Journal ArticleDOI
On the residence time of water in Narragansett Bay
TLDR
For Narragansett Bay, Rhode Island, newly calculated and archival data for the area, mean depth, total volume, mean salinity and fresh water input are presented in this paper.Abstract:
For Narragansett Bay, Rhode Island, newly calculated and archival data for the area, mean depth, total volume, mean salinity and fresh water input are presented Estimates of the residence time of the water, derived from 22 sets of monthly mean values, were related to estimates of the fresh water input according to the empirical relationship T=418 e−000435(FW), where T is the flushing time in days, and FW is the fresh water input in m3 per s; the r2 value is 0841 Adding estimates of the mean wind speed into a multiple regression increased the correlation coefficient only to 0864 At the long-term mean rate of fresh water input (105 m3 per s) the flushing time is 26 days At the lowest mean monthly input rate observed the flushing time was nearly 40 days, while at the highest mean monthly input rate in the data set (325 m3 per s) the flushing time was about 10 days Known sources of random error appear sufficient to account for most of the deviations from the relationship The evidence suggests that variation in the flushing time is largely determined by variation in the fresh water inputread more
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Book ChapterDOI
The fate of nitrogen and phosphorus at the land-sea margin of the North Atlantic Ocean
S. W. Nixon,James W. Ammerman,Larry P. Atkinson,V. M. Berounsky,Gilles Billen,William C. Boicourt,Walter R. Boynton,Thomas M. Church,D. M. Ditoro,Ragnar Elmgren,J. H. Garber,Anne E. Giblin,R. A. Jahnke,Nicholas J. P. Owens,Michael E. Q. Pilson,Sybil P. Seitzinger +15 more
TL;DR: In this paper, it was shown that the effective transport of active N and P from land to the shelf through very large rivers is reduced to 292 · 109 moles y-1 of N and 13 · 109moles y -1 of P.
Journal ArticleDOI
Organism life cycles, predation, and the structure of marine pelagic ecosystems
Peter G. Verity,Victor Smetacek +1 more
TL;DR: It is proposed that future research might profitably be directed toward the question of how the pelagic environment selects for life histories and morphologies of organisms under conditions when resource availability and predation are both significant structural buttresses.
Journal ArticleDOI
Nutrients and the productivity of estuarine and coastal marine ecosystems
TL;DR: The relationship between nutrient loading and nutrient cycling and the extent to which their interactions may set the levels of primary and secondary production in coastal systems has been investigated in this article, and it has been shown that some direct relationship exists between the input of nutrients and the productivity of higher trophic levels has been a principle of marine ecology since the turn of the century.
Journal ArticleDOI
Dispersal of juveniles and variable recruitment in sessile marine species
TL;DR: It is shown that nearly a decade of settlement variation of the barnacle, Semibalanus balanoides, closely matched predictions based solely on a transport hypothesis: differences in transport generate recruitment variation by determining whether larvae complete development near a favourable habitat.
Journal ArticleDOI
Physical energy inputs and the comparative ecology of lake and marine ecosystems
TL;DR: Although freshwater and marine systems both receive light and heat energy from the sun and are mixed by the wind, only marine systems receive additional mechanical energy from wind as discussed by the authors, which is very small relative to the flux of solar energy but may exceed that from wind.
References
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Journal ArticleDOI
Linear Regressions in Fishery Research
TL;DR: In the very common situation where the distribution of the variates is non-normal and open-ended, a functional regression is the most appropriate one even for purposes of prediction.
Journal ArticleDOI
Estuaries : a physical introduction
TL;DR: In this article, a classification of selforganizations is presented, including partially mixed and well-mixed selforests, with and without salt balance, cross-channel effects, and salt balance.
Journal ArticleDOI
A note on the concepts of age distribution and transit time in natural reservoirs
Bert Bolin,Henning Rodhe +1 more
TL;DR: A brief review of the concepts age distribution, transit time distribution, turnover time, average age and average transit time (residence time) and their relations is given in this article.
Book
A Coastal Marine Ecosystem: Simulation and Analysis
James N. Kremer,Scott W. Nixon +1 more
TL;DR: A model of the evolution of Ecosystem Models for Narragansett Bay and its Applications and Limitations, focusing on the role of Nutrients and Grazing in Phytoplankton Control, and its implications for Sensitivity and Stability.