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Petrarctus brevicornis (Holthuis, 1946)
Blue-back locust lobster| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Petrarctus brevicornis AquaMaps Data sources: GBIF OBIS |
رده بندی / Names اسامي عام | مترادف | CoL | ITIS | WoRMS
Malacostraca | Decapoda | Scyllaridae
Environment: milieu / climate zone / تغييرات عمق / distribution range بوم شناسي
; تغييرات عمق 60 - 504 m (مرجع 4). Subtropical; 35°N - 21°N, 118°E - 134°E (مرجع 4)
Distribution كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | معرفي
Western Pacific.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ? range ? - ? cm Max length : 1.8 cm CL جنس نر / بدون خواص جنسي; (مرجع 89665); common length : 5.5 cm TL جنس نر / بدون خواص جنسي; (مرجع 4)
توصيف مختصر ريخت شناسي
Carapace with 2 distinct teeth in the median line before the cervical groove (the gastric and rostral teeth), the pregastric tooth is absent. The region between the postrostral and branchial carinae with only a few tubercles and extensive smooth areas. Abdominal somites 2 to 5 with distinct elevated median longitudinal carina; the carina of the third somite is distinctly higher than that of the other somites. The exposed part of the somites without arborescent pattern, but with a wide transverse groove over the middle; behind this groove a transverse ridge extends along the posterior margin of the somite; before the groove there are tubercles and some wide side grooves. Somite 1 dorsally smooth with only an indication of a transverse groove in the extreme lateral part. Posterior margin of somites 5 and 6 not tuberculate. Fourth segment of antenna with the median oblique carina distinct but not quite straight; a row of tubercles is present on the outer half of the upper surface of the segment, tubercles are also present in the basal part of the median carina. The outer margin of the fourth segment has 3 or 4 teeth, the basal which is the largest (the apical tooth not included in these counts). The thoracic sternum is widely U-shapedly incised anteriorly; the last 4 sternites show an inconspicuous median tubercle. A dorsal fringe of hairs is present on the dactyli of pereiopods 3 to 5. Colour: dark brown above, tubercles slightly paler, sometimes with whitish areas in the branchial region and along the central part of the cervical groove. A dark blue spot in the median part of the first abdominal somite (Ref. 252).
It has lengths of 4 to 5.5. cm, total body length; 1.3 to 1.8 cm and 1.6 to 1.8 cm (ovigerous females), carapace length (Ref. 4). Maximum depth from Ref. 99823. Occurs at a depth range from 60 to 150 m with substrates of sand or mud (Ref. 4).
Life cycle and mating behavior بلوغ | تولید مثل | تخم ریزی | Eggs | Fecundity | Larvae
Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Holthuis, L.B. 1991. (مرجع 4)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2024-2)
حداقل نگرانی (LC) ; Date assessed: 03 December 2009
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
CMS (مرجع 116361)
Not Evaluated
خطر برای انسان ها
استفاده انسانی
ماهي گيري – شيلات: از بی علاقه گی
| FishSource |
ابزارها
اطلاعات بيشتر
Trophic Ecology
اقلام غذايي
تركيب غذايي
مصرف غذايي
Food rations
شکارچیان
تركيب غذايي
مصرف غذايي
Food rations
شکارچیان
بوم شناسي
Population dynamics
Life cycle
Distribution
منابع اينترنتي
BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (ژنوم, نوکلئوتيد) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (برو, جستجو) | Zoological Record
Estimates based on models
Preferred temperature
(Ref. 115969): 13.1 - 21.1, mean 18.8 (based on 53 cells).