Relation between biological parameters of Pacific salmons of the genus Oncorhynchus and their population dynamics off the northeastern Kamchatka Peninsula

Гриценко, А. В.; Kharenko, E. N.

doi:10.1134/s0032945215030042

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Among the Pacific salmon, pink salmon have a unique 2-y life cycle between egg and spawning adult, and most stocks alternate in abundance between years; the majority are much more abundant in odd years than in even years (22,28). Overall, oddyear stocks are now over twice as abundant as they were in the 1970s (22,29). It has been argued since the mid-1990s that pink salmon have been having important negative effects on other resident species in the NP/BS through exploitative competition for common prey resources, on the structure of pelagic food webs, and on ecosystem function (30)(31)(32)(33)(34)(35)(36)(37)(38)(39).…”

Section: Significancementioning

confidence: 99%

Transhemispheric ecosystem disservices of pink salmon in a Pacific Ocean macrosystem

Springer

Vliet²,

Bool

et al. 2018

Proc. Natl. Acad. Sci. U.S.A.

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Pink salmon () in the North Pacific Ocean have flourished since the 1970s, with growth in wild populations augmented by rising hatchery production. As their abundance has grown, so too has evidence that they are having important effects on other species and on ocean ecosystems. In alternating years of high abundance, they can initiate pelagic trophic cascades in the northern North Pacific Ocean and Bering Sea and depress the availability of common prey resources of other species of salmon, resident seabirds, and other pelagic species. We now propose that the geographic scale of ecosystem disservices of pink salmon is far greater due to a 15,000-kilometer transhemispheric teleconnection in a Pacific Ocean macrosystem maintained by short-tailed shearwaters (), seabirds that migrate annually between their nesting grounds in the South Pacific Ocean and wintering grounds in the North Pacific Ocean. Over this century, the frequency and magnitude of mass mortalities of shearwaters as they arrive in Australia, and their abundance and productivity, have been related to the abundance of pink salmon. This has influenced human social, economic, and cultural traditions there, and has the potential to alter the role shearwaters play in insular terrestrial ecology. We can view the unique biennial pulses of pink salmon as a large, replicated, natural experiment that offers basin-scale opportunities to better learn how these ecosystems function. By exploring trophic interaction chains driven by pink salmon, we may achieve a deeper conservation conscientiousness for these northern open oceans.

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