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http://dbpedia.org/ontology/abstract Apakah ikan tidur atau tidak adalah pertan … Apakah ikan tidur atau tidak adalah pertanyaan yang menarik, sampai-sampai mengilhami judul beberapa buku sains populer. Pada burung dan mamalia, tidur didefinisikan dengan penutupan mata dan adanya pola khas aktivitas listrik di otak, termasuk neokorteks, namun ikan tidak mempunyai kelopak mata dan neokorteks. Beberapa spesies yang selalu hidup dalam kawanan atau berenang terus menerus (karena kebutuhan akan pelantak/pendorong ventilasi insang, misalnya) dicurigai tidak pernah tidur. Ada juga keraguan tentang spesies ikan buta tertentu yang hidup di gua. Ikan lain sepertinya tidur, namun, terutama bila kriteria perilaku murni digunakan untuk mendefinisikan tidur. Misalnya, ikan zebra (Danio rerio), tilapia, , (Ameiurus nebulosus), dan (Cephaloscyllium ventriosum) menjadi tidak bergerak dan tidak responsif di malam hari (atau siang hari, dalam kasus hiu bengkak); dan bahkan dapat diangkat dengan tangan sampai ke permukaan tanpa menimbulkan respons. Di sisi lain, pola tidur mudah terganggu dan bahkan bisa hilang selama periode migrasi, pemijahan, dan ketika merawat anak-anak mereka.ahan, dan ketika merawat anak-anak mereka. , Whether fish sleep is an open question, to … Whether fish sleep is an open question, to the point of having inspired the title of several popular science books. In birds and mammals, sleep is defined by eye closure and the presence of typical patterns of electrical activity in the brain, including the neocortex, but fish lack eyelids and a neocortex. Some species that always live in shoals or that swim continuously (because of a need for ram ventilation of the gills, for example) are suspected never to sleep. There is also doubt about certain blind species that live in caves. However, other fish do seem to sleep, especially when purely behavioral criteria are used to define sleep. For example, zebrafish, tilapia, tench, brown bullhead, and swell shark become motionless and unresponsive at night (or by day, in the case of the swell shark); Spanish hogfish and blue-headed wrasse can even be lifted by hand all the way to the surface without evoking a response. On the other hand, sleep patterns are easily disrupted and may even disappear during periods of migration, spawning, and parental care.of migration, spawning, and parental care.
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rdfs:comment Apakah ikan tidur atau tidak adalah pertan … Apakah ikan tidur atau tidak adalah pertanyaan yang menarik, sampai-sampai mengilhami judul beberapa buku sains populer. Pada burung dan mamalia, tidur didefinisikan dengan penutupan mata dan adanya pola khas aktivitas listrik di otak, termasuk neokorteks, namun ikan tidak mempunyai kelopak mata dan neokorteks. Beberapa spesies yang selalu hidup dalam kawanan atau berenang terus menerus (karena kebutuhan akan pelantak/pendorong ventilasi insang, misalnya) dicurigai tidak pernah tidur. Ada juga keraguan tentang spesies ikan buta tertentu yang hidup di gua.sies ikan buta tertentu yang hidup di gua. , Whether fish sleep is an open question, to … Whether fish sleep is an open question, to the point of having inspired the title of several popular science books. In birds and mammals, sleep is defined by eye closure and the presence of typical patterns of electrical activity in the brain, including the neocortex, but fish lack eyelids and a neocortex. Some species that always live in shoals or that swim continuously (because of a need for ram ventilation of the gills, for example) are suspected never to sleep. There is also doubt about certain blind species that live in caves. certain blind species that live in caves.
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