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← Older revision		Revision as of 18:06, 11 February 2025
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	~~'''Arctic Char''' (''Salvelinus alpinus'') is a cold-water fish in the family [[Salmonidae]], native to alpine lakes~~ and arctic and subarctic coastal waters. Its distribution is circumpolar. It spawns in fresh water and populations can be [[anadromous]], remaining in fresh water, or [[semianadromous]], migrating to the sea.		{{short description\|Brazilian neurologist and writer}}
			{{Use dmy dates\|date=October 2023}}

	~~== Description ==~~		'''Antônio Austregésilo Rodrigues de Lima''' (21 April 1876 – 23 December 1960) was a prominent Brazilian neurologist and writer. He is considered one of the pioneers in the field of neurology in Brazil and made significant contributions to the understanding and treatment of neurological disorders.
	~~The Arctic Char is closely related to both [[salmon]]~~ and ~~[[lake trout]], and has many characteristics of both~~. ~~The fish~~ is ~~highly variable~~ in ~~colour, depending on~~ the ~~time~~ of ~~year~~ and the ~~environmental conditions~~ of ~~the lake where it lives. Its coloration can range from a bright silver to a dark green or even almost black. The belly can range from bright red to pink~~.

	== ~~Distribution~~ and ~~habitat~~ ==		==Early life and education==
	~~Arctic Char is found~~ in the ~~arctic circle~~, ~~as well as in lakes and rivers~~ in the ~~northern parts~~ of ~~North America, Europe, and Asia~~. ~~It is the northernmost freshwater fish~~, ~~and it's habitat spans many different environments. It is known to thrive~~ in ~~cold~~, ~~clean, deep lakes and rivers, and it can also be found in~~ the ~~ocean in~~ the ~~arctic regions~~.		Antônio Austregésilo was born in [[Recife]], [[Pernambuco]], Brazil. He pursued his medical education at the [[Federal University of Rio de Janeiro]], where he developed a keen interest in the study of the nervous system. After completing his medical degree, Austregésilo furthered his studies in Europe, where he trained under some of the leading neurologists of the time.

	== ~~Diet~~ ==		==Career==
	~~The diet of Arctic Char varies greatly depending on~~ the ~~size~~ of the ~~fish and the location~~. ~~Small char feed~~ on ~~zooplankton~~ and ~~insect larvae, while larger char feed on a variety~~ of ~~food items, including fish~~, ~~crustaceans~~, and ~~insects~~.		Upon returning to Brazil, Austregésilo established himself as a leading figure in the field of neurology. He was instrumental in founding the first neurology clinic in Brazil, which provided specialized care for patients with neurological disorders. Austregésilo's work focused on the diagnosis and treatment of conditions such as [[epilepsy]], [[Parkinson's disease]], and [[multiple sclerosis]].

	~~== Reproduction ==~~		Austregésilo was also a prolific writer, contributing numerous articles and books on neurology. His writings helped to disseminate knowledge about neurological diseases and their management, both within Brazil and internationally. He was a member of several prestigious medical societies and received numerous awards for his contributions to medicine.
	~~Arctic Char are [[broadcast spawners]]~~, ~~meaning they release~~ their ~~eggs~~ and ~~sperm into the water column to fertilize~~. ~~They spawn in the fall,~~ and ~~females will lay their eggs in nests that they create in the gravel on the lake or river bottom~~.

	== ~~Conservation~~ ==		==Contributions to neurology==
	~~Arctic Char populations are generally stable, but some local populations have been impacted by overfishing, habitat loss, and climate change~~. ~~Conservation efforts are focused~~ on ~~maintaining healthy populations~~ and ~~habitats,~~ and ~~managing fishing to ensure it is sustainable~~.		Antônio Austregésilo is credited with advancing the understanding of various neurological conditions. He conducted extensive research on the pathophysiology of epilepsy and was one of the first to describe certain movement disorders. His work laid the foundation for future research in these areas and improved the clinical management of patients with neurological diseases.

	~~== See~~ also ==		Austregésilo was also known for his innovative teaching methods. He emphasized the importance of clinical observation and hands-on experience in the training of medical students and residents. His approach to medical education influenced generations of neurologists in Brazil.
	* [[Salmonidae]]
	* [[Anadromous]]
	* [[Semianadromous]]
	* [[Broadcast spawner]]

	[[Category:~~Fish~~]]		==Legacy==
	[[Category:~~Arctic fauna~~]]		Antônio Austregésilo's legacy in the field of neurology is profound. He is remembered as a pioneer who helped to establish neurology as a distinct medical specialty in Brazil. His contributions to medical education and research continue to be recognized and celebrated.
	[[Category:~~Freshwater fish~~]]
	~~{{Fish-stub}}~~		In addition to his medical achievements, Austregésilo was also a respected writer and intellectual. He was involved in various cultural and literary activities and was a member of the [[Brazilian Academy of Letters]].

			==Related pages==
			* [[Neurology]]
			* [[Epilepsy]]
			* [[Parkinson's disease]]
			* [[Multiple sclerosis]]

			==Gallery==
			<gallery>
			File:Antônio_Austregésilo.jpg\|Antônio Austregésilo
			</gallery>

			[[Category:Brazilian neurologists]]
			[[Category:1876 births]]
			[[Category:1960 deaths]]
			[[Category:People from Recife]]
			[[Category:Brazilian writers]]

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2024-03-03T05:34:08Z

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'''Arctic Char''' (''Salvelinus alpinus'') is a cold-water fish in the family [[Salmonidae]], native to alpine lakes and arctic and subarctic coastal waters. Its distribution is circumpolar. It spawns in fresh water and populations can be [[anadromous]], remaining in fresh water, or [[semianadromous]], migrating to the sea.

== Description ==
The Arctic Char is closely related to both [[salmon]] and [[lake trout]], and has many characteristics of both. The fish is highly variable in colour, depending on the time of year and the environmental conditions of the lake where it lives. Its coloration can range from a bright silver to a dark green or even almost black. The belly can range from bright red to pink.

== Distribution and habitat ==
Arctic Char is found in the arctic circle, as well as in lakes and rivers in the northern parts of North America, Europe, and Asia. It is the northernmost freshwater fish, and it's habitat spans many different environments. It is known to thrive in cold, clean, deep lakes and rivers, and it can also be found in the ocean in the arctic regions.

== Diet ==
The diet of Arctic Char varies greatly depending on the size of the fish and the location. Small char feed on zooplankton and insect larvae, while larger char feed on a variety of food items, including fish, crustaceans, and insects.

== Reproduction ==
Arctic Char are [[broadcast spawners]], meaning they release their eggs and sperm into the water column to fertilize. They spawn in the fall, and females will lay their eggs in nests that they create in the gravel on the lake or river bottom.

== Conservation ==
Arctic Char populations are generally stable, but some local populations have been impacted by overfishing, habitat loss, and climate change. Conservation efforts are focused on maintaining healthy populations and habitats, and managing fishing to ensure it is sustainable.

== See also ==
* [[Salmonidae]]
* [[Anadromous]]
* [[Semianadromous]]
* [[Broadcast spawner]]

[[Category:Fish]]
[[Category:Arctic fauna]]
[[Category:Freshwater fish]]
{{Fish-stub}}

Arctic char - Revision history

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