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🌊 Marine Vulnerable 🌡️ Tropical

Witch guitarfish

Zapteryx xyster Jordan & Evermann, 1896
Witch guitarfish (Zapteryx xyster)
Witch guitarfish (Zapteryx xyster)
Max Length
78 cm
Max Weight
-
Lifespan
-
Trophic Level
3.6
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
46.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Benthic species of continental shelf on rocky and sandy bottoms to depths of 150 m. It is a night feeder, mainly on small fishes and prawns . Ovoviviparous . Maturity size of males at ca. 47 cm TL, females at ca. 45 cm TL. Species born at ca. 18 cm TL. It is a likely bycatch of gillnet and prawn trawl fisheries .

Scientific Name
Zapteryx xyster
Authority
Jordan & Evermann, 1896
Habitat
Marine
Climate
Tropical
IUCN Status
VU
Max Length
78 cm
Latitude
19°S – 24°N
Trophic Level
3.6
Resilience
Low
Vulnerability
46.00/100
Salinity
30–40 ppt

🐟 Physical Description

Physical description for Witch guitarfish is currently being compiled.

🌀 Behaviour

Behavioural data for Witch guitarfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
43cm TL

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 .

🌍 Habitat & Distribution

Marine; reef-associated; depth range ? - 150 m . Tropical; 24°N - 19°S, 107°W - 80°W recorded in Compagno's 1999 checklist (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.6±0.59

📐 Morphometrics

Length–Weight Relationship: W = 0.00724 × L3 (TL)
Max TL
78cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
46.00/100
Moderate-High vulnerability
Trophic Level
3.6
Predator
Climate Zone
Tropical
Latitude Range
24°N – 19°S
Described By
Jordan & Evermann, 1896

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