Hydrobiologia

, Volume 787, Issue 1, pp 291–305

Hope springs eternal in the starfish gonad: preserved potential for sexual reproduction in a single-clone population of a fissiparous starfish

  • Alex Garcia-Cisneros
  • Rocío Pérez-Portela
  • Owen S. Wangensteen
  • Marta Campos-Canet
  • Creu Palacín
Primary Research Paper

DOI: 10.1007/s10750-016-2971-8

Cite this article as:
Garcia-Cisneros, A., Pérez-Portela, R., Wangensteen, O.S. et al. Hydrobiologia (2017) 787: 291. doi:10.1007/s10750-016-2971-8

Abstract

Among echinoderms, asexual reproduction by fission occurs in few species. This strategy is considered a temporary response to stressful conditions and usually alternates with sexual reproduction events; thus, monoclonal populations are extremely rare. The occurrence of a single-clone population of the starfish Coscinasterias tenuispina at Llançà (NW Mediterranean) allowed us to study intra-clonal variation of the reproductive cycle during a two-year study. The few developed gonads (all male) were found in winter months, coinciding with the minimum photoperiod (ρ = −0.82; P < 0.001) and lowest temperatures (ρ = −0.75; P < 0.001), only in best-fed individuals, indicating that food availability influences individual ability for gonad development. Fissiparity happened throughout all the sampled period, but its rate increased with warm temperatures (ρ = 0.68; P < 0.0001). In contrast to what has been reported in other species, no correlation between fission rates and population density was found. The population was maintained over time by asexual reproduction and remained monoclonal. Although sexual reproduction has probably not occurred in this all-male population for a long time, the ability to yearly produce mature gonads is retained by some individuals, indicating that potential to reproduce sexually may be preserved, even in the case of strictly asexual populations.

Keywords

Sea star Echinoderm Reproductive cycle Asexual reproduction Fission Photoperiod 

Supplementary material

10750_2016_2971_MOESM1_ESM.tiff (6.2 mb)
Supplementary figure S1. Histograms of size structure of the population per month. Supplementary material 1 (TIFF 6378 kb)
10750_2016_2971_MOESM2_ESM.tiff (6.2 mb)
Supplementary figure S2. Histogram of sizes at Llançà and Canary Islands. Supplementary material 2 (TIFF 6369 kb)
10750_2016_2971_MOESM3_ESM.tiff (6.2 mb)
Supplementary figure S3. Pie charts showing the regeneration state for individuals of both areas. Supplementary material 3 (TIFF 6369 kb)
10750_2016_2971_MOESM4_ESM.tiff (24.9 mb)
Supplementary figure S4. Number of madreporites in individuals of different regeneration state. Supplementary material 4 (TIFF 25468 kb)
10750_2016_2971_MOESM5_ESM.tiff (6.2 mb)
Supplementary figure S5. Histology sections from C. tenuispina male gonads with the three mature stages found. A) Growing, B) premature, and C) mature. S, spermatozoa and NT, nutritive tissue. Supplementary material 5 (TIFF 6378 kb)

Funding information

Funder NameGrant NumberFunding Note
Secretaría de Estado de Investigación, Desarrollo e Innovación
  • BES-2011-044154
  • CTM2010-22218-C02
  • CTM2013-48163

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Alex Garcia-Cisneros
    • 1
  • Rocío Pérez-Portela
    • 2
    • 3
  • Owen S. Wangensteen
    • 1
    • 4
  • Marta Campos-Canet
    • 1
  • Creu Palacín
    • 1
  1. 1.Department of Animal BiologyUniversity of Barcelona and Biodiversity Research Institute (IRBIO)BarcelonaSpain
  2. 2.Center for Advanced Studies of Blanes (CEAB-CSIC)BlanesSpain
  3. 3.Rosenstiel School of Marine & Atmospheric ScienceUniversity of MiamiMiamiUSA
  4. 4.School of Environment and Life Sciences, Ecosystems and Environment Research CentreUniversity of SalfordSalfordUK

Personalised recommendations