Austroglanis barnardi

Austroglanis barnardi
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Austroglanididae
Genus: Austroglanis
Species:
A. barnardi
Binomial name
Austroglanis barnardi

Austroglanis barnardi is an endangered species of catfish (order Siluriformes). It is one of three members of the family Austroglanididae.[2] It is also known as the spotted rock-catfish or Barnard's rock-catfish.[3][4]

Biology

Not much is known about the biology of A. barnardi because of the discovery being so recent. It has a 12-year generation time but nothing more is known about reproduction within the species.[3][1] It feeds on aquatic insects, benthic invertebrates and other small fishes.[2]

Habitat

This species is endemic to South Africa and is found only in freshwater bodies of subtropical climate.[4] It has only been recorded from the Thee, Noordhoeks and Hex Rivers, which are all small tributaries of the Clanwilliam Olifants River System in the Western Cape, South Africa.[3][2][1] It is extremely uncommon in these two streams it inhabits.[3] A. barnardi inhabits riffles among loosely bedded rocks and coarse sand.[3] Its preferred water depth is between 10-60 centimeters.[2] Other species that occur in this area include Pseudobarbus phlegethon, Barbus calidus, and Austroglanis gilli.[3]

Physical Description

These fish reach a length of about 8 centimeters (3 in).[4] Its head is flattened with a broad snout with its eyes located on the top of the head. The mouth is located on the underside of the head along with fleshy lips. It has three pairs of barbels. It has short, round fins accompanied by weak, curved spines on the pectoral and dorsal fins.[2] Their color is golden-brown with dark brown blotches.[3]

Threats

A. barnardi is threatened by various forms of habitat destruction such as stream channelization, water abstraction, and sedimentation, all of which reduce the incidence of their obligate riffle habitat.[3] Portions of their river habitat are adjacent to agricultural fields and orchards, so it is likely that pesticides and insecticides affect populations. It has been threatened by the introduction of invasive species such as tilapia, smallmouth bass and the bluegill sunfish.[1]

Conservation

Biologists have recently discussed many conservation methods. In 2013, an alien fish barrier was constructed across a section of the Noordhoeks River to keep Micropterus species from moving upstream from this section of river. Additionally, invasive spotted bass were removed mechanically from sections of the Thee river mechanically between 2010 and 2014. No known populations are currently within the boundaries of any provincial nature reserves.[1]

References

  1. ^ a b c d e Van der Walt, R.; Swartz, E.R.; Bills, R.; Impson, D.; Jordaan, M. (2017). "Austroglanis barnardi". IUCN Red List of Threatened Species. 2017: e.T2426A99448638. doi:10.2305/IUCN.UK.2017-3.RLTS.T2426A99448638.en. Retrieved 12 November 2021.
  2. ^ a b c d e "Barnard's rock-catfish videos, photos and facts - Austroglanis barnardi". Arkive. Archived from the original on 2018-05-01. Retrieved 2018-04-30.
  3. ^ a b c d e f g h Bruton, Michael N. (1996). "Threatened fishes of the world: Austroglanis barnardi (Skelton, 1981) (Austroglanididae)". Environmental Biology of Fishes. 45 (4): 382. doi:10.1007/BF00002530. S2CID 34000086.
  4. ^ a b c Froese, Rainer; Pauly, Daniel (eds.). "Austroglanis barnardi". FishBase. May 2007 version.


Stub icon

This catfish-related article is a stub. You can help Wikipedia by expanding it.

Read other articles:

Jalan Rigga

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Maret 2016. Jalan Riggaشارع الرقّة   Negara: Uni Emirat Arab (UEA) Panjang: 0.8 mi (1 km) Kota: Dubai Jalan Rigga (Bahasa Arab: شارع الرقّة) merupakan sebuah jalan di Deira, Dubai. Memiliki berbagai aktivitas pariwisata dan lokasi institusi ...

 

 

Kapal perusak Jepang Isonami (1927)

Untuk kapal lain dengan nama serupa, lihat Kapal perusak Jepang Isonami. Isonami Sejarah Kekaisaran Jepang Nama IsonamiAsal nama Kapal perusak Jepang Isonami (1908)Dipesan 1923 (Tahun Fiskal)Pembangun Perusahaan Dok UragaNomor galangan Perusak No. 43Pasang lunas 19 Oktober 1926Diluncurkan 24 November 1927Mulai berlayar 30 Juni 1928Dicoret 1 Agustus 1943Nasib Tenggelam pada 9 April 1943 Ciri-ciri umum Kelas dan jenis Kapal perusak kelas-FubukiBerat benaman 1.750 ton panjang (1.780...

 

 

André Rossi

Pour les articles homonymes, voir Rossi. Cet article est une ébauche concernant un homme politique français. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. André Rossi Buste d'André Rossi à Chézy-sur-Marne. Fonctions Député français 23 juin 1988 – 22 août 1994(6 ans, 1 mois et 30 jours) Élection 12 juin 1988 Réélection 28 mars 1993 Circonscription 5e de l'Aisne Législature IXe et ...

Kikuko Inoue

Kikuko InoueInoue, 2018Nama asal井上 喜久子Lahir25 September 1964 (umur 59)[1]Yokosuka, Kanagawa, JepangNama lainKikuko Kumagai (熊谷 喜久子code: ja is deprecated , Kumagai Kikuko)Pekerjaan Seiyuu penyanyi narator Tahun aktif1988–sekarangAgenOffice AnemoneKarya terkenal Ranma ½ sebagai Kasumi Tendo Ah! My Goddess sebagai Belldandy Clannad sebagai Sanae Furukawa Danganronpa V3: Killing Harmony sebagai Kirumi Tojo Fullmetal Alchemist: Brotherhood sebaga...

 

 

Associazione Calcio Siena 1950-1951

Questa voce sull'argomento stagioni delle società calcistiche italiane è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Voce principale: Associazione Calcio Siena. AC SienaStagione 1950-1951Sport calcio Squadra Siena Allenatore Ferrero Alberti Presidente Agostino Battignani Serie C2º nel girone C StadioDel Rastrello 1949-1950 1951-1952 Si invita a seguire il modello di voce Questa voce raccoglie ...

 

 

Julie Parrish

Untuk politikus Oregon, lihat Julie Parrish (politikus). Julie ParrishJulie Parrish dari acara komedi televisi Good Morning, World (1967)LahirRuby Joyce Wilbar(1940-10-21)21 Oktober 1940Middlesboro, Kentucky, ASMeninggal1 Oktober 2003(2003-10-01) (umur 62)Los Angeles, California, ASPekerjaanAktris Julie Parrish (21 Oktober 1940 – 1 Oktober 2003) adalah seorang aktris film, panggung dan televisi Amerika. Kehidupan awal Parrish lahir dengan nama Ruby Joyce Wilbar, sebagai a...

Computer addiction

Excessive or compulsive use of the computer This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Computer addiction – news · newspapers · books · scholar · JSTO...

 

 

Jerome Isaac Friedman

Cet article est une ébauche concernant un physicien américain. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Jerome Isaac FriedmanBiographieNaissance 28 mars 1930 (94 ans)Chicago (Illinois)Nationalité américaineFormation Université de ChicagoUniversité StanfordJohn Marshall Metropolitan High School (en)Activités Physicien, professeur d'universitéAutres informationsA travaillé pour Massachusetts I...

 

 

انفانتا آنا دي جيسوس ماريا، ماركيزة لولي

انفانتا آنا دي جيسوس ماريا، ماركيزة لولي (بالبرتغالية: Ana de Jesus Maria de Bragança)‏    معلومات شخصية الميلاد 23 أكتوبر 1806   الوفاة 22 يونيو 1857 (50 سنة)   روما  مواطنة مملكة البرتغال  الزوج نونو جوسيه سيفيرو دي ميندوزا روليم دي مورا بارتو، دوق لولي الأول  [لغات أخرى]‏...

Cytisus scoparius

  Cytisus scoparius Estado de conservaciónPreocupación menor (UICN)TaxonomíaReino: PlantaeDivisión: MagnoliophytaClase: MagnoliopsidaOrden: FabalesFamilia: FabaceaeSubfamilia: FaboideaeTribu: GenisteaeGénero: CytisusEspecie: Cytisus scoparius(L.) Link[editar datos en Wikidata] Cytisus scoparius, de nombre vulgar retama negra o escoba rubia, es una especie perteneciente a la familia de las fabáceas. Descripción Es una planta arbustiva de 1 a 2 m de altura, con ramas delga...

 

 

الطاقة الغذائية

الطاقة الغذائية هي الطاقة الكيميائية التي تستمدها الحيوانات والبشر، من الطعام خلال عملية التنفس الخلوي. يتم التنفس الخلوي عن طريق تفاعل كيميائي لجزيئات الطعام مع الأكسجين المكتسب من الهواء أثناء التنفس أو من عملية إعادة تنظيم جزيئات الطعام دون إضافة الهواء. يحتاج البشر �...

 

 

On Stranger Tides

1987 historical fantasy novel by Tim Powers This article is about the 1987 novel by Tim Powers. For the 2011 film, see Pirates of the Caribbean: On Stranger Tides. On Stranger Tides First edition cover.AuthorTim PowersCover artistJames GurneyCountryUnited StatesLanguageEnglishGenreHistorical fantasyPublisherAce Books (Hardcover edition)Publication dateNovember 1987Media typePrint (Hardback & Paperback)Pages325ISBN978-0-441-62683-0OCLC15661924 On Stranger Tides is a 1987 historic...

Maurism

Antonio Maura and Antonio Goicoechea in a Maurist meeting (April 1917). Maurism (Maurismo in Spanish) was a conservative political movement that bloomed in Spain from 1913 around the political figure of Antonio Maura after a schism in the Conservative Party between idóneos ('apt ones') and mauristas ('maurists'). Its development took place in a period of crisis for the dynastic parties of the Spanish Restoration regime.[1] The movement, which fragmented in several factions in the 192...

 

 

Governor of North Dakota

Head of government of North Dakota, USThis article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Governor of North Dakota – news · newspapers · books · scholar · JSTOR (June 2023) (Learn how and when to remove this message)Governor of North DakotaSeal of the governor of North DakotaStandard of the governorIncumbentDou...

 

 

Secretaría de Energía (Argentina)

Secretaría de Energía Sede en Buenos AiresLocalizaciónPaís  ArgentinaInformación generalSigla SGEJurisdicción NacionalTipo Secretaría de EstadoSede Palacio de Hacienda, Hipólito Yrigoyen 250, Ciudad de Buenos AiresOrganizaciónSecretario Eduardo Chirillo (Ind.)Entidad superior Ministerio de Obras y Servicios Públicos (1958-1972) Ministerio de Economía (1972-1981) Ministerio de Obras y Servicios Públicos (1981-1991) Ministerio de Economía, Obras y Servicios Públicos (199...

Финал Кубка Англии по футболу 2001

Финал Кубка Англии 20012001 FA Cup Final Турнир Кубок Англии 2000/01 Арсенал Ливерпуль 1 2 Дата 12 мая 2001 года Стадион «Миллениум», Кардифф Судья Стив Данн Посещаемость 72 500 20002002 Финал Кубка Англии по футболу 2001 года стал 120-м финалом старейшего футбольного кубкового турнира в мире, Кубк�...

 

 

Bruno Cirillo

Bruno CirilloBruno Cirillo nel 2008Nazionalità Italia Altezza187 cm Peso75 kg Calcio RuoloDifensore Termine carriera2015 - giocatore CarrieraGiovanili  Reggina Squadre di club1 1994-1996 Reggina1 (0)1996-1998→  Tricase54 (4)1998-2000 Reggina48 (2)2000-2001 Inter17 (0)2001-2002 Lecce18 (3)2002-2003→  Reggina10 (0)2003 Lecce14 (1)2003-2005→  Siena54 (0)2005-2007 AEK Atene50 (3)2007-2008 Levante16 (0)2008-2009 Reggina50 (0)2...

 

 

English interjections

Interjections in the English language Part of a series onEnglish grammar MorphologyPluralsPrefixes (in English)Suffixes (frequentative) Word typesAcronymsAdjectivesAdverbs (flat)ArticlesCoordinatorsCompoundsDemonstrativesDeterminers (List here)ExpletivesIntensifierInterjectionsInterrogativesNounsPortmanteausPossessivesPrepositions (List here)Pronouns (case · person)SubordinatorsVerbs VerbsAuxiliary verbsMood (conditional · imperative · subjunctive)Aspect (continuous · habitual · perfect)...

Balance wheel

Time measuring device Balance wheel in a mantel clock. The spiral balance spring is visible at top. Balance wheel in a 1950s alarm clock, the Apollo, by Lux Mfg. Co. showing the balance spring (1) and regulator (2) Modern balance wheel in a watch movement A balance wheel, or balance, is the timekeeping device used in mechanical watches and small clocks, analogous to the pendulum in a pendulum clock. It is a weighted wheel that rotates back and forth, being returned toward its center position ...

 

 

Ходули (картина Гойи)

Франсиско Гойя Ходули. 1791—1792 Los zancos Холст, масло. 268 × 320 см Прадо, Мадрид (инв. P000801[1])  Медиафайлы на Викискладе «Ходули» (исп. Los zancos) — картина испанского художника Франсиско Гойи, написанная около 1791—1792 годов. Полотно принадлежит к седьмой серии �...