This monograph on the ecology of Atlantic white cedar wetlands is one of a series of U.S. Fish and WildlifeService profiles of important freshwater wetland ecosystems of the United States. The purpose of the profile is to describe the extent, components, functioning, history, and treatment of these wetlands. It is intended to provide a useful reference to relevant scientific information and a synthesis of the available literature.The world range of Atlantic white cedar (Chamaecyparis thyoides) is limited to a ribbon of freshwater wetlandswithin 200 km of the Atlantic and Gulf coasts of the United States, extending from mid-Maine to mid-Florida and Mississippi. Often in inaccessible sites and difficult to traverse, cedar wetlands contain distinctive suites of plant species. Highly valued as commercial timber since the early days of European colonization of the continent, the cedar and its habitat are rapidly disappearing.This profile describes the Atlantic white cedar and the bogs and swamps it dominates or codominates throughout its range, discussing interrelationships with other habitats, putative origins and migration patterns, substrate biogeochemistry, associated plant and animal species (with attention to those that are rare, endangered, or threatened regionally or nationally), and impacts of both natural and anthropogenic disturbance. Research needs for each area are outlined. Chapters are devoted to the practices and problems of harvest and management, and to an examination of a large preserve recently acquired by the USFWS, theAlligator River National Wildlife Refuge in North Carolina.

Three genetically distinct groups: British Columbia to northern California, Southern California to the northern Baja peninsula, and central and southern Baja California. (PDF contains 21 pages)

This report wi11 focus largely on the subordersGammaridea, Caprellidea, and Hyperiidea because of their importance in coastal areas of the northeast Pacific Ocean. (PDF contains 27 pages)

This profile covers life historyand environmental requirements ofboth alewife (Alosa pseudoharengus)and blueback herring (Alosa aestivalis),since their distribution isoverlapping and their morphology,ecological role, and environmentalrequirements are similar.The alewife isan anadromous species found inriverine, estuarine, and Atlanticcoastal habitats, depending onlife cycle stage, from Newfoundland(Winters et al. 1973) toSoutn Carolina (Berry 1964).Landlocked populations are i n theGreat Lakes, Finger Lakes, andmany other freshwater lakes(Bigelow and Sch roeder 1953;Scott and Crossman 1973). Theblueback herring is an anadromousspecies found in riverine,estuarine, and Atlantic coastalhabitats, depending on life stagecycle, from Nova Scotia to theSt. Johns River, Florida (Hildebrand1963)

This report covers the upper coast of west-central Florida. This region includes the drainage basins and nearshore waters of the west coast of Florida between, but not including, the Anclote River basin and the Suwannee River basin. The name Springs Coast wash chosen because this area contains a multitude of springs, both named and too small or inaccessible to have been names. Much of the area is karstic limestone. Most recognizable among the springs are the famous Crystal river, Weeki Wachee, and Homosassa. This territory includes large expanses ofmarsh and wetland and, along its shores, the southern end of the largest area of seagrass beds in the state -- the Florida Big Bend Seagrass Beds preserve. It also possesses numerous spring-fed rivers and streams along the coast, whose constant discharges provide unique, relatively stable estuarine environments. This document is a summary of the availableinformation on the Springs Coast area of Florida, foruse by planners, developers, regulatory authorities,and other interested parties. An understanding of thefactors affecting their plans and the possibly unexpectedimpacts of their actions on others will, it ishoped, promote intelligent development in areascapable of supporting it. We have tried to provide aclear, coherent picture of what is currently knownabout how the physical, chemical, and biologicalfactors of the environment interact. (343 pp.)