我的新新新寵---金叵羅魚

sodagreensimon

此魚稱港俗稱為金叵羅、金松果、金松毬等。
根據家中的海水魚指南, 這種魚如活化石, 有數百萬年歷史, 牠們的身體被幾片鱗片組合成的硬殼包起來。生活在海洋深水水域, 也因如此, 擁有發光器官引誘獵物。在香港並不常見, 我數年前在魚街見過一次, 今日又見, 足見有緣, 明知此魚難開口, 姑且一試。





魚唇下藍色一點, 即為金叵羅的發光器官。

duncan

good, but a very shy fish need to feed live food.

sodagreensimon

yes, 所以預咗有排煩!!!

YVONNE

加油,
有機會我都買番條, so cute!

duncan

simon add oil, support U

sodagreensimon

YVONNE, 你以前條火炎木盒餵咩架??

YVONNE

街坊買生蝦番嚟, 清腸後放入冰箱急凍, 要餵嗰陣先用水沖乾淨同等蝦肉變軟, 條衰仔食得慢, 其他魚餐餐搶左一半去

carolee

好靚呀! 真係好, 又有新寵!

sodagreensimon

養魚就有呢個好處, 成日都可以有新寵~~~

pinko

好靚呀
是何科?
咬珊瑚嗎?
幾银?

sodagreensimon

金毬科, 呢一科得佢呢一種魚
學名:Monocentris japonica
reef safe
$: $%)

pinko

thank you

風中飛鸚

深水魚,冇水壓死硬,得閒囉上黎壓下佢睇下得

sodagreensimon

查到新資料
下頜有2個磷光器官。 光是由發光細菌發出的，在白天發出橙光，晚上為藍綠色; 它用於在晚上吸引蝦和其他浮游動物。

sodagreensimon

Monocentris japonica
(Dick Bride-Groom Fish)

Family : Pinecone fishes ; Found in the sublittoral zone[1], under ledges and caves of rocky reefs[2]. Forms schools[3]. Adults  are found between 20 and 200 m  depth, juveniles  occasionally in shallower water[4]. Regularly displayed in public aquaria .

Family Monocentridae

Distribution: tropical and subtropical Indo-Pacific , primarily at depths of 30 - 300 m. Body scales large, heavy and platelike. A single large spine in pelvic fin which can be locked erect ; soft rays 2 or 3; 4-7 strong spines in first dorsal fin alternate from side to side; second dorsal fin with 9-12 soft rays. No anal fin spines, 10-12 softrays. Pectoral fin with 13-15 rays ; 8 branchiostegal rays . Lower jaw with 2 phosphorescent organs . The light is produced by luminescent bacteria and the organ appears as an orange spot in daylight or a blue-green one at night; it is used to attract shrimps and other zooplankton at night. About 22 cm maximum length [5]. Reproduction unknown but assumed to be non-guarders (RF).The family Monocentridae belongs to the Class Actinopterygii (ray-finned fishes ) and the Order Beryciformes. It contains 2 genera and 4 species. It may be found in Marine environments and is primarily Marine. Some members of this family are used in the aquarium trade. Reproductively, most members of this family are nonguarders. The main mode of swimming of adult fish in this family is ostraciiform. Etymology of this family name : Greek, monos = only + Greek, kentron = sharp point
Physical Description
Species Monocentris japonica

Pineconefish have round, compressed bodies that are pale to dark yellow in color. Their bodies are covered with large, fixed , armored plates (called scutes ), each of which has a narrow black edge and a small spine in the center. The plates and the coloring together cause the fish to resemble pinecones�hence their common name . A pineconefish�s jaw is black, with a bioluminescent patch on each side at the tip . Each pelvic fin has a single, large spine on its front edge that can be locked erect . The dorsal fin has no membrane but does have spines that point in alternate directions , one to the right and one to the left.

Pineconefish reach a maximum length of 17 cm (6.7 in).

Pineconefish have a light patch on the side near the tip of each lower jaw. This patch appears blue-green at night and orange in the daylight. It contains large concentrations of the bioluminescent bacteria, Vibrio fischeri. These symbiotic bacteria get food from the fish�s bloodstream, and in turn provide the fish with a biochemically produced blue-green light. It is believed that pineconefish use the light to attract prey , confuse predators , and communicate with each other. Little is known about how the light is turned on and off in the Monocentris species of pineconefish, but a related species, Cleidopus gloriamaris (pineapplefish) has been observed to control its light by shutting off the oxygen supply to the bioluminescent bacteria.
Size/Age/Growth

These fish have been known to live more than 10 years in a protected environment..
Habitat

They commonly shelter under ledges and in caves of rocky reefs, at depths of 20-200 m (65-650 ft ). Juvenile pineconefish inhabit shallower water, often no deeper than 3 m (10 ft).

Typically found in water with a depth of 0 to -4,900 meters (0 to -16,076 feet).[6]