منابع مشابه
Larval anisakid infections of some tropical fish species from north-west Australia.
Despite the commercial and zoonotic importance of larval anisakid infestations of teleosts, their distribution among Australia's diverse marine fish fauna is poorly understood. A preliminary survey of Australia's tropical north-west revealed a generally high prevalence of larval anisakids representing four genera (Anisakis, Terranova, Thynnascaris and Raphidascaris) among only seven fish specie...
متن کاملIntroducing some echinoderms from the Tirgan Formation, Kopeh-Dagh Basin, NE of Iran
A stratigraphic section from the Tirgan Formation was selected in Arkan village nearby Bojnourd city in order to study echinoderm fauna systematically. Many specimens of echinoderms, especially toxasteridae which is associated with brachiopods were collected and studied systematically in this paper. Microscopie slides were also prepared and studied. All slides contain benthic foraminifers and c...
متن کاملEchinoderms
two fish. In the wild, kittiwakes have to learn to look for particular colours and patterns in the ocean to find the best place to fish. The researchers tried to recreate this for the captive birds by making them search for their food among a chequerboard of different coloured bowls. Chicks on the unrestricted fatty diet quickly learned which bowls contained food, but chicks on lean rations wer...
متن کاملThe Insider-outsider Theory: Some Evidence from Australia
This paper uses Australian micro data to test the insider-outsider model. As part of this, the paper also examines whether the distinction between insiders and outsiders has more relevance for males or females. The paper finds that males have more insider power than females. It is also argued that this represents an indirect test in support of Lindbeck and Snowers’s (1988) turnover cost version...
متن کاملEchinoderms Have Bilateral Tendencies
Echinoderms take many forms of symmetry. Pentameral symmetry is the major form and the other forms are derived from it. However, the ancestors of echinoderms, which originated from Cambrian period, were believed to be bilaterians. Echinoderm larvae are bilateral during their early development. During embryonic development of starfish and sea urchins, the position and the developmental sequence ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Linnean Society of London, Zoology
سال: 1923
ISSN: 0368-2935
DOI: 10.1111/j.1096-3642.1923.tb00047.x