Oncorhynchus rastrosus, the “sabertooth salmon”. Reaching up to 2.7m long (9ft), this enormous fanged fish lived along the Pacific coast of North America from 13 mya to sometime in the last couple million years — barely missing encountering modern humans, in geological time.

Aside from the hooked “saberteeth” at the tip of its snout, O. rastrosus had few teeth and very large gill rakers — suggesting it primarily fed on plankton, similarly to its modern relative the sockeye salmon.

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Started a new project today, I’m gonna be painting several Oncorhynchus species

Top to bottom:

Sockeye salmon, Oncorhynchus nerka

Pink salmon, Oncorhynchus gorbuscha

Chum salmon, Oncorhynchus keta

King salmon, Oncorhynchus tshawytscha

Chum Salmon | Oncorhynchus keta

“In BC and the Yukon, chum spawn in more than 880 medium-sized streams and rivers. In short coastal streams, chum emerge from gravel spawning beds in the spring as fry and move directly to the sea. This migration is accomplished in a day or two. In larger river systems, the young remain in fresh water for periods of up to several months before reaching the ocean. Most chum spend two or three summers at sea before returning to their home streams to spawn. In May or June of their final year at sea, maturing chum are found throughout the eastern and western Pacific, north of the California border.” -

(by Fish as art)

Acute and Chronic Sensitivity of White Sturgeon (Acipenser transmontanus) and Rainbow Trout (Oncorhynchus mykiss) to Cadmium, Copper, Lead, or Zinc in Laboratory Water-Only Exposures.

The acute toxicity of cadmium (Cd), copper (Cu), and zinc (Zn) to white sturgeon (Acipenser transmontanus) and rainbow trout (Oncorhynchus mykiss) was determined for seven developmental early life stages in flow-through water-only exposures. Test wat

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