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272:(meaning that they migrate from fresh water to the seas, or vice versa, but not for the purpose of breeding). The eggs are laid in fresh water and on hatching, the larvae are carried to sea for the first stage of their development. The larvae are at risk of being captured by irrigation schemes in some catchments, leading to high losses. It has been proposed that avoiding water abstraction in lower reaches of waterways in the hours post sunset could significantly improve survival of larvae.
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253:. It can be found up to 100 kilometres (62 mi) inland, and from sea level up to an elevation of 480 metres (1,570 ft). The bluegill bully is the smallest of the Eleotrids, commonly reaching only 60–70 mm (2.4–2.8 in).
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It is named for the bright blue edge to the operculum or gill cover, which is present in both sexes. It eats aquatic invertebrates and has an upturned mouth, allowing them to pick invertebrates off the stones above them. The species is
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to New
Zealand. It lives in shallow, fast-flowing riffles and torrents, where it forages and shelters amongst the gravels. It has a similar distribution to the other endemic riffle specialist, the
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The young fish return to fresh water after a few months and continue to slowly migrate upstream as they get older. Thus the largest bluegills are found furthest upstream.
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539:"Longitudinal size distributions of bluegill bullies (Gobiomorphus hubbsi) and torrentfish (Cheimarrichthys fosteri) in two large New Zealand rivers"
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498:"Larval drift of amphidromous Gobiomorphus spp. in a New Zealand coastal stream: a critical spatial and temporal window for protection"
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434:"Diet, food resource partitioning and feeding periodicity of two riffle-dwelling fish species in a New Zealand river"
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Allibone, R.; David, B.; Franklin, P.; Hitchmough, R.; West, D.; Ling, N.; Crow, S. (2014).
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with the most active times for feeding at dawn and dusk. They feed predominantly on
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New
Zealand Freshwater Fishes: A natural history and guide
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Scrimgeour, G. J.; Winterbourn, M. J. (September 1987).
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New
Zealand Journal of Marine and Freshwater Research
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New
Zealand Journal of Marine and Freshwater Research
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371:"Freshwater fish - Bullies, smelt and grayling"
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375:Te Ara - the Encyclopedia of New Zealand
402:"The secret life of our bluegill bully"
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837:Endemic freshwater fish of New Zealand
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765:fd84b58f-36c9-4f5f-927e-b79b1cda2015
496:Jarvis, MG; Closs, GP (2015-10-02).
381:from the original on 20 January 2022
350:from the original on 8 December 2015
303:IUCN Red List of Threatened Species
537:Atkinson, N.K.; Joy, M.K. (2010).
450:10.1111/j.1095-8649.1987.tb05238.x
344:"NIWA Fish Atlas - Bluegill Bully"
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827:IUCN Red List vulnerable species
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414:from the original on 2023-01-27
400:McEwan, Amber (30 April 2013).
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515:10.1080/00288330.2015.1072569
842:Taxa named by Gerald Stokell
592:Bluegill bully discussed on
475:. Auckland: Heinemann Reed.
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241:) is a fish in the family
556:10.1080/00288330909510030
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86:Scientific classification
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471:McDowall, R.M. (1990).
438:Journal of Fish Biology
847:Fish described in 1959
583:at Wikimedia Commons
310:: e.T197321A2482164.
49:Male bluegill bully
622:Gobiomorphus hubbsi
598:Critter of the Week
580:Gobiomorphus hubbsi
296:Gobiomorphus hubbsi
239:Gobiomorphus hubbsi
195:Gobiomorphus hubbsi
56:Conservation status
588:Photograph of male
221:Philypnodon hubbsi
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786:Open Tree of Life
614:Taxon identifiers
577:Media related to
407:Forest & Bird
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270:amphidromous
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164:Gobiomorphus
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698:iNaturalist
323:19 November
263:Deleatidium
259:crepuscular
251:torrentfish
143:Gobiiformes
821:Categories
418:2023-03-05
354:1 December
279:References
243:Eleotridae
153:Eleotridae
71:Vulnerable
524:0028-8330
458:0022-1112
268:They are
171:Species:
109:Kingdom:
103:Eukaryota
716:11004612
672:FishBase
637:Q4930320
631:Wikidata
412:Archived
379:Archived
348:Archived
245:that is
212:Synonyms
149:Family:
123:Chordata
119:Phylum:
113:Animalia
99:Domain:
76:IUCN 3.1
690:2386392
385:5 March
247:endemic
205:, 1959)
203:Stokell
159:Genus:
139:Order:
129:Class:
74: (
804:280894
778:280894
762:NZOR:
742:197321
729:637414
703:410631
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799:WoRMS
791:78288
755:86237
711:IRMNG
677:22534
664:6KMW5
651:53884
773:OBIS
750:NCBI
737:IUCN
724:ITIS
685:GBIF
646:BOLD
520:ISSN
477:ISBN
454:ISSN
387:2023
356:2015
325:2021
308:2014
233:The
659:CoL
594:RNZ
551:doi
510:doi
446:doi
312:doi
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
