Hypanus marianae, Brazilian large-eyed stingray

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Hypanus marianae (Gomes, Rosa & Gadig, 2000)

Brazilian large-eyed stingray
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Hypanus marianae   AquaMaps   Data sources: GBIF OBIS
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Image of Hypanus marianae (Brazilian large-eyed stingray)
Hypanus marianae
Picture by Sazima, I.

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (tubarões e raias) (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Dasyatinae
Etymology: marianae: Named for Mariana R. Oliveria, daughter of Otto B.F. Gadig..

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

marinhas demersal; intervalo de profundidade 2 - 15 m (Ref. 36974). Tropical; 0°S - 19°S, 38°W - 45°W (Ref. 36974)

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Southwest Atlantic: along the northeastern Brazilian coast, from the state of Maranhão to southern Bahia.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm WD macho/indeterminado; (Ref. 36974)

Descrição breve Morfologia | Morfometria

This medium-sized species of Dasyatis is distinguished by the following characters: horizontal diameter of eye nearly equal to interorbital width and spiracle length; its tail is relatively short, less than two times disk width, distally filiform, with dorsal and ventral finfolds, ending approximately on same vertical line; height of dorsal finfold 1.5-2 in height of ventral finfold; the dorsal surface of disc is yellowish brown, with dark blotch between spiracles and two pairs of dark scapular and precaudal blotches; margins of disc and pelvic fins are blue dorsally; the ventral surface of disc white, with two symmetrical pairs of dark markings in adults (Ref. 36974).

Biologia     Glossário (ex. epibenthic)

Apparently associated with coral or sandstone reefs of the northeastern Brazilian continental shelf. Two female specimens were collected from the stomach of Rachycentron canadum (Ref. 36974). Juveniles also occurred in sandy beaches and estuaries. Ovoviviparous (Ref. 50449).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205). A gravid female aborted one fully formed embryo (Ref. 36974).

Referência principal Upload your references | Referências | Coordenador : McEachran, John | Colaboradores

Gomes, U.L., R.S. Rosa and O.B.F. Gadig, 2000. Dasyatis marianae sp. n.: a new species of stingray (Chondrichthyes: Dasyatidae) from the southwestern Atlantic. Copeia 2000(2):510-515. (Ref. 36974)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Ameaçada (EN) (A2cd); Date assessed: 01 July 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless





Utilização humana

FAO - Publication: search | FishSource |

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AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Consultar FishWatcher | CISTI | Catalog of Fishes: Género, Espécies | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoma, nucleotídeo | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Árvore da vida | Wikipedia: ir para, procurar | World Records Freshwater Fishing | Registo zoológico

Estimates based on models

Preferred temperature (Ref. 123201): 27 - 27.9, mean 27.4 °C (based on 44 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00715 - 0.01930), b=3.10 (2.96 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nível Trófico (Ref. 69278):  3.5   ±0.5 se; based on size and trophs of closest relatives
Resiliência (Ref. 120179):  Muito baixo, tempo mínimo de duplicação da população maior que 14 anos (Fec=2).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).