Brown slickhead (Bajacalifornia calcarata) is a ray-finned fish of the family Alepocephalidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 38 cm. It occurs at depths between 350 and 1100 metres. With a trophic level of 3.5, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
Physical description for Brown slickhead is currently being
compiled.
🌀 Behaviour
Behavioural data for Brown slickhead is currently being
reviewed.
🦐 Diet
aquatic invertebrates
small fish
algae
detritus
🥚 Reproduction
🐣 Oviparous📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External
🌍 Habitat & Distribution
Marine; bathypelagic; depth range 350 - 1100 m . Deep-water West Pacific: widely distributed from Gulf of Aden to the western Pacific.
AustraliaBrazilIndonesiaNew Zealand
🌿 Ecology
Zone Preferences
🌊 Marine🌑 Deep Water
Trophic Level
3.5±0.5
📐 Morphometrics
Length–Weight Relationship:
W = 0.00339 × L3.19
(TL)
Max TL
38cm
🌡️ Water Parameters & Tolerance
Salinity Range
30–40ppt
🛡️ Conservation Assessment
IUCN Category
Least Concern
Assessment Date
2014
📊 Population Risk & Fisheries
Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
49.00/100
Moderate-High vulnerability
Trophic Level
3.5
Predator
Climate Zone
Deep-water
Described By
Weber, 1913
🌐 Names & Taxonomy
Language
Common Names
🇬🇧English
Brown Slickhead
Scientific Synonyms
Scientific Name
Author
Year
Status
Bathytroctes calcaratus
Weber
1913
Synonym
📚 Scientific References
13
publications cited
General
Froese, R. and Pauly, D. (Editors)
(2024).
FishBase.
World Wide Web electronic publication.
FishBase Consortium.
Link
↗
Conservation
IUCN
(2024).
The IUCN Red List of Threatened Species.
Version 2024-1.
International Union for Conservation of Nature.
Link
↗
Taxonomy
GBIF Secretariat
(2024).
GBIF Backbone Taxonomy.
Checklist dataset.
Global Biodiversity Information Facility.
DOI ↗
Nutrition
USDA Agricultural Research Service
(2024).
FoodData Central.
USDA National Nutrient Database.
United States Department of Agriculture.
Link
↗
Fishery
NOAA Fisheries
(2024).
FishWatch: U.S. Seafood Facts.
National Oceanic and Atmospheric Administration.
Link
↗
Monterey Bay Aquarium
(2024).
Seafood Watch Recommendations.
Monterey Bay Aquarium Foundation.
Link
↗
Aquaculture
FAO Fisheries and Aquaculture Department
(2024).
The State of World Fisheries and Aquaculture.
Food and Agriculture Organization of the United Nations.
Link
↗
Distribution
Kaschner, K., Kesner-Reyes, K., Garilao, C., Segschneider, J., Rius-Barile, J., Rees, T., Froese, R.
(2024).
AquaMaps: Predicted range maps for aquatic species.
AquaMaps.
Link
↗
Ecology
Nelson, J.S., Grande, T.C., Wilson, M.V.H.
(2016).
Fishes of the World.
5th edition.
John Wiley & Sons.
Behavior
Helfman, G.S., Collette, B.B., Facey, D.E., Bowen, B.W.
(2009).
The Diversity of Fishes: Biology, Evolution, and Ecology.
2nd edition.
Wiley-Blackwell.
Morphology
Froese, R.
(2006).
Cube law, condition factor and weight-length relationships: history, meta-analysis and recommendations.
Journal of Applied Ichthyology, 22(4), 241-253.
DOI ↗
Toxicology
Halstead, B.W., Auerbach, P.S., Campbell, D.
(1988).
A Colour Atlas of Dangerous Marine Animals.
Wolfe Medical Publications.
Wolfe Medical.
Reproduction
Balon, E.K.
(1975).
Reproductive Guilds of Fishes: A Proposal and Definition.
Journal of the Fisheries Research Board of Canada, 32(6), 821-864.