Arapaima gigas. Photo by Sergio Ricardo de Oliveira
The Amazon’s largest fish, Arapaima gigas, is facing extinction. Over-fishing has resulted in dwindling numbers of the unusual, air-breathing fish. Reaching sizes of 10 feet, the fish is a prized catch for fishermen. The arapaima fish has in addition to gills, a primitive lung that allows it to breath oxygen. It is this ability which has enabled the arapaima to survive in oxygen poor waters. Unfortunately, coming up for air makes it easy prey for fisherman. Efforts have been made to protect the arapaima and they have met with success. As the numbers of the various species of arapaima dwindle, fishermen have resorted for different fishing methods, including gill nets to catch smaller fish.
Almost 80 minutes of video showing fish from the Morichal Largo River both in the aquarium and in the wild.
All you South American cichlid fans should really enjoy watching this documentary. The Morichal Largo River is located in Venezuela and is part of the Orinoco River basin. The video contains in the wild footage of various local cichlid species including Cichlasoma bimaculatum and Apistogramma guttata. A good amount of time is devoted to parents and the care they offer their fry. Even hobbyist who don’t keep New World species will enjoy the great footage.
Cichlasoma bimaculatum. Florida Fish and Wildlife Conservation Commission Archive, Bugwood.org. CC 3.0
Iranocichla hormuzensis is the only species of its genus and the only cichlid found in Iran. Finding them on price lists is almost impossible although occasionally some hobbyist do have them for sale. If you are lucky enough to locate this rare species, it is advisable that you find out as much as you can about them. Hobbyist, photographer and publisher Dave Hansen Esq. has written an article about his experiences with I. hormuzensis. Having been one of the few hobbyists in the U.S. to keep this rare species, Hansen had to do a lot of experimenting while raising and attempting to breed them.
I. hormuzensis has proven to be difficult to breed and the wild sources for this fish are diminishing, not to mention getting to them is difficult. If you would like to read more about his unusual cichlid or think that you might want to try and obtain some, make sure to check out the Iranocichla hormuzensis library article. Lots of photos too.
Iranocichla hormuzensis close up. Photo by Robert De Leon
Nile Perch in Lake Victoria. Courtesy photo from East Africa Business Week
Originally introduced into Lake Victoria as a sport and commercial fish, the Nile Perch appears to be facing the same fate as the native species it displaced. Since its introduction in the 1950s, the large, predatory fish contributed to the extinction of over 200 native cichlid species. It also grew to became a source of food for millions of people in the region and has also become an export commodity. However, its popularity has led to illegal overfishing and its numbers are rapidly declining in Lake Victoria.
Although the declining numbers of Nile Perch might seem like a good sign for the remaining native cichlid species, the future of all fish in Lake Victoria is far from rosy. As stocks of Perch decline, more fishing, especially the illegal kind, will shift to smaller and smaller fish. Cichlid species will increasingly become caught in illegal nets. The Nile Perch is also a fish that is very sensitive to pollution which has contributed to its decline. Increased levels of pollution and agricultural runoff have also had a negative effect on cichlids and their remaining habitats. As the lake starts to provide less food, the demand for more agricultural substitutes will increased, leading to more pollution. For more information on the this topic, visit East Africa Bussiness Week.
A new photography article helps hobbyists understand the basic elements of photography for getting great fish pictures. Frank Mueller explains how aperture, shutter speed and sensor sensitivity work together in his article Getting Sharp Aquarium Photos By Understanding Exposure. Many people take advantage of the modern camera’s ability to handle proper exposure. However, the camera’s decisions aren’t always the best. With an understanding of what the different controls on the camera do, it won’t be long before you can start taking control of your photographs.
USA Today is running a reader poll for the 10 best North American aquariums. The nominated aquariums are up and ready for your vote. Several of the nominations have been profiled previously profiled on this blog. Chances are you haven’t visited most of these aquariums and undoubtedly most people will vote for their local aquarium. Regardless, this list serves to help identify some of the best aquariums to visit in North America. If you live close by make sure to support your local aquarium. Money from admission fees often goes to conservation programs. If you are vacationing with the family, aquariums make a great, relaxing and cool place to visit for the entire family. Even if you are traveling on business, an aquarium is a great place to relax for a few hours when away from your own tanks and offers great photography opportunities.
To see the list and vote on the best North American aquariums, visit 10Best.com.
A recent addition to the Cichlid-Forum library is a species article for ‘Haplochromis cyaneus. This species is from the shallow waters around Makobe Island in Lake Victoria. Like so many species of cichlids from Lake Victoria, H. cyaneus is endangered due to pollution, habitat destruction and predation from non-native species. This fish gets its name from the Greek word for blue. The article not only goes into detail on the physical characteristics of the species, but also details the personal experiences the author had in keeping and breeding ‘Haplochromis’ cyaneus. The species article simply titled ‘Haplochromis’ cyaneus can be found in the library section.
A special thanks to Greg Steeves for allowing us to use his article and pictures.
A great video showing a pair of Stomatepia pindu spawning in an aquarium.
This rare cichlid is native to the crater lake Barombi Mbo in West Cameroon. At one time it was impossible to find in the hobby, but over the years it has become increasingly available. S. pindu can only be found in Barombi Mbo and is listed as critically endangered. Its native home is threatened by oil exploration, pollution and natural CO2 releases from the lake bottom.
Stomatepia pindu males and females often display all black coloration as pictured below. If you would like learn more about S. pindu and see more great pictures, make sure to read the Species Article.
A book review of Ad Konings’ Tropheus in their Natural Habitat has been added to the library. A special thanks to Pam Chin for putting the review together.
Pam is one of the founding members of “Babes In The Cichlid Hobby”, avid cichlid keeper, and writer. Her articles can be seen in the Buntbarsche Bulletin and Cichlid News. Ad Konings is one of the best known names to anyone keeping cichlids. Ad has written many books on cichlids and is a frequent guest speaker at cichlid events around the world. His research on cichlids and conservation work has been the subject of several blogs on Cichlid-Forum.
Take a few minutes to read Pam’s book review on Tropheus in their Natural Habitat and don’t hesitate to order the book in hardback or digital format. Ad’s books and photography should be on every cichlid-keepers shelf.
An informative article written by Frank Mueller (fmueller) addresses many of the questions hobbyists have about which silicone products can be safely used in an aquarium. At one time the GE brand was the go-to product for sealing an aquarium. That was until the “Aquarium Safe” wording disappeared from their products. What changed and what products are safe to use? What is the best deal for the budget conscious do-it-yourselfer?