Aug 2009
CARES Fish preservation group
23/08/09 00:18 Filed in: Fish
I only recently found out about the CARES fish preservation program. The basic idea is that it’s a group interested in getting responsible fishie-people to help ensure the survival of certain fish species.
I mentioned this to a friend at work who seemed skeptical. “Wouldn’t it just be better if people left them alone in the wild?” Well, yes and no, depending upon the circumstances. The easiest example to take is that of the African rift lake cichlids. These fish are found often only within a single lake in the wild.
In the case of Lake Victoria, one of the 3 lakes, many of the fish are either very endangered or already extinct. This is not due to people taking fish from the wild for the aquarium hobby. Instead it is due to the introduction of non-native fish species into the lake, the Nile Perch. The non-native species did not have much effect for about 20-30 years, but sometime in the late 20th century the non-native species began to dramatically out compete many of the native fish. Since these fish are only found within a single lake (albiet a very large one), that’s all it took. If I’m recalling correctly, the loss of various fish species from Lake Victoria is around 250-300 distinct species during the past 3 decades. That’s about half of all the fish species in that lake. However, some of the species managed to find suitable new homes in aquariums throughout the world. It’s because of this that some people in the aquarium hobby now have fish that are in fact extinct in nature. There are many other species that are critically endangered in the lake and, sadly, will probably only be found in captivity soon.
Because the entire ecosystem of the lake has changed, it is not a matter of simply putting these fish back into the lake. In fact, I’m not really aware of any great solution that will work in the long run. However, at least for now aquariums, zoos, and even hobbiests can help to keep the species alive.
As such we’ve decided to keep a couple of fish colonies that will be dedicated to endangered fish. We have 2 different groups in 2 of our tanks. 1 group is from Lake Victoria itself and is the Haplochromis obliquidens. So far we only have 4 of them, 1 male a 3 females. However, the male is very colorful and bossy. We expect a female to be holding soon. We’ve also go a tank setup around Tropheus duboisi Maswa with 19 of the little guys in it. Right now they’re all too young to really breed. But we’ve obtained them from 3 different sources to help keep them diverse and are optimistic.
I should try to post pictures soon.
Coltrane's Sound
21/08/09 09:11 Filed in: Music
Wow. I’ve had this album for about 7 months now and it’s still just incredible, Central Park West especially. If you like good Jazz, do yourself a favor and listen to it.
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Travel Oddities at the Gordon Conference
01/08/09 21:42 Filed in: General Science | Science Anecdotes
We’ve had an interesting turn of events at the Gordon Conference this year. Everyone from our current group is attending the conference. Indeed, a rather large number of people from ANL are all coming to the conference. Interestingly, there only appear to be a handful of us here so far.
Kerri and I took a rather odd route to get here. We went first to NY (in order to stop there for a significant period of time on the way back) and then up to Maine the next evening. Needless to say, I doubt anyone else went first to Albany and then took a car up to Maine.
The lab uses a single travel agency for official travel. It seems that there were 8-9 x-ray science people from ANL all booked on the same flight, including everyone else from my group. This flight turned out to be a “nightmare”. There were significant delays before the flight left Chicago. It then made it about half the way when one of the pilots was walking back through the cabin a few times. The plane then turned around and went back to Chicago with a “technical problem.” Apparently 1 of the instrument flight systems on the plane had failed (1 of 3, so it’s not that the plane was without sensors), but it made it such that they did not wish to attempt an instrument landing (and indeed we had fog, wind, & rain).
ANL people should be slowly trickling in tomorrow.
Anyhow, thankfully I’m here and my talk isn’t for a couple of days anyway.
I’ve never been to Maine before and the country looks just beautiful here. In fact, this entire trip has really made me miss the northeast countryside.