| Full text | |
| Author(s): |
Vercoza, Gabriel
[1]
;
Shibuya, Akemi
[2]
;
Bastos, Douglas A.
[3]
;
Zuanon, Jansen
[2]
;
Py-Daniel, Lucia H. Rapp
[4]
Total Authors: 5
|
| Affiliation: | [1] Univ Fed Amazonas, Programa Posgrad Zool, Av Rodrigo Octavio Jordao Ramos 1200, BR-69067005 Manaus, Amazonas - Brazil
[2] Inst Nacl de Pesquisas da Amazonia, Coordenacao Biodiversidade, Av Andre Araujo 2936, BR-69067375 Manaus, Amazonas - Brazil
[3] Inst Nacl de Pesquisas da Amazonia, Programa Posgrad Ciencias Biol BADPI, Av Andre Araujo 2936, BR-69067375 Manaus, Amazonas - Brazil
[4] Inst Nacl de Pesquisas da Amazonia, Programa Colecoes Cient & Biol PCCB, Colecao Peixes, Campus 2, Ave Andre Araujo 2936, BR-69060001 Manaus, Amazonas - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | Neotropical Ichthyology; v. 19, n. 2 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Electrophorus spp. generate high-voltage electric discharges for defense and hunting, and low-voltage electric discharges (as other Gymnotiformes) for electrolocation and communication. Despite intense interest in the unusual e ectrogenic and electroreceptive capacities of electric eels, the other sensory systems of Electrophorus spp. are relatively poorly known. Here we describe the ontogenetic development and organization of the cephalic lateral-line canals in the lowland electric eel, Electrophorus varii. Preserved specimens of larvae, juveniles, and adults were examined to describe the spatial distribution of the canals and pores. Ontogenetic shifts of the cephalic lateral line formation were observed for each canal and support a hypothesis of non-synchronized development. The morphogenesis of cephalic canals in larvae and juveniles begins just before the onset of exogenous feeding. In adults, the cephalic sensory canals are formed separately from the skull and overlay cranial and mandibular bones and muscles. This study provides the first detailed description of the development and organization of the cephalic lateral-line system in Electrophorus varii. (AU) | |
| FAPESP's process: | 16/19075-9 - Diversity and evolution of Gymnotiformes (Teleostei, Ostariophysi) |
| Grantee: | Naercio Aquino Menezes |
| Support Opportunities: | Research Projects - Thematic Grants |