Nutritional Ecology of Agalma Okeni (Siphonophora: Physonectae)

  • Douglas C. Biggs


Siphonophores are among the 10 major groups of zooplankton collected by plankton tows in the upper 200 m of the Sargasso Sea (Grice and Hart, 1962; Deevey and Brooks, 1971) and they comprise 45–67% of the macroplankton (i. e., siphonophores, medusae, molluscs, chaetognaths, and thaliaceans) in areas of the Mediterranean (Boucher and Thiriot, 1972). Their widespread occurrence in the open ocean suggests that siphonophores are important components of oceanic ecosystems. However, most are extremely delicate and are rarely seen alive. None have been studied in their natural environment, and because of their fragility little information has been available on their metabolism and production.


Ammonia Excretion Nitrogenous Excretion Small Colony Nutritional Ecology Phenol Hypochlorite 
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Copyright information

© Springer Science+Business Media New York 1976

Authors and Affiliations

  • Douglas C. Biggs
    • 1
  1. 1.Woods Hole Oceanographic InstitutionWoods HoleUSA

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