tinroИзвестия ТИНРОIzvestiya TINRO1606-99192658-5510ТИНРО10.26428/1606-9919-2021-201-313-323tinro-630Research ArticleБИОЛОГИЧЕСКИЕ РЕСУРСЫBIOLOGICAL RESOURCESЭкспериментальное определение продолжительности жизни производителей нерки на нерестилище в литорали оз. Начикинского (Камчатка)Experimental determination of residence time for sockeye salmon spawners on spawning grounds in the littoral zone of Lake Nachikinskoye (Kamchatka)ЗапорожецО. М.ZaporozhetsO. M.

Запорожец Олег Михайлович, доктор биологических наук, ведущий научный сотрудник

683000, г. Петропавловск-Камчатский, ул. Набережная, 18

Zaporozhets Oleg M., D. Biol., leading researcher, Kamchatka branch

18, Naberezhnaya Str., Petropavlovsk-Kamchatsky, 683000

zaporozhets.o.m@kamniro.ruЗапорожецГ. В.ZaporozhetsG. V.

Запорожец Галина Васильевна, кандидат биологических наук, ведущий научный сотрудник

683000, г. Петропавловск-Камчатский, ул. Набережная, 18

Zaporozhets Galina V., Ph.D., leading researcher, Kamchatka branch

18, Naberezhnaya Str., Petropavlovsk-Kamchatsky, 683000

zaporozhets.g.v@kamniro.ruКамчатский филиал ВНИРО (КамчатНИРО)РоссияVNIRO (KamchatNIRO)Russian Federation2021080720212012313323Copyright © Запорожец О.М., Запорожец Г.В., 20212021Запорожец О.М., Запорожец Г.В.Zaporozhets O.M., Zaporozhets G.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://izvestiya.tinro-center.ru/jour/article/view/630

Проведено определение времени жизни производителей нерки поздней расы непосредственно у нерестовых гнезд, расположенных в литорали Начикинского озера (на юге Камчатского полуострова), с помощью 11 серий мечения и учета меток на чуть более чем 700 особях в 2018 и 2020 гг. Исследуемый параметр является одним из ключевых при расчетах численности нерестующих производителей на основе периодических съемок от начала до конца нереста. Подробно изложена методика экспериментов, приведены таблицы данных. Обсуждено влияние на целевую функцию различных переменных. В результате проведенных экспериментов показано, что время жизни нерки на нерестовых гнездах в характерном локусе литорального мелководья оз. Начикинского составляет около 5 дней, и это значение следует использовать при расчетах там численности производителей.

Residence time of late-race sockeye spawners on spawning grounds located in the littoral zone of Lake Nachikinskoye in southern Kamchatka is determined directly using 11 series of tagging and tracking of tags conducted in 2018 and 2020 (700 tagged individuals). The residence time is the key parameter for calculation of the spawners number on the data of repeated observations from the beginning to the end of spawning. Methodology of the experiment is described in details and all data of measurements are presented. Impact of certain variables on the target function is discussed. The residence time is estimated as 5 days.

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The authors declare that there are no conflicts of interest present.