Canals and pores of the cephalic laterosensory system of Characiformes (Ostariophysi): anatomy and phylogenetic information.

• Grant number: 12/22685-2
• Support Opportunities: Scholarships in Brazil - Master
• Start date: June 01, 2013
• End date: September 30, 2014
• Field of knowledge: Biological Sciences - Zoology - Morphology of Recent Groups
• Principal Investigator: Flávio Alicino Bockmann
• Grantee: Murilo Nogueira de Lima Pastana
• Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
• Associated scholarship(s): 13/26548-2 - Pores of the cephalic laterosensory system of Ostariophysi (Teleostei): an in-group and out-group analysis, BE.EP.MS

Abstract

The laterosensory sistem of fishes is responsible, among other functions, for the perception of water movement and vibration. The functional unit of this system is the neuromast, which can be present on the skin surface or in grooves on it, or also in canals that are distributed along dermic bones, reaching the skin surface by pores. The ossification pattern related to the laterosensory canals is conserved among distinct fish lineages so that this morphological complex may represent a rich source of phylogenetic information. This system has been extensively used in cladistic analysis on several ostariophysans, such as in Siluriformes. However, the laterosensory system of Characiformes, one of the most diverse order of teleosts and also a member of the superorder Ostariophysi, has not been described in details yet, and its phylogenetic implications are poorly investigated. The present study mainly aims to carry out an exploratory analysis of the homology of the various component elements of the laterosensory system in Characiformes, namely: 1) survey information about the branching and ossification patterns of the sensory cephalic canals among its main lineages; 2) map the ending points of these branches, i.e. the sensory pores, which open on skin surface; and 3) identify the principal nerve branches associated with this system. For that, cleared and stained representatives of families of the order Characiformes will be analysed, and illustrations and descriptions of the laterosensory system for each one will be prepared. A basal characiform will be dissected to identify the sensory system innervation pattern. It is expected that these data may help to elucidate the phylogenetic relationships of these groups, as well as in understanding of evolution of this morphological complex.

Scientific publications

(7)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PAIVA DAGOSTA, FERNANDO CESAR; DE LIMA PASTANA, MURILO NOGUEIRA. New species of Creagrutus Gunther (Characiformes: Characidae) from rio Tapajos basin, Brazil, with comments on its phylogenetic position. Zootaxa, v. 3765, n. 6, p. 571-582, FEB 21 2014. (12/22685-2, 11/50282-7, 09/54931-0, 11/23419-1)

MURILO N. L. PASTANA; FERNANDO C. P. DAGOSTA. Moenkhausia rubra, a new species from rio Juruena, upper rio Tapajós basin, Brazil (Characiformes: Characidae). Neotropical Ichthyology, v. 12, n. 2, p. 389-396, 2014-06-00. (12/22685-2)

PASTANA, M. N. L.; DAGOSTA, F. C. P.; ESGUICERO, A. L. H.. A new sexually dichromatic miniature Hyphessobrycon (Teleostei: Characiformes: Characidae) from the Rio Formiga, upper Rio Juruena basin, Mato Grosso, Brazil, with a review of sexual dichromatism in Characiformes. Journal of Fish Biology, v. 91, n. 5, p. 1301-1318, NOV 2017. (12/22685-2, 13/26548-2, 16/07246-3, 11/23419-1)

ABRAHAO, VITOR PIMENTA; PASTANA, MURILO; MARINHO, MANOELA. On a remarkable sexual dimorphic trait in the Characiformes related to the olfactory organ and description of a new miniature species of Tyttobrycon Gery (Characiformes: Characidae). PLoS One, v. 14, n. 12, DEC 18 2019. (14/11397-1, 17/17957-7, 15/26804-4, 12/22685-2, 17/09321-5, 16/19075-9)

SLOBODIAN, VERONICA; PASTANA, MURILO N. L.. Description of a new Pimelodella (Siluriformes: Heptapteridae) species with a discussion on the upper pectoral girdle homology of Siluriformes. Journal of Fish Biology, v. 93, n. 5, p. 901-916, NOV 2018. (11/50282-7, 15/26804-4, 12/22685-2, 16/19075-9, 13/18623-4, 16/01073-0, 13/26548-2)

PASTANA, MURILO N. L.; OHARA, WILLIAN M.. A new species of Hyphessobrycon Durbin (Characiformes: Characidae) from rio Aripuana, rio Madeira basin, Brazil. Zootaxa, v. 4161, n. 3, p. 386-398, SEP 6 2016. (11/50282-7, 13/22473-8, 12/22685-2)

PASTANA, MURILO N. L.; BOCKMANN, FLAVIO A.; DATOVO, ALESSIO. The cephalic lateral-line system of Characiformes (Teleostei: Ostariophysi): anatomy and phylogenetic implications. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, v. 189, n. 1, p. 1-46, MAY 2020. (09/54931-0, 12/22685-2, 16/19075-9)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

PASTANA, Murilo Nogueira de Lima. Canals and pores of the cephalic laterosensory system of Characiformes (Ostariophysi): anatomy and its phylogenetic information.. 2014. Master's Dissertation - Universidade de São Paulo (USP). Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (PCARP/BC) Ribeirão Preto.