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🌊 Marine Data Deficient 🌡️ Tropical

Helen's goby

Marcelogobius helenae van Tassell & Kramer, 2014
Max Length
2.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
49–61 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Specimens were collected in small crevices at the base of low volcanic rock cliffs with sand substrate .

Scientific Name
Marcelogobius helenae
Authority
van Tassell & Kramer, 2014
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
DD
Max Length
2.5 cm
Depth Range
49–61 m
Trophic Level
3.1
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Marcelogobius
Marcelogobius
Species
Helen's goby
Marcelogobius helenae

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 10; Anal spines: 1; Anal soft rays: 9; Vertebrae: 27. This species is distinguished by the following characters: absence of head and preopercular canals; large papilla replace pores, generally for pores B, C, E and F; pore locations G and H with or without large papilla; 28-30 scales in lateral series; scales cycloid anteriorly, becoming ctenoid with ctenii increasing in size posteriorly. Body with 4 mottled, wide brown-orange bars separated by narrower white bars, cheek whitish with 5 more or less circular blotches of orange, outlined in dark brown and a black spot on ventral operculum .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Helen's goby 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; pelagic-neritic; depth range 49 - 61 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine 🐟 Pelagic
Trophic Level
3.1±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00741 × L3.09 (TL)
Max TL
2.5cm
Dorsal Spines
7
Dorsal Rays
10
Anal Spines
1
Anal Rays
9
Vertebrae
27

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2024

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
van Tassell & Kramer, 2014

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