BIOAVAILABILITY OF CHLORINATED DIBENZO-p-DIOXINS AND DIBENZOFURANS TO DUNGENESS CRAB (CANCER MAGISTER) AT MARINE PULP MILL SITES IN BRITISH COLUMBIA, CANADA

2000 ◽  
Vol 19 (12) ◽  
pp. 2997 ◽  
Author(s):  
Mark B. Yunker ◽  
Walter J. Cretney
Keyword(s):  
British Columbia ◽  
Pulp Mill ◽  
Dungeness Crab ◽  
Cancer Magister

Population Structure of Dungeness Crab (Cancer magister) in British Columbia

2008 ◽  
Vol 27 (4) ◽  
pp. 901-906 ◽  
Author(s):  
Terry D. Beacham ◽  
Janine Supernault ◽  
Kristina M. Miller
Keyword(s):  
British Columbia ◽  
Population Structure ◽  
Dungeness Crab ◽  
Cancer Magister

Quantifying Changes in British Columbia Dungeness Crab (Cancer magister) Landings Using Intervention Analysis

1986 ◽  
Vol 43 (3) ◽  
pp. 634-639 ◽  
Author(s):  
D. Noakes
Keyword(s):  
British Columbia ◽  
Time Series Data ◽  
Statistical Tests ◽  
Series Data ◽  
Dungeness Crab ◽  
Intervention Model ◽  
Cancer Magister ◽  
Abrupt Decrease ◽  
The Impact ◽  
Future Management

Natural or man-induced interventions may cause temporary or permanent changes in the behaviour of biological systems. To determine the impact of future management decisions, it is first necessary to quantify the effects of past interventions on the system. Only then can rational decisions be made so as to ensure that the desired response is achieved. However, time series data are often autocorrelated and this precludes the use of standard statistical tests. The linear stochastic intervention model outlined in this paper takes this autocorrelation into account and provides a procedure for quantifying the impacts of particular interventions. This model is employed to determine if there has been a significant abrupt decrease in Dungeness crab (Cancer magister) landings in British Columbia.

An Analysis of Acid-Base Disturbances in the Haemolymph Following Strenuous Activity in the Dungeness Crab, Cancer Magister

1979 ◽  
Vol 79 (1) ◽  
pp. 47-58
Author(s):  
D. G. McDONALD ◽  
B. R. McMAHON ◽  
C. M. WOOD
Keyword(s):  
Lactate Concentration ◽  
Dungeness Crab ◽  
Acid Base ◽  
Cancer Magister ◽  
Rapid Release ◽  
Strenuous Activity ◽  
Lactate Levels ◽  
Acid Base Disturbance ◽  
Base Disturbance

Enforced activity causes a marked depression of haemofymph pH in Cancer magister. Both lactate concentration and PCOCO2 of the haemolymph are elevated immediately following exercise but resting PCOCO2 is restored within 30 min whereas resting lactate levels are not restored for at least 8 h. The haemolymph acid-base disturbance is caused largely by elevated haemolymph lactate levels but a Davenport analysis based on measurements of pH and total CO2 reveals a marked discrepancy between the amount of metabolic acid buffered by the haemolymph and the lactate anion concentration. This appears due to a more rapid release of lactate from the tissues than H+ ions produced with lactate.

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