139
SUMMARY
In this paper, the summarized results are:
1) the ratio ES30 :E 4S0 is strongly correlated with chlorophyll.
abundance. We believe this reflects the influence of growth changes
in nutrient limited conditions.
2) chlorophyll a fluorescence is much more effective excited by
green wavelengths greater than 500 nm in coastal water populations
than in populations of the open sea. We believe this is due to the
fact that in coastal waters, accessibility to nutrients is much
greater than in the oligotrophic waters.
3) fluorescence from biliproteins, such as phycoerythrin, is
observed in all samples. The majority of this fluorescence is from
small microorganisms such as cyanobacteria and/or cryptomonads
(Yentsch and Phinney, 1984).
For reasons that are unclear, these
organisms seem to be able to persist in environments where growth
tends to limit organisms with substantial quanti ties of carotenoid
protein.
ACKNOWLEDGEMENTS
Most oceanographers recognize the interrelationship of biochemistry and field observations of biological oceanography. This interaction is vital to the science and its steady progression.
The
convenor of this symposium has championed this approach. Dr. Osmund
Holm-Hansen's entire career has straddled the extremes of classical
biochemistry to fundamental biological oceanography.
Ozzie's role
has been one of translating technique, philosophy, and interpretation
for the biological oceanographic community.
It is an activity that
he has done extremely well and has received too few thanks.
I wish
to thank him for the invitation to this symposium and the very
pleasant atmosphere he provided.
Support for this work was provided by NASA grant numbers
NAGW-410 and NASS-27742.
The is contribution number 83038 from the Bigelow Laboratory for
Ocean Sciences.
The authors acknowledge the able assistance of P.
Boisvert in the preparation of this manuscript and J. Rollins in
drafting the figures.
SUMMARY
In this paper, the summarized results are:
1) the ratio ES30 :E 4S0 is strongly correlated with chlorophyll.
abundance. We believe this reflects the influence of growth changes
in nutrient limited conditions.
2) chlorophyll a fluorescence is much more effective excited by
green wavelengths greater than 500 nm in coastal water populations
than in populations of the open sea. We believe this is due to the
fact that in coastal waters, accessibility to nutrients is much
greater than in the oligotrophic waters.
3) fluorescence from biliproteins, such as phycoerythrin, is
observed in all samples. The majority of this fluorescence is from
small microorganisms such as cyanobacteria and/or cryptomonads
(Yentsch and Phinney, 1984).
For reasons that are unclear, these
organisms seem to be able to persist in environments where growth
tends to limit organisms with substantial quanti ties of carotenoid
protein.
ACKNOWLEDGEMENTS
Most oceanographers recognize the interrelationship of biochemistry and field observations of biological oceanography. This interaction is vital to the science and its steady progression.
The
convenor of this symposium has championed this approach. Dr. Osmund
Holm-Hansen's entire career has straddled the extremes of classical
biochemistry to fundamental biological oceanography.
Ozzie's role
has been one of translating technique, philosophy, and interpretation
for the biological oceanographic community.
It is an activity that
he has done extremely well and has received too few thanks.
I wish
to thank him for the invitation to this symposium and the very
pleasant atmosphere he provided.
Support for this work was provided by NASA grant numbers
NAGW-410 and NASS-27742.
The is contribution number 83038 from the Bigelow Laboratory for
Ocean Sciences.
The authors acknowledge the able assistance of P.
Boisvert in the preparation of this manuscript and J. Rollins in
drafting the figures.