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Diagnostic Description

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The characteristic scythe mark crossing the pectoral base is yellowish-tan to green in juveniles and subadults.Description: Characterized further by greyish to brown body color; white chin and belly; white diagonal line behind mouth; longitudinal scale rows 43-50; presence of deep groove in front of eye; nearly straight dorsal and ventral head profiles; body with series of longitudinal ridges bearing small spiny tubercles, upper ridge extending to rear of pectoral fins; truncate to slightly rounded caudal fin (Ref. 90102).
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Recorder
Cristina V. Garilao
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Life Cycle

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Distinct pairing (Ref. 205).
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Susan M. Luna
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Morphology

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Dorsal spines (total): 3; Dorsal soft rays (total): 27 - 30; Analspines: 0; Analsoft rays: 25 - 27
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Cristina V. Garilao
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Trophic Strategy

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Occurs in seaward reefs below the surge zone. Feeds on crabs, bivalves, gastropods, algae, echinoids, tunicates, worms, eggs, and detritus (Ref. 1602).
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Pascualita Sa-a
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Biology

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Inhabit clear inner and outer reef habitats from exposed algae reef flats to deep along drop-offs (Ref. 48637). Occur in seaward reefs below the surge zone (Ref. 205). Benthopelagic (Ref. 58302). Feed on crabs, bivalves, gastropods, algae, echinoids, tunicates, worms, eggs, and detritus. Oviparous (Ref. 205). Also taken by drive-in nets (Ref. 9770).
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Estelita Emily Capuli
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Importance

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fisheries: minor commercial; aquarium: commercial; price category: medium; price reliability: very questionable: based on ex-vessel price for species in this family
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Estelita Emily Capuli
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分布

provided by The Fish Database of Taiwan
分布於印度-太平洋區,西起非洲東岸,東至夏威夷、馬貴斯及杜夕群島,北至日本南部,南至澳洲大堡礁、新加勒多尼亞及拉帕。台灣分布於南部、東部、小琉球、蘭嶼及綠島等海域。
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臺灣魚類資料庫
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臺灣魚類資料庫

利用

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通常以陷阱法、潛水或流刺網捕獲,以生鮮或醃製於市場出售,或以其可愛的模樣而常被飼養於水族館中,供人欣賞。
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描述

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體稍延長,呈長橢圓形, 尾柄短。口端位,齒白具缺刻。眼前有一深溝。頰部被鱗;鰓裂後有大型骨質鱗片。尾柄鱗片具小棘列,且向前延伸至身體中央,第一背鰭下方。背鰭兩個,基底相接近,第一背鰭位於鰓孔上方,第I棘粗大,第II棘則細長,第III背鰭棘明顯;背鰭及臀鰭軟條截平;尾鰭截平。成魚體淺褐色;鰓裂附近有兩條弧狀帶,一條自眼延伸至胸基部前,一條在鰓後向下至胸鰭基部,向上不延伸至第一背鰭;口角至肛門具一條白線,此白線下方區域較上方區域淺;肛門至腹鰭尖端為褐色。第一背鰭淺褐色;第二背鰭、臀鰭與胸鰭白色;尾鰭深褐色。
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棲地

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主要棲息於波浪洶湧帶以下之礁區,一般被發現於水深90公尺內的水域。主要以螃蟹、軟體動物、蠕蟲、被囊動物、卵及碎屑等為食。
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Sufflamen bursa

provided by wikipedia EN
Sufflamen bursa

Sufflamen bursa the Lei Triggerfish is also known as the bursa triggerfish, scythe triggerfish or boomerang triggerfish, is a triggerfish from the Indo-Pacific. Its name is derived from the two markings behind its eyes that wrap around the fish similar to a Hawaiian Lei. The color of these markings changes depending on the fish's mood, in which case the colors may alter from yellow, dark brown, and black. It is a species of reef fish found in reef ecosystems in the Indo-Pacific, including Japan, Australia, and Hawaii. It occasionally makes its way into the aquarium trade.

Description

The Lei Triggerfish shares a similar body plan as other triggerfish species in the Balistidae Family, which include a rectangular body, pectoral, anal, caudal, dorsal and pelvic fins; and a toothy snout that is more reminiscent of a beak. It grows to a size of 25 cm in length. The Lei Triggerfish is generally pale, but it can change to a darker color, typically a shade of brown with hints of purple on the anal, ventral, and caudal fins. A single white strip runs down from its mouth to the base of its pectoral fin while two stripes, which are either brown or yellow depending on the mood of the fish, run down vertically. One stripe goes through the eye and the other behind the eye along the gills on either side.

Similar to other triggerfish species, they have locked spines at the base of their caudal fin which they use as a weapon of self-defense against predators. Although it isn’t unheard of that these fish use their spines when provoked. Like their relatives in the Balistidae Family, they have tough teeth that somewhat resemble a beak. Lei Triggerfish have tiny barbs on their scales which repel urchin spines, making them impervious to their venom.

Behavior

Lei Triggerfish are usually solitary creatures, but it isn’t uncommon for them to travel in pairs. In rarer circumstances, they can be seen swimming in trios. They generally inhabit shallow and warm waters of the tropics and subtropics. When these fish aren’t feeding, they patrol and hover around the reef, especially near areas that greatly vary in depth and topography in order to have easy access to a hiding spot from predators.

Lei Triggerfish, like their relatives, are carnivorous and secondary consumers. Their diet includes shrimps, sea urchins, worms, crabs, smaller fish, and other invertebrates. They don’t eat coral but instead will prey upon and pick at clams and other animals that attach themselves to live rocks or corals This behavioral trait helps to mitigate populations such as rock-boring creatures like sea urchins when there is an overabundance in a certain population of a species that they feed upon. Lei triggerfish don’t seclude themselves from picking off crustaceans and mollusks from rocks. They will actively seek out prey such as smaller fish. They also flip sea urchins upside down to access their soft bellies which are defended with significantly less spines. Since they are consumers, they are also susceptible to parasites and diseases.

Distribution and habitat

The Lei Triggerfish inhabits regions of a coral reef before a surge zone as to avoid the chaos and general dissonance within the water where waves crash. This species lives in warm shallow waters with sandy and reefy bottoms. In the presence of a predator, they hide in reef crevices and do this especially at night. They inhabit a variety of different reef systems across tropical and subtropical regions of the Pacific and Indo-Pacific.

Human use and cultural significance

The Lei Triggerfish have proven to be edible as well. They have been described to have a sweet flavor somewhat similar to crab or grouper. Regardless if it is eaten raw or cooked and it’s generally discouraged to use seasoning because it’s already tasty. Like other foods, they’re generally used in bigger dishes as an ingredient such as sushi. Additionally, they’re eaten grilled, raw, or seared.

Sufflamen bursa perusing a reef for food offshore Oahu, Hawaii.

References

  • https://fishbase.net.br/summary/Sufflamen-bursa.html
  • https://www.marinespecies.org/aphia.php?p=taxdetails&id=219894
  • https://newsroom.wcs.org/News-Releases/articleType/ArticleView/articleId/9422/Triggerfish-Needed-to-Grow-Reefs-New-Research-Finds.aspx
  • https://australian.museum/learn/animals/fishes/pallid-triggerfish-sufflamen-bursa/
  • https://meridian.allenpress.com/copeia/article/2003/3/433/113842/Visual-Biology-of-Hawaiian-Coral-Reef-Fishes-I
  • https://www.cambridge.org/core/journals/marine-biodiversity-records/article/mesophotic-surveys-of-the-flora-and-fauna-at-johnston-atoll-central-pacific-ocean/70BF2726A8ED47714678A268ADD8F092
  • https://newsroom.wcs.org/News-Releases/articleType/ArticleView/articleId/9422/Triggerfish-Needed-to-Grow-Reefs-New-Research-Finds.aspx
  • https://escholarship.org/uc/item/5394f7m3
  • https://journals.biologists.com/jeb/article/222/4/jeb191791/20856/Energetics-and-behavior-of-coral-reef-fishes
  • https://link.springer.com/article/10.1007/s00338-017-1649-7
  • https://americasrestaurant.com/triggerfish-taste/
  • https://fishkeepingfolks.com/triggerfish/
  • References

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Sufflamen bursa: Brief Summary

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Sufflamen bursa

Sufflamen bursa the Lei Triggerfish is also known as the bursa triggerfish, scythe triggerfish or boomerang triggerfish, is a triggerfish from the Indo-Pacific. Its name is derived from the two markings behind its eyes that wrap around the fish similar to a Hawaiian Lei. The color of these markings changes depending on the fish's mood, in which case the colors may alter from yellow, dark brown, and black. It is a species of reef fish found in reef ecosystems in the Indo-Pacific, including Japan, Australia, and Hawaii. It occasionally makes its way into the aquarium trade.

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Description

provided by World Register of Marine Species
Occurs in seaward reefs below the surge zone. Feeds on crabs, bivalves, gastropods, algae, echinoids, tunicates, worms, eggs, and detritus. Also taken by drive-in nets (Ref. 9770).

Reference

Froese, R. & D. Pauly (Editors). (2023). FishBase. World Wide Web electronic publication. version (02/2023).

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Edward Vanden Berghe [email]