Ph.D. student- University of Massachusetts,
Amherst
Education
M. S. University of Puerto Rico, 2000
B. S. University of Puerto Rico, 1994
Research Interests
The objective of my study is to determine the effect of sublethal concentrations
of hexazinone and atrazine at different stages of salmon life history.
Atlantic salmon are anadromus fish that spend their first years in fresh
water before migrating to the ocean. Any pollutants that enter into the
river can potentially affect the life history and survival of salmon.
Physiological systems such as salt regulation, stress response, growth
and energetics are critical for survival of fish. In my experiments Atlantic
salmon will be exposed to increasing doses of sublethal concentrations
of hexazinone and atrazine to determine the morphological, physiological,
endocrinological and osmoregulatory effect on both: as larvae (soon after
hatching) and the parr-smolt transformation. The effect on the smolt lifestage
will be studied in fresh and seawater. Physiological and endocrinological
change due to herbicide exposure may affect reproduction, behavior, migration,
which may directly affect the population recruitment and survival of the
species.
Publications
Rogowitz, G. L., M. Cortez-Rivera and K. Nieves-Puigdoller.
1999. Water Loss, Cutaneous Resistance, and the Effects of Dehydration
on Locomotion of Eleutherodactylus Frogs. J. Comp. Physiol. B 169:179-186.
Nieves-Puigdoller, K., Y. Sánchez de Leon and G. L. Rogowitz. The
Effect of Changes in Temperature on the Water Loss, Cutaneous Resistance
and Locomotor Performance of Eleutherodactylus antillensis and Eleutherodactylus
cochranae. (In prep).
Juanes, F., G. Kligys, A. Krauth, G. Mendez, M. Monette, K. Nieves-Puigdoller,
J. Odell and J. Sotiropoulos. 2003. Book Reviews; Marine Fisheries Ecology.
By S. Jennings, M.J. Kaiser and J.D. Reynolds. Blackwell Science, Oxford,
UK. 2001. 417 pages. Transactions of American Fisheries Society 132:619-620
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