منابع مشابه
Pup production and breeding distribution of the Caspian seal (Phoca caspica) in relation to human impacts.
Aerial surveys of Caspian seals on the winter ice field in Kazakhstan territorial waters were carried out in February 2005 and 2006 to assess the annual pup production for the species and natural predation on newborn pups. Estimated pup production was 21063 in 2005 and 16905 in 2006 (including an estimated figure for pups born in Russian territory in each year). The breeding population size of ...
متن کاملRe: The 2000 canine distemper epidemic in Caspian seals (Phoca caspica): pathology and analysis of contributory factors.
More than 10,000 Caspian seals (Phoca caspica) were reported dead in the Caspian Sea during spring and summer 2000. We performed necropsies and extensive laboratory analyses on 18 seals, as well as examination of the pattern of strandings and variation in weather in recent years, to identify the cause of mortality and potential contributory factors. The monthly stranding rate in 2000 was up to ...
متن کاملFlavonoids from Halostachys caspica and their antimicrobial and antioxidant activities.
Seven flavonoids have been isolated from the aerial parts of Halostachys caspica C. A. Mey. (Chenopodiaceae) for the first time. By means of physicochemical and spectrometric analysis, they were identified as luteolin (1), chrysin (2), chrysin 7-O-β-D-glucopyranoside (3), quercetin (4), quercetin 3-O-β-D-glucopyranoside (5), isorhamentin-3-O-β-D-glucopyranoside (6), and isorhamentin-3-O-β-D-rut...
متن کاملتعیین مقادیر سم پروفنوفوس در بافت چربی فوک خزری (Phoca caspica) در خزر جنوبی (ساحل دریایی استان گلستان و مازندران)، ایران
سم پروفنفوس یکی از سموم پر مصرف ارگانوفسفره میباشد. این سم با اثر بخشی سریع، موجودات جونده و مکنده بسیار گستردهای را کنترل میکند. بهعلت استفاده گسترده از این سم در مزارع اطراف سواحل دریای خزر، میزان تجمع زیستی سم پرفنوفوس را در 10 لاشه فوک خزری جمعآوری شده از سواحل استان گلستان و مازندران، اندازهگیری شد. فوک خزری تنها پستاندار دریای خزر است که در سالهای اخیر در خطر انقراض قرار گ...
متن کاملMass die-Off of Caspian seals caused by canine distemper virus.
Thousands of Caspian seals (Phoca caspica) died in the Caspian Sea from April to August 2000. Lesions characteristic of morbillivirus infection were found in tissue specimens from dead seals. Canine distemper virus infection was identified by serologic examination, reverse transcriptase- polymerase chain reaction, and sequencing of selected P gene fragments. These results implicate canine diste...
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ژورنال
عنوان ژورنال: Annals and Magazine of Natural History
سال: 1899
ISSN: 0374-5481
DOI: 10.1080/00222939908678209