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Bald notothen (Pagothenia borchgrevinki) fish species and information / pictures of Bald notothen - Pagothenia borchgrevinki

Bald notothen (Pagothenia borchgrevinki) fish species information

Scientific Name
Pagothenia borchgrevinki

Common Name
Bald notothen

Biology
Dorsal spines (total): 4 - 7; Dorsal soft rays (total): 34-38; Anal soft rays: 30 - 35. Yellowish with dark spots, irregular crossbars. Dorsal and caudal with series of spots sometimes (Ref. 11892).

Classification

Classified By

Boulenger, 1902

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Cod icefishes (Nototheniidae)

Distribution

Region

Southern Ocean

Distribution

Southern Ocean: Ross, Davis and Weddell Sea, Vincennes Bay, Budd Coast, Antarctic Peninsula, South Orkney and South Shetland islands.

Range

60°S - 78°S

Environment

Climate

Polar

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

550 m

Zone

pelagic-oceanic

Environment

Marine; pelagic-oceanic; depth range 0 - 550 m (Ref. 11892), usually 0 - 30 m (Ref. 5179)

Trophic Level

3.22 s.e. 0.34 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

28.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest

Vulnerability

Moderate vulnerability (38 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated