Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater & Reef - Getting Started
Click Here to Login

Join Aquarium Advice Today
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
Old 11-19-2003, 12:25 PM   #1
Aquarium Advice Activist
Join Date: Sep 2003
Location: Las Vegas (...or lost wages)
Posts: 200
Send a message via AIM to TriggerHappy Send a message via MSN to TriggerHappy Send a message via Yahoo to TriggerHappy
There's hope yet

Happy Birthday!!


--TriggerHappy --2003

Tank Setup
Setup 9/11/2003
Niger Trigger
Maroon Clown
BiColor Angel
P-H 8.2 Ammonia 0 Nitrite 0 Nitrate 10-15ppm
Crushed Coral 60lbs
1 MaxiJet 1200 PH, 1 ZooMed PH, XP2 Filstar

"I feel sorry for people who don't drink. They wake up in the morning and that's the best they're going to feel all day."
Dean Martin.
TriggerHappy is offline   Reply With Quote
Old 11-19-2003, 12:50 PM   #2
Aquarium Advice Activist
Join Date: May 2003
Location: Chicago
Posts: 159

Common name: Australian lungfish; Ceratodus; Queensland lungfish
Scientific name: Neoceratodus forsteri
Distribution: Australia

What are lungfish?

There are two known families of the amazing lungfish in the Dipnoi order. These incredible fish have numerous extinct species with only six species known today. The reason that the lungfish is such an interesting fish is because all six species are known to breathe air. Some do this even though they also use gills while others have developed a type of lungs that allows them to breath air which is gulped from the surface of the water. Of interest is the fact that these lung type organs are much like those of the ancient amphibians. The lungfish has a history that dates back to the Lower Devonian which is millions of years ago. Most of the species found today live in lakes or rivers in Australia, South America and Africa. Of the two families, which are Lepidosirenidae and Ceratodidae, the South American lungfish and African lungfish are in the Lepidosirenidae family. These fish have slender, long eel-like bodies that are equipped with two lungs. They sense their surroundings by using their fins and in the South American species tend to grow to lengths of over three feet. Of the African lung fish there are some species that reach sizes of over 6 feet long.

Besides their ability to breathe air, the lungfish has addition distinguishing characteristics that are fascinating. During the spawning season both species from the Lepidosirenidae family are known to very carefully construct nest for their young. After the eggs are deposited by the females the males watch over the nest, protecting them fiercely until the young have hatched. The young in this species have gills when they first appear but as they mature the gills tend to disappear. Adults take in air by swimming to the surface of the water and filling their lungs before moving back under water. Unlike the South American and African lungfish, the Australian lungfish do not build nest during the spawning period. Once mating has occurred the females will lay her eggs among the vegetation at the bottom of her habitat to hatch. This intriguing fish has only one lung but is considered to have a much older history than the African or South American species. Some studies suggest that the Australian lung fish genus Neoceratodus has gone through no changes in the last 100 million years. When taking in air the Australian lungfish reportedly swims to the waters surface displaying its nose above the surface to fill its lung. As it takes in air the mouth remains closed with the air passing through an opening from the nose to the mouth. During the majority of the season the Australian lungfish uses its gills to take oxygen from the water, only breathing air when the water levels lower.

Another of the very interesting characteristics of the lungfish in the Lepidosirenidae family is their ability to survive in little or no water. When the heat in South America dries up the water supply this species will dig into the mud at the bottom of their habitat and remain there with no activity until the waters rise. The African lungfishes also dig out holes in the mud but cover themselves completely with a secretion that is given off by their bodies. As the water level lowers the secretions on their bodies will dry to form a kind of leathery cocoon that encases them until sufficient water has returned. During this waterless type of hibernation, both species remain dormant until the rains come to release them from their shells. The Australian lungfish will first survive in whatever water is available as the dry season commences. As other fish die around it from lack of oxygen in the diminished water supply this fish begins to take its air from the atmosphere exclusively. These amazing fish have been found during a drought surviving in small puddles of water by surfacing for air when necessary. Studies have shown that during these dormant periods the metabolism of the lungfish is greatly diminished causing them to need very little to survive with the exception of oxygen. Even more incredible are the studies that have shown that some species of the lungfish can survive around two years under these conditions.
Noah was a drunk and looked what he accomplished, no one's asking you to build an ark...
Sneaker is offline   Reply With Quote

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Last Hope Curious1 Freshwater & Brackish - General Discussion 10 10-30-2009 08:57 PM
I hope its over black hills tj Freshwater & Brackish - General Discussion 2 04-22-2007 01:23 PM
just so i hope i've got it right before i do anything Pinky Freshwater & Brackish - Planted Tanks 11 05-21-2006 04:26 PM
I really hope... Edmonton Eskimo Saltwater Reef Aquaria 7 10-26-2004 01:49 AM

» Photo Contest Winners

All times are GMT -4. The time now is 08:55 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.