. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. D) Q. O O. Days OP2 a - V - T a Ta 2345 Days Figure 1. Clilornpli\ll a coneentrution\ Imean ± / ) during experiment I mid experiment 2 with water collected from Oyster Pond (OP. bottom panels) ami Vineyard Sound I VS. tup panels). Where standard emirs cannot he .teen they are smaller than the symbol. Statistical similarities and differences, as denoted hy lowercase letters, were determined by a one-way ANOVA followed hy Tukey's honest significant difference test {P < ). ilarly productive freshwater systems are mos


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. D) Q. O O. Days OP2 a - V - T a Ta 2345 Days Figure 1. Clilornpli\ll a coneentrution\ Imean ± / ) during experiment I mid experiment 2 with water collected from Oyster Pond (OP. bottom panels) ami Vineyard Sound I VS. tup panels). Where standard emirs cannot he .teen they are smaller than the symbol. Statistical similarities and differences, as denoted hy lowercase letters, were determined by a one-way ANOVA followed hy Tukey's honest significant difference test {P < ). ilarly productive freshwater systems are most often P limited (2. 3). However, relatively little is known about low-salinity estuaries. The Baltic Sea is perhaps the best-studied estuary of this type; there, productivity has been shown to be limited by P at salinities lower than 3 to 4<£f and by N at higher salinities (4). Here, we report the results of a comparative set of nutrient limitation experiments in two coastal systems in Falmouth, Mas- sachusetts, of very different salinities: Vineyard Sound and Oyster Pond (32% c and , respectively). Previous studies have re- ported N limitation in Vineyard Sound (5. 6) as would be expected for a high-salinity coastal ecosystem (2. 3). In an October 1986 study, phytoplankton in Oyster Pond did not respond to N or P enrichments (5): Boston University Marine Program students ob- tained the same result from a similar experiment performed on Oyster Pond in October 2001. However, these experiments were not done during the peak growing season. Oyster Pond is currently considered to be mesotrophic to eutrophic (7), and with the watershed Hearing buildout, effective management of nutrient inputs may be important in controlling entrophication and algal blooms of concern. We conducted two sets of bottle enrichment experiments, from June 30 to July 5. 2002, and from July 22 to July 26. 2002. For both experiments, we sieved water through a 150-/nm mesh to remove large zooplankt


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology