A Few Sea-Worms
نویسندگان
چکیده
منابع مشابه
Toxinology of Venomous Marine Worms; A Review
Although the widespread distribution of venomous marine worms around the world, the structural and toxinologcal studies of their toxins are still limited.This study was aimed to evaluate the toxicity of poisonous marine worms. Touching the cilium of Chloeia flava and Sipuncula marine worms cause painful inflammation of the skin. Many species of nemertines prey their victims by a flexible prob...
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The most dramatic gradient in global biodiversity is between marine and terrestrial environments. Terrestrial environments contain approximately 75-85% of all estimated species, but occupy only 30 per cent of the Earth's surface (and only approx. 1-10% by volume), whereas marine environments occupy a larger area and volume, but have a smaller fraction of Earth's estimated diversity. Many hypoth...
متن کاملA life without worms
Worms have co-evolved with humans over millions of years. To survive, they manipulate host systems by modulating immune responses so that they cause (in the majority of hosts) relatively subtle harm. Anthelminthic treatment has been promoted as a measure for averting worm specific pathology and to mitigate subtle morbidities which may include effects on anaemia, growth, cognitive function and e...
متن کاملWorms
Sir.?I slit. 11 deem it a great, favour if yon will kindly allow me a little space in your well-known journal for the following few lines with a view to draw the attention of your numerous readers to the subject. During the last two years of a practice attending over 20 years I have come across a series of cases suffering from a peculiar kind of worm which fly within a few seconds of their expu...
متن کاملParasitic worms of Acipenser stellatus, A. gueldenstaedtii, A. nudiventris and Huso huso (Chondrostei: Acipenseridae) from the southwest shores of the Caspian Sea
Sturgeons are the most important fish in the Caspian Sea, but there are only a few reports on their parasite communities in the southern part of this sea. In this study, a total of 93 individuals of four sturgeon species, namely Acipenser stellatus (n= 60), A.gueldenstaedtii (n = 12), A. nudiventris (n = 9) and Huso huso (n = 12), were caught in 2 geographical regions from the southwest of t...
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ژورنال
عنوان ژورنال: The American Naturalist
سال: 1868
ISSN: 0003-0147,1537-5323
DOI: 10.1086/270236