scholarly journals Latitudinal variation in size structure of the west coast purple sea urchin: A correlation with headlands1

1988 ◽  
Vol 33 (2) ◽  
pp. 286-294 ◽  
Author(s):  
Thomas A. Ebert ◽  
Michael P. Russell
Keyword(s):  
Sea Urchin ◽  
West Coast ◽  
Size Structure ◽  
Latitudinal Variation ◽  
The West ◽  
Purple Sea Urchin

ELEFAN Based Population Dynamics of Bombay Duck, Harpadon nehereus Inhabiting the Marine Waters of the West Coast of India

2020 ◽  
Author(s):  
Fofandi Mahendrakumar ◽  
D Prathibha Rohit
Keyword(s):  
West Coast ◽  
Size Structure ◽  
Growth Parameters ◽  
Total Mortality ◽  
Fishing Pressure ◽  
The West ◽  
Growth Coefficient ◽  
West Coast Of India ◽  
Bombay Duck ◽  
Harpadon Nehereus

We studied ELEFAN based population parameters from length-frequency data for Harpadon nehereus collected from different landing centres along the west coast of India. We analyzed the size structure and estimated growth parameters, recruitment, mortality and exploitation rate using FiSAT-II software. The asymptotic length (Lµ = 366 mm), growth coefficient (K = 0.98 year-1), total mortality (Z=3.32 year-1), natural mortality (M=1.6375 year-1), fishing mortality (F=1.6825 year-1), growth performance index (Ø = 3.12) and exploitation ratio (E = 0.51) were worked out for the species. The exploitation ratios were computed as Emax= 0.661, E10= 0.568, E50= 0.345. The length at first capture (Lc50) was estimated at 163.44 mm. The present value of E was found close to appropriate fishing pressure on the stock and a further increase of fishing pressure is not recommended.

Eelgrass (Zostera marina) restoration on the west coast of Sweden using seeds

2016 ◽  
Vol 546 ◽  
pp. 31-45 ◽  
Author(s):  
E Infantes ◽  
L Eriander ◽  
PO Moksnes
Keyword(s):  
West Coast ◽  
Zostera Marina ◽  
The West

Changes in soil quality following humping/hollowing and flipping of pakihi soils on the West Coast, South Island New Zealand

2007 ◽  
pp. 265-270 ◽  
Author(s):  
S.M. Thomas ◽  
M.H.Beare C.D. Ford ◽  
V. Rietveld
Keyword(s):  
Organic Matter ◽  
Soil Quality ◽  
West Coast ◽  
Land Development ◽  
Hot Water ◽  
Limited Information ◽  
The West ◽  
Organic Matter Quality ◽  
Pasture Production ◽  
Soil C

Humping/hollowing and flipping are land development practices widely used on the West Coast to overcome waterlogging constraints to pasture production. However, there is very limited information about how the resulting "new" soils function and how their properties change over time following these extreme modifications. We hypothesised that soil quality will improve in response to organic matter inputs from plants and excreta, which will in turn increase nutrient availability. We tested this hypothesis by quantifying the soil organic matter and nutrient content of soils at different stages of development after modification. We observed improvements in soil quality with increasing time following soil modification under both land development practices. Total soil C and N values were very low following flipping, but over 8 years these values had increased nearly five-fold. Other indicators of organic matter quality such as hot water extractable C (HWC) and anaerobically mineralisable N (AMN) showed similar increases. With large capital applications of superphosphate fertiliser to flipped soils in the first year and regular applications of maintenance fertiliser, Olsen P levels also increased from values

From Hard Money to Branch Banking

2016 ◽  
Vol 93 (1) ◽  
pp. 26-44
Author(s):  
Larry Schweikart ◽  
Lynne Pierson Doti
Keyword(s):  
West Coast ◽  
Financial Sector ◽  
Gold Rush ◽  
Test Case ◽  
The West ◽  
Branch Banking

In Gold Rush–era California, banking and the financial sector evolved in often distinctive ways because of the Gold Rush economy. More importantly, the abundance of gold on the West Coast provided an interesting test case for some of the critical economic arguments of the day, especially for those deriving from the descending—but still powerful—positions of the “hard money” Jacksonians.

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