All Questions
Tagged with limnology ichthyology
11 questions
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Fresh Water Fish Identification
A couple of days ago I just adopted a group of 7 fishes, 2 inches long each, orange-pinkish color, a black dot before the tail, very fast, active and peacefull. Looks like a kind of tetra fish. Anyone?...
- 195
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Are there taxonomic keys for members of the family poeciliidae in America?
I wish to know what are the taxonomic aspects necessary for the identification of certain species of poecilids, specifically what is the role in the counting of rays and spines and also the ...
- 21
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Are there adaptations in tropical fish to compensate for less oxygen in water?
Warmer water means that the amount of gases- especially oxygen- dissolved in it reduces, since solubility of gases in a solution in most cases decrease with an increase in temperature.
I'm interested ...
- 215
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How many Watt-hours can an electric eel produce in a day?
Electric eels are cited as being about to produce about 860 watts of energy. But I haven't been able to find information on how long they can sustain their charge.
https://www.youtube.com/watch?v=...
- 283
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How do fish persist in the upper parts of mountainous rivers with waterfalls?
I was recently traveling in a remote mountain region and hiking alongside a very small river.
What caught my attention was the fish in the small ponds under the waterfalls.
These ponds were just a ...
- 119
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Can an Ichthyologist identify this Canadian freshwater fish?
This will be very simple for a lot of you! But I been getting mixed answers about his catch. Is this a chinook salmon or brown spotted trout? Caught in Angus, Ontario, Canada. (Hwy 90 Bridge)
I ...
- 21
3
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What kind of fish is this? Spotted or largemouth?
I don't know if this is a weird looking largemouth bass or a spotted bass. It was caught in southern Oklahoma. Please help! Thanks.
8
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What kind of fish is this?
What sort of fish is the big one in this picture? I saw it in an aquarium so I don't really know anything about its habitat.
- 183
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Why is flash light harmful to what aquatic life forms?
When visiting an aquarium, it's often not allowed to take photographs with a flashlight on. It is said that the flash light with very high intensity is harmful to the displayed life forms.
I respect ...
