Lanternfish

Oceanodromous. Migrating within oceans typically between spawning and different feeding areas, as tunas do. Migrations should be cyclical and predictable and cover more than 100 km.

Dorsal spines (total): 0; Dorsal soft rays (total): 14 - 15; Analspines: 0; Analsoft rays: 13 - 15

Oceanic and mesopelagic. Found between 425-850 m during the day and in the upper 100 m at night. Small specimens found in the upper 50 m (night).

Lampadena luminosa

This questionably tropical-semisubtropical species (Backus et al., 1977) is rare in the study area. It is represented in the Ocean Acre collections by only eight juveniles, 20–64 mm, taken from August through September. The four largest (49–64 mm) were females, and the remainder could not be sexed. Lampadena luminosa grows to about 180 mm and attains sexual maturity at sizes larger than 150 mm (Nafpaktitis et al., 1977). No fish were taken in discrete-depth samples. Nondiscrete catch data show that the species is found as shallow as 90–100 m by night, which is similar to the upper nocturnal depth limit for the species near Hawaii (Clarke, 1973).

分布於世界三大洋熱帶及溫帶海域。臺灣則發現於東沙群島附近周邊水域。

一般以底拖網捕獲，不具食用經濟價值，通常做為下雜魚用。

體延長，側扁，後部略細。頭長形而大。吻短，前端略陡。眼大。口大，上頜骨狹長而延伸至前鰓蓋後緣，末端不擴大；上下頜、鋤骨、腭骨均具齒帶。體被大而薄圓鱗，易脫落；側線平直。背鰭單一，位於體中部，具軟條15，後部另具一脂鰭；臀鰭基底略等於背鰭基底，具軟條13-14(通常為14)；尾鰭叉形，尾鰭副鰭條堅硬。各部位之發光器位置於下：眶前發光器(Ant)無；鼻部背位發光器(Dn)無；鼻部腹位發光器(Vn)小而圓形，周圍具黑色組織；眶下位發光器(So)無；鰓蓋位發光器(Op)2個，位於前鰓蓋後緣下方，Op1明顯較Op2小，均在眼眶下緣縱線之下；胸鰭上方發光器(PLO)，距側線比距胸鰭基部近；胸鰭下方發光器(PVO)2個，兩者互為垂直排列；胸部發光器(PO)5個，PO4位置突然昇高，位於PO3稍後上方，位置略高於PVO1；腹部發光器(VO)4個，水平排列；腹鰭上位發光器(VLO)位於腹鰭和側線之間，較接近側線；臀鰭上方發光器(SAO)3個，三者排列呈角狀，SAO3在側線下緣；體後側位發光器(Pol)1個，在脂鰭下方，側線下緣；臀鰭前部發光器(AOa)5-6個，水平排列；臀鰭後部發光器(AOp)2個，均在INGL前方；尾鰭前位發光器(Prc)3個，前二個水平排列，Prc3在側線上。尾部發光腺SUGL及INGL幾乎等長，周圍具黑色組織。

大洋性中層巡游魚類，具日夜垂直分布習性，白天一般棲息深度可達425-850公尺左右，晚上則上游至水深50-100公尺附近處覓食，以小蝦等甲殼類為食。

Atlantic: between 20°N and 20°S but extensions into higher latitudes in western boundary currents (Gulf Stream to 43°N; Brazil to 36°S; Agulhas to 39°S; Kuroshio to 34°N)

Found at depths of 50- 850 m, possibly the northern limit of its range.

nektonic

Known from seamounts and knolls