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NarrativeWikipediaarticle
Traits & measurements1 literature sources4 traits
Occurrence & distributionGBIF38 records
01Narrative
Andinoacara stalsbergi is a species of South American freshwater fish in the family Cichlidae. It was previously included in A. rivulatus, but was described as a separate species in 2009. The specific name honours the Norwegian aquarist Alf Stalsberg who collected the type of this species and who has had a “longstanding commitment to increase the knowledge about cichlid fishes”. A. stalsbergi has scales on the body with light centres and dark edges, and narrow clearly defined white edging to the tail and dorsal fins. This separates it from A. rivulatus where the scale-pattern is reversed, and the fin-edging is gold-orange or less clearly defined white. A. stalsbergi are found in rivers and other freshwater habitats in western Peru from Piura to Ica, while A. rivulatus are found in far northwestern Peru (Tumbes) and western Ecuador. Although the largest officially measured A. stalsbergi only had a standard length of 11.3 cm, it is known to reach a size comparable to A. rivulatus.
No narrative description available for this taxon yet.
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
DNA clock origin3.61 Ma TimeTree
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
DNA clock origin
08Occurrence & distribution
Record type38 records
Wild obs. + sensor23
Museum / vouchered15
Range
Area of Occupancy AOO92 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy90% within 1 km
≤100 m 11≤1 km 7≤10 km 1>10 km 1
20 georeferenced · 3 without coordinates
Open the mapobservation + sensor23
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy
no georeferenced coordinates · 15 records without
Open the institutions mapphysical evidence15
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions3 of 4 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
