It is always satisfying to update taxonomy in the museum’s database or find and correct mistakes. This week I spent some time sorting out details on Royal BC Museum specimens of California Yellowtail (Seriola dorsalis) and Great Amberjack (Seriola lalandi). Turns out that since these fishes were collected, Seriola dorsalis has been sunk, and all our fishes are Seriola lalandi (as noted by Gillespie 1993). This carangid fish is known to move into our waters in warmer years.
While reviewing what we knew about the first BC specimen (979-11312) it became obvious that the Royal BC Museum’s database was missing some information for that fish. Fortunately, this information was easily updated – the original report was published in the Royal BC Museum’s extinct periodical Syesis (see Nagtegaal and Farlinger 1980).
Drawing of Seriola dorsalis – oops lalandi (979-11312) by K. Uldall-Ekman.
In fixing that record, I noticed that some online sources had given incorrect coordinates for this fish. Contrast the capture location of 54°35’N, 131°00’W in Caamaño Passage as reported by Nagtegaal and Farlinger (1980), with online sources which state the fish was caught at 54°35’N, 31°00’W. That missing 1 in the reported longitude determines which ocean is linked this fish.
The takeaway message? Always check the original paper rather than relying on internet sources. Precise data is everything – and in the words of a well known scoundrel: “Without precise calculations we could fly right through a star, or bounce too close to a supernova and that’d end your trip real quick, wouldn’t it.” Or in this case, you’d be landing southwest of Iceland to look for Great Amberjack.
Gillespie, G.F. 1993. An Updated List of the Fishes of British Columbia, and Those of Interest in Adjacent Waters, with Numeric Code Designation.Canadian Technical Report of Fisheries and Aquatic Sciences 1918. 116 p.
Nagtegaal, D.A. and S.P. Farlinger. 1981. First record of two fishes, Seriola dorsalis and Medialuna californiensis, from waters off British Columbia. Syesis 13:206 –207.