Variola albimarginata Baissac 1953

Variola albimarginata sī Serranidae-kho ê hî-á.

Chham-khó chu-liāu

• "台灣魚類名錄". 台灣魚類資料庫. 中央研究院. 2011-02-11 khòaⁿ--ê.

The white-edged lyretail (Variola albimarginata), also known as the white-edge coronation trout, lyretail grouper, lyretail trout, white-edged lyretail-cod or white-fringed moontail-bass, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the Indo-Pacific region but it is an uncommon species.

Description

The white edged lyretail has an oblong shaped body on which the length of the head is longer than the depth of the body, the standard length of its body is 2.8-3.5 times its depth.^[2] The preopercle is rounded with fine serrations along its edge with the lower edge being fleshy. There are three flat spines on the gill cover, which has a straight upper edge. The dorsal fin contains 9 spines and 14 soft rays while the anal fin contains 3 spines and 8 soft rays.^[3] The caudal fin is crescent shaped with its upper and lower lobes extended and are around two times the length of the fin's middle rays.^[2] The overall colour of this grouper is reddish and it is covered in blue spots. The caudal fin has pale upper and lower margins^[4] and the central rays of the caudal fin rays have white tips creating a thin white line along its margin.^[5] There are occasionally faint, pale saddles on the back.^[4] It also has yellow wavy lines on its body and reddish spots on the head. The dorsal, anal and caudal fins have red to purple spots.^[5] This species attains a maximum recorded total length of 65 centimetres (26 in).^[3]

Distribution

The white-edged lyretail has a wide Indo-Pacific distribution. It ranges from the East African coasts between Kenya and Mozambique including Zanzibar and Mafia Island, across the Indian Ocean to the Seychelles, southwestern India and Sri Lanka and into the Pacific Ocean, north as far as the Ryukyu Islands of southern Japan, east to Samoa and the Cook Islands and south to Australia.^[1] In Australia it is found from the Scott Reef in Western Australia, the Ashmore Reef in the Timor Sea to the Capricorn Group in the southern Great Barrier Reef of Queensland.^[4]

Habitat and biology

The white-edged lyretail is a generally uncommon species which is found either as a solitary fish or in small groups on the seaward edge of reefs. The juveniles are found inshore on algae and soft coral reefs where they usually swim quite high in the water column like basslets^[3] It is largely piscivorous. They are not known to form spawning aggregations.^[1] Females are sexually mature at a standard length of 32 centimetres (13 in).^[2]

Taxonomy

The white-edged lyretail was first formally described by J. de Baissac in 1953 with the type locality given as Mauritius.^[6]

Utilisation

The white-edged lyretail is considered to be excellent eating but its relatively small size and scarcity mean that it is of little interest to fisheries.^[3] It is taken with hand lines, spears and traps.^[2] This species was overlooked or misidentified as the yellow-edged lyretail and was not confirmed as a valid species until 1963.^[2]

References

Variola albimarginata Variola generoko animalia da. Arrainen barruko Serranidae familian sailkatzen da.

Banaketa

Espezie hau Agulhasko itsaslasterran aurki daiteke.

Erreferentziak

• FishBase.org

Ikus, gainera

• Variola
• Serranidae

Variola albimarginata 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 1953 door Baissac.

De soort staat op de Rode Lijst van de IUCN als niet bedreigd, beoordelingsjaar 2008. De omvang van de populatie is volgens de IUCN dalend.^[1]

白邊側牙鱸（学名：Variola albimarginata，又稱白緣星鱠，俗名為闊嘴格仔、鱠魚、過魚，為輻鰭魚綱鱸形目鱸亞目鮨科的其中一個種。

分布

本魚分布於印度太平洋區，包括東非、薩摩亞、日本南部、印尼、台灣等海域。

深度

水深10至90公尺。

特徵

本魚體長橢圓形。頭中大，頭長稍大於體高。眶間區稍圓突。上頜前端具2犬齒，中央具一向後倒伏的牙齒，兩側外列具稀疏排列的圓錐齒，內列具絨毛狀齒。鋤骨及腭骨均具絨毛狀齒。與另外一種近似種側牙鱸的主要區別為本種尾鰭有白色緣，至於體色略有變化，從鮮紅到暗紅，其上密布不規則之斑點，胸鰭末端黃色，背鰭具硬棘4枚，軟條14枚；臀鰭硬棘3枚，軟條8枚；腹鰭腹位，末端延伸不及肛門開口；胸鰭圓形，中央之鰭條長於上下方之鰭條，且長於腹鰭，尾鰭彎月形。體被細小櫛鱗；側線鱗孔數66至75枚；縱列鱗數109至127枚。體長可達60公分。

生態

通常棲息在水質清澈，珊瑚生長茂密的岩礁或珊瑚礁斜坡上，常獨游，偶亦以小群聚出現。晝間在礁區游盪，四處覓食，獵捕其他魚類。

經濟利用

體型大，具經濟性的食用魚，味美，適合清蒸。

参考文献

• 台灣魚類資料庫