Petrarctus brevicornis, Blue-back locust lobster
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Petrarctus brevicornis   (Holthuis, 1946)

Blue-back locust lobster

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Petrarctus brevicornis  AquaMaps  Data sources: GBIF OBIS
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Petrarctus brevicornis

Classification / Names প্রচলিত নাম সমূহ | প্রতিনাম সমূহ | CoL | ITIS | WoRMS

Malacostraca | Decapoda | Scyllaridae

Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range বাস্তুসংস্থান

; গভীরতার পরিসীমা 60 - 504 m (সূত্র 4).  Subtropical; 35°N - 21°N, 118°E - 134°E (সূত্র 4)

Distribution দেশ সমূহ | এফ এ ও এলাকাসমূহ | বাস্তুতন্ত্র | দৃষ্টিগোচর | প্রচলন

Western Pacific.

Length at first maturity / আকৃতি / Weight / Age

পরিপক্কতা : Lm ?  range ? - ? cm Max length : 1.8 cm CL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (সূত্র 89665); common length : 5.5 cm TL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (সূত্র 4)

Short description বহিঃ অঙ্গ সংস্থান

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).

জীববিজ্ঞান     শব্দকোষ (উদাহরণ স্বরূপ epibenthic)

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 পরিপক্কতা | প্রজনন | ডিম ছাড়া | Eggs | ডিম্বধারন ক্ষমতা | 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.

Main reference সূত্র সংখ্যা | সমম্বয়কারী | সহযোগী

Holthuis, L.B. 1991 FAO Species Catalogue. Vol. 13. Marine lobsters of the world. An annotated and illustrated catalogue of species of interest to fisheries known to date. FAO Fish. Synop. 125(13):292p. Rome: FAO. (সূত্র 4)

IUCN Red List Status (সূত্র 130435: Version 2025-1)

  Least Concern (LC) ; Date assessed: 03 December 2009

CITES status (সূত্র 108899)

Not Evaluated

CMS (সূত্র 116361)

Not Evaluated

Threat to humans

Human uses

মৎস্য: আকর্ষণবিহীণ
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হাতিয়ার

আরো তথ্য

ট্রফিক বাস্তুতন্ত্র
Food items (preys)
পথ্য উপাদান
খাদ্য গ্রহণ
শিকারী প্রাণী সমূহ
বাস্তুসংস্থান
Population dynamics
বৃদ্ধি
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
প্রাচুর্য
Life cycle
প্রজনন
পরিপক্কতা
ডিম্বধারন ক্ষমতা
ডিম ছাড়া
Eggs
Egg development
Larvae
Physiology
অম্লজান ব্যবহার

ইন্টারনেট সুত্র

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | জীবন বৃক্ষ | Wikipedia (Go, অনুসন্ধান ) | জুলজিকাল রেকর্ড

Estimates based on models

Preferred temperature (Ref. 115969): 13.1 - 21.1, mean 18.8 (based on 53 cells).
Fishing Vulnerability (সূত্র 71543): Low vulnerability (10 of 100).
Price category (সূত্র 80766): Very high.