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Patricia
M. Kremer
University of Connecticut
Department of Marine Sciences
1080 Shennecossett Road
Groton, CT 06340
voice: (860) 405-9140
fax: (860) 405-9153
e-mail:
patricia.kremer@uconn.edu
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Much
of my research has focused on the ecology of gelatinous
zooplankton including the significance of these watery
non-crustacean zooplankton in marine ecosystems. For
several species, my investigations have been among the
first quantitative investigations of elemental composition,
metabolic rates and nutritional ecology. My studies
are typically broad, investigating several aspects of
the ecology of the target species. Although my research
has primarily involved the autecology of single species,
I have attempted to evaluate the results in the context
of the ecosystem in which the animals live and the biogeochemical
cycles of which they are a part.
Past
research has included a variety of studies that have
attempted to understand the bioenergetics of gelatinous
organisms. Part of this work has been comparative studies
of respiration and excretion rates for several species
of ctenophores, salps, medusae and siphonophores in
both subtropical and temperate waters. Other studies,
primarily with ctenophores, include experimental investigations
of feeding, growth and fecundity, and formulations of
elemental budgets and growth models based on the experimental
results. |
| My
investigations of a scyphozoan medusa with symbiotic
dinoflagellates included photophysiology, respiration,
ingestion, nutrient uptake, reproduction and growth
in an attempt to measure directly all the major fluxes
for carbon and nitrogen in this algal-animal symbiotic
association. Studies of salps have included quantification
of biomass, feeding rates, defecation rates and size
retention efficiency of particulate prey. When abundant,
salps can be responsible for a considerable amount of
vertical flux as they transform small particulates into
fast-sinking feces.
My
long-term research goal is to understand how biotic
and abiotic factors influence the population dynamics
of conspicuous gelatinous species and contribute to
observed seasonal and interannual variability in abundance.
Some
Representative Publications
Kremer, P. and M.R. Reeve. 1989. Growth dynamics of a
ctenophore Mnemiopsis in relation to variable
food supply II: Carbon budgets and growth model. J.
Plankton Res. 11: 553-574.
Kremer, P., J. Costello, J. Kremer and M. Canino. 1990.
Photobiology of the scyphomedusa Linuche unguiculata
and the significance of endosymbionts to their
carbon budget. Limnol. Oceanog. 35:
609-624.
Kremer, P., and L.P. Madin. 1992. Particle retention
efficiency of salps. J. Plankton Res. 14:
1009-1015.
Kremer, P. 1994. Patterns of abundance for Mnemiopsis
in US coastal waters: a comparative overview. ICES
J. Mar. Sci. 51: 347-354.
Madin, L.P. and P. Kremer. 1995. Determination of the
filter feeding rates of salps (Tunicata, Thaliacea).
ICES J. Mar. Res. 52: 583-595.
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