Protection of
The Protection of Fresh-Water Mussels
作者：Coker, R. E. (Robert Ervin), 1876-1967
体例：题 章数：32
字数：48,407 来源：Project Gutenberg
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cache/epub/43177/pg43177.txt（Project Gutenberg）
章节目录
共 32 题- HUGH M. SMITH, Commissioner
- Bureau of Fisheries Document No. 793
- THE PROTECTION OF FRESH-WATER MUSSELS
- Bureau of Fisheries Document No. 793
- CONTENTS.
- THE PROTECTION OF FRESH-WATER MUSSELS.
- PRESENT CONDITIONS.
- THE MUSSEL INDUSTRY.
- DEPLETION OF THE RESOURCES.
- THE INTERESTS OF THE COMMUNITY.
- ARTIFICIAL PROPAGATION OF MUSSELS BY THE GOVERNMENT
- ESTABLISHMENT OF PROPAGATION.
- RESULTS DEPENDENT UPON PROTECTION.
- PROTECTION.
- ESSENTIAL CONSIDERATIONS FOR EFFECTIVE LEGISLATION.
- EXAMINATION OF PROTECTIVE MEASURES.
- TWO MEASURES FOR IMMEDIATE APPLICATION.
- MEASURES NOT SUITED TO EXISTING CONDITIONS.
- SIZE LIMIT--NECESSITY AND APPLICATION.
- EXHAUSTIVE NATURE OF THE FISHERY.
- LARGER SHELLS MARKETED AND ADVANTAGEOUSLY USED.
- WASTE ILLUSTRATED.
- SIZE LIMIT IN RELATION TO ECONOMY.
- REASONS FOR THE PROPOSED 2-INCH LIMIT.
- DETAILS ESSENTIAL TO EFFECTIVE LEGISLATION.
- CLOSED REGIONS--NECESSITY AND APPLICATION.
- INJURY TO SPAWNING MUSSELS AND TO YOUNG.
- CONSIDERATIONS DETERMINING SIZE OF CLOSED REGIONS.
- PRACTICABLE DIVISION OF RIVER SYSTEMS ILLUSTRATED.
- PROCEDURE FOR ESTABLISHING CLOSED REGIONS.
- ENFORCEMENT OF THE LAW.
- SUMMARY OF RECOMMENDED LEGISLATION.