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October 31st 2013

30 Oct 2013 ="post-tag" > Written by  ="post-tag" >

halloweenIs it really Halloween again? oh what to do.. You could stay indoors and refuse to answer the door to anyone, or embrace trick or treaters with open arms and poisoned sweets. Or you could get completely into the spirit of things and spend (in some cases) minutes, days or even weeks agonising over a suitable constume to wear at the bar. After all, it's not every day you can be a roller disco murder victim.
Halloween is one of the biggest nights of the year on Koh Tao, and considering we don't have any proper novelty shops, people have to be really inventive with their costumes. It all makes for a great night out, followed by a confusing morning wondering why you're wearing a wig and an eye patch that you're pretty sure you didn't have on when you went out. This year's party is going to be especially big. We have a celebratory send off organised for our new SSI instructors Sofia and Wolfgang, and we have a divemaster challenge for our newly qualified DMTs. All on the same night, at the same bar.. it's going to be messy! We expect most of our dive instructors, divemasters and DMTs to get dressed up, but it's always brilliant when our customers also get into the swing of things and come up with their own creations. How often can you say you've been stood in the bar, and looked over to see Batman & Robin having a chinwag with spongebob squarepants?
So if you're on Koh Tao, come down and have a look, or better still get involved and wow us with your costume, just please don't be offended if you get complimented on your outfit and then have to point out "but i'm not wearing one".. Now if you'll excuse me I have some shopping to do, I need to buy an orthopedic shoe, a monocle, and a one-piece tracksuit with yellow piping.. nothing to do with halloween, I just need a new look.

Parrotfish explorers
parrotfish300x169Researchers in Australia have been busy mapping the movements of parrotfish in order to find more about the size of their territory, and determine how far they wander throughout their lives. It turns out that they expand their range rapidly as juveniles, but this stops when they mature into adults. Researchers focussed on three species of parrotfish, and tracked 75 individual fish during the study. Generally, the diet of a species influences how rapidly its home range has to increase with its body size so that it can find enough food to meet metabolic demands. Yet with parrotfish the researchers found no evidence of a change in diet affecting the way their home range relates to their body size. So effectively, diet doesn't seem to be the driving force in them exploring new territory. The reason for the early wandering seems to stem from the need to find as much food as possible so that they grow quickly, which in turn reduces the amount of predators able to eat them- similar to reptiles.
The reason their territory stops expanding as adults is thought to be because they engage in complex social relations, and it makes sense to keep a potential mate as close as possible, something that would be much harder to achieve with a huge territory. Researchers conclude that "The fact that a fish's social environment can have such a dramatic affect on their home range size opens up endless possibilities for new research." Fascinating stuff, but clearly still a lot more research needs to be undertaken.

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Read 1178 times Last modified on Tuesday, 24 October 2017 08:24

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