Results 81 to 90 of about 50,329 (326)
Sex-change chemicals and their influence on the brain. [PDF]
, 2001 The potential for man-made chemicals to mimic or antagonise natural hormones is a controversial issue, but one for which increasing amounts of evidence are being gathered worldwide.
Harris, CA
core +3 more sources
Australian Veterinary Journal, EarlyView.Barramundi (Lates calcarifer) is an economically significant aquaculture species and ranks among Australia's top five farmed finfish. As global production intensifies, understanding the physiology and health of barramundi is essential to support animal welfare and industry profitability.
CY(V) Pang, N Courtman, F Samsing
wiley +1 more source
Gravel galore: Impacts of clear-cut logging on salmon and their habitats [PDF]
, 2002 Timber harvest may have both direct and indirect effects on salmon, and with a few exceptions those effects result in lowered survival of salmon in their stream habitats compared with unlogged forest (Hicks et al. 1991b).
Hicks, Brendan J.
core +1 more source
Conservation Biology, EarlyView.Abstract In the western United States, conservation practitioners are increasingly working with private landowners to restore habitat for North American beavers (Castor canadensis) and to use nonlethal mitigation techniques when beavers damage crops and infrastructure.
Brian D. Erickson, Megan S. Jones
wiley +1 more source
Genomic Resources for Immunology and Disease of Salmonid and Non-Salmonid Fish
Reviews in Fisheries Science, 2008 13 páginas, 3 tablas The development of aquaculture has increased interest in infectious diseases of fish due to the economic losses in fish farms. Although there are successful vaccines against bacteria, therapeutic treatments for viral diseases have yet to be established.
Dios, Sonia +4 more
openaire +3 more sources
Using structured decision making to evaluate the tradeoffs of selective fish passage
Conservation Science and Practice, EarlyView.Abstract Dams have dramatically altered rivers and are a major contributor to native fish population declines. However, many dams serve important ecological, social, and economic functions, such as flood control, invasive species control, and provision of recreational opportunities.
Shane Flinn +2 more
wiley +1 more source
AnimalsThis study evaluated the effects of different total suspended solid (SST) levels (0, 250 and 350 mg L−1) on the productive performance, intestinal condition and antioxidant enzyme activity of rainbow trout (Oncorhynchus mykiss) fry reared in a biofloc ...
Fernanda Regina Delziovo +7 more
doaj +1 more source
Central area redd project [Ribble, Hodder and Lune catchments] [PDF]
, 2000 Redd counting is an integral part of most Fishery Officers duties. The number and distribution of salmonid redds throughout salmonid catchments provides invaluable information on the range and extent of spawning by both salmon and sea trout.
Lewis, J.
core
Fish and Fisheries, EarlyView.ABSTRACT Hatcheries and stocking programmes have long been a cornerstone of fisheries management, seen as tools for fisheries enhancement and/or conservation of threatened populations. Their use draws controversy, however, from a growing body of research over the last 50 years suggesting that stocking can have negative consequences for wild stocks, and
Hannah L. Harrison +15 more
wiley +1 more source
The River Lune strategic stock assessment survey 1991 with particular reference to salmonids [PDF]
, 1992 In the past stock assessment surveys were generally reactive in response to a particular problem e.g. a pollution incident and as such were limited in the information they provided.
Aprahamian, M.W., Farooqi, M.A.
core