110
further studies which may elucidate some of the many mysteries still clouding our
perception of the workings of oligotrophic seas.
Acknowledgements
This paper is dedicated to the memory of the late O.H. Oren, a pioneer of Israeli
oceanographic research, who died on 4 November 1983. We thank Drs. A. Hecht and
B. Kimor in Israel and Drs. N.M. Dowidar and S. Sharif El Din in Egypt for constructive
comments and discussions. For sampling and technical assistance we are grateful to
A. Shneller, Y. Almog, Hussein Abd El Reheim and to Captain A. Zur and crew of the
R/V Shikmona. This research was funded by a grant from the U.S. Agency for International Development and is a contribution from the Israel Oceanographic & Limnological
Research Co., and the Bigelow Laboratory for Ocean Sciences. No. 83028.
References
Azam F (1983) Bacterioplankton secondary production and its regulation by environmental factors. Proc. Workshop on Measurement of Microbial Activities in the Carbon
Cycle in Aquatic Ecosystems. PIon (in press).
Banse K (1982) Cell volumes, maximal growth rates of unicellular algae and ciliates,
and the role of ciliates in the marine pelagial. Limnol. Oceanogr. 27(6) :1059-1071.
Bell WH Land JM and Mitchell R (1974) Selective stimulation of marine bacteria by algal
extracellular products .. Limnol. Oceanogr. 19
833-839.
Capriulo GM and Carpenter EJ (1980) Grazing by 35 to 202 pm microzooplankton in Long
Island Sound. Mar. BioI. 56 : 319-326.
Capriulo GM and Carpenter EJ (1983) Abundance, species composition, and feeding
impact of tintinnid micro-zooplankton in Central Long Island Sound. Mar. Ecol.
Prog. Ser. 10 : 277-288.
Cullen JJ (1982) The deep chlorophyll maximum: comparing vertical profiles of chlorophyll ~. Can. J. Fish Aqua. Sci. 39 : 791-803.
Eppley RW (1980) Estimating phytoplankton growth rates in the central oligotrophic
oceans. In: Falkowski PG (ed.) Primary Productivity in the Sea. Plenum Press,
New York, p. 231-242.
Fenchel T (1982) Ecology of heterotrophic microflagellates. II. Bioenergetics and
growth. Mar. Ecol. Prog. Ser. 8 : 225-231.
Gieskes WWC Kraay GL and Baars MA (1979) Current 14C methods for measuring primary
production: gross underestimates in oceanic waters. Netherland J. Sea Res. 13:
50-78.
further studies which may elucidate some of the many mysteries still clouding our
perception of the workings of oligotrophic seas.
Acknowledgements
This paper is dedicated to the memory of the late O.H. Oren, a pioneer of Israeli
oceanographic research, who died on 4 November 1983. We thank Drs. A. Hecht and
B. Kimor in Israel and Drs. N.M. Dowidar and S. Sharif El Din in Egypt for constructive
comments and discussions. For sampling and technical assistance we are grateful to
A. Shneller, Y. Almog, Hussein Abd El Reheim and to Captain A. Zur and crew of the
R/V Shikmona. This research was funded by a grant from the U.S. Agency for International Development and is a contribution from the Israel Oceanographic & Limnological
Research Co., and the Bigelow Laboratory for Ocean Sciences. No. 83028.
References
Azam F (1983) Bacterioplankton secondary production and its regulation by environmental factors. Proc. Workshop on Measurement of Microbial Activities in the Carbon
Cycle in Aquatic Ecosystems. PIon (in press).
Banse K (1982) Cell volumes, maximal growth rates of unicellular algae and ciliates,
and the role of ciliates in the marine pelagial. Limnol. Oceanogr. 27(6) :1059-1071.
Bell WH Land JM and Mitchell R (1974) Selective stimulation of marine bacteria by algal
extracellular products .. Limnol. Oceanogr. 19
833-839.
Capriulo GM and Carpenter EJ (1980) Grazing by 35 to 202 pm microzooplankton in Long
Island Sound. Mar. BioI. 56 : 319-326.
Capriulo GM and Carpenter EJ (1983) Abundance, species composition, and feeding
impact of tintinnid micro-zooplankton in Central Long Island Sound. Mar. Ecol.
Prog. Ser. 10 : 277-288.
Cullen JJ (1982) The deep chlorophyll maximum: comparing vertical profiles of chlorophyll ~. Can. J. Fish Aqua. Sci. 39 : 791-803.
Eppley RW (1980) Estimating phytoplankton growth rates in the central oligotrophic
oceans. In: Falkowski PG (ed.) Primary Productivity in the Sea. Plenum Press,
New York, p. 231-242.
Fenchel T (1982) Ecology of heterotrophic microflagellates. II. Bioenergetics and
growth. Mar. Ecol. Prog. Ser. 8 : 225-231.
Gieskes WWC Kraay GL and Baars MA (1979) Current 14C methods for measuring primary
production: gross underestimates in oceanic waters. Netherland J. Sea Res. 13:
50-78.