2018
DOI: 10.1002/ar.23986
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Structure and Function of the Armored Keel in Piranhas, Pacus, and their Allies

Abstract: The serrasalmids: piranhas, pacus, and their relatives, are ubiquitous Neotropical fishes with diverse diets, ecologies, and behaviors. Serrasalmids have a bony, serrated keel which lines the underbellies of these fishes, the structure for which the family is named. We examined the diversity and structure of the keel in piranhas and allies using micro-computed tomography scanning in over 30 species of serrasalmids, a third of the species richness for the family, and for 95 total characiform specimens. The keel… Show more

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Cited by 14 publications
(12 citation statements)
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“…Up to half of juvenile humans experience and survive bone fracture (Jenkins et al 2018). Wild animals such as hawks, bottle-nosed dolphins, urban foxes, and serrasalmid fish (the group including piranhas) have high rates of fracture incidence and survival (de Smet 1977; Harris 1978; Roth et al 2002; Kolmann et al 2018). In human and veterinary medicine, fracture repair may be enhanced by supporting bones with splints, casts, slings, surgical implants, and medication; wild animals are not afforded such care and must heal by themselves if they are to regain competitive function.…”
Section: Introductionmentioning
confidence: 99%
“…Up to half of juvenile humans experience and survive bone fracture (Jenkins et al 2018). Wild animals such as hawks, bottle-nosed dolphins, urban foxes, and serrasalmid fish (the group including piranhas) have high rates of fracture incidence and survival (de Smet 1977; Harris 1978; Roth et al 2002; Kolmann et al 2018). In human and veterinary medicine, fracture repair may be enhanced by supporting bones with splints, casts, slings, surgical implants, and medication; wild animals are not afforded such care and must heal by themselves if they are to regain competitive function.…”
Section: Introductionmentioning
confidence: 99%
“…Momen Dipol (11) Nama IUPAC (28) Trihidrooksidoboron Asam Borat (15) Nama Lain (10) Sumber (26) Struktur (12) Nama (9) Kegunaan (14) Sifat (1) Asam Boraks (4) Sasolit Asam Ortoborat (27) Borofaks…”
Section: Analisis Gapunclassified
“…Kelarutan dalam pelarut lain (19) Warna (8) Wujud (12) Bentuk Molekul (18) Asam metaborat akan mencair jika diberikan pemanasan sekitar 236 °C, dan ketika dipanaskan pada suhu (101) di atas 300 °C dia akan kehilangan air (102) (103) larutan (solutions) (104) asam borat cair. Spektroskopi Ramandi pada larutan (201)(202)(203)(204)(205) basa kuat menerangkan bahwa terdapat ion B(OH) −4 , sehingga berdasarkan beberapa penelitian disimpulkan bahwa keasaman secara khusus terjadi karena abstraksi OHdari H 2 O (39) : B(OH) 3 + H 2 O B(OH) −4 + H + (K = 7.3x10 −10 ; pK = 9.14) atau lebih jelasnya dinyatakan dalam larutan:…”
Section: Analisis Gapunclassified
“…Despite their keystone status and commercial significance throughout Amazonia, the ecologies of piranhas and pacus are poorly understood and often misrepresented. The ferocious reputation of piranhas stems largely from accounts of their feeding on corpses (Sazima & Guimarães, 1987) or nipping bathers, the latter attributed to the protective nature of piranhas defending nests (Haddad & Sazima, 2003, 2010; but see Kolmann et al, 2018b). We have only recently understood the role that pacus play in structuring forests, as large frugivores that can disperse seeds over great distances (ichthyochory) (Correa et al, 2015, 2016).…”
Section: Introductionmentioning
confidence: 99%