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they hatch. The mother remains above the eggs for about 12–14 hours, fanning the eggs with her pectoral fins to improve aeration for perhaps 30% of the time. She chases away most fish that approach and remove other intruders like starfish by mouth. Maternal care is effective in preventing predation, and experimental removal of the mothers reduced survival to almost nothing suggesting this behaviour is adaptive. Unlike fathers, mothers forage less and over a smaller area near the egg mass while caring for the eggs. Since the males have multiple mates, caring for an egg mass would probably be more costly in terms of lost mating opportunities so maternal care is considered to be an
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253:, where they eat just about anything that comes along, mostly including invertebrates and reef algae. They are always restlessly swimming around and vigorously protect their territory against intruders, including divers, especially when guarding their eggs during reproduction season. Their relatively small size makes them much less dangerous than the larger
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Both sexes guard territories, some maintaining a territory for eight years or longer (with males holding territories for significantly longer than females). A typical male territory may overlap with one to five female territories, and their mating system is described as haremic, although not much is
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Pair-spawning takes place around sunrise, with the egg masses being attached to sand, coral rubble or algae. They hatch on the same day around sunset. Although paternal care is normal in teleost fishes with external fertilization, it is the mothers in this species that guard and care for eggs until
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The fish moves through the water by using waving motions in its dorsal and anal fins, allowing it to move more precisely. Using these movements, it can move forwards, backwards or simply hover in place above the reef. This means that it can more easily back out of crevices than other unidirectional
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with two different opsins in each member peaking at 480 nm (M) and 530 nm (L) respectively. Behavioural research has provided evidence that individual members of the double cones can act as independent channels of colour information, aiding in understanding double cone function. This
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species). If a male or female is removed or disappears their territories are soon taken over by a new fish. They reproduce multiple times over their lifetimes.
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Marshall, J.; Jennings, K.; Goldizen, A; Vorobyev, M. (2004). "Colour vision in reef fish".
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Kuwamura, T. (1997). "Evolution of Female Egg Care in
Haremic Triggerfish,
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This species has been studied in a range of research contexts, from
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Pignatelli, V.; Champ, C.; Marshall, J.; Vorobyev, M. (2010).
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known about this (similar mating systems are seen in other
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Lagoon triggerfish live in the reefs and sandy areas of
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A triggerfish found on reefs in the Indo-Pacific region.
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Lagoon triggerfish live on the flat areas of the reef.
226:, up to 30 cm in length, found on reefs in the
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425:"Species Rhinecanthus aculeatus Linnaeus 1758"
403:10.2305/IUCN.UK.2022-2.RLTS.T193713A2264564.en
8:
497:, M = middle wavelength, L = long wavelength
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586:Integrated Taxonomic Information System
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511:. Brisbane, Australia: Fraser Island.
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290:This species has one type of single
955:IUCN Red List least concern species
389:IUCN Red List of Threatened Species
481:10.1111/j.1439-0310.1997.tb00143.x
307:research suggests the species has
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540:(4). The Royal Society: 537–539.
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298:peaking in sensitivity at 413
280:evolutionarily stable strategy
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985:Taxa named by Carl Linnaeus
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965:Fish of the Pacific Ocean
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70:Scientific classification
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617:. December 2005 version.
603:; Pauly, Daniel (eds.).
582:"Rhinecanthus aculeatus"
382:Rhinecanthus rectangulus
265:Mating and reproduction
980:Fish described in 1758
707:Rhinecanthus_aculeatus
694:Rhinecanthus_aculeatus
680:Rhinecanthus aculeatus
650:Rhinecanthus aculeatus
607:Rhinecanthus aculeatus
546:10.1098/rsbl.2009.1010
526:Rhinecanthus aculeatus
455:Rhinecanthus aculeatus
207:Rhinecanthus aculeatus
179:Rhinecanthus aculeatus
632:on Sealife Collection
396:: e.T193713A2264564.
378:Matsuura, K. (2022).
210:), also known as the
257:of the same family.
212:blackbar triggerfish
473:1997Ethol.103.1015K
309:trichromatic vision
216:Picasso triggerfish
40:Conservation status
24:Lagoon triggerfish
630:Lagoon triggerfish
323:Lagoon triggerfish
202:lagoon triggerfish
942:
941:
904:Open Tree of Life
642:Taxon identifiers
509:Vision down under
467:(12): 1015–1023.
347:Aquarium specimen
255:titan triggerfish
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161:R. aculeatus
127:Tetraodontiformes
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589:. Retrieved
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239:color vision
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228:Indo-Pacific
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148:Rhinecanthus
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790:iNaturalist
674:Wikispecies
429:FishWisePro
304:double cone
302:(S), and a
251:coral reefs
224:triggerfish
220:Picassofish
960:Balistidae
949:Categories
628:Photos of
591:24 January
495:wavelength
493:S = short
409:9 February
365:References
272:Balistidae
241:research.
235:locomotion
137:Balistidae
218:, or the
155:Species:
93:Kingdom:
87:Eukaryota
808:10663138
764:FishBase
714:BioLib:
665:Q1331593
659:Wikidata
614:FishBase
564:20129950
460:Ethology
435:19 April
353:See also
245:Behavior
230:region.
187:Linnaeus
133:Family:
107:Chordata
103:Phylum:
97:Animalia
83:Domain:
60:IUCN 3.1
782:2407235
555:2936199
469:Bibcode
222:, is a
143:Genus:
123:Order:
113:Class:
58: (
932:219890
919:137358
916:uBio:
909:891845
896:219890
883:186403
870:245705
847:193714
834:173203
821:116706
756:218605
717:145750
562:
552:
431:. 1758
286:Vision
261:fish.
214:, the
927:WoRMS
854:NAS:
803:IRMNG
795:83884
743:4S7KL
730:34230
296:opsin
891:OBIS
865:NCBI
857:2766
842:IUCN
829:ITIS
777:GBIF
769:5839
725:BOLD
593:2006
560:PMID
437:2020
411:2023
394:2022
292:cone
200:The
191:1758
816:ISC
751:EoL
738:CoL
702:AFD
689:ADW
550:PMC
542:doi
477:doi
465:103
457:".
398:doi
237:to
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300:nm
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204:(
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
