Variation of cnidome (size and type) in Ceriantharia (Cnidaria; Anthozoa)

• Grant number: 18/21566-6
• Support Opportunities: Scholarships abroad - Research Internship - Scientific Initiation
• Start date: August 15, 2019
• End date: October 15, 2019
• Field of knowledge: Biological Sciences - Zoology - Taxonomy of Recent Groups
• Principal Investigator: Sérgio Nascimento Stampar
• Grantee: Fabiola Goes Corrêa
• Supervisor: Fabian H. Acuña
• Host Institution: Faculdade de Ciências e Letras (FCL-ASSIS). Universidade Estadual Paulista (UNESP). Campus de Assis. Assis , SP, Brazil
• Institution abroad: Universidad Nacional de Mar del Plata (UNMdP), Argentina
• Associated to the scholarship: 17/25851-4 - Intraspecific and intraindividual variation of cnidome in Ceriantharia (Cnidaria), BP.IC

Abstract

Cnidocysts are focus of studies in several aspects, specially related to taxonomy. The use of cnidome in taxonomic studies can be controversial, because the consistency of the size as a usable character was not tested in major groups of the cnidarian lineages, however, cnidome is base for several studies to help in species identification and discussion on taxonomic limits. There is a poor knowledge about this approach in several other Anthozoan groups, including the subclass Ceriantharia. The present project aims to verify if the variation of the composition and size of cnidae is consistent in each body region in Ceriantharia in a comparative perspective. The cnidome of Cerianthus sp. 1 will be analyzed, in several body regions, each one divided in three different regions (tip, median portion and base). All statistical tests will be made using R program. A new algorithm to R program for the analysis of statistical data will be proposed and tested. With the results, we can see if there are expressive differences in the individuals of Cerianthus sp. 1 and Ceriantheomorphe brasiliensis. (AU)

Scientific publications

(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)

GARESE, AGUSTIN; CORREA, FABIOLA GOES; ACUNA, FABIAN H.; STAMPAR, SERGIO NASCIMENTO. Cnidom in Ceriantharia (Cnidaria, Anthozoa): new findings in the composition and micrometric variations of cnidocysts. PeerJ, v. 11, p. 22-pg., 2023-06-21. (19/03552-0, 18/21566-6)