cichlidcentral
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Posts posted by cichlidcentral
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I recall back in 2000 the common smelt were also officially recognised as a legal white bait species as well, though they were known as second class white bait long before that.
only 5 Galaxid bait though, yeah.
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One trick for telling them apart is to look *very* closely at the top of the head. Bullies have sensory cells set in pores and/or canals around their heads. Typically non-diadromous bullies *do not* have open pores, while diadromous ones do. The confusing part is that non-diadromous populations of common bullies (normally diadromous) lose the pores over time, so some have random numbers of pores.
The above picture shows pores and canals on the head of common bullies, ranging from standard-diadromous on the left, to non-diadromous-population-for-a-very-long-time on the right. But also the right image is much the same for Cran's bullies.
So, the rule would be, for telling Cran's/commons apart, after checking head shape/pattern:
1. If there are any open pores, it is a common
2. If there are definitely no open pores, it is a Cran's or a common
3. If there are no open pores and it is in a lake, it is most like a common (Cran's don't live in lakes)
So out of interest, are these always present on the fish regardless of age? Will a young diadromous common express them or do they grow into them?
I also have a population where I suspect there may be diadromous and non-diadromous commons mixing so could be interesting to explore.
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Talking about Interesting Koura observations, has anyone else noticed heaps lower females in berry this year??
From Autum to spring the streams I sample are normaly full of them but hardly any around it seems. :dunno:
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I have seen this colony before,
but when I saw it on the news I couldn’t remember for the life of me if they were using landlocked or diadromous stock/both.... anyone know??
after the eel work surprised it took so long, time and money gets in the way though I guess.. =/
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The title of this thread made me miss a heart beat! too Cruel :facepalm:
I always wondered in reply to the isolated populations becoming disappearing was to blame in trout pheromones. whether like an Inanga who will follow any other Galaxid smell upstream, the trout pheromones were more attractive than their own, thus (assuming their was some decent movement in their marine phase) 'leading the lams to slaughter'.
I'm with you on getting some auzy ones over here too, makes more sense than good old grass carp, though I guess hard with such limited populations over there...
Will be cool to see them in your book!
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Yeah, salt is my best friend in such situations....
To Stella's call; if your sneaking north let me know!
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G.maculatus, inanga, like about 18
You just made me think when I'm sleepy :cofn:. I have a nagging feeling I'm forgetting something but here we go-
for a fish with distribution extending to tropical areas, are our stock more prone to higher temperatures than others? Briefly remember reading a study on south american maculatus temperature tolerance, may have to dig it up.
Guess could be of interest to gene flow study too.
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That's crazy!!!!!
out of interest, was her mate same age or an adult?
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That is a very nice looking native tank! Thank you for sharing... has given me a few ideas on the one I am setting up now...
I need more rocks! May go and visit a quarry or something on the weekend.
hahaha as you can see, I started this game as a cichlid keep back when I was 10.... now the bug never left me =P nor did the cichlids admittedly but they have bowed to the natives. I have been following your tank too, and seeing you are on the shore, do give us a yell if you need a hand!
horse hair... or is it tree algae? regardless the name i have plenty around if you fancy some! young bullys love it if you get to breeding them ;P
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You dont find that many koura too many? Then again I do have many bullies in mine.
tbh I've been hand feeding them their normal food to make sure they get their fill.
as far as territory goes I based number/size as closely to natural populations as I could (from pools often smaller than my tank!), so seam to have recreated a peaceful population structure.
stand in the water with torch
Find a nice transition between pool to run where the water surface is just starting to break up and hold said torch just above the water pointing up stream.
that makes sense actually! though I'm sure a snorkle and a underwater tourch would also do the trick
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haha both are present up here... torrents not as abundant as we may wish...
but tips on spotlighting them I would'nt refuse! :thup:
How high your tank? I use to to have more rocks in truth, had a whole planted out bank! but wanted to try out my upstream idea after some crays got the wrong idea after having no power for 5 days =/
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WE MUST go catch so torrentfish!!!( u need another tank)
cheers
again =P I'll prob get a large pond pump for one of the school tanks....
prob go some torrents and some red fin eh? =P
need some smelt 2!
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haha there ya go, cheers!
she's a 4 by two by two. gives a bit a room for some fun
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those didn't enlarge sorry...yell if you want links!
and sorry I only have the pic of my smaller banded.
:facepalm:
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I've had this tank for over a year now, but only just finally got around to getting some decent photos. Sorry to keep you waiting :roll:
This tank has got an Inanga(more will be coming!), 2 bandeds and 5 crays (along with plenty of macros)
This is my main native tank, but got a bully raising tank atm as well (will have a couple more tanks once my cichlids head back to school)
My whole tank (cant see top parts well, see next two photos)
My tank inside my tank! (acting as upstream)
other little waterfall for the other filter input
and some of the life within!
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Lol, with all these earthquakes about im beginning to wonder if they know something about Wellington we don't!
http://www.bbc.co.uk/nature/15945014
might be time to sit 'em down for a chat friend! :sage:
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I don't think it is rare. Large kokopu would chomp trout and vise versa. So far it is really only the galaxiid species with small adults or lake-rearing species that seem to get really hammered by trout.
McDowall often referred to their relationship being non-sustainable it in several texts didn't he?
eg-
"The giant kokopu appears not to be compatible with brown trout and tends to be found only where trout are rare or absent"- R.M.McDowall (A Natural History and Guide;1990)
Though in saying that, I cant think of any other Authors/studies to back that up....
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cichlidcentral trout fishing trip after exams? to help protect the native fishys? :slfg:
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Brown trout sharing an ecosystem with Giants???
I thought that was a rare occurrence, unless trout are new additions? :-?
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I wondered if it was a giant as well, but the bands do go all the way up and I dont know if they are 'random' enough for a giant.
I did think that the pattern was too deep/3D for a banded.
It was caught some 150km from the sea, but at a low elevation ~60m. I know there is a small population of giants a bit further down the waipa in a small stream.
they look far to circular compared to normal banded bands, remembering if it is a giant, it still has fair bit of growing to do, which may result in the pattern becoming less uniform? just a thought :dunno:
but I'm putting my money on Giant :spop:
(or some crazy hybrid between the two
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Hey Mason- fast turbid set up, few nice big rocks Ideal..
because of set up, Koaro(Galaxias brevipinnis) would be better suited than Banded koks....
tank size depends on how big really....
filters- strong out put
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meant to be something quite impresive from what I've heard :happy1:
taking them long enough tho.... :cofn:
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The only wildlife i have noted - after hours of staring and night lighting - is eels - am happily feeding them - some must be very old as they are huge!
A fast running steam also runs through the property - full of eels too.
Sad to see such a great body of water befefit of life - but do I just not see it?
Any ideas on what is going on here or visitor who can further educate me very welcome.
hey, sounds impressive!
If you want to be sure eels are all you got in there, which doesn't sound to likely, Id be happy to bring some nets and traps up and have a look with you?
I live in albany, so not tooooo far away, but would have to find a ride up there.
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Spot just behind Albany senior high school has some, can't remember name of the creek, easy to spot its under a bridge.
Oteha Valley has a good few, could give you a hand getting some if you wanted?
Lucas on the other side of the village is good to.
bully hybrids
in New Zealand Natives
Posted
Well you could possibly pull off a Tarndale bully x common bully, but that's probably cheating.
I'm sure I recall reading of a speculated common hybrid, possibly with a giant. Unfortunately I'm separated from my library currently so cant try validate that recollection for a few weeks.
Brendon