2010
DOI: 10.1590/s1679-62252010000100022
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Abstract: Monocirrhus polyacanthus (Polycentridae) is a remarkable leaf-mimicking fish that inhabits streams, lake and river margins along the Amazon basin. Despite its obvious predatory habits and being frequently present in the international aquarium trade, little is known about its diet under natural conditions. We examined 35 specimens of leaf fish (28.5-82.0 mm SL), of which 19 had food the stomach. Thirty-three preys were found in the stomach contents, 19 of which were measured (2.0-33.0 mm total length). Up to fi… Show more

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Cited by 15 publications
(9 citation statements)
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“…orbicularis [ 15 , 16 ], and also for other mimetic fish species [ 23 ]. Another leaf-resembling species, the freshwater Amazonian leaf fish Monocirrhus polyacanthus also shows a fast development of unpaired fins [ 46 ], which confer the mimetic capacity in this species [ 23 , 47 , 48 ]. Dorsal and anal fins are furthermore known to be important structures for fish body balance during maneuvering [ 17 , 18 ], and are critical for floating or drifting movements when imitating plant material [ 15 ].…”
Section: Discussionmentioning
confidence: 99%
“…orbicularis [ 15 , 16 ], and also for other mimetic fish species [ 23 ]. Another leaf-resembling species, the freshwater Amazonian leaf fish Monocirrhus polyacanthus also shows a fast development of unpaired fins [ 46 ], which confer the mimetic capacity in this species [ 23 , 47 , 48 ]. Dorsal and anal fins are furthermore known to be important structures for fish body balance during maneuvering [ 17 , 18 ], and are critical for floating or drifting movements when imitating plant material [ 15 ].…”
Section: Discussionmentioning
confidence: 99%
“…The results of the present study indicate that agonistic interactions between individuals of the two ephippid species probably occur in order to avoid aggregations of conspecific individuals, which would increase predation risk by making them more conspicuous to predators. Another well‐known leaf mimic, the Amazonian leaf fish Monocirrhus polyacanthus Heckel 1840 (Barros & Higuchi, 2007; Catarino & Zuanon, 2010), also engages in agonistic displays towards conspecifics although in this case, the cryptic colouration and behaviour are maintained (B. Barros, pers. obs.).…”
Section: Discussionmentioning
confidence: 99%
“…Using prepared diets may lead to malnutrition during larval metamorphosis, influence their survival, and consequently the final biomass, potentially affecting the costs (Schlechtriem et al, 2004). Furthermore, the carnivorous habit of the species (Catarino and Zuanon, 2010) has thus far restricted the use of dry diets in the initial phase of larval rearing.…”
Section: Introductionmentioning
confidence: 99%