. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 278 bulletin: museum of comparative zoology. all other Salpae put together. And the few chains of S. confoederata which were seen, or collected, it was nowhere abundant, were re- stricted to Gulf Stream Stations (10071, 10076) and to the outer part of the shelf (10070, 10073, 10074). Salpa tilesii, on the contrary, was not taken at all at Stations 10064 and 10071, but was found in adulter- ated Gulf Stream water at Station 10076, and was more or less com- mon along the edge of the continental shelf (Stations
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. 278 bulletin: museum of comparative zoology. all other Salpae put together. And the few chains of S. confoederata which were seen, or collected, it was nowhere abundant, were re- stricted to Gulf Stream Stations (10071, 10076) and to the outer part of the shelf (10070, 10073, 10074). Salpa tilesii, on the contrary, was not taken at all at Stations 10064 and 10071, but was found in adulter- ated Gulf Stream water at Station 10076, and was more or less com- mon along the edge of the continental shelf (Stations 10061, 10070, 10077); and in the eastern part of the Gulf of Maine (Station 10096). Salpae as a whole were far less numerous along the inner edge of the Gulf Stream in July, 1913, than they were in July, 1908 (1909, p. 198), when they were more abundant on the surface south of Nantucket than I have ever seen them. The hyperiid amphipods. Hyperiid amphipods often form a large part of the macroplankton in boreal waters and are of considerable importance as food for pelagic fishes. The species so far captured in the Grampus hauls, all of which are easily recognizable, are Hyperia medusarum, Hyperia galba, Hype- roche kroyeri, Parathemisto oblivia, Euthemisto compressa, Euthemisto bispinosa, Phronima atlantica, Phronima sedentaria, Tyro atlantica, and Vibilia jeangerardi. Their occurrence, in the summer of 1913, is shown in the following table (p. 279). (The identifications follow Bovallius, 1887-1889, and Sars, 1895. For previous records off the New England coast, see Holmes, 1905, and Rathbun, 1905). The most widely distributed hyperiids in the coast water, as well as the most abundant numerically, were the two species of Euthemisto, compressa and bispinosa (Fig. 68). This genus as a whole (the rela- tionship of the two species to each other will be considered later) was generally distributed over the Gulf of Maine (Stations 10058, 100S7 to 10105); it was present on George's Bank
Size: 1618px × 1545px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorha, bookcentury1800, bookdecade1860, booksubjectzoology
