Pacific Jack Mackerel and Similar Species
Trachurus symmetricus
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Open the appSeveral fish can be confused with Pacific Jack Mackerel. Here are the key differences.
Species often confused with {name}
Atlantic Horse Mackerel
Trachurus trachurus
Key differences: Geographic distribution (Atlantic vs. Pacific). T. trachurus typically has fewer scutes on the lateral line (69-79 vs. 90-100 for T. symmetricus) and a slightly different body depth to length ratio.
Chub Mackerel
Scomber japonicus
Key differences: Chub Mackerel (a 'true' mackerel) lacks the prominent, keeled scutes along the entire lateral line. It has a more distinct pattern of wavy lines or spots on its back and typically has 5 dorsal and 5 anal finlets, which are more pronounced than in Trachurus symmetricus.
Pacific Mackerel
Scomber australasicus
Key differences: Similar to Chub Mackerel, Pacific Mackerel lacks the full complement of lateral line scutes. Its body is typically more slender, and it has distinct dark wavy lines on its back.
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