The Bryozoa of the Galápagos

  • William C. Banta
Part of the Topics in Geobiology book series (TGBI, volume 8)

Abstract

One hundred eighty-four species of bryozoans are present in the Galápagos Islands (Banta and Redden, 1990), a number comparable to that of the most diverse bryozoan faunas known. This number is probably an underestimate, especially for ctenostomes. Variations in species lists among the Islands are small, so at least for the purposes of this report, the Galápagos can be treated as a single zoogeographical unit. Although the relative numbers of anascan and ascophoran cheilostome is near the average for the rest of the world, the proportion of stenolaemates (18%) is about twice as high as than in the rest of the Panamic. Comparable proportions of stenolaemates are found in the Magellanic and Chilean waters off South America, but otherwise there is zoogeographic affinity between these areas and the Galápagos. Relatively low water temperatures and elevated productivities associated with upwelling do not fully explain the high proportion of stenolaemates in Galápagos waters.

Keywords

Galapagos Island Larval Type Planktotrophic Larva Bryozoan Species Maximum Latitude 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • William C. Banta
    • 1
  1. 1.Department of BiologyThe American UniversityUSA

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