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Eupercaria/misc (Various families in series Eupercaria) >
Lethrinidae (Emperors or scavengers) > Lethrininae
Etymology: Lethrinus: Greek, lethrinia, a fish pertaining to genus Pagellus; mitchelli: Named for David Mitchell, a seasoned conservationist who dedicated his career to the spectacular nature and local indigenous communities of Milne Bay.
Eponymy: David Kym Mitchell became (2016) Director at Eco Custodian Advocates, Alotau Milne Bay Province, Papua New Guinea. [...] (Ref. 128868), visit book page.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي وابسته به آب سنگ; تغييرات عمق 20 - 25 m (Ref. 124781). Tropical
Western Pacific: Papua New Guinea.
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 20.0 cm SL جنس نر / بدون خواص جنسي; (Ref. 124781)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
خارهاي باله پشتي (کل) : 10; شعاع نرم باله پشتي (کل) : 9; خارهاي باله مخرجي: 3; شعاع نرم باله مخرجي: 8. This species is distinguished by the following characters: head length 2.7 in SL, greater than body depth, 3.0-3.1 in SL; cheek height 3.2-3.6 in HL; snout length without lip 1.3-1.4 in cheek height; snout profile is nearly straight without prominent hump in front of eyes, angle of snout relative to upper jaw about 55°; interorbital is nearly flat or convex; fourth dorsal-fin spine is the longest, slightly longer than third; lateral-line scales 47; transverse scale rows below lateral line 15; transverse scale rows above lateral line 4.5; wide scaleless area on the upper posterior margin of opercle; lateral teeth in jaws conical. Colouration: in life brown dorsally, whitish ventrally, with a broad, brown, posteriorly tapering band along midlateral body, partially split anteriorly by a relatively broad, ascending diagonal white band; without dark streaks radiating from eye; pelvic fins translucent with diffuse grey transverse bands (Ref. 124781).
Cross section: compressed.
Found in an area consisting of a gully with volcanic black sand and rubble bottom, from the shoreline shallows to about 30 m depth on a relatively steep slope. About 10 individuals (size from about 10.0-20.0 cm SL) were observed around a large submerged tree trunk, lying horizontally across the gully in 20-25 m depth. When pursued with a spear, the fish retreated down the slope. Thus, it is possible that the species is normally found in deeper water, accounting for the lack of previous observations by us despite many hours of diving near the type locality over the past two decades, routinely to depths of 40-50 m (Ref. 124781).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Allen, G.R., B.C. Victor and M.V. Erdmann, 2021. Lethrinus mitchelli a new species of emperor fish (Teleostei: Lethrinidae) from Milne Bay Province, Papua New Guinea. J. Ocean Sci. Found. 38:66-77. (Ref. 124781)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01445 (0.00677 - 0.03085), b=2.98 (2.81 - 3.15), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
سطح تروفیک (مرجع 69278) |
3.5 ±0.5 se; based on size and trophs of closest relatives |
جهندگی (مرجع 120179) |
زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.). |
آسیبپذیری ماهیگیری (Ref. 59153) |
Low to moderate vulnerability (27 of 100). 🛈 |