scholarly journals Nutrient and phytoplankton dynamics in the Queen Charlotte Islands (Canada) during the summer upwelling seasons of 2001–2002

2007 ◽  
Vol 29 (3) ◽  
pp. 219-239 ◽  
Author(s):  
T. D. Peterson ◽  
H. N. J. Toews ◽  
C. L. K. Robinson ◽  
P. J. Harrison
Keyword(s):  
Phytoplankton Dynamics ◽  
Queen Charlotte Islands

Factors controlling phytoplankton dynamics in an arid reservoir in Tunisia (case of Sidi Saad dam)

2021 ◽  
Vol 193 (6) ◽  
Author(s):  
Lotfi Mabrouk ◽  
Asma Hamza ◽  
Hedi Ben Mansour
Keyword(s):  
Phytoplankton Dynamics

Modeling investigation of the nutrients and phytoplankton dynamics in the Moroccan Atlantic coast: A case study of Agadir coast

2021 ◽  
Vol 447 ◽  
pp. 109510
Author(s):  
Hanane Rhomad ◽  
Karima Khalil ◽  
Ramiro Neves ◽  
Blaid Bougadir ◽  
Khalid Elkalay
Keyword(s):  
Atlantic Coast ◽  
Phytoplankton Dynamics

To the Charlottes: George Dawson's 1878 Survey of the Queen Charlotte Islands

1994 ◽  
Vol 25 (2) ◽  
pp. 231
Author(s):  
Carol M. Eastman ◽  
Douglas Cole ◽  
Bradley Lockner ◽  
George Dawson
Keyword(s):  
Queen Charlotte Islands

Queen Charlotte fault zone: microearthquakes from a temporary array of land stations and ocean bottom seismographs

1981 ◽  
Vol 18 (4) ◽  
pp. 776-788 ◽  
Author(s):  
R. D. Hyndman ◽  
R. M. Ellis
Keyword(s):  
Fault Zone ◽  
Strike Slip ◽  
Ocean Bottom ◽  
Small Component ◽  
Queen Charlotte Islands ◽  
The North ◽  
Vertical Fault ◽  
Linear Sections ◽  
Ocean Bottom Seismographs ◽  
Steep Slopes

A temporary array of land and ocean bottom seismograph stations was used to accurately locate microearthquakes on the Queen Charlotte fault zone, which occurs along the continental margin of western Canada. The continental slope has two steep linear sections separated by a 25 km wide irregular terrace at a depth of 2 km. Eleven events were located with magnitudes from 0.5 to 2.0, 10 of them beneath the landward one of the two steep slopes, some 5 km off the coast of the southern Queen Charlotte Islands. No events were located beneath the seaward and deeper steep slope. The depths of seven of these events were constrained by the data to between 9 and 21 km with most near 20 km. The earthquake and other geophysical data are consistent with a near vertical fault zone having mainly strike-slip motion. A model including a small component of underthrusting in addition to strike-slip faulting is suggested to account for the some 15° difference between the relative motion of the North America and Pacific plates from plate tectonic models and the strike of the margin. One event was located about 50 km inland of the main active zone and probably occurred on the Sandspit fault. The rate of seismicity on the Queen Charlotte fault zone during the period of the survey was similar to that predicted by the recurrence relation for the region from the long-term earthquake record.

scholarly journals Phytoplankton dynamics in relation to Red tide appearance in Qarun Lake, Egypt

2021 ◽  
Author(s):  
Ezzat A. Ibrahim ◽  
Shymaa S. Zaher ◽  
Wael M. Ibrahim ◽  
Yassmeen A. Mosad
Keyword(s):  
Red Tide ◽  
Phytoplankton Dynamics

Postharvest recovery of beds of the edible red alga Porphyra perforata

1984 ◽  
Vol 62 (9) ◽  
pp. 1968-1970 ◽  
Author(s):  
William G. Roland ◽  
L. Michael Coon
Keyword(s):  
Standing Crop ◽  
Negative Impact ◽  
Control Area ◽  
Percent Cover ◽  
Annual Fluctuation ◽  
Queen Charlotte Islands ◽  
Negative Effect ◽  
Large Plot ◽  
Small Plot ◽  
Whole Plants

Recovery of intertidal Porphyra beds following hand harvest was studied near the northwest tip of the Queen Charlotte Islands, B.C. Twenty-six percent of the standing crop of Porphyra perforata J. Ag. was removed in a large plot in June 1981; no negative effect on standing crop was apparent in May 1982 as compared with the adjacent control area. There was no negative impact on percent cover of Porphyra (mostly P. perforata) within 1 year after hand harvest of seven, approximately 1-m2 plots, as compared with respective controls. Annual fluctuation in cover, biomass, and relative mix of Porphyra species was large. Porphyra cover in a small plot harvested in early June 1981 increased to 86% of the June value by mid-July 1981, indicating substantial growth of the remaining thallus fragments and small, whole plants within one season. It was concluded that sustained yield of Porphyra beds can be assured if harvest is restricted to gathering by hand.

scholarly journals The Saw-Whet Owl of the Queen Charlotte Islands

The Auk ◽  
1916 ◽  
Vol 33 (4) ◽  
pp. 420-423 ◽  
Author(s):  
J. H. Fleming
Keyword(s):  
Queen Charlotte Islands
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