Taxonomy of the eolid nudibranchCratena pilata (gould)Springer Science and Business Media LLC - Tập 9 - Trang 264-266 - 1968
David R. Franz
Taxonomically important aspects of the anatomy of the common eolid
nudibranch,Cratena pilata, are presented. The uniserate radula possesses a
prominent central cusp and 4 to 7 lateral cusps. Up to 60% of radular teeth may
be asymmetric. The triangular, slightly emarginate jaws are described and
figured. The genitalia are of the facelinid type and are described. The penis is
unarmed. On the basis o... hiện toàn bộ
Short-term fluorescence and dissolved oxygen relationships in the upper Chesapeake BaySpringer Science and Business Media LLC - Tập 12 - Trang 45-47 - 1971
David A. Flemer, Robert B. Biggs
Short-term variations in fluorescence and dissolved oxygen were recorded from a
fixed station between 6 and 7 m over 12 m of water in upper Chesapeake Bay. The
late afternoon curves showed a positive relationship and the early evening
curves exhibited an inverse correspondence. The observed oscillations could
result from internal waves but the variations in space and time may represent
discrete pa... hiện toàn bộ
Meiofauna-macrofauna interactions: I. Sand beach meiofauna affected by maturingLimulus eggsSpringer Science and Business Media LLC - Tập 17 - Trang 297-299 - 1976
William D. Hummon, John W. Fleeger, Margaret R. Hummon
Differential aggregation of meiofauna was associated with the presence of
maturingLimulus eggs in a Roosevelt Inlet, Delaware, beach. Nematodes,
gastrotrichs, oligochaetes and rotifers increased, whereas harpacticoid
copepods, tardigrades and megalops larvae decreased; ostracods, turbellarians
and nauplius larvae remained constant. Increase of Gastrotricha was attributable
to but one of the severa... hiện toàn bộ