Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Egg-capsule deposition of the marine gastropod Olivella minuta: the importance of an interspecific relationship with the soft-bottom bivalve Tivela mactroides

Full text
Corte, Guilherme N. [1, 2] ; Yokoyama, Leonardo Q. [2, 3] ; Denadai, Marcia R. [2] ; Bessa, Eduardo [4] ; Salles, Maria Claudia Z. [5] ; Turra, Alexander [2]
Total Authors: 6
[1] Univ Estadual Campinas, Inst Biol, Dept Biol Anim, BR-13083970 Campinas, SP - Brazil
[2] Univ Sao Paulo, Inst Oceanog, Dept Oceanog Biol, Lab Manejo Ecol & Conservacao Marinha, BR-05508120 Sao Paulo, SP - Brazil
[3] Univ Fed Sao Paulo, Dept Ciencias Mar, Lab Ecol & Gestao Costeira, BR-11070100 Santos, SP - Brazil
[4] Univ Brasilia, Programa Posgrad Ecol, BR-73345010 Brasilia, DF - Brazil
[5] Rede Meu Colegio, Dept Ciencias Biol, BR-13140000 Paulinia, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Journal of Molluscan Studies; v. 85, n. 1, p. 126-132, FEB 2019.
Web of Science Citations: 1

In marine soft-bottom environments, the availability of hard substrates may strongly influence the reproduction of benthic species. Most marine gastropods attach egg capsules to any hard object lying on the sediment surface, but some species may choose to deposit egg capsules on living organisms. This study reports deposition of egg capsules on shells of living Tivela mactroides. We collected T. mactroides individuals in six sampling sites along a morphodynamic continuum to investigate which species was using T. mactroides as oviposition substrate as well as looking at the pattern of capsule deposition on the shells. More than 90% of T. mactroides individuals had one to 55 egg capsules on their shells, all belonging to Olivella minutathe first record of this interspecific relationship. Most egg capsules were concentrated closer to the umbo of the bivalve (dorsal region) and there was no evident relationship between the number of egg capsules and length of T. mactroides. The number of egg capsules strongly decreased in more reflective beach conditions; however, the pattern of egg deposition on the shells was roughly similar in all sites. These findings increase our understanding of the reproductive biology of O. minuta and demonstrate the ecological importance of T. mactroides; they also emphasize that biological interactions and density-dependent relationships may influence the community ecology of soft-bottom habitats. (AU)

FAPESP's process: 17/17071-9 - Preserving sandy beaches: biodiversity, goods and services, and impacts on a neglected ecosystem
Grantee:Guilherme Nascimento Corte
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 09/15893-5 - Interpopulation variability in sandy beaches: case study about the zonation, reproduction, and growth of Olivella minuta (Gastropoda, Olividae)
Grantee:Leonardo Querobim Yokoyama
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 98/07090-3 - Benthic marine biodiversity in the state of São Paulo
Grantee:Antonia Cecília Zacagnini Amaral
Support type: BIOTA-FAPESP Program - Thematic Grants