Holocephali (chimaeras) >
Chimaeriformes (Chimaeras) >
Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Hydrolagus: Greek, hydr = water + Greek, lagos = hare (Ref. 45335).
Environment / Climate / Range
Ecology
Marine; bathydemersal; depth range 421 - 750 m (Ref. 3181). Deep-water
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 67.0 cm TL male/unsexed; (Ref. 3181)
Dorsal
spines
(total): 1;
Anal
spines: 0;
Anal
soft rays: 0. A shortnose chimaera with the dorsal fin spine longer than the head; 2nd dorsal fin with distinct concavity in the middle (Ref. 5578).
Western Indian Ocean: off Kenya, Mozambique and Natal, South Africa.
Feeds on ophiuroids (Ref. 27637). Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).
Compagno, L.J.V., 1986. Chimaeridae. p. 144-145. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin.
IUCN Red List Status (Ref. 90363)
Human uses
Fisheries: of no interest
More information
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00271 (-0.19549 - 0.20092), b=3.11060 (3.00318 - 3.21802), based on LWR estimates for this family-BS (Ref.
93245).
Trophic Level (Ref.
69278): 4.1 ±0.60 se; Based on food items.
Resilience (Ref.
69278): Low, minimum population doubling time 4.5 - 14 years (Assuming Fec <100).
Vulnerability (Ref.
59153): Moderate to high vulnerability (46 of 100) .
Price category (Ref.
80766):
.