Robalo nilský

Jak číst taxoboxRobalo nilský
alternativní popis obrázku chybí
Robalo nilský
Stupeň ohrožení podle IUCN
málo dotčený
málo dotčený[1]
Vědecká klasifikace
Říšeživočichové (Animalia)
Kmenstrunatci (Chordata)
Podkmenobratlovci (Vertebrata)
Třídapaprskoploutví (Actinopterygii)
Řádostnoploutví (Perciformes)
ČeleďLatidae
Rodrobalo Lates
Binomické jméno
Lates niloticus
Linnaeus, 1758
Některá data mohou pocházet z datové položky.

Robalo nilský[2] či Lates nilský (Lates niloticus) je druh sladkovodní ryby z čeledi Latidae nebo robalovití (Centropomidae). Používají se také názvy „nilský okoun“, nilský obr, nilovec nebo okoun nilský. Patří mezi 100 nejhorších invazních druhů světa.

Popis

Váží až 200 kg a dospělci průměru měří 121–137 cm. Je to predátor, který se živí menšími druhy ryb i jinými vodními živočichy, občas uloví i divokou kachnu.

Rozšíření

Je původní v Africe.

Využití

Je to významná hospodářská ryba a chová se i v akvakultuře. Jeho maso je tučné, má narůžovělou barvu a delikátní chuť, z evropských ryb se mu nejvíce podobá maso candáta a je bohaté na omega 3 mastné kyseliny.[3] Průměrný roční výlov (období v referenci neuvedeno) byl 300 000 tun.[2]

Vysazení ve Viktoriině jezeře

V roce 1954[2] byl vysazen (jako nepůvodní druh) ve Viktoriině jezeře, kde způsobil ekologickou katastrofu – vyhynutí nebo téměř vyhubení několika stovek původních druhů ryb, zejména cichlid. Zpočátku byly výlovy robala nilského ve Viktoriině jezeře malé, ale od počátku 80. let 20. století jeho výlov vzrostl až na 90 % ryb vylovených pomocí vlečných sítí.[2]

V tomto jezeře žere hlavně cichlidy rodu Haplochromis[2], které tak decimuje.

Galerie

Odkazy

Reference

  1. The IUCN Red List of Threatened Species 2022.2. 9. prosince 2022. Dostupné online. [cit. 2023-01-03].
  2. a b c d e Hanel L. 2000. Svět zvířat IX. Ryby (2). Albatros, Praha. strana 28.
  3. WERIMO, K.E.O. Nile perch oil characteristics, composition and use. [s.l.]: FAO Expert Consultation on Fish Technology in Africa. 6, Kisumu (Kenya), 27-30 Aug 1996, 1998. 

Související články

Externí odkazy

Read other articles:

هذه مقالة غير مراجعة. ينبغي أن يزال هذا القالب بعد أن يراجعها محرر؛ إذا لزم الأمر فيجب أن توسم المقالة بقوالب الصيانة المناسبة. يمكن أيضاً تقديم طلب لمراجعة المقالة في الصفحة المخصصة لذلك. (أكتوبر 2020) هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة �...

 

Andriansyah Fikri Wakil Wali Kota Prabumulih ke-3Masa jabatan14 Mei 2013 – 18 September 2023PresidenSusilo Bambang YudhoyonoJoko WidodoGubernurAlex NoerdinHadi Prabowo (Pj.)Herman DeruWali KotaRidho Yahya PendahuluRidho YahyaPenggantiPetahanaAnggota DPRD Kota PrabumulihMasa jabatan2009–2013PresidenSusilo Bambang YudhoyonoJoko WidodoGubernurAlex NoerdinWali KotaRachman Djalili Informasi pribadiLahir30 Agustus 1969 (umur 54)IndonesiaKebangsaanIndonesiaPartai politikPDI-PSu...

 

Saturday Night Live (SNL) is a late-night sketch comedy and variety show created by Lorne Michaels. It premiered on the NBC Television Network on October 11, 1975, under the title NBC's Saturday Night. The show often satirizes contemporary American popular culture and politics. Saturday Night Live features a two-tiered cast: the repertory members, also known as the Not Ready for Prime Time Players, and newer cast members, known as Featured Players. Each week, the show features a host, often ...

CaiazzoKomuneComune di CaiazzoLokasi Caiazzo di Provinsi CasertaNegaraItaliaWilayah CampaniaProvinsiCaserta (CE)Luas[1] • Total37,04 km2 (14,30 sq mi)Ketinggian[2]200 m (700 ft)Populasi (2016)[3] • Total5.657 • Kepadatan150/km2 (400/sq mi)Zona waktuUTC+1 (CET) • Musim panas (DST)UTC+2 (CEST)Kode pos81013Kode area telepon0823Situs webhttp://www.caiazzo.gov.it Caiazzo adalah sebuah kota da...

 

1930 United States Senate election in Wyoming ← 1924 November 4, 1930 1936 →   Nominee Robert D. Carey Harry Schwartz Party Republican Democratic Popular vote 43,626 30,259 Percentage 59.05% 40.95% U.S. senator before election Patrick J. Sullivan Republican Elected U.S. Senator Robert D. Carey Republican Elections in Wyoming Federal government Presidential elections 1892 1896 1900 1904 1908 1912 1916 1920 1924 1928 1932 1936 1940 1944 1948 1952 1956 1960 1964 ...

 

У этого термина существуют и другие значения, см. Чайки (значения). Чайки Доминиканская чайкаЗападная чайкаКалифорнийская чайкаМорская чайка Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:Вторич...

Ini adalah nama Batak Toba, marganya adalah Lumban Tobing. Tuani Lumban Tobing Bupati Tapanuli Tengah ke-16Masa jabatan5 April 2006 – 5 April 2011PresidenSusilo Bambang YudhoyonoGubernurRudolf PardedeSyamsul ArifinPendahuluRudolf Pardede (Plt.)PenggantiRaja Bonaran SitumeangMasa jabatan5 April 2001 – 5 April 2006PresidenAbdurrahman WahidMegawati SoekarnoputriSusilo Bambang YudhoyonoGubernurTengku Rizal NurdinRudolf PardedePendahuluPanusunan PasaribuPenggantiRudolf Pa...

 

Australian artist (1855-1917) Frederick McCubbinSelf-portrait, 1886, Art Gallery of New South WalesBorn(1855-02-25)25 February 1855Melbourne, Victoria, AustraliaDied20 December 1917(1917-12-20) (aged 62)Melbourne, Victoria, AustraliaEducationNational Gallery of Victoria Art SchoolKnown forPaintingMovementHeidelberg School Frederick McCubbin (25 February 1855 – 20 December 1917) was an Australian artist, art teacher and prominent member of the Heidelberg School art movement, also k...

 

Chinese TV series or program Chinese RestaurantSimplified Chinese中餐厅Traditional Chinese中餐廳Hanyu PinyinZhōngcāntīng GenreCooking showReality showDirected byWang TianStarringSee belowCountry of originChinaOriginal languageChineseNo. of seasons7No. of episodes84ProductionProduction locationsSeason 1: Ko Chang, ThailandSeason 2: Colmar, FranceSeason 3: Taormina, ItalySeason 4: Yangtze River Basin, ChinaSeason 5: ChinaSeason 6: Chenzhou, Hunan, ChinaSeason 7: Budapest, Hungary...

Electronic equipment 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: FASTON terminal – news · newspapers · books · scholar · JSTOR (November 2023) (Learn how and when to remove this message) Faston female terminals in three sizes, with insulation Faston male terminals in three sizes, with insulation Various ...

 

2004 studio album by Kenny ChesneyWhen the Sun Goes DownStudio album by Kenny ChesneyReleasedFebruary 3, 2004Recorded2003–04GenreCountryLength45:13LabelBNA RecordsProducerBuddy CannonKenny ChesneyKenny Chesney chronology All I Want for Christmas Is a Real Good Tan(2003) When the Sun Goes Down(2004) Be as You Are (Songs from an Old Blue Chair)(2005) Singles from When the Sun Goes Down There Goes My LifeReleased: October 20, 2003 When the Sun Goes DownReleased: February 2, 2004 I Go B...

 

Multi-level marketing vitamin distributor A major contributor to this article appears to have a close connection with its subject. It may require cleanup to comply with Wikipedia's content policies, particularly neutral point of view. Please discuss further on the talk page. (July 2019) (Learn how and when to remove this message) Shaklee CorporationHeadquarters in Pleasanton, CaliforniaCompany typePrivateIndustryWellness, Personal care, Multi-level marketingFounded1956FounderForrest C. Shakle...

Sayap camar atau sayap teluk adalah konfigurasi sebuah pesawat sayap dengan tikungan yang menonjol di suatu tempat di sepanjang rentang sayap, umumnya di dekat akar sayap. Namanya berasal dari burung laut yang menyerupai. Fungsi dari sayap seperti ini adalah memberikan luas pandang yang lebih baik kepada pilot. Referensi Scale Soaring UK Documentation Section Diarsipkan 2006-06-17 di Wayback Machine. Polish patent filed on December 4, 1929.[pranala nonaktif permanen] Vought F4U Corsa...

 

Questa voce o sezione sull'argomento scrittori è priva o carente di note e riferimenti bibliografici puntuali. Sebbene vi siano una bibliografia e/o dei collegamenti esterni, manca la contestualizzazione delle fonti con note a piè di pagina o altri riferimenti precisi che indichino puntualmente la provenienza delle informazioni. Puoi migliorare questa voce citando le fonti più precisamente. Segui i suggerimenti del progetto di riferimento. Lewis Carroll Lewis Carroll, pseudonimo di C...

 

This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.Find sources: 2004–05 Jordan League – news · newspapers · books · scholar · JSTOR (June 2015) Football league seasonJordan Premier LeagueSeason2004-2005ChampionsAl-Wehdat(8th title)RelegatedAl-AhliThat RasAFC CupAl-WehdatAl-FaisalyMatches played90Goals scored288&...

Pedestrianised public square in Birmingham, England Victoria SquareView of the square in 2009Former name(s)Council House SquareNamesakeQueen VictoriaMaintained byBirmingham City CouncilLocationBirmingham, EnglandPostal codeB1Coordinates52°28′44″N 1°54′10″W / 52.4790°N 1.9028°W / 52.4790; -1.9028NorthColmore RowEastNew StreetSouthHill StreetWestParadise Street Victoria Square at night, February 2008 Victoria Square is a pedestrianised public square in Birmin...

 

Subgenre of gospel music 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: Southern gospel – news · newspapers · books · scholar · JSTOR (June 2009) (Learn how and when to remove this message) Southern gospelStylistic originsSacred harp musicshape note singinghymnsspiritualshigh church musicCultural originsLat...

 

Cet article est une ébauche concernant la natation et une personnalité allemande. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Thomas Rupprath Informations Nages Dos, papillon Période active -2010 Nationalité Allemande Naissance 16 mars 1977 (47 ans) Neuss, Allemagne Club SG Bayer Wuppertal Palmarès Médailles obtenues Jeux olympiques 0 1 1 Ch. du monde grand bassin 1 3 0 Ch. du monde petit bassin 1...

2012 book by Thomas E. Mann It's Even Worse Than It Looks First edition hardcover imageAuthorThomas E. MannNorman J. OrnsteinLanguageEnglishSubjectPolitics of the United StatesPolitical parties in the United StatesPolitical polarizationGenreNon-fictionPublisherBasic BooksPublication dateMay 1, 2012Publication placeUnited StatesPages240ISBN9780465031337Preceded byThe Broken Branch: How Congress Is Failing America and How to Get It Back on Track(2006)  It's Even Worse Than It Looks: H...

 

American theologian J. P. MorelandBorn (1948-03-09) March 9, 1948 (age 76)EducationUniversity of Missouri (BA)University of California, Riverside (MA)Dallas Theological Seminary (ThM)University of Southern California (PhD)SpouseHope Moreland[1]Era20th-century philosophyRegionWestern philosophySchoolAnalytic philosophyInstitutionsBiola UniversityMain interestsOntology, epistemology, philosophy of science, philosophy of mind, theology Websitewww.jpmoreland.com James Porter Moreland...