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454:, spawning has never been observed. Planktonic disposition and transmission of their early larva indicate that the eggs are fertilized and dispersed in the plankton. While specific life histories differ among species and genera, postlarval barracudina size classes are found more frequently within proximity to
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rapidly swimming vertically through the water column like "silvery javelins" glowing "a brilliant yellow" from their bioluminescent organs. They were also observed hovering in the water and rapidly reorienting themselves from facing upwards to facing downwards as if scanning for predators and/or
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depths throughout the world's oceans, and are predators of fish, shrimps, and squids. While many barracudina species can be found at depths of 2000 m, their highest abundances tend to occur between 200 and 1000 m. Barracudinas are not thought to participate in
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possess very few scales and their skin is almost completely transparent, making it difficult for them to be seen underwater. Barracudinas, like many other deep-sea fishes, have darkly pigmented gut linings which are thought to help conceal
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The first report of luminescent liver tissue in fishes: evolution and structure of bioluminescent organs in the deep-sea naked barracudinas (Aulopiformes: Lestidiidae)
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against downwelling light, camouflaging their silhouettes to would be predators below. Other species have a bioluminescent organ which have evolved from liver tissue.
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at certain times of the year. However, this could also be a sampling artifact, since barracudina are only rarely caught by fisheries-independent sampling.
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Barracudinas are elongated, slender fish with large eyes, and a pointed snout containing fang-like teeth. This gives them some superficial resemblance to
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310:, a reproductive mode which is rare among vertebrates. The largest species of barracudina grow up to 100 cm (3.3 ft) in length.
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239:: 50 or so extant species are found almost worldwide in deep waters. Several genera are known only from fossils dating back to the
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the dim light of mesophotic waters around their bodies. The smaller, more derived species of barracudinas in the genera
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prey. If this behavior is common to all species of barracudina is not known, as it has not been observed since.
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that are thought to help with camouflage: most barracudina species have a subdermal layer of
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have a bioluminescent organ located ventrally along their stomachs which likely helps in
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Johnson, R.K. & Eschmeyer, W.N. (1998). Paxton, J.R. & Eschmeyer, W.N. (eds.).
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that imparts a kaleidoscopic color to their appearance in life and it is thought this
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habits of these fish. While both sperm and eggs are present in
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Barracudinas have some unique adaptations to life in the deep
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Rofen R.R. (1966). Olsen, Y.H. & Atz, J.W. (eds.).
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Fishes of the
Western North Atlantic Number 1. Part 5
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302:). Like their close relatives, barracudinas lack
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482:. San Diego: Academic Press. p. 126.
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254:(for which the family is named) is from
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814:AC642D14-3A58-FFD9-34F2-F8C2D93329D8
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416:reported behavioral observations of
378:Barracudinas are known to inhabit
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358:prey such as lanternfish (family
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410:First-hand accounts from the
229:are any member of the marine
446:Very little is known of the
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70:Scientific classification
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562:; Pauly, Daniel (eds.).
374:Ecology and life history
362:). Species in the genus
317:A juvenile barracudina,
385:diel vertical migration
564:"Family Paralepididae"
480:Encyclopedia of Fishes
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418:Lestrolepis intermedia
401:Cuvier's beaked whales
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294:), hammerjaws (family
796:Paleobiology Database
572:. April 2012 version.
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306:and are simultaneous
262:meaning "somewhat",
62:Lestidium atlanticum
413:Bathyscaphe Trieste
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319:Lestidiops affinis
270:meaning "scaled".
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708:iNaturalist
615:Wikispecies
459:escarpments
405:blue sharks
380:mesopelagic
364:Lestrolepis
360:Myctophidae
347:Lestrolepis
274:Description
175:Lestrolepis
465:References
397:lancetfish
339:Lestidiops
296:Omosudidae
280:barracudas
187:Magnisudis
163:Lestidiops
151:Arctozenus
393:swordfish
343:Lestidium
252:Paralepis
217:Uncisudis
199:Paralepis
193:Notolepis
169:Lestidium
93:Kingdom:
87:Eukaryota
844:Category
600:Wikidata
569:FishBase
550:16 March
448:spawning
442:Lejap u5
335:refracts
282:(family
241:Ypresian
133:Family:
107:Chordata
103:Phylum:
97:Animalia
83:Domain:
44:Holocene
40:Ypresian
606:Q582420
331:guanine
327:pelagic
248:generic
243:epoch.
143:Genera
123:Order:
113:Class:
827:125447
801:266044
788:712841
772:NZOR:
765:172138
739:162463
726:115955
486:
452:gonads
403:, and
234:family
822:WoRMS
809:Plazi
721:IRMNG
713:85962
661:52977
266:lepis
256:Greek
250:name
211:Sudis
760:NCBI
734:ITIS
700:2964
695:GBIF
687:8255
656:BOLD
552:2006
484:ISBN
389:tuna
349:and
260:para
246:The
747:NBN
682:EoL
674:DYS
669:CoL
643:AFD
630:ADW
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498:^
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
