Anyway back to the shrimp post:
It was a shrimpy day with Dr Sammy De Grave, from the Oxford Museum of Natural History! The informative session splitted up into 2 components. First and second parts were information about the shrimps, and the last part was about how we should collect them (applicable for Proj Semakau).
Though it was quite impossible for me (perhaps for others it's possible) to pick up the identification of shrimps, I think I learnt a thing or two. :~) Ok, so I missed the first 20 minutes of the talk because I had to rush from somewhr else before the talk... so yep first twenty minutes = nil information about our little friends!
Ok haha such irrelevant information.
Actually, according to Dr Sammy, prawns and shrimps are almost too similar so they just use the terms quite interchangeably... but they are not the same and they do have distinctive features.
Shrimps for exhibit.
Shrimp under the microscope, same as below :)
The long saw-like structure is the rostrum of the shrimp.
This is a snapping shrimp, the one that makes the "tucktuck" sound at Semakau. Interesting to note that there's a cavity in its claw, such that when the two claws snap, the action produces an air bubble which bursts and makes the sound. The shrimp belongs to the Alpheidae family, which is the second largest shrimp family, its the shrimp family that Dr. Sammy specializes in.
Collection methods include sucking the animals out of the substratum (sand, mud etc.), looking under rubbles, rocks, seagrass, on other organisms. HAHA, its so hard to identify shrimps. Here's a link that I'm trying to read now... http://www.chucksaddiction.com/shrimpanatomy.html