Limnology and Oceanography
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Mechanisms for nutrient delivery to the inner shelf: Observations from the Santa Barbara ChannelOceanic sources of nutrients to the kelp forests of the Santa Barbara Channel were diagnosed using time series from three moorings in 12‐ to 17‐m water depth. An in situ nitrate autoanalyzer on the moorings provided the first high‐resolution time series of nitrate + nitrite (dissolved inorganic nitrogen, DIN) concentrations for this environment. Measurements between February 2001 and May 2... ...
Limnology and Oceanography - Tập 52 Số 5 - Trang 1748-1766 - 2007
Experimental evidence of passive accumulation of marine bivalve larvae on filamentous epibenthic structuresA series of multifactorial experiments were carried out, in the field and in a flume, to test the hypothesis that early recruitment of semimobile bivalve spat on an epibenthic filamentous substratum is directly related to the heterogeneity (branching pattern) and the diameter of their individual branches or filaments and to evaluate the likelihood that passive settlement processes influenc... ...
Limnology and Oceanography - Tập 40 Số 1 - Trang 94-104 - 1995
Bacterial recolonization of deposit‐feeder egesta: In situ regrowth or immigration?The related processes of disturbance, recolonization, and succession can play major roles in structuring communities and in generating spatial heterogeneity. Nonequilibrium processes have been little studied with respect to microbial community dynamics. Here we report experimental efforts to identify the mechanisms of recolonization of egesta employing two intertidal deposit feeders, ...
Limnology and Oceanography - Tập 46 Số 5 - Trang 1171-1181 - 2001
EXCRETION OF PHOSPHATE AND SOLUBLE ORGANIC PHOSPHORUS COMPOUNDS BY ZOOPLANKTON1Net plankton excretes daily an amount of phosphorus nearly equal to its total phosphorus content. Slightly more than half of the excreted phosphorus is phosphate and the remainder is in soluble organic compounds. Phosphorus excreted by zooplankton may constitute a significant fraction of that required for photosynthesis by the phytoplankton.
Limnology and Oceanography - Tập 8 Số 1 - Trang 50-55 - 1963
THE CYCLE OF PHOSPHORUS IN A PLANKTON BLOOM IN THE GULF OF MAINE1The cycle of phosphorus was studied in detail during the spring bloom of phytoplankton in the Gulf of Maine in April 1964. A parachute drogue was placed at a depth of 10 m so that the movement of the surface water could be Followed. Five stations were occupied (luring an interval of 24 hr on 8–9 April when the drogue was launched and another five stations at the location of the drogue were... ...
Limnology and Oceanography - Tập 10 Số suppl - 1965
FURTHER MEASUREMENTS OF PRIMARY PRODUCTION USING A LARGE‐VOLUME PLASTIC SPHEREThe experiment described by McAllister, et al. (1961), in which a phytoplankton bloom was induced to occur in a free‐floating 20‐ft diameter thin transparent plastic sphere has been repeated. Daily measurements were made of nutrients, particulate matter, and photosynthetic rates with less frequent assays for vitamins and dissolved organic matter. In ... ...
Limnology and Oceanography - Tập 8 Số 2 - Trang 166-183 - 1963
ALKALINE PHOSPHATASES AND PHOSPHORUS AVAILABILITY IN LAKE KINNERET1,2Alkaline phosphatase activities were determined in water samples taken from three depths at a central point in Lake Kinneret (Lake Tiberias). Seasonal fluctuations were shown, and also indications of induction‐repression or activation and inhibition mechanisms, or both, with respect to total phosphorus, and, during stratification, the existence of a metalimnetic layer of intense activity. ... ...
Limnology and Oceanography - Tập 15 Số 5 - Trang 663-674 - 1970
Phosphate utilization by an oceanic diatom in phosphorus‐limited chemostat culture and in the oligotrophic waters of the central North Pacific1Thalassiosira pseudonana from the oligotrophic waters of the central North Pacific Ocean was grown in phosphorus‐limited chemostat culture. When the chemical composition of the cells, expressed as ratios, was compared with that of nitrogen‐limited cultures, several of these ratios varied in excess of a factor of five between the two systems. Among these, which em...
Limnology and Oceanography - Tập 21 Số 1 - Trang 88-107 - 1976
Bacterioplankton distribution and production in the bathypelagic ocean: Directly coupled to particulate organic carbon export?,A recently published evaluation of bacterioplankton abundance and productivity in the bathypelagic North Pacific suggests that these properties are generally coupled with particulate organic carbon (POC) fluxes. In that analysis, bacterial biomass and productivity were several–fold greater in subarctic than subtropical waters, consistent with the basin–scale distribution of POC flux and su... ...
Limnology and Oceanography - Tập 48 Số 1 - Trang 150-156 - 2003
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