scholarly journals ECONOMIC BENEFITS OF SPORT FISHING AND HUNTING NEAR IRRIGATION DEVELOPMENTS IN SOUTHERN ALBERTA

1995 ◽  
Vol 20 (3) ◽  
pp. 161-170 ◽  
Author(s):  
Rod B. McNaughton
Keyword(s):  
Economic Benefits ◽  
Sport Fishing ◽  
Southern Alberta

Economic Benefits of Sport Fishing and Angler Wildlife Watching in Pennsylvania

2001 ◽  
Vol 40 (1) ◽  
pp. 68-78 ◽  
Author(s):  
Arun Upneja ◽  
Elwood L. Shafer ◽  
Wonseok Seo ◽  
Jihwan Yoon
Keyword(s):  
Economic Benefits ◽  
Sport Fishing

Economic Benefits of Sport Fishing and Angler Wildlife Watching in Pennsylvania: A Comment

2002 ◽  
Vol 41 (2) ◽  
pp. 210-211 ◽  
Author(s):  
Roger H. Coupal ◽  
Chris T. Bastian ◽  
David T. Taylor
Keyword(s):  
Economic Benefits ◽  
Sport Fishing

scholarly journals Economic benefits of sport fishing in Los Cabos, Mexico: is the relative abundance a determinant?

2012 ◽  
Author(s):  
V. A. Hernández-Trejo ◽  
G. Ponce-Díaz Germán ◽  
D. Lluch-Belda ◽  
L. F. Beltrán-Morales
Keyword(s):  
Relative Abundance ◽  
Economic Benefits ◽  
Sport Fishing

scholarly journals Peacock bass mortality associated with catch-and-release sport fishing in the Negro River, Amazonas State, Brazil

2014 ◽  
Vol 44 (4) ◽  
pp. 527-532 ◽  
Author(s):  
Mario J. F. Thomé-Souza ◽  
Michael J. Maceina ◽  
Bruce R. Forsberg ◽  
Bruce G. Marshall ◽  
Álvaro L. Carvalho
Keyword(s):  
Confidence Intervals ◽  
Brazilian Amazon ◽  
Economic Benefits ◽  
Sport Fishing ◽  
Rural Regions ◽  
Catch And Release ◽  
Negro River ◽  
Amazonas State ◽  
Peacock Bass ◽  
River Fish

Sport fishing for peacock bass Cichla spp. in the Brazilian Amazon has increased in popularity and attracts anglers who generate significant economic benefits in rural regions. The sustainability of this fishery is partly dependent on the survival of fish caught through catch-and-release fishing. The objective of this work was to investigate, hooking mortality of Cichla spp., including speckled peacock bass (C. temensis Humbolt), butterfly peacock bass (C. orinocensis Humbolt), and popoca peacock bass (C. monoculus Agassiz) in the basin of the Negro River, the largest tributary of the Amazon River. Fish were caught at two different sites using artificial lures, transported to pens anchored in the river and monitored for 72 hours. A total of 162 individual peacock bass were captured and hooking mortality (mean % ± 95% confidence intervals) was calculated. Mean mortality was 3.5% (± 5.0), 2.3% (± 3.5) and 5.2% (± 10.2) for speckled peacock bass, butterfly peacock bass, and popoca peacock bass, respectively. Lengths of captured fish ranged from 26 to 79 cm (standard length), however, only fish under 42 cm died. This research suggests that catch-and-release sport fishing of peacock bass does not result in substantial mortality in the Negro River basin.

The ultrastructure of the double membrane-bound bodies and endoplasmic reticulum in serial sections of wheat spot mosaic-affected wheat plants

1990 ◽  
Vol 48 (3) ◽  
pp. 694-695
Author(s):  
M. H. Chen ◽  
C. Hiruki
Keyword(s):  
Endoplasmic Reticulum ◽  
High Resolution ◽  
Membrane Structure ◽  
Mosaic Disease ◽  
Serial Sections ◽  
Thin Sections ◽  
Double Membrane ◽  
Southern Alberta ◽  
Membrane Bound ◽  
Scanning Em

Wheat spot mosaic disease was first discovered in southern Alberta, Canada, in 1956. A hitherto unidentified disease-causing agent, transmitted by the eriophyid mite, caused chlorosis, stunting and finally severe necrosis resulting in the death of the affected plants. Double membrane-bound bodies (DMBB), 0.1-0.2 μm in diameter were found to be associated with the disease.Young tissues of leaf and root from 4-wk-old infected wheat plants were fixed, dehydrated, and embedded in Spurr’s resin. Serial sections were collected on slot copper grids and stained. The thin sections were then examined with a Hitachi H-7000 TEM at 75 kV. The membrane structure of the DMBBs was studied by numbering them individually and tracing along the sections to see any physical connection with endoplasmic reticulum (ER) membranes. For high resolution scanning EM, a modification of Tanaka’s method was used. The specimens were examined with a Hitachi Model S-570 SEM in its high resolution mode at 20 kV.

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