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Морфофизиологическая характеристика серых китов, добытых в северной Пацифике в 20-м столетии

Морфофизиологическая характеристика серых китов, добытых в северной Пацифике в 20-м столетии

Abstract

Приводится биостатистический материал от 1300 серых китов калифорнийско-чукотской (восточной) популяции, добытых в период с 1980 по 2000 г. у берегов Дальнего Востока, и 148 китов корейско-охотской (западной) популяции, добытых в начале 19-го столетия у берегов Корейского полуострова. Доля самок в добыче китов восточной популяции по годам и районам колебалась от 43 до 60 %. Размеры добываемых животных варьировали от 8,6 до 14,1 м, а возраст от 1,5 до 60,0 года, при этом доля неполовозрелых особей в добыче изменялась от 20 до 90 %. Среди добытых самок беременные особи составили 13,4 %. Упитанность осмотренных китов не была постоянной по годам, но ее изменение не носило какой-либо односторонней направленности. По своим значениям показатели добытых китов западной популяции отличаются от аналогичных показателей животных, добытых у берегов Дальнего Востока. Так, у Корейского полуострова в добыче преобладали самцы и животные более крупных размеров.

Biostatistical data are presented for 1300 gray whales belonged to the California-Chukotka population (East Pacific gray whales) and landed in the waters of Far East of Russia in 1980-2000s and for 148 gray whales belonged to the Korea-Okhotsk population (West Pacific gray whales) and landed in the early 19 th century at Korean Peninsula. In the eastern population, the portion of females changed by areas and years in the range 43-60 % (on average 13.4 % of them were pregnant), length of whales was 8.6-14.1 m, their age was 1.5-60.0 years old, with the portion of juveniles from 20 to 90 %, and fatness was very variable, without any tendency. These parameters are significantly different from those ones for the whales landed at Korea, where males prevailed and the animals were generally larger.

Keywords

СЕРЫЙ КИТ, ПОЛОВОЗРАСТНОЙ СОСТАВ, РАЗМЕРНЫЙ СОСТАВ, УПИТАННОСТЬ, ФИЗИОЛОГИЧЕСКОЕ СОСТОЯНИЕ, ЧУКОТСКИЙ ПОЛУОСТРОВ, КОРЕЙСКИЙ ПОЛУОСТРОВ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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