Chum Salmon, often called the “Dog Salmon,” is an intriguing fish species with unique features and behaviors. This guide is designed to give you a clear and friendly overview of what makes Chum Salmon special. Let’s dive into the details!
Basic Info
- Common Name: Chum Salmon
- Scientific Name: Oncorhynchus keta
- Group Name: Salmon
- Average Life Span in the Wild: 3-7 years
- Size: Adult chum salmon typically reach lengths of 24-36 inches.
- Weight: They can weigh anywhere from 6-15 pounds.
- Behavior: Chum salmon are anadromous fish, meaning they are born in freshwater, migrate to the ocean to mature, and then return to their natal streams to spawn. During their oceanic phase, they feed primarily on plankton and small fish. When they return to freshwater to spawn, they cease feeding and focus on reproducing. Their spawning behavior involves digging redds (nests) in the gravel bed of the stream and depositing their eggs. After spawning, they typically die.
How to Identify Chum Salmon
Identifying Chum Salmon can be done by observing several key physical characteristics:
- Coloration: In the ocean, Chum Salmon have a metallic greenish-blue coloration on their backs with silvery sides and a pale belly. As they approach freshwater to spawn, their color changes dramatically, developing vertical bars of reddish-purple or green on their flanks.
- Teeth: Males, in particular, are distinguishable by the large, sharp teeth they develop during spawning. These teeth are used for fighting other males as they compete for mates.
- Body Shape: Chum Salmon have a streamlined, torpedo-shaped body, which aids in their long migratory journey. During the spawning season, males can develop a more exaggerated humpback and hooked jaws, further distinguishing them from females.
- Size: Chum Salmon are typically larger than other Pacific salmon species, which can help in identification, especially when considering their overall body size and weight.
- Fins: Their dorsal fins are relatively short, and the anal fin is long and set far back on the body. These features, along with their distinctive coloration and body shape, make them recognizable among other salmon species.
Chum Salmon play a vital role in the ecosystem and are also of great importance to commercial and recreational fishing industries. By understanding their characteristics, behavior, and how to identify them, enthusiasts and professionals alike can better appreciate this remarkable species. Whether you’re studying marine biology or just interested in learning more about different fish species, Chum Salmon offers a fascinating glimpse into the life of an anadromous fish.
Some pictures of Chum Salmon
Robert Smith is the proud owner of Bait Barrels and Bows, a premier fishing sports store established in 1989. With over three decades of experience in the industry, Robert has honed his skills to become an expert angler, sharing his vast knowledge and passion for fishing with enthusiasts around the world. Through his store and writings, Robert provides invaluable tips and guidance, helping both novice and seasoned anglers improve their techniques and enjoy the sport to its fullest. His commitment to the fishing community is evident in his dedication to quality products and excellent customer service.