photos or blog post, or If you have any queries, please feel free to drop us an email to Ria at hello@wildsingapore.com, or Zeehan at dbszj@nus.edu.sg, please put "Project Driftnet" in your subject header.

Thank you for your invaluable data contribution!

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    Condition of net

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    Measuring the mesh size of a net

    Nets may be made up of several layers. For each discernable layer, take three readings at separated intervals on the net. The mesh size is taken diagonally, see this video clip for more details on how to measure the mesh size http://www.youtube.com/watch?v=leYB-cQHMhs If you can only find one layer, it's alright.
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    Animals found trapped in the net

    Please record data ONLY for animals found trapped in the net. These can be (a) Large animals such as crabs, prawns, shrimps, fishes, horseshoe crabs, monitor lizards, birds, snakes, etc. (b) Large immobile animals that have been ripped from their attachment by the net such as sponges, sea fans, corals There is no need to record very small animals (less than 1cm) found in the net.
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    Morphometry (Measurements) of Animals

    Take photos of the animal First, as it is found entangled in the net. Then, after it has been removed from the net. Gently measure the animals as follows: Fish: from tip of nose (snout) to end of the body before the tail begins (don't include tail fin length). Shrimp: from tip of nose to tip of tail. Horseshoe crab: from front of body to end of body without tail, if tail is present, separately include the length of just the tail. Crab: across the body at the widest point, do not include length of legs.
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    Found more than 15 animals?

    Could we please trouble you to fill out a new form, but you only need to enter the contact person's name, date, time and location of data collection (so we know it is the same net). Then just add information about the next 15 animals. Thank you for your patience!
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