পরিবেশ: পরিবেশ / জলবায়ু অঞ্চল / গভীরতার পরিসীমা / বিতরণ পরিসীমা
বাস্তুসংস্থান
সামুদ্রিক ব্যথিডিমারসাল সমুদ্র তলদেশবিহারী; গভীরতার পরিসীমা 1036 - 1157 m (Ref. 86286). Polar; 71°S - 72°S, 179°W - 178°W (Ref. 92304)
Southern Ocean, East Antarctica: Ross Sea.
আকৃতি / ওজন / বয়স
পরিপক্কতা : Lm ? range ? - ? cm
Max length : 21.9 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 86286); 26.2 cm SL (female)
পৃষ্ঠীয় কাঁটা (মোট ) : 2; পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 27 - 28; পায়ূর নরম পাখনা্তুন্ড: 17 - 18; কশেরুকা : 37. This dorsally-spotted and short-barbeled species is distinguished from other in 'mentella' group by this set of characters: a short (about 8-12% SL) bicolored mental barbel with uniformly dorsally dark-pigmented or spotted stem and rather long (65-68% of barbel length), inexpressive (barely wider than stem), light (creamy, whitish or light-orange in live specimens) and pointed terminal expansion, reaching nostrils or anterior edge of orbit in backward extended mode over the snout with mouth closed; terminal expansion composed of low, densely distributed folds with serrated or scalloped ridges and rosettes of leaf-like processes; lower jaw evidently protruding with visible teeth on symphysis when mouth closed; interorbital distance wide (about 7% SL); second dorsal fin with straight (not sinuous distally) rays, medium in height within males of the genus (about 21% SL), with conspicuous blackish-colored anterior elevated lobe, dark basally and lightish or somewhat variegated distally in posterior part; dorsal surface of head and area anterior to first dorsal fin covered by dark-brown spots and irregular markings; breast and belly dark-brown and blackish, both lacking in evident dark sharp spots or markings; mandibular and maxillar oral valves light or light-brownish; caudal and pectoral fins dark or blackish anteriorly, sometime with several inconspicuous stripes, and uniformly light in posterior narrow margin, anal and pelvic (both sides) fins blackish basally and light distally (Ref. 92304).
Body shape (shape guide): elongated; Cross section: other (see remarks).
Deep-water species collected by bottom long-line at depths 1036-1163 m by hooks. Visual observations of both type specimens, which were keeping alive in container filled with marine water, demonstrate the maintaining of the mental barbel in a horizontal position parallel to the ground when fishes were immovable. In swimming fishes, the mental barbel was pushed back over or alongside the snout by flowing water. P. brevibarbata evidently belongs to the mostly predatory species, which also opportunistically feeds as necrophage. The stomach of the female, captured 20 January 2010, contained (besides the bait, giant Peruvian squid, Dosidicus gigas) the remains of a large crustacean, probably Antarctic shrimp, Notocrangon antarcticus. State of ovaries with traces of recent spawning corresponds to early SGM VI-III, GSI 1.3. The length, width and depth of the left ovary attain about 44, 18 and 6.5 mm correspondently. The liver fills in length about 1/3 of the abdominal cavity; hepatosomatic index reaches 1.6 (Ref. 92304).
জীবনচক্র এবং প্রজনন আচরণ
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Balushkin, A.V., A.F. Petrov and V.G. Prutko, 2010. Pogonophyrne brevibarbata sp. nov. (Artedidraconidae, Notothenioidei, Perciformes) -a new species of toadlike plunderfish from the Ross Sea, Antarctica. Proc. Zool. Institute Russian Acad. Sci. 314(4):381-386. (Ref. 86286)
আইইউসিএন রেড লিস্টের অবস্থা (Ref. 130435: Version 2025-2 (Global))
মানুষের জন্য হুমকি
Harmless
মানুষের ব্যবহার
মৎস্য: আকর্ষণবিহীণ
হাতিয়ার
বিশেষ প্রতিবেদন
XML ডাউনলোড করুন
ইন্টারনেট সুত্র
মডেলের উপর ভিত্তি করে অনুমান
ফাইলোজেনেটিক বৈচিত্র্য সূচক (সূত্র
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00244 - 0.01080), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (সূত্র
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
মাছ ধরার ঝুঁকিপূর্ণতা (Ref.
59153): Low vulnerability (22 of 100).
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