LAGOON PLANKTON 



215 



ton in the lagoons is considerably higher than in the sur- 

 rounding ocean waters (Chap. 10, Volume 1). Thus, the 

 zooplankton of lagoons in the Marshall Islands is composed 

 of similar species, and we would expect only slight varia- 

 tions in community structure from lagoon to lagoon reflect- 

 ing small habitat and geographic differences. 



Included in this lagoon zooplankton, and yet ignored 

 thus far, is the meroplanktonic component comprised 

 mostly of the larvae of the many reef invertebrates and 

 fishes as well as some adventurous benthic forms which 

 occasionally move into the water column. Various 

 researchers (e.g., Gerber and Marshall, 1974; Hobson and 

 Chess, 1978) have shown that the meroplankton some- 

 times dominates the zooplankton and becomes an impor- 

 tant food of reef and lagoon fishes. 



ACKNOWLEDGMENTS 



I thank Dennis M. Devaney and Ernst S. Reese for 

 inviting me to participate in this book. Thanks is also due 

 to the Mid-Pacific Marine Laboratory whose facilities I used 

 during my zooplankton studies. For use of some chaeto- 

 gnath and siphonophore data, I thank Angeles Alvarino; 

 and 1 thank H. Hirchfield and L. Helson, for use of their 

 protozoan data. I also thank Thomas Bowman for informa- 

 tion he provided and Bowman and Beatrice Burch for their 

 helpful editorial comments. Anne Barrington, Pamela 

 Labbc, and Gloria Chamard have done a fine job typing 

 the drafts and final copies of this chapter — many thanks. 



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