Choranthias salmopunctatus, Salmon-spotted jewelfish

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Choranthias salmopunctatus (Lubbock & Edwards, 1981)

Salmon-spotted jewelfish
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Choranthias salmopunctatus
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Actinopteri > Perciformes/Serranoidei (Groupers) 鱸形目 (Groupers) > Serranidae (Sea basses: groupers and fairy basslets) 鮨科 (Sea basses: groupers and fairy basslets) > Anthiadinae
Etymology: Choranthias: Name from Greek 'chora' for room or space and 'anthias' meaning a seafish; an allusion to the interruption of the lateral line in the species of this genus. gender is masculine..

Environment: milieu / climate zone / depth range / distribution range 生態學

; 海洋 居於水底的; 深度上下限 30 - 55 m (Ref. 58184). 熱帶

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Eastern Central Atlantic: endemic to St. Paul's Rocks.
中東大西洋: 聖保羅岩礁的特有種.(13121)

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 6.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 13121)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 10; 背的軟條 (總數): 15; 臀棘 3; 臀鰭軟條: 7. This species distinguished from it congeners by the following set of characters: A 7; 46-51 lateral-line scales; total gill rakers on first arch 32-35 (Ref. 90266).

生物學特性     字彙 (例如 epibenthic)

This species, which was seen again at St. Paul's Rocks after almost 30 years of its first description, was observed between 35 and 55 m and was most abundant between 40 and 45 m on almost-vertical rock drop offs. It aggregates in small groups of 5 to 10 individuals, swimming close to crevices into which they hide when threatened. Several such groups were observed, with each group taking refuge in its own crevice when approached by a diver. Apparently, there is no exchange of individuals between groups or crevices, suggesting that appropriate shelter is one of the factors limiting the distribution of this species. Individuals were observed to leave a shelter only when a school of juvenile Chromis multilineata (Guichenot, 1853) approached the cliffs. Both species are quite similar in shape and, at depths with available light, are almost identical in coloration (faded-brown). Presumably, A. salmopunctatus gets protective advantages of schooling with a similar species in larger, multispecific groups while foraging on open water plankton. Although neither A. salmopunctatus nor other endemic fishes in the area may be under great risk of extinction (as their habitat is not directly affected by human activities), such extreme restricted geographic distribution is sufficient to consider the species threatened, as they could be vulnerable to natural impacts. A. salmopunctatus and Prognathodes obliquus have been reported show low densities and seem to have low absolute numbers. The latter may be a bias due to the fact that only the shallow portion of the depth range is being sampled or, alternatively, the species really have low population densities. A precise evaluation of the risks of extinction urgently requires extensive work to better estimate the distribution and population size of this species (Ref. 58184).

再一次在聖保羅岩礁被見到的這種在幾乎 30 年的它的第一個描述在 35 與 55 公尺之間被觀察而且在 40 與 45 公尺之間是最豐富的之後幾乎之上-垂直的岩石峭壁。 它 5 到聚集形成小群魚群 10個個體, 游泳接近他們當危險時隱藏的裂隙進入。 一些如此的群被觀察, 藉由在一個潛水者的它自己裂隙當被接近時中佔據藏身處的每個群。 顯然地, 沒有在群或者被顯示出適當的庇護所的裂隙之間的個體的交換是因素之一限制這種的分布。 只有當一個幼年 Chromis multilineata(Guichenot, 1853) 的魚群接近.懸崖的時候,個體被觀察離開一個庇護所。 兩個種都在外形上相當相似與, 在深度具有有用的光, 幾乎同一體色.(暗淡的-褐色) 推測為, A. salmopunctatus 得到保護利益與一個相似的種形成魚群在比較大的, 當捕食開放水域浮游生物的時候,多特性聚集。 雖然沒有一個 A. salmopunctatus 也不在區域的其他的本地魚在滅絕 (當他們的棲息地直接地不被人類活動影響) 的大風險下面可能是, 但是如此的限制地理的分布極端充份考慮此魚種威脅, 當他們對自然衝擊可能是易受傷害的。 A. salmopunctatus Prognathodes obliquus 曾經報告顯示低的密度而且似乎有低的絕對數字。 後者可能是一個偏見由於事實哪一只有深度範圍的水淺部分正在被抽樣調查或者, 或者,此魚種真的有低的族群密度。 滅絕的風險的精確評估緊急地需要廣泛的作品更估計分布與這種的族群大小。 (參考文獻 58184)

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

中東大西洋: 聖保羅岩礁的特有種.(13121)

主要參考資料 Upload your references | 參考文獻 | 合作者 : Heemstra, Phillip C. | 合作者

Lubbock, R. and A. Edwards, 1981. The fishes of Saint Paul's Rocks. J. Fish Biol. 18(2):135-157. (Ref. 13121)

IUCN 瀕危狀態 (Ref. 125652)

  無危 (LC) ; Date assessed: 10 June 2013

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





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Estimates based on models

Preferred temperature (Ref. 115969): 26.3 - 27.3, mean 27.3 °C (based on 3 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00626 - 0.02905), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245).
營養階層 (Ref. 69278):  3.3   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .