Quantitative analysis of mass mortality events in salmon aquaculture shows increasing scale of fish loss events around the world.

Globally, salmon aquaculture promises to contribute to sustainable sources of animal protein for a growing human population. However, the growth of the industry also includes increased reports of mass mortality events-disaster events where large numbers of fish die in short periods of time. As salmon production increases in scale and more technology is used to grow salmon in contexts otherwise not suited for them, there is a possibility for more frequent and more severe mortality events. Despite investigations into specific cases of mass mortality events-no global study has been conducted to see if large scale mortality is increasing in frequency and scale. Using a global dataset of publicly available and government-collated data on salmon mortality events including nations responsible for the majority of salmon aquaculture, we document trends in mortality events, showing that in some of the major salmon producing nations of the world (in particular Norway, Canada, and the UK), mass mortality events have increased in frequency from 2012 to 2022. We also show that the scope of mass mortality events has increased over time-that is, the upper bound of how many fish were killed in a specific mortality event has increased over time. Finally, the expected maximum size of a mass mortality event differs from country to country, but is likely much larger than site and jurisdictional thresholds of concern for animal welfare, early warning thresholds, and capacity to respond to mortality events. The consequences of the increased scale and scope of mass mortality events extend past aquaculture production to include severe consequences to aquaculture companies and to coastal communities who depend on aquaculture. Our results agree with predictions of the concept of "manufactured risk", which suggests that risk emerges from the aggressive use of technology to optimize production in variable environments, and we argue that there is a need for more fine-scale and standard data collection on salmon mortality events, and that future investigations into salmon aquaculture should increase focus on disaster potential and realization.

Low incidence of plastic ingestion among three fish species significant for human consumption on the island of Newfoundland, Canada.

This study reports the first baselines of plastic ingestion for three fish species that are common commercial and sustenance food fish in Newfoundland. Species collections occurred between 2015 and 2016 for Atlantic cod (Gadus morhua), Atlantic salmon (Salmo salar), and capelin (Mallotus villosus). The frequency of occurrence (%FO) of plastic ingestion for both Atlantic salmon (n = 69) and capelin (n = 350) was 0%. Of the 1010 Atlantic cod individuals collected over two years, 17 individuals had ingested plastics, a %FO of 1.68%. This is the only multi-year investigation of plastic ingestion in Atlantic cod for the Northwest Atlantic, and the first baseline of plastic ingestion in Atlantic salmon and capelin on the island of Newfoundland. Considering the ecological, economic, and cultural importance of these fish species, this study is the beginning of a longitudinal study of plastic ingestion to detect any future changes in contamination levels.

Understanding ethno-cultural differences in cardiac medication adherence behavior: a Canadian study.

BACKGROUND: There are ethno-cultural differences in cardiac patients' adherence to medications. It is unclear why this occurs. We thus aimed to generate an in-depth understanding about the decision-making process and potential ethno-cultural differences, of white, Chinese, and south Asian cardiac patients when making the decision to adhere to a medication regimen. METHODS: A hierarchical descriptive decision-model was generated based on previous qualitative work, pilot tested, and revised to be more parsimonious. The final model was examined using a novel group of 286 cardiac patients, using their self-reported adherence as the reference. Thereafter, each node was examined to identify decision-making constructs that might be more applicable to white, Chinese or south Asian groups. RESULTS: Non-adherent south Asians were most likely to identify a lack of receipt of detailed medication information, and less confidence and trust in the health care system and health care professionals. Both Chinese and south Asian participants were less likely to be adherent when they had doubts about western medicine (eg, the effects and safety of the medication). Being able to afford the cost of medications was associated with increased adherence. Being away from home reduced the likelihood of adherence in each group. The overall model had 67.1% concordance with the participants' initial self-reported adherence, largely due to participants' overreporting adherence. CONCLUSION: These identified elements of the decision-making process are generally not considered in traditionally used medication adherence questionnaires. Importantly these elements are modifiable and ought to be the focus of both interventions and measurement of medication adherence.

Low plastic ingestion rate in Atlantic cod (Gadus morhua) from Newfoundland destined for human consumption collected through citizen science methods.

Marine microplastics are a contaminant of concern because their small size allows ingestion by a wide range of marine life. Using citizen science during the Newfoundland recreational cod fishery, we sampled 205 Atlantic cod (Gadus morhua) destined for human consumption and found that 5 had eaten plastic, an ingestion prevalence rate of 2.4%. This ingestion rate for Atlantic cod is the second lowest recorded rate in the reviewed published literature (the lowest is 1.4%), and the lowest for any fish in the North Atlantic. This is the first report for plastic ingestion in fish in Newfoundland, Canada, a province dependent on fish for sustenance and livelihoods.

Implications of design on infection prevention and control practice in a novel hospital unit: the Medical Ward of the 21st Century.

The physical design of hospital wards is associated with transmission of pathogenic organisms and hospital-acquired infections. A novel hospital unit, the Medical Ward of the 21st Century (W21C), optimizes features for infection prevention and control practices. Ethnographic research on the W21C versus conventional hospital wards examined the experiential and behavioural elements of the different designs. Three recurring themes emerged regarding the design features on the W21C and included visual cues, 'having a place for things', and less sharing of spaces and materials. Observational data of healthcare worker practices demonstrated significantly higher compliance with hand hygiene opportunities on the W21C compared with older hospital units. These findings suggest how the physical design of a hospital ward may enhance infection prevention and control practices.

The influence of ethnicity and gender on navigating an acute coronary syndrome event.

BACKGROUND: Ethnicity and gender may influence acute coronary syndrome patients recognizing symptoms and making the decision to seek care. OBJECTIVE: To examine these potential differences in European (Caucasian), Chinese and South Asian acute coronary syndrome patients. METHODS: In-depth interviews were conducted with 20 European (Caucasian: 10 men/10 women), 18 Chinese (10 men/eight women) and 19 South Asian (10 men/nine women) participants who were purposively sampled from those participating in a large cohort study focused on acute coronary syndrome. Analysis of transcribed interviews was undertaken using constant comparative methods. RESULTS: Participants followed the process of: having symptoms; waiting/denying; justifying; disclosing/ discovering; acquiescing; taking action. The core category was 'navigating the experience'. Certain elements of this process were in the forefront, depending on participants' ethnicity and/or gender. For example, concerns regarding language barriers and being a burden to others varied by ethnicity. Women's tendency to feel responsibility to their home and family negatively impacted the timeliness in their decisions to seek care. Men tended to disclose their symptoms to receive help, whereas women often waited for their symptoms to be discovered by others. Finally, the thinking that symptoms were 'not-urgent' or something over which they had no control and concern regarding potential costs to others were more prominent for Chinese and South Asian participants. CONCLUSION: Ethnic- and gender-based differences suggest that education and support, regarding navigation of acute coronary syndrome and access to care, be specifically targeted to ethnic communities.

Weight and patients' decision to undergo cardiac surgery.

Obese patients are less likely to have cardiac surgery than normal weight patients. This could be due to physician or patient decision-making. We undertook a qualitative descriptive study to explore the influence of obesity on patients' decision-making to have cardiac surgery. Forty-seven people referred for coronary artery bypass graft (CABG) surgery were theoretically sampled. Twelve people had declined cardiac surgery. Participants underwent in-depth interviews aimed at exploring their decision-making process. Data were analyzed using conventional content analysis. Though patients' weight did not play a role in their decision, their relationship with their cardiologist/surgeon, the rapidity and orchestration of the diagnosis and treatment, appraisal of risks and benefits, previous experience with other illness or others who had cardiac surgery, and openness to other alternatives had an impact. It is possible that there is a lack of comfort or acknowledgment by all parties in discussing the influence of weight on CABG surgery risks.

Biosecurity's unruly spaces.

This paper is about the geopolitics of animal health governance. Through a biosecurity event in South Africa's pig sector we examine changes in the way the governance of disease risk is configuring intra-national spaces. Our case suggests an emerging geopolitics of animal health, one that is defined not by differences between nations but by a more complex patchwork of 'secure' and 'unruly spaces'.

Understanding nursing on an acute stroke unit: perceptions of space, time and interprofessional practice.

AIM: This paper is a report of a study conducted to uncover nurses' perceptions of the contexts of caring for acute stroke survivors. BACKGROUND: Nurses coordinate and organize care and continue the rehabilitative role of physiotherapists, occupational therapists and social workers during evenings and at weekends. Healthcare professionals view the nursing role as essential, but are uncertain about its nature. METHOD: Ethnographic fieldwork was carried out in 2006 on a stroke unit in Canada. Interviews with nine healthcare professionals, including nurses, complemented observations of 20 healthcare professionals during patient care, team meetings and daily interactions. Analysis methods included ethnographic coding of field notes and interview transcripts. FINDINGS: Three local domains frame how nurses understand challenges in organizing stroke care: 1) space, 2) time and 3) interprofessional practice. Structural factors force nurses to work in exceptionally close quarters. Time constraints compel them to find novel ways of providing care. Moreover, sharing of information with other members of the team enhances relationships and improves 'interprofessional collaboration'. The nurses believed that an interprofessional atmosphere is fundamental for collaborative stroke practice, despite working in a multiprofessional environment. CONCLUSION: Understanding how care providers conceive of and respond to space, time and interprofessionalism has the potential to improve acute stroke care. Future research focusing on nurses and other professionals as members of interprofessional teams could help inform stroke care to enhance poststroke outcomes.

Gender-based challenges faced by older Sikh women as immigrants: recognizing and acting on the risk of coronary artery disease.

Gender and ethnocultural affiliation can influence people's health beliefs and their ability to make behavioural changes associated with risk reduction. The authors undertook a series of grounded theory studies aimed at describing and explaining how gender and ethnocultural affiliation influence the process that people undergo when faced with the need to make behavioural changes to reduce the risk of coronary artery disease (CAD). Here, they describe the gender-based influences associated with managing CAD risk in a small sample of older Sikh immigrants to Canada. Data were collected through semi-structured interviews, using an interpreter when necessary. Interviews were audiotaped to enable verification of interpretation and transcription. Data were analyzed using constant comparative methods. The core variable that emerged in the series of studies was "meeting the challenge." The process of managing CAD risk included pre-diagnosis or event, liminal or changing self, and living with CAD. Intra-, inter-, and extrapersonal factors as well as sociodemographic characteristics influenced the participants' ability to meet the challenge of managing CAD risk. Health-care providers and policy-makers have a responsibility to work with ethnocultural communities in order to (1) enhance the ability of health-care providers to provide ethnoculturally sensitive care, and (2) develop ethnoculturally relevant resources to enable health promotion and disease prevention. The ultimate aim is to improve health outcomes for Sikh immigrants as vulnerable members of society.

Medical innovation, unmet medical needs, and the drug pipeline.

This paper outlines and illustrates the working of a theoretical approach from the social sciences for analyzing medical innovation, unmet medical need, and the drug pipeline. Using the social history of three drugs made from recombinant DNA (insulin, human growth hormone, and tissue-plasminogen activator) the paper shows how drugs can be both technically and organizationally efficient while the needs they satisfy can be created or identified. The paper posits that drugs that require more organizational efficiency tend to satisfy identified, rather then created needs. Key words: Recombinant DNA, technical efficiency, organizational efficiency, anthropology.

Time and the structuring of ritual performance in the xenotransplantation debate.

Advancements in biotechnology provoke fundamental questions about the relationship of humans to the natural world. A crisis arises as the knowledge, practice, and policies concerning biotechnology grow further out of step with each other. This paper examines the role of ritual performance as a means of resolving this crisis, uniting the organic with the socio-moral aspects of science, technology and regulatory policy. Ritual performance is evident in the public discussions of the United States' Secretary's Advisory Committee on Xenotransplantation (SACX). In an attempt to understand the cultural responses to new knowledge, this paper examines the transcripts of several SACX meetings for its ritual elements and references to authority. We find that time is used by scientists to structure ritual performance in a way that guides public policy and attitudes toward xenotransplantation.

Accusations of genital theft: a case from northern Ghana.

Occurrences of panic attacks associated with belief in genital retraction have been described in the anthropological and psychological literature in terms of culture bound reactive syndromes. Similar phenomena occur widely in West Africa, where they are reported as cases of penis snatching. Explanations for these phenomena range from the biomedical emphasis on pathology to the social psychological emphasis on altered perceptual sets. This paper provides a narrative of an accusation of genital theft in a rural West African settlement. Drawing from ethnographic information, it will be argued that the case is best explained in light of social relations, definitions for in-groups and out-groups, and local knowledge concerning witchcraft and divination. Local explanations for the case conform to both biomedical and social psychological models.

Ethnocultural affiliation, gender, and cardiovascular disease risk management.

Cardiovascular disease (CVD) is a major cause of morbidity and mortality in North America. Making behavioural changes following a diagnosis of CVD can attenuate the disease risk. Canada's population is composed of a growing mosaic of persons of various ethnic backgrounds. A person's ethnocultural affiliation and gender can influence the context, process and outcome of their decision-making about health related behaviours. Though several models exist to assist clinicians working with persons facing behavioural change, these models do not include ethnocultural affiliation and gender as fundamental components. The authors contend that ethnocultural affiliation and gender need to be central constructs in new investigations related to behavioural change and that decision-modeling methodology is a useful mechanism to do so.

The pipeline and the porcupine: alternate metaphors of the physician-industry relationship.

Industry and medicine share a complicated relationship that engenders a considerable degree of controversy. Although they share a relationship, industry and medicine have different perspectives toward their involvement with each other. Industry conceives of medicine as one aspect of the "drug pipeline", a larger set of relationships that is necessary for producing and marketing products. In contrast, select physicians refer to medicine's relationship with industry as "dancing with the porcupine", an inherently difficult and dangerous activity. This paper compares the "pipeline" and "porcupine" metaphors, and draws upon ethnographic data from fieldwork conducted among clinical neuroscientists at a Canadian medical school to further elucidate the perspectives of physicians toward industry and the nature of the physician-industry relationship. The paper argues that the physician-industry relationship is akin to a type of gift-exchange known as a total prestation, and that this form of total prestation is part of a strategy of capital reconversion.