斑海豹

无耳品种包括象海豹、斑海豹、格陵兰海豹和豹形海豹。

Earless species include the elephant seal , harbor seal , harp seal , and leopard seal .

中国沿海斑海豹的生长与头骨变化关系

The growth of the harbor seal along the coasts of China and the changes of its skull

本文利用线粒DNA序列对辽东湾斑海豹的种群遗传结构进行了研究。

In this paper , the population structure of spotted seals was investigated using the mitochondrial DNA ( mtDNA ) sequences .

通过PCR产物测序法，测定了46只辽东湾斑海豹线粒体DNA的一段包括部分苏氨酸和脯氨酸tRNA基因及部分控制区的717bp序列，得到17个序列单元型。

The sequences of mtDNA control region , adjacent proline and a portion of the threonine tRNA genes were sequenced in 46 spotted seals using PCR-based sequencing method .

与日本海和鄂霍茨克海斑海豹相比，辽东湾斑海豹线粒体DNA的16296位点有1个碱基的插入，这个插入可以区分这几个海区斑海豹种群。

Compared with spotted seals along Sea of Japan and Sea of Okhotsk , Spotted seals of Liaodong Guif had one base insertion at site 16296 of mtDNA , which prove to be marker between these two populations .

辽东湾斑海豹（Phocalargha）在本世纪里由于过度捕杀，种群数量下降比较严重。

The harbour seal ( Phoca largha ) population in the Liaodong Bay area has been dwindling in this century due to excessive hunting pressure .

渤海斑海豹的分布调查

Survey on the distribution of spotted seal in Bohai Sea

还有，小心斑海豹和虎鲸。

And watch out for those leopard seals and them killer whales .

一只环斑海豹在浮出水面前扫视周围是否有北极熊。

A ringed seal scans for polar bears before snatching a breath .

庙岛群岛海域斑海豹的分布与保护褐点石斑鱼的核型研究

The Spotted Seals in Miaodao Islands The Karyotype of Grouper Epinephelus fuscoguttatus

斑海豹淡水繁殖及饲养管理的研究

Fresh-water Aquiculture , Feeding and Management of Harbor Seals

环斑海豹通常在洞穴的底部生育。

Ringed seal pups are reared in snow dens .

拍摄团队知道哪里可以找到豹斑海豹

The team knew where to find leopard seals ,

环斑海豹是北极熊的猎物之一

Ringed seals are hunted by polar bears .

斑海豹有很多种颜色，它们都有跟狗很像的头，没有外凸的耳朵。

Harbour Seals come in a variety of colours , and all have dog-like heads without external ears .

中国海域斑海豹种群资源和分子遗传特征研究

Studies on Population Resources and Molecular Genetic Characteristics of Spotted Seals ( Phoca Largha ) in Chinese Waters

辽东湾结冰区是斑海豹在世界上8个繁殖区中最南端的一个。

Liaodong Bay of Bohai Sea is the southernmost one of the eight breeding concentrations of spotted seals around the world .

一只斑海豹正在碧蓝的海水中畅游，水面上则是一大块隐现在背景中的南极浮冰。

A leopard seal swims in turquoise waters just below the surface as a jagged Antarctic ice floe looms in the background .

尽管他们只是对训练过的海豚做实验，研究小组称他们的证据证明所有的斑海豹都有此能力。

Although they only tested one trained animal , the research team say their evidence proves that the ability is present in all harbour seals .

辽东湾斑海豹线粒体苏氨酸和脯氨酸及控制区部分序列分析

Sequence Analysis of Mitochondrial tRNA ~ ( Thr ), tRNA ~ ( Pro ) and Control Region from Spotted Seals ( Phoca largha ) in Liaodong Gulf

为了能够更好地保护斑海豹资源，对渤海海域斑海豹的栖息地、种群动态及分布时间、重金属体内积累、以及斑海豹的分子遗传特性进行了研究。

For better understanding and protecting spotted seals , the habitats , population dynamics , heavy metal accumulation and molecular genetic characteristics of spotted seals are investigated .

仅在过去十年中，奥克尼郡和设得兰群岛的斑海豹数量就减少了40%，这些斑海豹或者因为疾病或者因为保护鲑鱼养殖场而被杀。

Harbour seals have declined by 40 per cent in the last decade alone in Orkney and Shetland , killed off by disease and measures to protect salmon farms .

这些北极熊在冬天慢慢地聚集到岸边，因为他们能在寒冷的冰层上猎到自己的美味&环斑海豹。

The bears are slowly congregating along the coast , anticipating the winter freeze of Hudson Bay when they can get onto the ice and hunt their favorite meal of ringed seal .

斑海豹，西北太平洋广泛分布的冷水性海洋哺乳动物，为我国的二类保护野生动物，属于濒危物种，也是唯一能在我国海域自然繁殖的鳍脚类动物。

Spotted seal ( Phoca largha ), is a coldwater marine mammal widely distributed in the North-Western Pacific Ocean , one of second-class protected endangered animals in China , the only pinniped animal which naturally breed in Chinese waters .

与其它经历过严重瓶颈效应的濒危哺乳动物种群的遗传杂合度（0.15～0.62）相比，辽东湾斑海豹遗传多样性处于相对较高水平。

Compared with other endangered mammals which suffered severe bottleneck effect ( expected heterozygosity : 0.15 ~ 0.62 ), spotted seals from Liaodong Gulf were at a relative higher level . A pair of specific primers was designed according to spotted seal from Alaska ( AM181031 ) .