Canadian Seafood Research Articles

Vague labelling laws and outdated fish naming lists undermine seafood market transparency in Canada

Despite the expressed interest of Canadians in sustainable and comprehensively labelled seafood, the country’s seafood labelling requirements remain scant and naming conventions in the Canadian Food Inspection Agency (CFIA) ‘fish list’ allow the grouping of multiple species under single ‘umbrella’ terms. Here, we test the extent to which CFIA listings reflect current market availability and conceal biodiversity, using the flatfishes as a model. Accordingly, we compared CFIA-listed flatfish species with those documented in Canadian import records, those in production records of Canada and its flatfish suppliers, as well as those identified in DNA-based market surveys conducted across Canada. Of the 43 flatfish species on the CFIA list, only three have consistently shown up in Canadian imports, production records and market surveys, whereas almost a third (n = 15) failed to appear in any of the latter over at least a decade. Species have been detected on the market that are absent from this list, while overfished and/or threatened taxa have been found concealed under vague generic terms. The list’s many superfluous inclusions, outdated names, missing species and poor correspondence with trading partner’s naming conventions are inconsistent with the legal tenets of Canadian policy to uphold fair market practices and consumer choice, and instead result in a system inundated by numerous paths of misinterpretation, misclassification and substitution. Moreover, Canada’s official flatfish trade statistics lack sufficient taxonomic granularity to elucidate all species involved and track flatfish trade flows. Illuminating these loopholes should compel improvements in Canadian seafood labelling and traceability legislative frameworks.

EUROPEAN FISCAL RULES AS A LIABILITY IN THE TRANSATLANTIC TRADE CONFLICT: LESSONS FROM NiGEM SIMULATIONS

Under the Trump administration, a transatlantic trade conflict has been escalating step by step. First, it was about tariffs on steel and aluminium, then about retaliation for the French digital tax, which is suspended until the end of the year. Most recently, the US administration threatened the European Union with tariffs on cars and car parts because of Canadian seafood being subject to lower import duties. As simulations with NiGEM show, a further escalation of the transatlantic trade conflict has the potential to slow down economic growth significantly in the countries involved. This is a considerable risk given the fact that the countries have to cope with the enormous negative effects of the pandemic shock. Furthermore, the damage caused by the trade conflict depends on the extent to which the affected countries use fiscal policy to stabilise their economies.

Speciation analysis of inorganic and organic arsenic in Canadian seafoods by chemical separation and neutron activation

A new method consisting of methanol–methyl isobutyl ketone (MIBK)–water extraction and open-column cation exchange chromatography followed by HPLC was developed for the separation of total, residual, lipid-soluble, and five water soluble arsenic species including AsB, MMA, DMA, As(III), and As(V) in selected Canadian seafood samples. The mass fractions of arsenic were determined by neutron activation analysis with a detection limit of less than 20 µg kg−1. The method was validated by analyzing reference materials. The MIBK phase contained most of the lipid-soluble arsenic and indicated a linear relationship between the lipid content and lipid-soluble arsenic.

Migrant worker experiences in Atlantic Canadian fish processing plants

Low‐skilled migrant workers provide an important labour source in Atlantic Canada's seafood industry. This research unpacks the experiences of 22 workers from Thailand and the Philippines working in one Atlantic Canadian seafood processing company. We pay particular attention to migration routes, labour conditions, and worker mobility, along with worker reflections on their experiences landing a Canadian job. We also consider the perceptions of migrant workers among company staff. We argue that despite the various unfreedoms associated with migrant worker programs, migrant workers in this particular facility have demonstrated agency in negotiating the program to their advantages. The success of the workers, however, is contingent on a conjuncture of elements that are not necessarily found elsewhere in the seafood processing industry. Worker experiences, both with other Canadian employers and elsewhere, offer a stark contrast to their current situation: migrant workers often experience significant unfreedoms to gain relatively free working conditions.

Physicochemical characterization of Atlantic Canadian seafood processing plant effluent

The purpose of this study was to conduct a preliminary assessment of the potential impacts of Atlantic Canadian seafood processing effluents on the aquatic environment through physical-chemical characterization. Shellfish and finfish effluent samples were collected and characterized by biochemical oxygen demand (BOD5), chemical oxygen demand (COD), turbidity, total suspended solids (TSS), ammonia nitrogen (NH3-N), adsorbable organic halides (AOX), soluble BOD5 and soluble COD. Effluent concentration ranges were BOD5 (179 to 276mgL−1), COD (458 to 1717mgL−1), turbidity (28.8 to 88.3NTU), TSS (27.2 to 120.1mgL−1), NH3-N (1.5 to 12.9mgL−1) and AOX (3.2 and 0.4mgL−1) for flatfish and salmon processing effluents respectively, and cleanup shift AOX (3.5 and 0.5mgL−1). The characteristics of these effluents assessed have the potential to contaminate and degrade receiving water body environments. Improved performance may be possible with further treatment technology optimization on an effluent-specific basis.

Community engagement in seafood identification using DNA barcoding reveals market substitution in Canadian seafood

AbstractSeafood authenticity is a global concern. As seafood consumption increases, so does public awareness of the associated nutritional and environmental issues related to seafood mislabeling. Cases of substitution continue to be observed, even after the adoption of DNA barcoding as a regulatory tool by the Food and Drug Administration in the United States in 2011. Although media coverage of these cases has highlighted the incidence of fraud in Canada, more in-depth engagement of the public is lacking. By partnering with community members to conduct research, knowledge about the incidence and impact of seafood mislabeling can be directly communicated to consumers. In this study high school students and educators participated in a market survey using DNA barcoding to identify seafood. The Canadian Food Inspection Agency Fish List was used to determine if mislabeling had occurred. Twenty-three percent of samples surveyed were mislabeled, suggesting that the incidence of retail seafood mislabeling continues to be significant in Canada. Continued involvement of the public in market surveys will help to monitor trends in seafood mislabeling, and may help to increase awareness of potential seafood fraud.

The Impact of Animal Welfare Advertising on Opposition to the Canadian Seal Hunt and Willingness to Boycott the Canadian Seafood Industry

ABSTRACTThe purpose of this research was to measure and compare the initial and carryover effects of a video advertisement developed by an animal welfare organization, namely Harpseals. org. The ad was designed to educate the public about an egregious act against wildlife (i.e., the Canadian seal hunt), increase opposition to this act, and recruit participation to boycott the industry (i.e., the Canadian seafood industry). After initial opposition to the egregious act had been measured, respondents were exposed to the ad, and subsequently asked again about their opposition to the seal hunt as well as their willingness to join the Canadian Seafood Boycott. About two months later, a follow-up study investigated whether the respondents' opposition to the seal hunt and their participation in the Canadian Seafood Boycott were still affected by the advertisement to which they had been exposed during the first contact. The results show that respondents' level of opposition to the seal hunt—even though it had somewhat leveled off in two months—was still significantly higher (42% higher) than before respondents had been exposed to the advertisement. The results further show that the single exposure to the ad increased boycott participation from 3.1% (as measured in December 2010) to 13.8% (as reported in February/March 2011), an increase of 350%.

Evaluation of treatment options for Atlantic Canadian seafood processing plant effluent

The purpose of this study was to evaluate different effluent treatment options for Atlantic Canadian seafood processing plants. Bench-scale testing with a 25-mesh screen, sedimentation (SED), and dissolved air flotation (DAF) was conducted. Treatment by SED and DAF was successful in reducing contaminant concentrations with maximum observed percent reductions: biochemical oxygen demand, BOD5 (90%); chemical oxygen demand, COD (60%); turbidity (99%); total suspended solids, TSS (95%); and ammonia nitrogen, NH3-N (50%). Bench-scale 25-mesh screen runs for select effluent types showed poor reduction efficiencies and appeared to provide inadequate removal of contaminants. Sedimentation and DAF using alum were effective at removing solids but less effective at removing soluble effluent components. Improved performance may be possible with further treatment technology optimization on an effluent specific basis.

What motivates consumers to participate in boycotts: Lessons from the ongoing Canadian seafood boycott

Despite the tremendous growth in consumer boycotts, marketing has paid relatively little attention to consumer boycott motivations. Addressing this deficiency, this study uses netnography to investigate boycott motivations and perceived boycott participation costs by analyzing consumer comments submitted to an online boycott petition. The results show that boycott pledgees explicitly express their desire for the target to abolish its egregious behavior, their anger about the behavior in question, and their desire for punitive actions. Signatories also pledge participation for moral reasons and identify with the cause reflected by the boycott. Boycott motivations also include the belief that consumers have the power to impact the boycott target's bottom line and/or behavior as well as the belief that the boycott will succeed in forcing the target to cease its egregious behavior. Signatories, however, rarely refer to the costs of boycott participation.

Evaluation of treatment options for Atlantic Canadian seafood processing plant effluentA paper submitted to the Journal of Environmental Engineering and Science.

The purpose of this study was to evaluate different effluent treatment options for Atlantic Canadian seafood processing plants. Bench-scale testing with a 25-mesh screen, sedimentation (SED), and dissolved air flotation (DAF) was conducted. Treatment by SED and DAF was successful in reducing contaminant concentrations with maximum observed percent reductions: biochemical oxygen demand, BOD5 (90%); chemical oxygen demand, COD (60%); turbidity (99%); total suspended solids, TSS (95%); and ammonia nitrogen, NH3-N (50%). Bench-scale 25-mesh screen runs for select effluent types showed poor reduction efficiencies and appeared to provide inadequate removal of contaminants. Sedimentation and DAF using alum were effective at removing solids but less effective at removing soluble effluent components. Improved performance may be possible with further treatment technology optimization on an effluent specific basis.

Consumers on a Mission to Force a Change in Public Policy: A Qualitative Study of the Ongoing Canadian Seafood Boycott1

ABSTRACTNetnography (i.e., the online equivalent of ethnography) was used to analyze consumer boycott pledges submitted to an online boycott petition that was designed to recruit consumer participation in the contentious Canadian Seafood Boycott. The purpose was to investigate what motivates consumers to pledge boycott participation as well as to provide a preliminary understanding of boycott pledgees' psychographic makeup. The findings show that petition signatories are generally very angry about the Canadian Seal Hunt, pledge to boycott for a variety of objectives (instrumental, expressive, and punitive), abhor cruelty against animals, do not believe that it is acceptable to kill an animal for its fur, and worry about the environment in general. Many are very religious and quite a number believe that traditions that embrace animal cruelty need to be abolished. The findings further indicate that concern for animal welfare/rights has been moved into the mainstream.

Toxicology evaluation of Atlantic Canadian seafood processing plant effluent

The purpose of this study was to carry out an acute aquatic toxicity assessment on select effluent samples from Atlantic Canadian seafood processing plants. Raw effluent acute aquatic toxicity for the flatfish and salmon effluents was assessed using the acute lethality test and Microtox test. The effectiveness of dissolved air flotation treatment (DAF) in removing acute toxicity from these effluents was evaluated using the Microtox test. The salmon effluent failed the acute lethality test using rainbow trout while the flatfish effluent showed acute toxicity in the Microtox test with a 50% inhibiting concentration (IC(50)) of 38.84%. Subsequent treatment by DAF of the flatfish and salmon effluents increased IC(50) values by 20% and 26% respectively. The findings of this study indicate that all of the processing effluents sampled showed characteristics that could potentially degrade effluent receiving waters and acute toxicity was demonstrated in the two raw finfish effluents. Application of DAF treatment was successful in significantly increasing Microtox IC(50) values, thereby reducing acute toxicity, but failed to entirely remove acute toxicity.

Objective analysis of seafood quality

Abstract Canadian seafood quality has traditionally been examined by the subjective parameters of odor, color, flavor and appearance. Also, Canadian seafood products have most often been marketed on a one price system; products of high and mediocre quality being sold at the same price. A principal advantage of objective quality assessment is the ability to assign meaningful numerical scores to raw material and finished product, thus permitting adjustment of market prices and providing a cash incentive to fishermen, processors and retailers to maintain high quality standards. Development of rapid, inexpensive objective techniques for seafood quality evaluation has been the focus of research in our laboratories during the past several years. Rapid procedures for the analysis of amines, nucleotides and ammonia are presented and the applicability of each for the overall evaluation of seafood quality discussed.