Lesson plan
Aspredo
Aspredo aspredo is the only species of banjo catfish (order Siluriformes) in the genus Aspredo. This species originates from the lower portions of rivers from Venezuela to northern Brazil. It occurs in the Orinoco delta, through the Guianas, to the Amazon River to the island of Trinidad. A. aspredo is the largest species of aspredinid, reaching about 38.3 centimetres (15.1 in) SL. The maxillary barbels are attached to the head, the colouration is uniform without any pattern of dark saddles, and the unculiferous tubercles present in other aspredinids are highly reduced. A. aspredo is a benthic fish that is found on sandy-muddy bottoms in turbid waters in coastal river mouths where it can be found in brackish waters. However, it appears to enter further into fresh water than its relatives. This species practices an unusual method of incubation of the eggs, attaching them to the underside of the female who then carries them around. Reproduction is believed to occur in the early part of the year.
Article summary
Aspredo aspredo is the only species of banjo catfish (order Siluriformes) in the genus Aspredo. This species originates from the lower portions of rivers from Venezuela to northern Brazil. It occurs in the Orinoco delta, through the Guianas, to the Amazon River to the island of Trinidad. A. aspredo is the largest species of aspredinid, reaching about 38.3 centimetres (15.1 in) SL. The maxillary barbels are attached to the head, the colouration is uniform without any pattern of dark saddles, and the unculiferous tubercles present in other aspredinids are highly reduced. A. aspredo is a benthic fish that is found on sandy-muddy bottoms in turbid waters in coastal river mouths where it can be found in brackish waters. However, it appears to enter further into fresh water than its relatives. This species practices an unusual method of incubation of the eggs, attaching them to the underside of the female who then carries them around. Reproduction is believed to occur in the early part of the year.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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