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April 8, 2014 Volume 58, Issue 8 April 8, 2014 London Aquaria Society Brian Glazier www.londonaquariasociety.com will be talking about how to catch fish in Florida and how to take care of live foods for our fish. Bottom Feeders sarily detritivores, although this is beneficial as their food is there are many that are. Some often going to be below them From Wikipedia, the free encyclopedia bottom feeders graze along the in the substrate. Those bottom http://en.wikipedia.org/wiki/ bottom, feeding on plant mate- feeders with upward-pointing Bottom_feeder rial. Other bottom feeders may mouths, such as stargazers, feed on other bottom feeders, tend to seize swimming prey. A bottom feeder is usu- and thus are carnivores. Some flatfish such as halibut ally an aquatic animal that feeds Many bottom feeders are actually have a "migrating" eye on or near the bottom of a also capable of burying them- that moves to the upward- body of water. The body of selves. A variety of invertebrates facing side of the fish as it ages. water could be the ocean, a are able to bury themselves, lake, a river, or an aquarium. Aquarium care[edit] such as bristleworms, sea cu- Bottom feeder is a general term In the aquarium, bot- cumbers, and snails. Many ver- which is used particularly in the tom feeders are popular as it is tebrate bottom feeders may context of aquariums. Biologists perceived that they will "clean bury themselves, such as flatfish often use the term benthos, par- up" the tank. Generally, they or stingray. ticularly for bottom feeding in- are only useful for consuming vertebrates, such as shellfish, In many bottom feeders, the extra (fresh) food left by crabs, crayfish, sea anemones, a mechanism to deal with sub- overfed or clumsy livestock; starfish, snails, bristleworms and strate is often necessary. In the the added biomass of addi- sea cucumbers. However the case of some organisms such as tional organisms means that term benthos includes all sea cucumbers, the sand is usu- the aquarium will likely be aquatic life that lives on or near ally passed through the body. In more dirty. Some specialized the bottom, which means it also fish, sand will be pumped out of bottom feeders are more spe- includes non-animals, such as the mouth through the gill slit. cifically sold as "algae eaters" to plants and algae. In fish, most bottom feeders ex- increase the amount of free Biologists also use specific hibit a flat ventral region so as oxygen and aesthetic appeal of terms that refer to bottom feed- to more easily rest their body a tank. ing fish, such as demersal fish, on the substrate. The groundfish, benthic fish and exception may be benthopelagic fish. Examples of the flatfish, which bottom feeding fish species are laterally de- groups are flatfish (halibut, pressed but lie on flounder, plaice, sole), eels, cod, their sides. Also, haddock, bass, grouper, carp, many exhibit what is bream (snapper) and some spe- termed an "inferior" cies of catfish and shark. mouth, which means that the mouth is Biological trends[edit] pointed downwards; Bottom feeders are not neces- President Ron Bishop….…….........519-457-7907 [email protected] Vice-President April 8, 2014: Brian Glazier will do a talk on collect- Dorothy Reimer……..….519-438-7682 ing tropical fish in Florida. He will also do a talk on [email protected] Treasurer/C.A.R.E.S. Rep. how to take care of live foods for our fish. Annette Bishop…....…....519-457-7907 [email protected] Member at Large Unsung Hero’s of the Derek Tucker……….........519-639-1183 London Aquaria Society [email protected] Jennifer McNaughton…..519-719-8546 Over the years there have been so many Members who [email protected] have given up their time to help run our club, never asking for Nancy Egelton……...…..519-666-2778 anything in return. This year, I hope to mention some of [email protected] those Members to tell them how much we appreciate what Secretary / Correspondence Sharon MacDonald……..519-453-0094 they do for us. sharonmacdonald62@gmailcom Membership Chair Nancy Drummond……...519-644-2753 [email protected] Library James & Margaret Kelly…519-681-0717 B.A.P./H.A.P. Stephen Gregson….…..…519-649-5019 [email protected] Newsletter Editor Table of Contents Lorraine Gregson….........519-649-5019 [email protected] Our Unsung Hero’s………………………..…...…..……………2 Monthly Jar Show President’s Message……….…..……………....……………..…..3 Sarah Lee……...…...…....519-686-3473 [email protected] Evolution in Small Cichlids………………………..……………..4 Advertising Did You Lose a Goldfish……………………………..…………..5 Bob Steele……...…..…...519-473-5648 Green Tiger Barb……………………………………..…………..6 [email protected] Tropical Fish Lifespan….……………………………..………….9 Auction Chair KingTiger Pleco………………………………………..………...10 Jennifer McNaughton…..519-719-8546 [email protected] CAOAC Events Calender………………………………...……...11 C.A.O.A.C. Representative Can You Read This…………………………………………..…..11 Annette Bishop….….......519-457-7907 Novelty Class Winner………..………………………………....12 [email protected] Jar Show Results………………………………………………...12 Website Fish Categories…………………………………………...…..….13 Eric Geissinger……....…...519-672-9168 [email protected] White Cloud Mountain Minnow…………………..……….....14 Junior Members at Large C.A.O.A.C. Report…………...………………….………..…….17 Morgan Jensma Stone Fish………………………………………………………...18 Josh Williams Don’t eat President’s Message too many Easter Eggs. Happy Easter to one and all. The snow is finally melting and now comes the thought of setting up our ponds back to their beauty and sitting in the backyard with the sound of running water. We had fun with ours last year so onward to bigger and better. The guest speaker for April’s meeting will be Brian Glazier who had been in the hobby for many, many years. He will be talking about how to catch fish in Florida and how to take care of live foods for our fish. As always, he will have some cultures for sale. I trust this will be very interesting and I am looking forward to this evening. We had a great showing of London members at the Brantford and Hamilton Show and Auctions. The London Members that showed, won some prizes and did a good job representing our club. The Sarnia Auction is on Saturday April 12th where great bargains can be had. So if you have the time, come and join us. Elections are coming up in June, so if you are interested in getting on the Executive, put your name for- ward. New people are always a wonderful addition to our Executive Meetings, whether they join or not. A special thanks to all that were on the board this past year, you all did first class job. So a special thank you. For March, we had a video about setting up a planted tank. It was very interesting and we all seemed to take some information out of it. The Durham Aquarium Society is putting on the CAOAC Convention this year. They have a great line- up of speakers and lots of interesting things planned for this year. I hope you can all attend this event. For more information, go to the web-site. The monthly Jar Show for April will be on Characids (Tetras, Silver Dollars) and the Open Class for fish and plants. Also, this month we will have the Family Class. The auction will be there as usual. Ron Bishop The London Aquaria Society is a non- profit organization, established in June 1956. Its main objective is to promote interest in breed- ing and raising tropical fish and also to provide a means through which hobbyists may exchange ideas, gain information and display their fish, Please Support sharing them in the public in the London Area. Southwestern Pet Centre 1641 Dundas Street Advertising Rates Business Card……………….……$25.00 London, Ontario 1/4 page…………………….…….$40.00 They support us!!! 1/2 page…………….…………….$75.00 519-451-7279 Full Page…………………..….....$125.00 Rates apply for a year coverage totaling Mon-Wed: 10am-8pm Sat: 10am-6pm 10 issues of our Newsletter. Articles in this pub- lication may be reprinted provided full credit is Thurs 7 Fri: 10am-9pm Sun:10am-5pm given to the Author, the London Aquaria Society and 2 copies of the published bulletin or maga- zine in which the article appears, is to be mailed to: London Aquaria Society P.O. Box 45010, RPO Fairmont London, Ontario N5W 1A3 London Aquaria Society Page 3 Evolution in action as small cichlids lose out to bigger rivals http://www.practicalfishkeeping.co.uk/content.php? Submitted by: Bob & Laurel, London Aquaria Society, March 2014 Competition between large and small versions of the same cichlid in Lake Tanganyika could lead to them becoming two separate species in the future. Telmatochromis temporalis consists of two ecomorphs (local varieties of a species whose appearance is determined by its ecological environment), that strongly differ in body size and the habitat in which they live. Copyright © Lukas Rüber There is a big version of the fish that lives on the rocky shoreline, and a small version (pictured at the top of the page) which is roughly about half the size, that lives and breeds in accumulations of empty snail shells found on sand. According to a study by Dr Martin Genner from Bristol's School of Biological Sciences and colleagues, the bigger fish (pictured above) out- compete the smaller ones, driving them away PET PARADISE from the preferred rocky habitats and into the SUPERSTORE Locally Owned & Operated Since 1995 neighbouring sand, where they find shelter for LONDON’S LARGEST SELECTION OF themselves and their eggs in the snail shells. PUPPIES, KITTENS, REPTILES, FISH, "In effect, big and small fish use different AND SMALL ANIMALS habitats; and because of this habitat segrega- Full line of Pet and Aquarium Supplies tion, fish usually mate with individuals of simi- Knowledgeable Friendly Staff lar size.
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