(كوسه ها و سپرماهيان) (sharks and rays) >
Myliobatiformes (Stingrays) >
Aetobatidae (Pacific eagle rays)
Etymology: Aetobatus: Greek, aetos = eagle + Greek, batis, batidos = a ray (Raja sp.) (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي موجوداتی که در محدوده وسیعی از آبهای آزاد از نزدیک بستر و یا روی کف بستر، در قسمت های میان آبی تا سطح آب و در برخی گونه ها با قابلیت پرواز، زندگی و تغذیه می کنند.. Tropical
Eastern Pacific: from the Gulf of California to Peru, including Galapagos Is. (Ref. 130539).
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 230 cm WD جنس نر / بدون خواص جنسي; (Ref. 114953)
توصيف مختصر
ريخت شناسي | ريخت ستجي بوسيله انداره گيري
This large eagle ray is distinguished by the following characters: bluish black dorsal body with numerous white spots or ocelli, ventral surface mostly white; a moderately long fleshy rostral lobe; disc short and very broad; pectoral fins weakly falcate, joining head at level of eye and is separate from rostral lobe, the posterior margins moderately concave and free rear rips broadly rounded; rostral lobe moderately long and parabolic; large spiracles are dorsolateral, visible on dorsal view; mouth ventrally located, width narrower than preoral length; large nasal curtain, deeply notched centrally and with a curtain-like fringe; each jaw with plate-like teeth in a single row, with upper teeth transverse, lower teeth chevron-shaped; smooth disc without denticles or thorns; elongated tail, whip-like; small dorsal fin raked back, its apex broadly rounded, with free rear tip short; presence of 1 or more stings (Ref. 114953).
This inshore species in coastal bays and estuaries, to offshore occurs solitary or in large schools. It feeds mainly on bivalves, also shrimps, polychaetes and other fishes. Size usually less than 130 cm, size unknown at birth and when it matures (Ref. 114953).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
White, W.T. and G.J.P. Naylor, 2016. Resurrection of the family Aetobatidae (Myliobatiformes) for the pelagic eagle rays, genus Aetobatus. Zootaxa 4139(3):435-438. (Ref. 109645)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
اطلاعات بيشتر
اسامي عاممترادفسوخت و سازشکارچیانسم شناسي بوم زيستيتولید مثلبلوغتخم ریزیSpawning aggregationFecundityتخم هانمو تخم
Age/Sizeرشدطول - وزنطول - طولنوسانات طولیريخت ستجي بوسيله انداره گيريريخت شناسيتوزاد ( لارو)پويايي لارويبازسازیفراوانيBRUVS
مراجعآبزي پرورينمايه آبزي پرورينژادهاژنتيكElectrophoresesوارثبيماري هافرآوریNutrientsMass conversion
همكارانعکس هاStamps, Coins Misc.صداهاسيگواتراسرعتنوع شناگریمنطقه آبششيOtolithsمغزهابینایی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Very high vulnerability (85 of 100).
