Yuriy Mikhalev

• Institute of Marine Biology

This study investigates possible regional variations in size composition of adult female sperm whales (Physeter macrocephalus) using data from 3302 pregnant individuals taken on Soviet whaling expeditions to the Southern Hemisphere 1961/62–1974/75. A general linear model (GLM) was used to take the covariates of expedition, latitude and ocean basin...

Проанализированы данные по добыче косаток одесскими китобойными флотилиями в период 1961-1979 гг. Указан объем добычи - 323 косатки. Размеры 205 самцов варьировали от 4.5 м до 9.0 м, средняя их длина соста­вила 7.26 м. Размеры 118 самок колебались от 3.7 м до 7.7 м, при средней длине 6.42 м. Составлены помесячные карты распределения косаток в Антар...

Проанализированы данные о встречаемости амбры у кашалотов, добытых китобойными флотилиями «Слава» и «Советская Украина» в период 1961–1978 гг. (22 промысловых рейса). Встречаемость амбры составила 0,35% от добытых 43 211 кашалотов, причём у самцов она оказалась выше (0,42%), чем у самок (0,24%), амбра же была по преимуществу чёрной (серая – реже)....

Information about a unique form – dwarf whale Caperea marginata, from the open waters of the South Atlantic, is provided. Hydrobiological characteristics of the area is given. Size, gender and biological state of caught whales, the weight of internal organs, fullness and stomach content (Calanus tonsus, Calanus simillimus) are specified. The behavi...

Special characteristics of whaling given beginning from old historical times. Distinguished different periods of this industry. Explained the transfer of whaling into the Antarctic. Given the catch data of main whaling species. The history of creation of International Convention on regulation of whaling and development of unified rules of whaling....

Дано характеристику особливостей промислу китів з давніх історичних часів. Виділено якісно різні епохи. Обґрунтовано перехід до промислу китів у водах Антарктики. Вказано обсяги здобування основних промислових видів китів. Розглянуто історію створення Міжнародної Конвенції з врегулювання промислу й розробки Єдиних правил здобування китів. Описано х...

Pygmy blue whales (Balaenoptera musculus brevicauda) are ≤24.1 m and are generally found north of 52◦S in summer, whereas the more southerly Antarctic blue whales (B. m. intermedia) may exceed 30 m. Previous assessments have assumed that catches and recent surveys south of 60◦S recorded Antarctic blue whales, but these may have included pygmy blue...

New blue whale ovarian corpora data from illegal Soviet catches in the Southern Hemisphere and northern Indian Ocean were recovered from the original logbooks. Catches north of 52◦S were assumed to be pygmy blue whales (Balaenoptera musculus brevicauda, n = 1,272); those south of 56◦S were assumed to be Antarctic (true) blue whales (B. m. intermedi...

Worldwide catch series are presented for blue whales during the modern whaling period (1868-1878), divided into five populations. There are only a handful of documented catches of blue whales prior to this period, and none afterwards. The data come from the IWC summary annual catch database and the IWC individual whale catch database, and correct f...

Blue whale locations in the Southern Hemisphere and northern Indian Ocean were obtained from catches (303 239), sightings (4383 records of ≥8058 whales), strandings (103), Discovery marks (2191) and recoveries (95), and acoustic recordings. Sighting surveys included 7 480 450 km of effort plus 14 676 days with unmeasured effort. Groups usually cons...

More precise data on the extent of commercial removal from populations of large whale species in the Southern Hemisphere and in tropical waters of the Northern Hemisphere are presented. In the light of new facts, the models of population recovery and stabilization of some species in the World Ocean should be reviewed.

The population identity of humpback whales Megaptera novaeangliae in the Arabian Sea has long been a matter of dispute. New information is presented from this region, based upon whaling and observations conducted by the Soviet Union, primarily in November 1966. In that month, a total of 238 humpbacks were killed off the coasts of Oman, Pakistan and...

Female blue whale ovarian corpora data were translated and encoded from the USSR's Slava (1961/62–1965/66) and Sovietskaya Ukraina (1961/62–1971/72) expeditions. Complete ovarian data were available for 1,425 blue whales (1,272 pygmy, 153 Antarctic). Catches north of 52°S were assumed to be pygmy blue whales (Balaenoptera musculus brevicauda), whil...