About: Sleep in fish

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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.

Attributes	Values
rdf:type	work
rdfs:label	Tidur ikan (in) Sleep in fish (en)
rdfs:comment	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. (in) 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. (en)
foaf:depiction
dcterms:subject	Sleep Sleep physiology Ichthyology
Wikipage page ID	43384469 (xsd:integer)
Wikipage revision ID	1111548005 (xsd:integer)
Link from a Wikipage to another Wikipage	Bluehead wrasse Homeostasis Smallmouth bass Spanish hogfish Pelagic Salmon Neocortex Circadian rhythms Goldfish Convict cichlid Damselfish Zebrafish Ictaluridae Swell shark Brown bullhead Sleep Sleep physiology Tuna Dascyllus marginatus Largemouth bass Sculpin Cyprinidae Parrotfish Cave Chromis viridis Hagfish Atlantic mackerel Ichthyology Lamprey Bluefish Tench Wrasse Thalassoma bifasciatum Bonito Burbot Shark Sleep Tilapia Naked-back knifefish Mozambique tilapia Rainbow cichlid Whitetail dascyllus Tautog White sucker Requiem sharks Halichoeres bivittatus Tautogolabrus adspersus Threespine stickleback
sameAs	Sleep in fish Sleep in fish Sleep in fish Sleep in fish
dbp:wikiPageUsesTemplate	dbt:Reflist dbt:Diversity_of_fish
thumbnail	wiki-commons:Special:FilePath/Astronotus_ocellatus.jpg?width=300
has abstract	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. (in) 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. (en)
gold:hypernym	Question
prov:wasDerivedFrom	wikipedia-en:Sleep_in_fish?oldid=1111548005&ns=0
page length (characters) of wiki page	18358 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Sleep_in_fish
is foaf:primaryTopic of	wikipedia-en:Sleep_in_fish

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