Importance of wind and river discharge in influencing nutrient dynamics and phytoplankton production in summer in the central Strait of Georgia

Yin, Kedong; Rh, Goldblatt; Harrison, P J; John, Michael St.; Clifford, PJ; Beamish, RJ

doi:10.3354/meps161173

Cited by 45 publications

(40 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The role of such episodic events, which may have been missed on a monthly sampling, is often very important to the annual picture of phytoplankton production (e.g. YIN et al, 1997). From the data presented in this paper, the river discharge of SPM can be estimated to 33 x 10 5 kg yr -1 .…”

Section: Discussionmentioning

confidence: 78%

“…Thus, a common feature of estuaries and coastal waters that receive the input of rivers is a decreasing gradient of salinity, the concentration of river transported materials and biotic factors of planktonic and benthic communities from the river mouth seawards, often resulting in more eutrophic conditions in the areas close to freshwater source (e.g. TAYLOR 1993;TEXIER et al, 1993;YSEBAERT et al, 1993;LOPES, 1994;BOYNTON et al, 1996;YIN et al, 1997, KRSTULOVIC ã et al, 1998YIANNAKOPOULOU, 1998).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Variability of environmental factors of an eastern Mediterranean Sea river influenced coastal system

2003

View full text Add to dashboard Cite

Spercheios River discharge rates of nutrients, suspended particulate matter (SPM) and particulate organic carbon (POC) and seawater concentrations of these parameters as well as chlorophyll a (chl a) were measured in the Maliakos Gulf, Greece, on a monthly basis between 1992-1993. From all the nutrients measured, silicate showed the highest discharge rates followed by nitrate, phosphate and nitrite. The river introduced significant amounts of SPM (8.5 -35.5 Kg d -1 ) with very low POC content (<3%). Most of the variables measured showed no gradient from the river to the outer gulf, which could be attributed to fast mixing of the incoming water. However, chl a had higher concentrations in the inner (0.3 -4.9 Ìg l -1 ) and lower in the outer gulf (0.05 -2.5 Ìg l -1 ). It is suggested that the nutrients introduced by the river are consumed faster in the inner gulf and that a number of temporal streams and non-point sources at the periphery of the gulf prevent the formation of a gradient.

show abstract

Section: Discussionmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Variability of environmental factors of an eastern Mediterranean Sea river influenced coastal system

2003

View full text Add to dashboard Cite

show abstract

“…4). As the post-wind bloom of phytoplankton developed along P4-P6 due to the newly supplied nutrients (Yin et al, 1997b), the N : P ratio followed the distribution of NO − 3 at P4, and decreased to zero as NO − 3 was depleted at the surface at P6 (Fig. 4).…”

Section: Vertical Profiles Of Nutrients and Nutrient Ratiosmentioning

confidence: 99%

“…A strong wind speed event occurred on 7 August and the water column was mixed (Yin et al, 1997b). We followed the change in the nutrient profiles and nutrient ratios from S3 near the Fraser River plume to P4 and P6 and well beyond the plume to S1.…”

Section: Vertical Profiles Of Nutrients and Nutrient Ratiosmentioning

confidence: 99%

Sequential nutrient uptake as a potential mechanism for phytoplankton to maintain high primary productivity and balanced nutrient stoichiometry

2017

View full text Add to dashboard Cite

Abstract. We hypothesize that phytoplankton have the sequential nutrient uptake strategy to maintain nutrient stoichiometry and high primary productivity in the water column. According to this hypothesis, phytoplankton take up the most limiting nutrient first until depletion, continue to draw down non-limiting nutrients and then take up the most limiting nutrient rapidly when it is available. These processes would result in the variation of ambient nutrient ratios in the water column around the Redfield ratio. We used highresolution continuous vertical profiles of nutrients, nutrient ratios and on-board ship incubation experiments to test this hypothesis in the Strait of Georgia. At the surface in summer, ambient NO . This sequential uptake strategy allows phytoplankton to acquire additional cellular phosphorus and silicon when they are available and wait for nitrogen to become available through frequent mixing of NO − 3 (or pulsed regenerated NH 4 ). Thus, phytoplankton are able to maintain high productivity and balance nutrient stoichiometry by taking advantage of vigorous mixing regimes with the capacity of the stoichiometric plasticity. To our knowledge, this is the first study to show the in situ dynamics of continuous vertical profiles of N : P and N : Si ratios, which can provide insight into the in situ dynamics of nutrient stoichiometry in the water column and the inference of the transient status of phytoplankton nutrient stoichiometry in the coastal ocean.

show abstract

“…These blooms are seldom reported, since an oceanographic vessel in a local storm does not usually have the time to hang around for the several days required for the appearance of the bloom. In recent years, however, this phenomenon has been remarked upon in a number of papers (Abbott et al, 1990;Nömmann et al, 1991;Chang et al, 1996;Moline and Prézelin, 1996;Yin et al, 1997). as Goldman (1993) has pointed out, such blooms can amount to an appreciable fraction of the yearly productivity.…”

Section: Discontinuities In Timementioning

confidence: 99%

Methods of sampling and analysis and our concepts of ocean dynamics

Wangersky¹

2005

Sci. Mar.

View full text Add to dashboard Cite

SUMMARY: In the last two decades, the increase in multi-nation, multi-ship projects has underlined the importance of intercalibration and intercomparison studies. At the same time, it is becoming obvious that with our present methods of sampling and analysis we can never hope to distinguish the variability in our sampling and analysis techniques from the variability in the universe sampled. The presence of discontinuities in many of the quantities measured suggests that our sampling grid, as maintained by oceanographic vessels, is too limited both in space and in time. Some variety of self-reporting sampling buoy is the obvious answer for physical and chemical parameters, although as yet we do not have detectors for many of the quantities of interest. Even with such buoys, it would seem unlikely that we could construct a grid of such buoys tight enough to measure the local variability of the oceans without the buoys themselves contributing to this variability. The limit finally selected for such a sampling grid will probably be some compromise between scientific capability and economic reality. -En las dos últi-mas décadas el incremento de los proyectos multi-nacionales, con la utilización de muchos barcos ha subrayado la importancia de inter-calibración y comparación de estudios. Al mismo tiempo es obvio que con los métodos actuales de muestreo

show abstract

Importance of wind and river discharge in influencing nutrient dynamics and phytoplankton production in summer in the central Strait of Georgia

Cited by 45 publications

References 17 publications

Variability of environmental factors of an eastern Mediterranean Sea river influenced coastal system

Variability of environmental factors of an eastern Mediterranean Sea river influenced coastal system

Sequential nutrient uptake as a potential mechanism for phytoplankton to maintain high primary productivity and balanced nutrient stoichiometry

Methods of sampling and analysis and our concepts of ocean dynamics

Contact Info

Product

Resources

About