PROGRESS IN BIOLOGICAL INQUIRIES, 19 29 1081 



INDEPENDENT ACTIVITIES AT THE FISHERIES BIOLOGICAL 

 LABORATORY, WOODS HOLE, MASS. 



In accordance Avith the bureau's long established policy of en- 

 coura*»ing independent research in marine biology and related sub- 

 jects, the facilities of the laboratories at Woods Hole, Mass., were 

 made available to a number of investigators from various educational 

 institutions. Personnel so acconnnodated at Woods Hole included : 

 Dr. Edwin Linton, University of Pennsylvania, studying helminth 

 parasites of fishes; Dr. C. J. Connolly, Catholic University, color 

 reactions of crabs; Albert J. Dalton, College of the City of New 

 York, embryonic development of fishes; Paul S. Conger, United 

 States National Muesum, marine diatoms; R. E. Bowen, Harvard 

 University, the eighth nerve of fishes; Kendall W. Foster, Har- 

 vard University, coloration in fundulus; Dr. John C. Hemmeter, 

 Johns Hopkins University, isles of Langerhans in Lophius; M. E. 

 Holcomb, Princeton University, luminous marine bacteria; Dr. N. A. 

 Cobb, Department of Agriculture, nematodes ; Leon C. Chesley. Duke 

 University, enzymes in fishes; W. E. Bullinton, of Randolph Macon 

 College, spiraling in the ciliate Frontonia; Dr. F. G. Hall, Duke 

 University, physiolog}^ of fishes; and Dr. I. E. Gray, Tulane 

 University, physiology of fishes. 



MacMILLAN LABRADOR AND BAFFIN LAND EXPEDITION 



At the request of Commander Donald B. MacMillan, Doctor Ken- 

 dall was detailed to accompany the expedition to Baffin Land for 

 the purpose of studying the geographical distribution of the fishes, 

 particularly salmon and trout (chars). A preliminary report ap- 

 pears in Fisheries Service Bulletin, No. 174, November 1, 1929. 



Not much was added to what was already known concerning the 

 distribution of the salmon. There is no special salmon fishery of 

 much importance north of latitude 55°. Those caught farther north 

 appear to be incidental to the trap fishery for cod. According to 

 report occasionally a few salmon are caught as far north as Rvans 

 Bay. 



Northern chars, called " sea trout " are abundant all along the 

 Labrador coast and were found in two places in Frobisher Bay, 

 Baffin Land. 



The brook trout {Salvelinus fontinaUs) also occurs as " sea trout " 

 in southern Labrador and probably as far north as the species occurs 

 in coastal fresh waters. The most northern point of occurrence of 

 this trout was in the tidal portion of a stream flow^ing into Nain 

 Bay. Young fish of both species were found at low tide between tide 

 limits at several places in Labrador. Some brooks would contain 

 only t)ne or the other of the two forms. A small lake or pond at Naui, 

 so far as could be ascertained, contained only young or dwarfs of the 

 sea trout type. The males were highly colored like adults. The 

 outlet of the pond contained only the fontinaUs form, some of which 

 were 8 or 9 inches long. It is difficult to conceive how these particu- 

 lar waters were populated, for the foot of the outlet is obstructed 

 by a waterfall so formidable that it seems hardly possible that trout 

 could surmount it and there is no inlet, though possibly in some 

 seasons there may be another outlet from the head of the pond which 



