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🌊 Marine Least Concern 🌡️ Tropical

Ecsenius Portenoyi

Ecsenius portenoyi Springer, 1988
Max Length
4.5 cm
Max Weight
-
Lifespan
-
Trophic Level
2
Depth
0–14 m
Climate
Tropical
Resilience
High
Vulnerability
12.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Specimens collected from the ocean side of reef crest with rock and dead coral and some live coral . Oviparous. Eggs are demersal and adhesive , and are attached to the substrate via a filamentous, adhesive pad or pedestal . Larvae are planktonic, often found in shallow, coastal waters .

Scientific Name
Ecsenius portenoyi
Authority
Springer, 1988
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
4.5 cm
Depth Range
0–14 m
Trophic Level
2
Resilience
High
Vulnerability
12.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 13 - 15; Anal spines: 2; Anal soft rays: 14 - 16; Vertebrae: 31 - 34. Dorsal fin XII,13-15 (usually 14), spinous and segmented-ray with deep notch in-between. Anal fin II,14-16 (typically 16). Pectoral fin 12 or 13 (typically 13). Segmented caudal-fin rays 13. Vertebrae 10 + 21-24 (typically 23). Dentary incisor teeth 48-57 which includes anterior canine teeth very similar in appearance with incisors; posterior canines 0 or 1 on each side (rarely 0). Lateral line lacking vertical pairs of pores, terminating posteriorly at point between vertical from interspace between dorsal-fin spines 10 and 11 and vertical from spine 12 (rarely anterior to spine 11). With cirrus on posterior rim of anterior nostril; absent on anterior rim. Dorsal row of dark spots below segmented-ray portion of dorsal fin usually saddle-like; space between pair of dorsal dark body spots just posterior to vertical from anteriormost (of 3) dark spot of ventral row narrower than space between second spot of pair and next spot posteriorly; slender, pale stripe extending most of midbody length usually present; dark spots on posterior half of body often not surrounded by conspicuous, discrete, pale rings (diffuse or faintly pale rings often present around spots) .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Ecsenius Portenoyi is currently being reviewed.

🦐 Diet

Diet information for Ecsenius Portenoyi is currently being compiled.

🥚 Reproduction

🐣 Oviparous

Oviparous, distinct pairing .

🌍 Habitat & Distribution

Marine; demersal; depth range 0 - 14 m . Tropical Central Pacific: Rotuma (Fiji) and Tutuila, American Samoa.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
2

📐 Morphometrics

Length–Weight Relationship: W = 0.00759 × L3 (TL)
Max TL
4.5cm
Dorsal Spines
12
Dorsal Rays
14
Anal Spines
2
Anal Rays
15
Vertebrae
33

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
12.00/100
Low vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Springer, 1988

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