Population structure, growth and reproductive biology of the gorgonocephalid brittlestar Asteroporpa annulata

Academic Article

Abstract

  • Asteroporpa annulata were sampled in 90m of water on a rhodolith substrate 48km SE of Pensacola Bay, Florida in the Gulf of Mexico. Pooled population size frequency analysis revealed a size distribution skewed towards smaller body sizes. Allometric growth over the size range of individuals collected was hyperbolic, with a quadratic function describing the relationship between disc diameter and wet weight. Sex ratio was 2:1 (female:male). Data suggested an annual cycle of reproduction, with a breeding season occurring in the fall and winter. This species probably has a broadcasting mode of reproduction, with abbreviated development. -from Authors
  • Published In

    Author List

  • McClintock JB; Hopkins T; Marion K; Watts S; Schinner G
  • Start Page

  • 925
  • End Page

  • 936
  • Volume

  • 52
  • Issue

  • 3