4,377 research outputs found
The efficacy of emamectin benzoate against infestations of Lepeophtheirus salmonis on farmed Atlantic salmon (Salmo salar L) in Scotland, 2002-2006
No full textInfestations of the parasitic copepod Lepeophtheirus salmonis, commonly referred to as sea lice, represent a major challenge to commercial salmon aquaculture. Dependence on a limited number of theraputants to control such infestations has led to concerns of reduced sensitivity in some sea lice populations. This study investigates trends in the efficacy of the in-feed treatment emamectin benzoate in Scotland, the active ingredient most widely used across all salmon producing regions. Study data were drawn from over 50 commercial Atlantic salmon farms on the west coast of Scotland between 2002 and 2006. An epi-informatics approach was adopted whereby available farm records, descriptive epidemiological summaries and statistical linear modelling methods were used to identify factors that significantly affect sea lice abundance following treatment with emamectin benzoate (SLICEH, Schering Plough Animal Health). The results show that although sea lice infestations are reduced following the application of emamectin benzoate, not all treatments are effective. Specifically there is evidence of variation across geographical regions and a reduction in efficacy over time. Reduced sensitivity and potential resistance to currently available medicines are constant threats to maintaining control of sea lice populations on Atlantic salmon farms. There is a need for on-going monitoring of emamectin benzoate treatment efficacy together with reasons for any apparent reduction in performance. In addition, strategic rotation of medicines should be encouraged and empirical evidence for the benefit of such strategies more fully evaluated
Buyer and Seller Responses to an Adverse Food Safety Event: The Case of Frozen Salmon in Alberta
No full textFish is a low-fat protein source high in omega-3 fatty acids, but in 2004 consumers also heard that farmed salmon had high levels of polychlorinated biphenyl (PCBs). This research evaluated how Canadian consumers and processors reacted to the conflicting health messages. Demand estimates and time-series analysis of 2001-2006 frozen meat scanner data in Alberta, Canada show a significant drop in salmon expenditure share following the PCB finding. The industry responded by launching low-priced wild salmon products, which contributed to significant demand expansion. The analysis illustrates how a food safety threat was averted and even served as a catalyst for growth.salmon, scanner data, food safety, demand, directed acyclic graphs, Demand and Price Analysis, Food Consumption/Nutrition/Food Safety, Research Methods/ Statistical Methods, Q10, Q11, Q16, Q22,
Air Pollution in New Zealand
No full textThis chapter is included in the book Environmental Law in New Zealand, edited by Peter Salmon and David Grinlinton. The author considers the regulation of localised air pollution in New Zealand by the Resource Management Act 1991 (RMA). The chapter places particular emphasis upon the role of the RMA in controlling the emission of ozone-depleting and greenhouse gases, and the effectiveness of the RMA in this context
Air Pollution in New Zealand
No full textThis chapter is included in the book Environmental Law in New Zealand, edited by Peter Salmon and David Grinlinton. The author considers the regulation of localised air pollution in New Zealand by the Resource Management Act 1991 (RMA). The chapter places particular emphasis upon the role of the RMA in controlling the emission of ozone-depleting and greenhouse gases, and the effectiveness of the RMA in this context
Bibliography of salmonids published in Japan (19): 2004
No full textThis current salmonid bibliography, distributed yearly since 1988, covers scientific publications in Japan. The former eighteen issues were published in Technical Reports of Hokkaido Salmon Hatchery (Fish and Eggs), No. 157-163, Scientific Reports of Hokkaido Salmon Hatchery, No. 49-50, and Bulletin of National Salmon Resources Center, No. 1-7. Titles are given in English for all articles. A reprint of article may be available from the author. An author's address is shown in square brackets following the citation. This 19h issue has covered literature published in 2004. The bibliography is divided into the following sections:articl
Bibliography of Salmonids published in Japan (16): 2001
No full textThis current salmonid bibliography, distributed yearly since 1988, covers scientific publications in Japan. The former thirteen issues were published in Technical Reports of Hokkaido Salmon Hatchery (Fish and Eggs), No. 157-163, Scientific Reports of Hokkaido Salmon Hatchery, No. 49-50, and Bulletin of National Salmon Resources Center, No. 1-4. Titles are given in English for all articles. A reprint of article may be available from the author. An author's address is shown in square brackets following the citation. This 16th issue has covered literature published in 2001. The bibliography is divided into the following sections:articl
Salmon: why bother?
No full textOregonions from diverse backgrounds share their concerns about the Northwest and the role of salmon in the past and its place in our future.an Oregon Sea Grant production.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Jennifer Gilden, videographer and editor ; executive producer, Joseph Cone.Participants: Jay Nicholas, project leader, Oregon Salmon Plan; Anne Donnelly, executive director, Coos Watershed Association; David Bayles, conservation director, Pacific Rivers Council; Frank Babcok, private landowner, Coos watershed; Elizabeth Woody, author and poet, Confederated Tribes of Warm Springs; Johnny Sundstrum, chair, Siuslaw Soil & Water Conservation District.Electronic reproduction. 2018.Mode of access: Internet from the Oregon Government Publications Collection.In English
Bibliography of Salmonids published in Japan (17)
No full textThis current salmonid bibliography, distributed yearly since 1988, covers scientific publications in Japan. The former sixteen issues were published in Technical Reports of Hokkaido Salmon Hatchery (Fish and Eggs), No. 157-163, Scientific Reports of Hokkaido Salmon Hatchery, No. 49-50, and Bulletin of National Salmon Resources Center, No. 1-5. Titles are given in English for all articles. A reprint of article may be available from the author. An author's address is shown in square brackets following the citation. This 17th issue has covered literature published in 2002. The bibliography is divided into the following sections:articl
Bibliography of Salmonids published in Japan (15): 2000
No full textThis current salmonid bibliography, distributed yearly since 1988, covers scientific publications in Japan. The former thirteen issues were published in Technical Reports of Hokkaido Salmon Hatchery (Fish and Eggs), No. 157-163, Scientific Reports of Hokkaido Salmon Hatchery, No. 49-50, and Bulletin of National Salmon Resources Center, No. 1-3. Titles are given in English for all articles. A reprint of article may be available from the author. An author's address is shown in square brackets following the citation. This 15th issue has covered literature published in 2000. The bibliography is divided into the following sections:articl
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