分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gobiiformes (Gobies)
鱸形目 (Gobies) >
Gobiidae (Gobies)
鰕虎魚科 (Gobies) > Gobiinae
Etymology: Elacatinus: Greek, elakatines = fusiform fishes preserved in salt (Ref. 45335); jarocho: Named for Jarocho, the common local name for Veracruzanos, the native people of Veracruz, Mexico; noun in apposition. Authors are pleased to honor the Jarocho, who have embraced the protection and conservation of the Veracruz.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 礁區魚類; 深度上下限 3 - 25 m (Ref. 58341). 亞熱帶的; 21°N - 19°N, 96°W - 97°W
Western Atlantic: Caribbean. Known only from the Veracruz reef system near Veracruz, Mexico (as far north as Isla De Lobos [21°29.36'N, 97°13.53'W] and as far south as Anton Lizardo [ca. 19°04.41'N, 95°50.21'W]).
西大西洋: 加勒比海。 已知只來自在墨西哥非拉克斯州附近的非拉克斯州礁系統了。
標本被觀察到如 Isla De 北美北部產的灰色大狼 (21 ° 29.36'N, 97 ° 13.53' W) 的遠北方而且向南遠至安東 Lizardo 。 (大約 19 ° 04.41'N, 95 ° 50.21' W)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 2.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 58341)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 7; 背的軟條 (總數) : 11 - 12; 臀棘: 1; 臀鰭軟條: 9 - 11. Elacatinus jarocho is readily distinguished from other species of Elacatinus (s.s.) by the disjunct yellow lateral stripe that appears as a dash over the eye and on the caudal fin, a yellow medial stripe on the snout, and a black ovoid to rectangular spot at the base of the caudal fin, immediately ventral to the yellow dash (Ref. 58341).
Elacatinus jarocho 是與輕易地區分的其他種的 Elacatinus(s.s.) 藉由呈現在眼上的破折線的分離的黃色側面的斑紋與在尾鰭上, 在吻部上的一條黃色的中間斑紋, 與在尾鰭基底的矩形斑點的黑色卵形體, 緊鄰腹的到黃色的破折線.(參考文獻 58341)
This species was found between 3-25 m depth on high profile coral reefs typically dominated by Montastrea cavernosa (Linneaus), M. annularis (Ellis and Solander), Colpophyllia natans (Houttuyn) and skeletal reef framework. Elacatinus jarocho joins E. atronasus (Böhlke & Robins) as the only two species in the genus to school in the water column. Small to large aggregations (12-60 individuals) of E. jarocho were normally found close to the reef near high profile corals or overhangs. Such reef structure presumably provides shelter from direct sunlight because aggregations were usually observed in darker, shaded areas rather than in direct sunlight. Individuals of E. jarocho, unlike E. atronasus, were never observed stationary on any substrate, but rather hovered continuously about 5–25 cm above the reef, frequently in association
with Coryphopterus hyalinus Böhlke & Robins or C. personatus (Jordan & Thompson). This species was not observed to clean other species or interact in other symbiotic relationships. Small and large individuals coexisted in the same aggregations and did not display territorial or hierarchical behaviors. Individual fish would often, though not always, move slowly toward cover when approached to less than 1 m by scuba divers (Ref. 58341).
Elacatinus jarocho 在被典型地控制的 Montastrea cavernosa(Linneaus) ， M. annularis(艾理斯與 Solander) 的引人注目珊瑚礁上被發現在 3-25 公尺深之間, Colpophyllia natans(Houttuyn)
而且骨骼的礁架構。 Elacatinus jarocho 結合 E. atronasus(Bohlke&羅賓) 當那只有二
到在水團中的魚群在本屬中的種。 E. jarocho 的小群到大群魚群 (12-60個個體) 通常被發現接近在引人注目珊瑚或突出部份附近的礁。 如此的礁構成可能
因為群集通常在比較深色又陰暗的區域被觀察，所以提供來自直接的日光的庇護所而不是在直接的日光方面。 不像 E. atronasus 的 E. jarocho 的個體從不被觀察靜止的
在任何的底部上, 但是相當不斷地盤旋.大約 5- 在礁上面的 25 公分, 時常在結合中
與 Coryphopterus hyalinus Bohlke& 羅賓或 C. personatus(Jordan&湯普生). 這種
是沒有被觀察到在其他的共棲關係清理其他的種或者互相影響。 小而大的個體
在相同的群集中共存.而且沒有顯示具有領域性或階層的行為。 個別的魚
將會時常, 雖然不常, 慢慢地對於表面當被接近時移動少於水中呼吸器潛水者的 1 公尺.(參考文獻 58341)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
西大西洋: 加勒比海。 已知只來自在墨西哥非拉克斯州附近的非拉克斯州礁系統了。
標本被觀察到如 Isla De 北美北部產的灰色大狼 (21 ° 29.36'N, 97 ° 13.53' W) 的遠北方而且向南遠至安東 Lizardo 。 (大約 19 ° 04.41'N, 95 ° 50.21' W)
Taylor, M.S. and L. Akins, 2007. Two new species of Elacatinus (Teleostei: Gobiidae) from the Mexican coast of the Gulf of Mexico. Zootaxa 1425(1):45-51. (Ref. 58341)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
瀕危 (EN) (B2ab(iii)); Date assessed: 10 January 2014
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00477 - 0.02194), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.3 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).
