The Role of Embayments and Nearshore Habitats of Lake Ontario as Nursery Grounds for Young-of-the-year Alewives Alosa Psedoharengus and Other Species
Author: Robert Allan Klumb
Publisher:
Published: 2003
Total Pages: 530
ISBN-13:
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Author: Robert Allan Klumb
Publisher:
Published: 2003
Total Pages: 530
ISBN-13:
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Publisher:
Published: 2006
Total Pages: 488
ISBN-13:
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Publisher:
Published: 2003
Total Pages: 812
ISBN-13:
DOWNLOAD EBOOKAuthor: Victor Ernest Shelford
Publisher:
Published: 1913
Total Pages: 390
ISBN-13:
DOWNLOAD EBOOKAuthor: Walter Koelz
Publisher:
Published: 1929
Total Pages: 382
ISBN-13:
DOWNLOAD EBOOKAuthor: Mark P. Ebener
Publisher:
Published: 2006
Total Pages: 36
ISBN-13:
DOWNLOAD EBOOKThis document augments the dichotomous key crated by Ebener et al. (2003) with photographs taken during the 2002 and 2003 workshops, and it is intended to help fishery agencies implement the King and Edsall (1979) protocol for classifying sea lamprey marks. Their illustrations represented the "idealized" types and stages of sea lamprey marks in comparison with the more complicated marks often observed in the field. We combined the original King and Edsall (1979) photographic illustrations with photographs made at the five workshops to create this sequel to the 1979 field guide.
Author:
Publisher:
Published: 1996
Total Pages: 80
ISBN-13:
DOWNLOAD EBOOKAuthor: Vincent Frank Zelazny
Publisher:
Published: 2007
Total Pages: 359
ISBN-13: 9781553962052
DOWNLOAD EBOOKOur Landscape Heritage provides an overview of the history and ecological makeup of the landscapes of New Brunswick to help ecological seekers starting out with basic knowledge about geology, soils, climate, and vegetation, to better understand why plants and animals are today distributed as they are. Part I outlines the rationale and history of ecological land classification (ELC) in New Brunswick, and presents basic scientific concepts and facts that help the reader to interpret the information that follows. Part II, Portrait of New Brunswick Ecoregions and Ecodistricts presents a detailed look at the variety and distribution of ecosystems across the geographic expanse of New Brunswick. Each of the seven chapters of Part II provides a high level description of the ecoregion, followed by detailed descriptions of each ecodistrict within the ecoregion.--Includes text from document.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
Published: 2001
Total Pages: 180
ISBN-13: 9789251046944
DOWNLOAD EBOOKThe importance of free longitudinal passage of river fauna is stressed.
Author: Margaret F. Docker
Publisher: Springer
Published: 2019-06-03
Total Pages: 590
ISBN-13: 9402416846
DOWNLOAD EBOOKThis book, published in two volumes, provides the most comprehensive review of lamprey biology since Hardisty and Potter’s “The Biology of Lampreys” published more than 30 years ago. This second volume offers a synthesis of topics related to the lamprey gonad (e.g., lamprey sex ratios, sex determination and sex differentiation, sexual maturation, and sex steroids), the artifical propagation of lampreys, post-metamorphic feeding and the evolution of alternative feeding and migratory types, the history and status of sea lamprey control in the Laurentian Great Lakes and Lake Champlain, and an overview of contributions of lamprey developmental studies for understanding vertebrate evolution.