Author: Henry Baldwin WardPublisher:
ISBN:
Category : Freshwater biology
Languages : en
Pages : 132
Book Description
A Biological Examination of Lake Michigan in the Traverse Bay Region
Author: Henry Baldwin WardPublisher:
ISBN:
Category : Freshwater biology
Languages : en
Pages : 132
Book Description
A Biological Examination of Lake Michigan in the Traverse Bay Region
Author: Henry Baldwin WardPublisher: Rarebooksclub.com
ISBN: 9781230148175
Category :
Languages : en
Pages : 48
Book Description
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896 edition. Excerpt: ...II. A. 1. in case migrations of large numbers of individuals occurred only vertically. This condition would yield equal volumes for equal bottom hauls but unequal volumes for some other equal hauls. b. Or arranged without reference to each other so that vertical columns of water of equal dimensions and extending from surface to bottom will usually contain unequal volumes of plankton in different parts of the lake. This would result from I. or II. A. 1, by migration of masses of individuals horizontally or obliquely. Such migrating masses may produce local accumulations of any conceivable form or size, such as spheres, sheets extending horizontally or vertically, etc. They are thus capable of producing a wide range of variation in the volume of the plankton from bottom and other hauls. The migrating masses may consist of all the species existing in the plankton and in the proportions in which they exist there--in which case the resulting local accumulations may be called plankton swarms; or they may consist of one or several species and might be called species swarms. Species swarms occurring in such way as to compensate one another would remain undetected by the volumetric method." The work of the first day with the vertical net was experimental, and does not show any uniformity in the number or depth of the various hauls at each station, as given in the table, page 32. They cannot be used for this reason in the comparative study of the strata. In all hauls thereafter distinguished a number of artificial strata as follows: 1. A surface stratum from 2 m. to the surface. we 2. 3. 4. 5. 6. 7. An intermediate stratum from An An A deep A" A" 5 in. to 2 m. "10"" 5" "25" " 10" "50..".
A Biological Examination of Lake Michigan in the Traverse Bay Region
Author: Henry Baldwin WardPublisher: Sagwan Press
ISBN: 9781298960696
Category :
Languages : en
Pages : 124
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
A Biological Examination of Lake Michigan in the Traverse Bay Region
Author: Henry Baldwin WardPublisher:
ISBN:
Category : Freshwater biology
Languages : en
Pages : 126
Book Description
Temperatures of Lake Michigan, 1930-32
Author: John Van OostenPublisher:
ISBN:
Category : Fishes
Languages : en
Pages : 42
Book Description
The Quarterly Review of Biology
Author: Raymond PearlPublisher:
ISBN:
Category : Biology
Languages : en
Pages : 670
Book Description
Includes section "New biological books" and other bibliographies.
Publication - Michigan Geological and Biological Survey
Author: Michigan. Geological SurveyPublisher:
ISBN:
Category :
Languages : en
Pages : 244
Book Description
Special Scientific Report
Author: Northeastern Pacific Albacore Survey
Author: R. J. CallawayPublisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 700
Book Description
Observations obtained aboard the United States Fish and Wildlife Service research vessels Hugh M. Smith and John R. Manning during Operation NEPAS in 1957 and en route to and from Hawaii
Biological Series
Author: Michigan. Geological and Biological SurveyPublisher:
ISBN:
Category : Natural history
Languages : en
Pages : 244
Book Description