Thought you would enjoy my blackfish webcam, up for just a short time this summer. Camera is on an 80-gallon tank of 8 males; I’m monitoring territorial behavior. The tank is one of 4 set up in our research lab at University of Alaska Anchorage. These blackfish were collected with unbaited minnow traps in December 2009 from a shallow pond/wetlands site north of town.
<post edited August 1, 2012 by moderator, webcam link no longer active>
Alaska Blackfish Webcam
Started by
Guest_FishofSchool_*
, Jul 23 2012 12:09 AM
4 replies to this topic
#2
Guest_centrarchid_*
Guest_centrarchid_*
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- Guests
Posted 23 July 2012 - 08:17 AM
Are you getting to understand their language?
How are the females doing?
How are the females doing?
#3
Guest_FishofSchool_*
Guest_FishofSchool_*
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- Guests
Posted 23 July 2012 - 07:23 PM
Hi Jim,
Has been really interesting observing territorial behavior and aggression in these fish.
Our lab purchased two SeaChill aquarium chillers (https://www.tecous.c.../seachill-tr20/ ), great product--quiet, low maintenance, accurate. I tried some photoperiod/temperature manipulations during the winter. Need more females! Am rearing a few juveniles from a successful artificial fertilization last June.
I put your suggestion of using sphagnum moss (rinsed, soaked) as substrate to good use; the fish really like diving into it and hanging out in it for cover. Thanks for that very helpful tip.
Has been really interesting observing territorial behavior and aggression in these fish.
Our lab purchased two SeaChill aquarium chillers (https://www.tecous.c.../seachill-tr20/ ), great product--quiet, low maintenance, accurate. I tried some photoperiod/temperature manipulations during the winter. Need more females! Am rearing a few juveniles from a successful artificial fertilization last June.
I put your suggestion of using sphagnum moss (rinsed, soaked) as substrate to good use; the fish really like diving into it and hanging out in it for cover. Thanks for that very helpful tip.
#4
Guest_centrarchid_*
Guest_centrarchid_*
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- Guests
Posted 24 July 2012 - 10:33 AM
What are females doing in tanks? Any qualitative differences relative to males?
#5
Guest_FishofSchool_*
Guest_FishofSchool_*
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- Guests
Posted 25 July 2012 - 07:35 PM
A couple females "might" be gravid.
Large mature males do most of the posturing, seeming to set up territories of sorts and attacking interlopers; smaller fish always concede to these larger, aggressive males. Most “attacks” (the attacker latches onto the other's operculum, side, or mouth and holds on for many minutes) take place during feeding but are not limited to feeding times. My three juveniles produced last summer displayed aggression at a very early age.
Thanks!
Large mature males do most of the posturing, seeming to set up territories of sorts and attacking interlopers; smaller fish always concede to these larger, aggressive males. Most “attacks” (the attacker latches onto the other's operculum, side, or mouth and holds on for many minutes) take place during feeding but are not limited to feeding times. My three juveniles produced last summer displayed aggression at a very early age.
Thanks!
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