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Malaysia 2013

Home Forums Field Trips & Conservation Malaysia 2013

This topic contains 0 replies, has 1 voice, and was last updated by  Matt 1 year, 11 months ago.

Viewing 15 posts - 61 through 75 (of 81 total)
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  • #353128

    Plaamoo
    Participant

    Very cool Matt! Not really where you’d expect to find the stiphodon. Spawning maybe?

    #353129

    Matt
    Keymaster

    Cheers Jim! They’ve only ever been recorded with certainty in this one stream and apparently are always there – the tributary is pure freshwater but the main channel is pretty salty and they’ve not been found in other rivers on the island or elsewhere as far as I know. We had the feeling they’re restricted to a stretch of just a few hundred metres as the terrain starts to rise pretty sharply just after where we found them. If you look towards the top of this pic you can sort of see what I mean?

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    #353130

    Plaamoo
    Participant

    Interesting. I guess I always envision them in bigger, more robust water. From odyssey’s pics I guess.

    #353131

    Matt
    Keymaster

    Me too before seeing this. It’s a really isolated population – maybe the Stiphodon with the smallest distribution?

    #353132

    Plaamoo
    Participant

    That makes it extra special that you got to see them! Who knows how long they’ll exist?

    #353133

    Matt
    Keymaster

    It was a real privilege and unless something major happens with the tilapia or the village chief going nuts and selling all the land, for example, they should be alright for the forseeable future at least. Only wish I could’ve caught one of the nice blue males. :(

    #354397

    sinnick
    Member

    Great thread and wonderful documentation process. I’m very impressed that you could identify almost all the species you caught while collecting. 

    Awesome work, thanks for sharing!

    #354489

    Matt
    Keymaster

    Many thanks and welcome to the site sinnick! You’ve given me a timely reminder to add some more pics here. :)

    Following the Tioman trip we were reaquainted with our rental car in Mersing and set out north with the aim of reaching Terengganu in order to meet my good friend Amey Ahmad, a local scientist who was to be our companion for the next week of our journey. On the way, we planned to sample a large area of peat swamp in southern Pahang state with the intention of collecting Betta tussyae. Unfortunately, this day proved to be a total flop – a new road is being constructed right through the middle of the forest and the swamp, or at least the accessible parts, proved to be totally dead in terms of fishes. Despite numerous stops, we saw only a single Channa specimen all day which was pretty depressing because this habitat was apparently pristine a couple of years beforehand.

    Degraded peat swamp habitat in Pahang state. Nepenthes possibly N. gracilis (?):

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     Haze on road caused by burning of forest (pic taken in car):

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    New channels directing industrial effluent and subsequent effect on water quality; doesn’t look good. The Nymphaeaceae sp. is presumably growing so well here due to an increase in nutrients – does anyone know if it is a native plant in Peninsular Malaysia?

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    #354552

    Matt
    Keymaster

    Early morning forest mist at Muadzam Shah

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    We first tried to check a freshwater swamp close to the town, but found that adjacent forest had recently been cleared to make way for new housing, and the swamp appeared to be in a fully eutrophic state. No fishes were recorded here, just a solitary purple heron.

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     Not what we wanted to see…

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    We then made a very brief stop at Tasik Bera, but didn’t bother to fish as the place was full of people. A few large rasboras, juvenile Hampala and other cyprinids were visible in the shallows.

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     On our way back to the coast we found this modified, but promising stream flowing through a small forested area.

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     Rasbora enthovenii

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     Miserable-looking Desmopuntius hexazona

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    Trichopsis vittata

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     Should be Betta pugnax (?)

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     Next stop was a stream which flowed into nice-looking forest on one side of the road

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     Unfortunately, on the other (upstream side)

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     Not a good place for fish, and we only saw some nice odonates here (there is one, probably Archibasis rebeccae, in this pic).

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    Paragomphus capricornis?027.jpg

     Unsure about this one; Diplacodes trivialis?

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     Last stop of the day was another degraded stream flowing through an oil palm plantation

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    Hemirhamphodon pogonognathus

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    Barbodes binotatus here had a nice golden sheen

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    #354554

    Plaamoo
    Participant

    Thanks Matt! A lot of fish in that one little trickle! Maybe all they have left? It’s really depressing how the area is being degraded.

    #354620

    Matt
    Keymaster

    Right Jim. I’d been told before the trip that the southeastern part of Peninsular Malaysia was already more-or-less gone, but wanted to see for myself. It was an eye-opening and worthwhile part of the trip, but pretty boring fish-wise.

    Continuing our drive up to Terengganu, we followed the coastal route rather than the main motorway in order to visit the type locality of Pangio alcoides, since we don’t have any live photos of it.

    Passing through Dungun.

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    The type locality of Pangio alcoides is given as ‘Stream at 154 stone on road to Kuantan from Kuala Terengganu, Rantau Abang, Terengganu, Malaysia’. This road runs through a coastal floodplain that evidently held plenty of water in the past (or perhaps still does on a temporal basis), but at the km 154 stone we only found some small pools in an otherwise dry stream bed. Regrettably, no fishes at all were found here despite some intensive effort.

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    Arriving to Terengganu at last we made our way to the university, where we dropped off our hire car, spending our remaining time in Peninsular Malaysia with Amey, Sy, and their 4×4! This facilitated access to more interesting, i.e. remote, places and unsurprisingly, we started to find more species. Our first stop was a partially degraded coastal swamp close to Terengganu which contained nice black water. I buggered up the camera settings here so pics look slightly odd.043.jpg

     

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     Aplocheilus panchax

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     Trigonopoma gracile

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     Trichopsis vittata again

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     Desmopuntius hexazona

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    Young Rasbora caudimaculata

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     Lepidocephalichthys hasselti

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    #354854

    Kajsa12
    Participant

    Nice pictures, Matt.

    Especially liked the ones of the S. aureorostrum habitat.Smile

    #354885

    Matt
    Keymaster

    Cheers Henri!

    #355275

    Matt
    Keymaster

    Time to add some more pics here. Wink

    The next morning we fished the lower reaches of a small, coastal black water river. Our colleagues only informed us of the crocodile risk here post-sampling!!!

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     Sampling

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     Desmopuntius johorensis

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    Channa lucius juvenile

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    Osteochilus spilurus

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     Pristolepis fasciata

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    Macrognathus maculatus

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    Rasbora cephalotaenia

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     We also checked out a ditch which is sometimes connected to the river.

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    Bubble nest of Trichopodus trichopterus.

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    Channa cf. gachua

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     Silurichthys sp.

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    #355276

    oaken
    Participant

    Great!

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