Salmon : Types of Salmon

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Presentation transcript:

Salmon : Types of Salmon What are the five salmon species on the West Coast?

CHINOOK SALMON

COHO SALMON

CHUM SALMON

PINK SALMON

SOCKEYE SALMON

What kind of salmon would we find on the East Coast?

ATLANTIC SALMON

EPA Recommended Temperature Thresholds to Protect Salmonid species and Trout Fish are exothermic (e.g., physiologically controlled by surrounding water temperature levels). As such, water temperature controls all life stage needs. Adult migration 64-68 F (18-20 C) Incubation 55 F (13C) Juvenile Rearing 61-64 F (16-18 C) Smoltification 57-59 F (14-15 C) Prolonged exposures of Chinook salmon to water temperatures above about 20°C (68 F) can result in a number of adverse effects, depending on the life stage (Moyle et al. 2002). In northern California, both Welsh et al. (2001) and Hines and Ambrose (1998) found that coho salmon juveniles did not persist where the floating weekly maximum temperature exceeded 18.3° C (65 F) for any length of time.

SALMON FINS

The Anadromous Journey From fresh water in the rivers to a mix of fresh and salt water in the estuaries to salt water in the ocean, the salmon move through a series of different environments in order to survive. Salmon can travel hundreds of miles and leap over obstacles. Dams prevent salmon migration and humans have installed fish ladders to assist in the journey. Its quite a mysterious journey.

What is the most prevalent fish in the Van Duzen and Eel Rivers?

What are the things salmon need in their spawning habitat.

Proper rock size to make redds and protect eggs Clean, cold water A reasonable flow Oxygen in the riffles Macroinvertebrates to eat when they become fry Woody debris to hide as they become fry

Are Steelhead Salmon? 1. Steelhead is not a salmon but a trout. 2. It does come from the Salmonidae Family. 3. Steelhead is a different species. Oncorhynchus mykiss 4. Steelhead has the same DNA as Rainbow trout. Steelhead go to the ocean and back while rainbow trout stay in the river. Steelhead spawn and live and return to the ocean.