Die Pou-klipkabeljou (Cephalopholis argus) is 'n vis wat aan die ooskus van Suid-Afrika voorkom vanaf die Aliwal-bank. Die vis is bruin en die hele lyf is bedek met poeier blou kolletjies terwyl daar 5 - 7 ligter vertikale strepe oor die agterste gedeelte van die lyf gaan. Die vis kom voor as alleenlopers in vlak koraalriwwe. In Engels staan die vis bekend as Peacock rockcod.
Die Pou-klipkabeljou (Cephalopholis argus) is 'n vis wat aan die ooskus van Suid-Afrika voorkom vanaf die Aliwal-bank. Die vis is bruin en die hele lyf is bedek met poeier blou kolletjies terwyl daar 5 - 7 ligter vertikale strepe oor die agterste gedeelte van die lyf gaan. Die vis kom voor as alleenlopers in vlak koraalriwwe. In Engels staan die vis bekend as Peacock rockcod.
Der Pfauen-Zackenbarsch (Cephalopholis argus) ist ein auffallend bunter Vertreter der Zackenbarsche (Epinephelidae).
Die Grundfarbe seines Körpers kann dunkelrot, bräunlich oder olivgrün sein. Meist ist der Vorderkörper dunkler, hinten kann der Pfauen-Zackenbarsch fünf bis sechs breite, helle, senkrechte Streifen haben. Hellblaue, schwarz umrandete Punkte überziehen den ganzen Körper und die Flossen. Am Ansatz der Brustflossen haben sie einen hellen Fleck, der je nach Stimmungslage der Tiere heller oder dunkler ist. Pfauen-Zackenbarsch werden 40 bis 60 Zentimeter lang. Die körperfernen Teile der Brustflossen können kastanienbraun sein, die dreieckigen Flossenmembranen an der Spitze der Rückenflossenstacheln sind orange bis golden.
Der Pfauen-Zackenbarsch kann leicht mit dem Blauflecken-Zackenbarsch (Cephalopholis cyanostigma) verwechselt werden.
Die Fische leben im Indopazifik, vom Roten Meer (selten) und der Küste Südafrikas, bis zu den Ryukyu-Inseln, Mikronesien, Tahiti und Pitcairn. Eine Population bei Hawaii wurde wahrscheinlich vom Menschen eingeschleppt. Der Pfauen-Zackenbarsch lebt sowohl an Außenriffen als auch in Lagunen bis in einer Tiefe von 40 Meter.
Pfauen-Zackenbarsche leben paarweise oder in kleinen Gruppen. Sie sind sowohl tagsüber als auch nachts aktiv und ernähren sich von kleinen Fischen, Krebstieren und Kopffüßern. Jungfische leben sehr versteckt zwischen Korallen. Ab einer Länge von 20 Zentimeter werden sie geschlechtsreif.
Der Pfauen-Zackenbarsch (Cephalopholis argus) ist ein auffallend bunter Vertreter der Zackenbarsche (Epinephelidae).
Cephalopholis argus sī Serranidae-kho ê hî-á.
Cephalopholis argus sī Serranidae-kho ê hî-á.
Geurapèe brinchék itam (nan Latèn: Cephalopholis argus) nakeuh saboh jeunèh eungkôt kareueng lam kawan geurapèe nyang na di la'ôt Acèh. Eungkôt nyoe kayém geudrop lé ureueng meula'ôt keu geupeubloe.[1]
Geurapèe brinchék itam (nan Latèn: Cephalopholis argus) nakeuh saboh jeunèh eungkôt kareueng lam kawan geurapèe nyang na di la'ôt Acèh. Eungkôt nyoe kayém geudrop lé ureueng meula'ôt keu geupeubloe.
Kawakawaloa (Cephalopholis argus) — E dua na ika.
Cephalopholis argus, the peacock hind, roi, bluespotted grouper, and celestial grouper, is a species of marine ray-finned fish, a member of the subfamily Epinephelinae, the groupers, and part of the family Serranidae, which also includes the anthias and sea basses. They come from the Indo-Pacific which is variously a commercial gamefish, an invasive species, and occasionally an aquarium resident. Its species name comes from its resemblance to the "hundred staring eyes" of the monster Argus who had a hundred eyes and was the shepherd of the goddess Hera in Greek mythology.
This is a medium-sized fish that can reach a length of 60 centimeters (24 in). Small individuals are dark brown with hundreds of small, dark-edged iridescent blue spots. Larger specimens sometimes develop four to six lighter vertical bars on the back half of its body.[3]
The species is extremely widely distributed, occurring in warm waters from the Red Sea to South Africa and east to French Polynesia and the Pitcairn group. It is also present in northern Australia, Lord Howe Island, and Japan, and has been introduced to the Hawaiian Islands. It makes use of a variety of habitats but prefers the exposed fronts of reefs, at depths of up to 40 m.[1]
Hunting, they lie on the bottom and surge forward, preferring juvenile surgeonfish and crustaceans. Alternatively they may hover motionless in the water column before attacking.[3]
This grouper may follow and cooperate with another predator species, such as an octopus or eel or camouflage themselves in a school of surgeonfish. Multiple individuals may cooperate to harass an eel to get it to flush prey for them.[3]
In the Red Sea, they hunt in the morning and evening.[3]
The species typically sit on a coral head, retreating when startled.[3]
Red Sea males defend harems of 2–6 females in territories ranging up to .5 acres (0.20 ha). Each female defends part of the territory from the other females. The male visits each female daily, raising his dorsal fin to signal his approach. The females emerges from hiding, erecting her own dorsal fin and changing to a lighter color. They swim together, rubbing flanks before he departs until the next day.[3]
Territorial disputes may involve "color fights" in which two males positioning themselves at right angles to each other. They then darken their color and repeatedly switch their bars from dark to light. The loser becomes pale and retreats. If the color fight ends in a draw, the two males may attack each other.[3]
In Micronesia, spawning usually occurs territorially at dusk. During courtship, both sexes darken except for a white keyhole-shaped patch at the center of the body.[3]
Cephalopholis argus is a hardy aquarium fish for those who have a large marine aquarium. Its large size combined with its aggressive nature means it is best housed either alone or with other large aggressive fish such as lionfish, and moray eels. As a predator it will eat any smaller aquarium inhabitants such as damselfish.
Known in Hawaii as roi, the state introduced the species in the 1950s to enhance local fisheries. Hawaii's Division of Aquatic Resources (DAR) finds that roi have become the reefs' dominant predator. The Roi population there has increased 15 fold since the 1980s.[4] From 1999 to 2005 there was a 23% increase in their population. Their biomass is now greater than that of all other reef fish predators combined.[5]
These predators threaten native reef fish such as parrotfish and goatfish. A University of Hawaii study estimated that in a three-square-mile area off the Kona Coast of Hawaii Island, Roi eat 90 tonnes (89 long tons; 99 short tons) of reef fish annually— equivalent to 8.2 million fish.[4]
Prized as delicious eating in other Pacific regions, in Hawaii's waters roi may contain the ciguatera toxin, which builds up in humans and causes serious illness.[4] A study published in 2007 found that 18% of Roi sampled from Oahu and Hawaii islands had toxins above levels safe for consumption. Due to high variability of toxin levels between individuals in the same area, toxicity cannot be predicted based on location. There is a weak correlation between the length of Roi and their toxicity, however, due to high variability, this is not a reliable predictor of toxicity.[5] There is currently no commercially available testing kit. Because of the toxicity issues, Roi does not have a functional fishery, with just an average of $1000 per year in sales.[5]
Analysis of stomach contents of Hawaiian roi found that diets consist of 97.7% fish and 2.3% crustaceans.[5] Of the fish eaten, there were 27.1% Scaridae (Parrotfish), 18.7% Acanthuridae (Surgeonfish), 17.6% Squirrelfish, 13.7% Monacanthidae (Filefish), 9.3% Priacanthidae (Bigeyes), 4.3% Chaetodontidae (Butterflyfish), 2.8% Aulostomidae (Trumpetfishes), and 6.9% other consisting of 9 families. Roi are estimated to eat 0.8% of their body weight each day.[5]
Roi feed primarily on juvenile fish that have recruited the reef.[5] The family of fish that make up the majority of their diet Scaridae or Parrotfish, are crucial to the coral reef ecosystem by removing algal growth on coral colonies through feeding. Parrotfish also play a large role in the production of sand. Hawaii has the highest rate of endemism of its nearshore marine fish species at 24.3%.[5] The lack of natural predators to control Roi populations along with their high efficiency is a major threat to the unique fish fauna found in Hawaii. Ichthyologist Dr. Jack Randall describes the impact of Roi in Hawaii as greater than the impact of fishing and aquarium collection combined.[6] Estimates of consumption on the Kona coast suggest that Roi consume 11% of the total reef fish biomass and 72% of the total number of fish.[5]
On Maui, spearfishers participate in "Roi Roundup" tournaments that target these problematic fish, attempting to reduce their numbers and impact. This practice has spread to other islands, where there are similar tournaments that target roi and other invasive fish species. These events not only reduce the roi population, but also work to boost public awareness about this issue.[4]
The species is classified as Least Concern by the IUCN. and is widespread and common throughout its range. It is exploited in commercial and recreational fisheries and for the aquarium trade.[1]
Cephalopholis argus, the peacock hind, roi, bluespotted grouper, and celestial grouper, is a species of marine ray-finned fish, a member of the subfamily Epinephelinae, the groupers, and part of the family Serranidae, which also includes the anthias and sea basses. They come from the Indo-Pacific which is variously a commercial gamefish, an invasive species, and occasionally an aquarium resident. Its species name comes from its resemblance to the "hundred staring eyes" of the monster Argus who had a hundred eyes and was the shepherd of the goddess Hera in Greek mythology.
Cephalopholis argus Cephalopholis generoko animalia da. Arrainen barruko Serranidae familian sailkatzen da.
Espezie hau Agulhasko itsaslasterran aurki daiteke.
Cephalopholis argus Cephalopholis generoko animalia da. Arrainen barruko Serranidae familian sailkatzen da.
Cephalopholis argus
Le Mérou céleste (Cephalopholis argus) est une espèce de poissons de la famille des Serranidae.
Dessin de mérou céleste
à Kona
à La Réunion.
Cephalopholis argus
Le Mérou céleste (Cephalopholis argus) est une espèce de poissons de la famille des Serranidae.
Dessin de mérou céleste
à Kona
à La Réunion.
Cephalopholis argus (Schneider, 1801) è un pesce osseo marino appartenente alla famiglia Serranidae[2].
C. argus è endemico dell'Indo-Pacifico tropicale dal mar Rosso e dalle coste dell'Africa orientale (a sud fino alla città sudafricana di Durban) alla Polinesia francese e all'isola di Pitcairn. Il limite settentrionale dell'areale si trova presso le isole giapponesi Ryūkyū e Ogasawara, a sud raggiunge l'Australia settentrionale e l'isola di Lord Howe[1][3]. Appare più frequente nell'oceano Pacifico che nell'oceano Indiano[1]; nel mar Rosso è raro[4] . È stato introdotto alle Hawaii nel 1956 dalle isole della Società allo scopo di favorire la pesca commerciale[5]; si è acclimatato comportandosi come una specie invasiva e danneggiando le specie endemiche dell'arcipelago[6].
Il suo ambiente di vita comprende vari habitat legati alle barriere coralline, soprattutto le parti esterne esposte alle onde[1] con acque chiare e abbondante crescita di madrepore[4]. I giovanili sono comuni in zone con acque basse, scarso idrodinamismo e alta densità di coralli[3].
Si può trovare a profondità da 1 a 50 metri, di solito non oltre 15 metri[3].
Ha l'aspetto tipico delle cernie, piuttosto slanciato, con testa grande. La pinna caudale è arrotondata, le pinne ventrali di piccole dimensioni. La pinna dorsale, unica, ha 9 raggi spiniformi e 15-17 raggi molli (di solito 16-17); la pinna anale ha 3 raggi spinosi e 9 molli. Il colore di fondo è solitamente bruno scuro con numerose piccole macchie blu bordate di nero sparse su tutto il corpo. Spesso vi sono 6-7 fasce verticali più chiare nella parte posteriore del corpo, non sempre ben distinte, e una macchia chiara sul petto sotto le pinne pettorali. La colorazione è abbastanza variabile come toni e contrasto[3][4].
Misura fino a 60 cm, di solito non oltre 40 cm[3]; la taglia è variabile da una località all'altra[1].
Vive fino a 40 anni ma la longevità varia ampiamente secondo le località[1].
Forma harem composti da un maschio dominante e diverse femmine. Il maschio dominante mostra territorialità: il territorio è suddiviso in porzioni ognuna delle quali occupata da una femmina[1][3]. La dimensione del territorio dipende dalla taglia del maschio dominante[1]. Talvolta solitario[3]. Ha abitudini variabili nelle diverse località: nel mar Rosso. ad esempio, si nutre all'alba e al tramonto mentre nel Madagascar caccia di notte[3].
Basata su pesci di varie specie (ad esempio pesci chirurgo, pesci damigella, carangidi, labridi, etc.), secondariamente, si nutre anche di crostacei e anellidi[3][7].
È ermafrodita proterogino. Nelle Hawaii si riproduce da maggio a ottobre. La maturità sessuale viene raggiunta a oltre un anno di età e 20 cm di lunghezza[1].
È attivamente pescato in alcune zone con metodologie artigianali come lenze, fucile subacqueo e nasse[3] ma in molte aree, tra le quali quasi tutte le isole del Pacifico, non è consumato perché provoca frequentemente la ciguatera. La specie è considerata pericolosa, ad esempio, nella Polinesia francese, nelle isole Marshall e anche nelle Hawaii dove, per ironia della sorte, è stato introdotto proprio per favorire la pesca. Si trova comunemente sul mercato ittico di Hong Kong[1].
Si tratta di una specie abbondante in quasi tutto l'areale, con popolazioni stabili. In alcune piccole aree si hanno segni di sovrapesca molto limitati ma in vaste zone non viene consumato a causa del rischio di ciguatera. Per questi motivi la Lista rossa IUCN classifica questa specie come "a rischio minimo"[1].
Cephalopholis argus (Schneider, 1801) è un pesce osseo marino appartenente alla famiglia Serranidae.
Cephalopholis argus is een straalvinnige vissensoort uit de familie van zaag- of zeebaarzen (Serranidae).[2] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1801 door Bloch & Schneider.
De soort staat op de Rode Lijst van de IUCN als niet bedreigd, beoordelingsjaar 2008. De omvang van de populatie is volgens de IUCN stabiel.[1]
Bronnen, noten en/of referenties
Påfågelgrouper[3] (Cephalopholis argus) är en fisk i familjen havsabborrfiskar som finns i Indiska oceanen och Stilla havet från Röda havet och Sydafrika till sydligaste Japan och norra Australien.
Arten har en avlång kropp med mörkbrun till gulaktig grundfärg, täckt med många små, blå fläckar med svart kant.[4] Även huvudet och fenorna har fläckar.[5] På kroppens bakre del har den 5 till 6 bleka ränder, och större delen av bröstet är också blekt. Den främre delen av ryggfenan har 9 taggstrålar, medan den bakre har 15 till 17 mjukstrålar. Analfenan har 3 taggstrålar och 9 mjukstrålar. Den yttre delen av bröstfenorna kan vara färgade i rödbrunt. Längden kan nå upp till 60 cm, även om den vanligtvis inte blir mycket mer än 40 cm lång.[6]
Påfågelgroupern förekommer i många olika biotoper, men är vanligast nära botten i närheten av rev på grunt vatten (ner till 10 m), även om den kan gå ner till djup på 40 m.[1] Ungfiskarna föredrar grunda, täta buskage av koraller. Födan består främst av fisk, och i mindre utsträckning av kräftdjur.[6]
Litet är känt om artens fortplantning, men man vet att hanen är polygam och kan ha upptill 12 honor. Han försvarar även revir, desto större ju större hanen själv är.[1] Honorna har egna revir inom hanens. Arten har könsväxling, så att en individ byter kön från hona till hane under sin livstid.[7]
Påfågelsnappern är föremål för ett betydande kommersiellt fiske, trots att bestånd vid Stilla havsöar har orsakat ciguateraförgiftning. Den är klassificerad som livskraftig ("FC") av IUCN, och beståndet betraktas som stabilt, även om IUCN ser överfiske som ett potentiellt hot.[1] Arten är också en populär akvariefisk som fordrar stora akvarier med gott om klippstycken. Den kräver hög vattenkvalitet och är aggressiv mot andra fiskar.[8]
Utbredningsområdet omfattar Indiska oceanen och Stilla havet från Röda havet och Sydafrika österut till Franska Polynesien och Pitcairnöarna, norrut till sydligaste Japan och söderut till norra Australien[6] (från Western Australias kust till centrala Queensland[5]). Den har även blivit inplanterad till farvattnen kring Hawaii och kusten kring södra Florida.[7]
Påfågelgrouper (Cephalopholis argus) är en fisk i familjen havsabborrfiskar som finns i Indiska oceanen och Stilla havet från Röda havet och Sydafrika till sydligaste Japan och norra Australien.
Cá mú chấm lam (danh pháp hai phần: Cephalopholis argus) là một loài cá trong họ Cá mú. Là loài cá có kích thước trung bình cá có thể đạt đến chiều dài 60 xentimét (24 in). Các cá thể nhỏ có màu nâu tối với hàng trăm đốm nhỏ, màu xanh óng ánh. Mẫu vật lớn hơn đôi khi ó 4-6 thanh dọc sáng ở nửa sau của thân[2].
|isbn= (trợ giúp).
Bài viết chủ đề bộ Cá vược này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Cá mú chấm lam (danh pháp hai phần: Cephalopholis argus) là một loài cá trong họ Cá mú. Là loài cá có kích thước trung bình cá có thể đạt đến chiều dài 60 xentimét (24 in). Các cá thể nhỏ có màu nâu tối với hàng trăm đốm nhỏ, màu xanh óng ánh. Mẫu vật lớn hơn đôi khi ó 4-6 thanh dọc sáng ở nửa sau của thân.
斑點九棘鱸（学名：Cephalopholis argus，又稱斑點九刺鮨、眼斑鱠）為輻鰭魚綱鱸形目鱸亞目鮨科九棘鲈属的一個鱼类的種。
本魚分布在印度太平洋區，包括红海、印度洋非洲东岸至太平洋中部、東非、澳洲、法屬波里尼西亞、豪勛爵島，北至日本南部、小笠原群島以及南海诸岛和澎湖列岛、台灣恒春等海域。
水深1至50公尺。
本魚身體為暗褐色或黑紫色，體側及各鰭布滿具有黑圈之灰色斑點。眼小，短於吻長。口大；上頜稍能活動，可向前伸出，末端延伸之眼後之下方；上下頜前端具小犬齒，下頜內側齒尖銳，排列不規則，可向內倒狀；鋤骨和腭骨具絨毛狀齒。體橢圓形為側扁，吻部較為突出。體被細小櫛鱗；側線鱗孔數46至51枚，縱列鱗數95至110枚。背鰭無深刻，背鰭硬棘4枚，軟條15至17枚；臀鰭硬棘3枚，軟條9枚；腹鰭腹位，臀鰭第二棘較第三棘略長。體長可達40公分。
本魚常棲息於热带珊瑚礁區[1]，以小魚、無脊椎動物等為食物。
為肉質鮮美的食用魚，適合清蒸或紅燒，也可作為觀賞魚。
