Margrethia obtusirostra, Bighead portholefish

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Margrethia obtusirostra Jespersen & Tåning, 1919

Bighead portholefish
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Margrethia obtusirostra   AquaMaps   Data sources: GBIF OBIS
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Image of Margrethia obtusirostra (Bighead portholefish)
Margrethia obtusirostra
Picture by Dubosc, J.

Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

> Stomiiformes (Lightfishes and dragonfishes) > Gonostomatidae (Bristlemouths)

Environment: milieu / climate zone / depth range / distribution range पारिस्थितिकी

; समुद्री बैथीपिलाजिक; गहराई सीमा 100 - 1739 m (Ref. 58018), usually - m (Ref. ).   Deep-water; 0°C - ; 33°N - 49°S, 98°W - 154°W

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Eastern Atlantic: off Portugal south to Morocco including the Azores, Madeira and Canary Islands; off Cape Agulhas, South Africa (Ref. 3991). Western Atlantic: Southeastern Florida and Bermuda to Venezuela, including the Gulf of Mexico and the Caribbean Sea (Ref. 37039). Elsewhere, South Atlantic, tropical and subtropical Indo-Pacific.

आकार / वज़न / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.3 cm SL पुल्लिंग / अलिंग; (Ref. 4463)

Short description आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण): 0; पृष्ठीय सौफट रेज़ (सम्पूर्ण): 15-16; गुदा कांटा 0; ऐनल सौफट रेज़: 21 - 26. Yellowish in color, darker dorsally, opercle silver, caudal base and peduncle dark brown (Ref. 3991). Pectoral and pelvic fins colorless (Ref. 3991). Dorsal adipose fin present.

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Usually associated with continental and island slopes (Ref. 4769). Mesopelagic (Ref. 58302). Occurs at 100-300 m by day, 200-500 m by night (Ref. 4463). Feeds on crustaceans and small fishes (Ref. 4769). Photophore development complete by about 27 mm SL (Ref. 4769).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

Quéro, J.-C., J.C. Njock and M.M. de la Hoz, 1990. Gonostomatidae. p. 283-292. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4463)

IUCN Red List Status (Ref. 124695)

  Data deficient (DD) ; Date assessed: 23 May 2013

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

मात्स्यिकी: कोई रुचि बग़ैर
FAO - Publication: search | FishSource |

अधिक जानकारी

आम नाम
उपशब्द
चपायचय
परभक्षी
ईकोटोकसीकोलौजी
पुनरुत्पत्ति
परिपक्व अवधि
मछलीऔ का अंडे देना
Spawning aggregation
Fecundity
अंडे
Egg development
Age/Size
बाढ़
Length-weight
Length-length
Length-frequencies
मौरफोमैटरिक्स
आकृति विज्ञान
लार्वा
लारवल गतिकी
भर्ती
बहुतायत
BRUVS
संदर्भ
जलीयकृषि
जलीयकृषि रूपरेखा
खींच
आनुवंशिकी
ऐल्लि आवृतियाँ
हैरेटिबिलटी
बीमारी
प्रक्रमण
Nutrients
Mass conversion
सहयोगीयो
तस्वीरे
Stamps, Coins Misc.
ध्वनि
सिगुयटिरा
रफ्तार
तैरने के प्रकार
गिल क्षेत्र
Otoliths
दिमाग
दृष्टि

साधन

Special reports

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इंटरनेट स्रोत

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: वर्ग, प्रजाति | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | राष्ट्रीय आंकड़ासंचय | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, खोज | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 5.7 - 14.7, mean 9.2 °C (based on 768 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.48 se; based on food items.
लौटाव (Ref. 120179):  ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (23 of 100) .