Energetic composition, reproductive output, and resource allocation of Antarctic asteroids

Academic Article

Abstract

  • Thirteen species of antarctic asteroids were collected in McMurdo Sound during the austral spring and summer of 1984-1985 and 1985-1986. Variability in the energetic composition of the body wall, pyloric cecum, and gonad was directly related to differences in levels of protein, carbohydrate, lipid and ash in these tissue types. Reproductive output was generally similar between males and females when expressed in gravimetric units. When considered in energy units, females generally had greater reproductive output than males. Reproductive output values of antarctic asteroids were similar to published values for temperate, tropical, and subpolar species. In a given year, the majority of antarctic asteroids have the greatest energy resources in the body wall, a tissue representing a long-term energy investment. Lesser amounts of energy are devoted to annual nutrient storage (pyloric ceca) and reproduction (gonads). © 1989 Springer-Verlag.
  • Published In

  • Polar Biology  Journal
  • Digital Object Identifier (doi)

    Author List

  • McClintock JB
  • Start Page

  • 147
  • End Page

  • 153
  • Volume

  • 9
  • Issue

  • 3