Shark Interactions With Directed and Incidental Fisheries in the Northeast Pacific Ocean: Historic and Current Encounters, and Challenges for Shark Conservation

King, Jacquelynne R.; McFarlane, Gordon A.; Gertseva, Vladlena V.; Gasper, Jason R.; Matson, Sean E.; Tribuzio, Cindy A.

doi:10.1016/bs.amb.2017.09.003

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…Over the study period, English sole density has remained relatively stable, but other required hosts may have declined. There are few top predators of adult English sole, one being the bluntnose sixgill shark (Hexanchus griseus); fishing of this shark has been prohibited since 2001 because the species is data deficient and population information is scarce (King et al 2017). Therefore, top-down control of parasites that use English sole as an intermediate host may be occurring due to increased predation.…”

Section: Discussionmentioning

confidence: 99%

Parasites of the past: 90 years of change in parasitism for English sole

Welicky

Preisser

Leslie

et al. 2021

Frontiers in Ecol & Environ

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Historical data are extremely rare but essential for ascertaining whether contemporary infectious disease burdens are unusual. Natural history collections are a valuable source of such data, especially for reconstructing long timelines of parasite abundance. We quantified the parasites of 109 museum specimens of English sole (Parophrys vetulus), an economically important flatfish, collected from Puget Sound, Washington, over a 90-year period (1930-2019). We counted nearly 2,500 individual parasites representing 23 distinct species/morphotypes and four broad taxonomic groupings. Of the 12 taxa that were prevalent enough to include in the analysis, nine did not change in abundance over time, two (an acanthocephalan and a trematode) decreased, and one (another trematode) increased. By broad taxonomic grouping, nematodes, trematodes, and leeches exhibited no change over time, whereas acanthocephalans declined significantly. The diverging patterns among parasite taxa suggest a double-edged sword of responses to long-term ocean change: some parasites might be on the rise, while others are declining.

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Section: Discussionmentioning

confidence: 99%

Parasites of the past: 90 years of change in parasitism for English sole

Welicky

Preisser

Leslie

et al. 2021

Frontiers in Ecol & Environ

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“…Interestingly, there has never been a domestic commercial market for dogfish meat in BC (King et al, 2017). One seafood market owner told the authors he was pretty sure that no Canadian has ever eaten shark meat (though with the caveat that, as discussed in Supporting…”

Section: Daily-colonist 2 April 1967mentioning

confidence: 99%

“…Interestingly, there has never been a domestic commercial market for dogfish meat in BC (King et al ., 2017). One seafood market owner told the authors he was pretty sure that no Canadian has ever eaten shark meat (though with the caveat that, as discussed in Supporting information, there are long‐standing Indigenous fisheries for dogfish), One interviewee involved in sustainable seafood management reported that 80% of the seafood catch in BC is exported, and that 90% of the seafood consumed in BC is imported, and that although at one time a local market had expressed interest in selling dogfish belly flaps, it “ may have disappeared ” since.…”

Section: Introductionmentioning

confidence: 99%

“A prized Pacific shark”: the rise and fall (and rise again…?) of the world's first ecolabel certified sustainable shark fishery

Shiffman

Bangley

Macdonald

2023

Journal of Fish Biology

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There is intense public interest surrounding the conservation and management of sharks, including a debate over whether sustainable shark fisheries are possible or fishing bans on sharks are needed to conserve these animals. An important but rarely discussed data point in discussions of global shark fisheries is the case of British Columbia's fishery for Pacific spiny dogfish, Squalus suckleyi, which in 2011 became the first Marine Stewardship Council−certified shark fishery anywhere in the world. A few years later, despite reportedly healthy local stocks and thriving global markets for this shark, the fishery voluntarily withdrew its MSC certification, and in recent years more than 95% of the quota for Pacific spiny dogfish has been left in the water. This study provides insight into what happened to this fishery through a review of grey literature and a series of stakeholder interviews with British Columbian fishermen, fish processors, managers and environmentalists. It is a rare case study of a fishery that largely ceased operations without a clear mechanistic explanation like a stock collapse, a government mandate to limit fishing or a clear shift in market demand. This fishery appears to have been affected by the combination of several factors, including a temporary reduction in biomass due to oceanographic effects, potential blowback from overly broad environmental messaging that did not distinguish between sustainable and unsustainable shark fisheries, management changes resulting in altered fishing incentives and changes to processing capacity associated with consolidating the fishing industry into ownership by relatively few large companies.

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