Limnological Methods |
Contents
HYDROGRAPHIC MAPPING AND MORPHOMETRY | 1 |
Shoreline Surveys of Lakes | 3 |
Soundings | 25 |
Copyright | |
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accuracy alidade angle apparatus attached base line boat bottom materials brass bucket cable centrifuge color computed concentrate Considerations construction convenient counting cell CRUZ The University depth described desired determined diameter disk dredge edge equipment error field filter funnel glass tube graduated horizontal instrument intervals lake length limnological limnologist located lower end magnetic bearing mark measure mesh metal meter method micrometer microscope necessary Negretti and Zambra ocular ocular micrometer operator oxygen paper periphyton phenolphthalein pipet Pitot tube plane table planimeter plankters plankton Procedure proper protractor reading record ring rope sampler sand scale distance screen secured selected sextant shore line shore-line side sieve signal sodium thiosulfate square stadia rod standard stratum stream submerged suitable surface survey tape temperature thermometer tion transit station transverse measurements turbidimeter turbidity unit University Library UNIVERSITY velocity vertical volume weight wire