1 NOAA Technical Report NMFS 140 



' r 



Figure 4 



Bottom view of Campbell grab sampler. Camera housing is installed in right-hand bucket and strobe light is in the 

 left-hand bucket. Shutter trip weight is in foreground. Width of the buckets (vertical dimension in photograph) is 57 cm. 



Approximately 20% of the samples were analyzed by 

 the New York Soil Testing Laboratory (Wigley, 1961a). 

 The remaining 5% were classified using field techniques 

 by K.O. Emery of the Woods Hole Oceanographic Insti- 

 tution or by National Marine Fisheries Service person- 

 nel. For additional information concerning sediment 

 analyses, methodology, and detailed results, see refer- 

 ences listed by Emery (1966b) and the section of this 

 report titled "Description of the Region." 



Bathymetry 



Water depths, in meters, were obtained by means of 

 echo sounders and precision depth recorders and cor- 

 rected for hydrophone transducer depth and tempera- 

 ture effects on the velocity of sound in water. 



Temperature 



Water temperature and salinity data were based prima- 

 rily on the hydrographic report prepared by John B. 

 Colton et al. (1968). which gives detailed information 

 obtained on eight quarterly (March, May, September, 

 and December) hydrographic survey cruises from 1964 

 to 1966. Each cruise covered the entire area from Nova 

 Scotia to New York. We also used several thousand 

 bottom temperature records obtained on seventeen 

 bottom trawl survey cruises of the research vessels Alba- 

 tross III, Albatross TV, and Delaware, conducted by the 

 Bureau ol Commercial Fisheries Biological Laboratory, 

 Woods Hole, during the years 1956 through 1965. Ad- 

 ditional sources of reference and temperature-salinity 

 data are: Townsend (1901); Sumner, et al. (1913); 

 Bigelow (1927, 1933); Edwards et al. ( 1962); Hathaway 



