Gwyniad (Coregonus pennantii) fish species and information / pictures of Gwyniad - Coregonus pennantii

Gwyniad (Coregonus pennantii) fish species information

Scientific Name
Coregonus pennantii

Common Name
Gwyniad

Biology
Lacustrine, in open water. Spawns in January to February in shallow bays on stones and gravel. Feeds on crustaceans and insects (Ref. 59043). Status of threat: Threatened by degradation of water quality and introduction of Gymnocephalus cernua, which preys on egg and larvae. A second population is being established in Llyn Arenig (Ref. 59043).

Classification

Classified By

Valenciennes, 1848

Class

Ray-finned fishes (Actinopterygii)

Order

Salmons (Salmoniformes)

Family

Salmonids (Salmonidae)

Distribution

Region

Europe

Distribution

Europe: Wales: Lake Llyn Tegid (Lake Bala).

Range

Unknown

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic

Trophic Level

3.34 s.e. 0.45 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

35.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Moderate to high vulnerability (48 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

Critically Endangered (CR) (B1ab(iii,v)+2ab(iii,v))