Tropheus & Petrochromis Published Journal Links

[myjohnson]

17)http://jambo.africa.kyoto-u.ac.jp/ki...i%20MBOMBA.pdf

"Comparative Morphology of the feeding apparatus in Cichlidian Algal Feeders of Lake Tanganyika" by Mbomba.

Again, too drunk to read this. But I'm guessing it's a good read to go along with the one above.

[myjohnson]

16)http://www.africa.kyoto-u.ac.jp/kiroku/asm_normal/abstracts/pdf/ASM%20%20Vol.4%201983/Kosaku%20YAMAOKA.pdf

"Feeding Behaviour and Dental Morphology of Algae Scraping Cichlids in Lake Tanganyika" by Yamako.

Just founds it....to drunk to understand what it's saying. I'll give a little report when I have the time to read over it.

But it does look like a good one!

[myjohnson]

No problem bro. I told you months ago I would but I just got around to it cause the Bar was taking up a lot of my time. None the less the articles are posted.

[geoff_tropheus]

your my boy Blue!

Thanks Thai for posting these references.

[cichlid1409]

yeah it seems that we should really only be worried about x-breeding when 2 variants resemble each other closely (which i've heard people say on here) like sp. reds.

[myjohnson]

overall its very interesting circumstances which allowed for this study.

+1. Think about all the other "circumstances" that goes unreported.

My general concern in reading the article is that it might leave a false impression on tropheus keepers that these fishes x-breed less than they actually do. However, it should also be noted that most people are over concerned with hybridization in a tank. Guess the truth is somewhere in the middle.

[cichlid1409]

5)http://www.pubmedcentral.nih.gov/art...=1560039#bib60

"Colour-assortative mating among populations of Tropheus moorii, a cichlid fish from Lake Tanganyika, East Africa"

Read it over and over and it's been published for a while now. I wonder if the conclusion would still hold true b/c for sure we see cross breeding in our tanks.

Coolest info:

"In June 1998, local fishermen collected about 300 adult individuals of T. moorii from several sites in the southern part of the lake, with the intention of exporting these colourful fishes for the aquarium trade. Owing to the fact that the fishing was carried out without concession, Zambian authorities refused export permits. Instead of returning the fishes to their original habitats, as instructed by the local authorities, the catch was released in a small harbour basin of not more than 200m2 in size in front of the Fisheries Department in Mpulungu, Zambia (L. Mwape 1999, personal communication)."

Summary of article: females are picky. Guess their a lot like humans.

this report doesn't seem all that conclusive. the fact that for most individuals they could only identify 1 parent leaves a margin for error. since they can only base the other parent on expressed phenotype of the offspring, theres no way to tell if the genotype of the unknown parent is the same or recessive to the known parent. therefore the fry could be heterozygous for a dominant phenotype with two parents from different locations of the lake. more genome mapping is needed for this report but that takes many years. overall its very interesting circumstances which allowed for this study.

[cichlid1409]

give me time i'm going down the list, geoff if you havn't read these reports get on it. i can't imagine anyone else on the box enjoying them as much as you.

[myjohnson]

lol, take a step back and read what you just posted out load!

When did you get your PhD?

Read some of the ones about DNA testing and tropheus lineage. You'll be surprise by the historically hybridization of these fishes.

[cichlid1409]

2) http://www.geo.arizona.edu/nyanza/pdf/Gilbert.pdf

"Impact of Sediment Pollution on the Littoral Zone of Lake Tanganyika: A Case Study of Two Cichlid Fish, Petrochromis polyodon and Tropheus brichardi."

very interesting , i had heard about how we as hobbyists affect the populations of lake tanginyika but this shows something i had never thought of , even though its obvious if you think about it, urbanization and deforestation for planting crops has seriously affected numbers of these species due to sedimentation of littoral areas.

[myjohnson]

No problem dude. Just sharing the info. I myself have to sit down and read the articles time and time again. I just don't understand the stuff to well.

All those PhD guys are planing to just confuse us!

[cichlid1409]

thanks for these links johnson. just read the first link, although it didn't offer me much new info it was a detailed report and a good read. i hope to read through most of these as i get the time.

[myjohnson]

J,

I had these articles for a while. Posted them on other forums too. Just thought it would be a source for people here on the BOX if they wanted to read this stuff.

I can't understand half of it.

The only person that can fully understand this Ph.D. mumbo jumbo is Mike.

That's when he isn't all boozed up that is....

[J-WS6]

Wow, lots of good data. Thanks for sharing Thai.

[myjohnson]

11) http://www.vub.ac.be/phd/verdediging...200711071a.pdf

Nutrient dynamics and production in the northern Lake Tanganyika

Good read if you are intersted in: "The main objective of this study was to describe and understand the seasonal variations of carbon and nutrient utilization by planktonic organisms in the northern Lake Tanganyika."

really short read.....really more about the chemical make up of lake tang.

Which may or may not apply to tropheus keeping. I personally want my tank to be as close to lake conditions as possible and it really does depend on which sp./variant you have.

It's a short and simple read.....not bad at all really.

12) http://repository.kulib.kyoto-u.ac.jp/dspa.../1/ASM_9_65.pdf

COMPARATIVE OSTEOLOGY OF THE SUSPENSORIAL COMPLEX OF ALGAL-FEEDING CICHLIDS (PISCES, TELEOSTEI) FROM LAKE TANGANYIKA

Above is a link....it's an old article but a decent read.

Topic: "The comparative osteology of the suspensorial complex in 20 species of epilithic
algal feeders from Lake Tanganyika was studied as a means of obtaining fundamental
data for understanding the adaptive radiation in feeding habits of cichlid fishes in the East
African lakes."

Comments: cool comparison between petros, simos, and others jaw structure.

Sorry it's a little old, but any study on petro is hard to find.

13) http://www.aslo.org/lo/toc/vol_26/issue_3/0532.pdf

Primary production and rates of algal growth in Lake Tanganyika

Above is a pdf I had for a while. I got into connect with some friends studying on the lake and they gave me an internet link to it.

It you want to know what's really going on in the lake with seasonal algae growth....it's worth the read.


14) http://www.uni-graz.at/zoowww/person...l/Tropheus.pdf

"Phylogeographic history of the genus Tropheus, a lineage of rock-dwelling cichlid fishes endemic to Lake Tanganyika"

15) http://www.biomedcentral.com/1471-2148/7/137
"Nuclear and mitochondrial data reveal different evolutionary processes in the Lake Tanganyika cichlid genus tropheus."