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Zearaja chilensis  (Guichenot, 1848)

Yellownose skate
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Zearaja chilensis   AquaMaps   Data sources: GBIF OBIS
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Image of Zearaja chilensis (Yellownose skate)
Zearaja chilensis
Picture by Johnny Labbe/Mauricio Ahumada

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)

Environment / Climate / Range Ecology

Marine; demersal; depth range 28 - 500 m (Ref. 104541).   Temperate; 4°C - 19°C (Ref. 104541); 18°S - 57°S, 75°W - 52°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Southeast Pacific and Southwest Atlantic: Uruguay (Ref. 58839) and Chile to the Patagonia-Falkland region. Records from Ecuador are questionable.

Length at first maturity / Size / Weight / Age

Maturity: Lm 103.5, range 97 - ? cm
Max length : 210 cm TL male/unsexed; (Ref. 104541); common length : 85.0 cm TL male/unsexed; (Ref. 104541)

Biology     Glossary (e.g. epibenthic)

Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Inhabits sandy and muddy bottoms at depths (Ref. 104541).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)

IUCN Red List Status (Ref. 115185)

  Vulnerable (VU) (A4bd)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00140 - 0.00684), b=3.20 (3.02 - 3.38), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  4.5   ±0.6 se; Based on diet studies.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Prior r = 0.13, 2 SD range = 0.03 - 0.61, log(r) = -2.04, SD log(r) = 0.78, Based on: 3 K, 3 tmax, 1 Fec records
Vulnerability (Ref. 59153):  High to very high vulnerability (69 of 100) .