absence of plates (external flattened armoured structures) on the ventral region
absence of plates on the edge of the catfish snout
presence of interopercular odontodes (barbs behind the gill covers), a characteristic shared with another species - C. platyrhynchus
absence of fleshy tentacles on the snout, differentiating this genus from Ancistrus spp.
C. microps has a few sexually dimorphic characteristics, namely the head of females is smaller and narrower than that of males, while broader ventrally; in addition, the pelvic fins of the male are much larger, evidently so that, when inverted over a cluster of fish-eggs, they can protect sperm from being carried away in the current and thus aid fertilisation.[2] The fish is 8.9 centimetres (3.5 in) long.[3]
Natural historyedit
C. microps, which has previously been recorded in rivers originating from the Andes mountains, clings to rocks. The fish are primarily algae-feeders.[4]
Recently, the fish was recorded underground from limestone caves containing streams, near Tena, Napo Province, Ecuador. The fish was observed and filmed climbing the cave wall reaching up to 10 feet (3.0 m) above the water level.[5]
C. microps is unique in that this fish can "shimmy up cave walls where water streamed down from tiny underground tributaries".[5] The fish is able to crawl up walls, having an angle of up to 75°, where a thin film of flowing water occurs, with the help of morphological modifications to the mouth, fins and skin.[5] It has been surmised that this species has begun evolving for a life underground.[5]
Referencesedit
Wikimedia Commons has media related to Chaetostoma microps.
^Owen, James (6 May 2015). . news.nationalgeographic.com. Archived from the original on May 7, 2015. Retrieved 11 May 2015.
^ abc"Chaetostoma microps". PlanetCatfish.com. 2 January 2015. Retrieved 13 May 2015.
^Fisch-Muller, S. (2003). "Loricariidae-Ancistrinae (Armored catfishes)". In Reis, R.E.; Kullander, S.O.; Ferraris, C.J. Jr. (eds.). Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. pp. 373–400. as reported in Froese, Rainer; Pauly, Daniel (eds.) (2015). "Chaetostoma microps" in FishBase. February 2015 version.
^ abHoese, G.; Addison, A.; Toulkeridis, T.; Toomey, R. III (16 April 2015). "Observation of the Catfish Chaetostoma microps Climbing in a Cave in Tena, Ecuador". Subterranean Biology. 15: 29–35. doi:10.3897/subtbiol.15.4809. Retrieved 13 May 2015.
^ abcdOwen, James (6 May 2015). . National Geographic. Archived from the original on May 7, 2015. Retrieved 13 May 2015.
April 18, 2024
chaetostoma, microps, species, suckermouth, armored, catfish, native, ecuador, fish, been, filmed, climbing, cave, walls, scientific, classificationdomain, eukaryotakingdom, animaliaphylum, chordataclass, actinopterygiiorder, siluriformesfamily, loricariidaege. Chaetostoma microps is a species of suckermouth armored catfish native to Ecuador The fish has been filmed climbing cave walls 1 Chaetostoma micropsScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ActinopterygiiOrder SiluriformesFamily LoricariidaeGenus ChaetostomaSpecies C micropsBinomial nameChaetostoma micropsGunther 1864 Contents 1 Discovery 2 Description 3 Natural history 4 ReferencesDiscovery editThe species was first described by Albert Gunther in 1864 The type specimen is from the Andes of western Ecuador 2 Description edit nbsp C microps on flowstone wall in sheet flow The fish is facing up on a 75 slopeC microps has the following characteristics 2 absence of plates external flattened armoured structures on the ventral region absence of plates on the edge of the catfish snout presence of interopercular odontodes barbs behind the gill covers a characteristic shared with another species C platyrhynchus absence of fleshy tentacles on the snout differentiating this genus from Ancistrus spp C microps has a few sexually dimorphic characteristics namely the head of females is smaller and narrower than that of males while broader ventrally in addition the pelvic fins of the male are much larger evidently so that when inverted over a cluster of fish eggs they can protect sperm from being carried away in the current and thus aid fertilisation 2 The fish is 8 9 centimetres 3 5 in long 3 Natural history editC microps which has previously been recorded in rivers originating from the Andes mountains clings to rocks The fish are primarily algae feeders 4 Recently the fish was recorded underground from limestone caves containing streams near Tena Napo Province Ecuador The fish was observed and filmed climbing the cave wall reaching up to 10 feet 3 0 m above the water level 5 Climbing fish are known in epigean astroblepids and loricariids A fish that climbs waterfalls and rapids Cryptotora thamicola has been recorded from Thailand 4 C microps is unique in that this fish can shimmy up cave walls where water streamed down from tiny underground tributaries 5 The fish is able to crawl up walls having an angle of up to 75 where a thin film of flowing water occurs with the help of morphological modifications to the mouth fins and skin 5 It has been surmised that this species has begun evolving for a life underground 5 References edit nbsp Wikimedia Commons has media related to Chaetostoma microps Owen James 6 May 2015 Watch Cave Climbing Fish Found Is It Evolution in Action news nationalgeographic com Archived from the original on May 7 2015 Retrieved 11 May 2015 a b c Chaetostoma microps PlanetCatfish com 2 January 2015 Retrieved 13 May 2015 Fisch Muller S 2003 Loricariidae Ancistrinae Armored catfishes In Reis R E Kullander S O Ferraris C J Jr eds Checklist of the Freshwater Fishes of South and Central America Porto Alegre EDIPUCRS Brasil pp 373 400 as reported in Froese Rainer Pauly Daniel eds 2015 Chaetostoma microps in FishBase February 2015 version a b Hoese G Addison A Toulkeridis T Toomey R III 16 April 2015 Observation of the Catfish Chaetostoma microps Climbing in a Cave in Tena Ecuador Subterranean Biology 15 29 35 doi 10 3897 subtbiol 15 4809 Retrieved 13 May 2015 a b c d Owen James 6 May 2015 Watch Cave Climbing Fish Found Is It Evolution in Action National Geographic Archived from the original on May 7 2015 Retrieved 13 May 2015 Retrieved from https en wikipedia org w index php title Chaetostoma microps amp oldid 1219134319, wikipedia, wiki, book, books, library,
