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Corpus Systématique Animale

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Chemical defense, biochemical composition and energy content of three shallow-water Antarctic gastropods

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Springer (journals)
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Echinodermes_v2b_0240, Poissons_v2b_003333
  • James B. McClintock 1
  • Marc Slattery 1
  • John Heine 2
  • James Weston 2
  • 1) Department of Biology, University of Alabama at Birmingham, 35294, Birmingham, AL, USA
  • 2) Moss Landing Marine Laboratories, P.O. Box 450, 95039-3304, Moss Landing, CA, USA

Aqueous extracts of the mantle tissues of the opisthobranchs Austrodoris kerguelensis and Tritoniella belli and the lamellarid gastropod Marseniopsis mollis were cytotoxic to the sperm of the antarctic sea urchin Sterechinus neumayeri, and caused behavioral responses (sustained terminal sensory tube-feet retractions) in five species of antarctic sea stars. Pieces of mantle tissue of all three species were noxious to two species of antarctic fish. Primary body components (mantle, foot, viscera) of the three gastropod species contained high levels (% dry wt) of NaOH-insoluble protein (40–59%), moderate levels of NaOH-soluble protein (7–25%) and lipid (6–18%), and low levels of carbohydrate (< 1%). The energetic composition of the tissues reflected their organic make-up, with most energy (11–17 kJg?1 dry wt) associated with protein. Total energy contents of representative adult individuals were 192,26 and 69 kJ for A. kerguelensis (93 g wet wt), T. belli (22 g wet wt) and M. mollis (114 g wet wt), respectively. Although these sluggish gastropods lack an external shell and are nutrient-and energy-rich and therefore high quality prey, like many of their temperate and tropical counterparts, they appear to be protected by chemicals.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - vertebres: systeme cardiovasculaire
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - General Agricultural and Biological Sciences
Catégories WoS
  • 1 - science ; 2 - ecology
  • 1 - science ; 2 - biodiversity conservation
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Polar Biology

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  • Echinodermes
  • Poissons
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