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Beryx splendens  Lowe, 1834

Splendid alfonsino
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Image of Beryx splendens (Splendid alfonsino)
Beryx splendens
Picture by Reyes, P.


Portugal country information

Common names: Alfonsim, Alfonsim-da-costa-estreita, Alfonsino
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist: Portugal
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/po.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Maul, G.E., 1986
National Database: Portuguese Freshwater Fishes

Classification / Names

Actinopterygii (ray-finned fishes) > Beryciformes (Sawbellies) > Berycidae (Alfonsinos)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Main reference

Size / Weight / Age

Max length : 70.0 cm TL male/unsexed; (Ref. 30573); common length : 40.0 cm TL male/unsexed; (Ref. 30573); max. published weight: 4.0 kg (Ref. 43448); max. reported age: 23 years (Ref. 35874)

Length at first maturity
Lm 33.2  range ? - ? cm

Environment

Marine; benthopelagic; depth range 25 - 1300 m (Ref. 9833), usually 400 - 600 m (Ref. 27121)

Climate / Range

Subtropical; 45°N - 43°S, 180°W - 180°E

Distribution

Circumglobal, excluding the northeast Pacific and Mediterranean Sea (Ref. 9833). Western Atlantic: Gulf of Maine to the Gulf of Mexico (Ref. 6743). Eastern Atlantic: off southwestern Europe and the Canary Islands (Ref. 7413) to South Africa (Ref. 4179). Indo-Pacific: East Africa (including Saya de Malha Bank, Ref. 33390) to Japan, Hawaii, Australia, and New Zealand (Ref. 5755). The limited number of records in the western Pacific is doubtless the result of limited fishing effort below 200 m (Ref. 9833). Eastern Pacific: Chile (Ref. 27363).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 4; Dorsal soft rays (total): 13-16; Anal spines: 4; Anal soft rays: 26 - 30. First infraorbital bone with a spine projecting laterally on anterior end. Lateral line extends to caudal fin. A fleshy disk on inner face of exposed area of scale. In young fishes, the 2nd dorsal ray is elongate (Ref. 559). Ref. 27363 notes pectoral fins with one spine and 17 soft rays (Ref. 27363).

Biology     Glossary (e.g. epibenthic)

Adults inhabit the outer shelf (180 m) and slope to at least 1,300 m depth, probably moving further from the bottom at night; often found over seamounts (Ref. 9833) and underwater ridges (Ref. 33648). Juveniles pelagic (Ref. 9072). Feed mainly on fish, crustaceans and cephalopods (Ref. 33648). Oviparous, spawn in batches (Ref. 30291). Eggs and larvae are pelagic (Ref. 30291). Marketed frozen and eaten steamed, fried, broiled, boiled, microwaved and baked (Ref. 9988).

IUCN Red List Status (Ref. 115185)

Threat to humans

  Harmless



Human uses

Fisheries: commercial

More information

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
References
Aquaculture
Aquaculture profile
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Allele frequencies
Heritability
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Ciguatera
Speed
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Gill area
Otoliths
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Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.6260 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.3   ±0.2 se; Based on diet studies.

Resilience (Ref. 69278)
Low, minimum population doubling time 4.5 - 14 years (K=0.10-0.18; tm=5-7.5; tmax=23; Fec = 270,000)

Vulnerability (Ref. 59153)
High vulnerability (57 of 100)
Price category (Ref. 80766)
High