BULLETIN OF THE UNITED STATES FISH COMMISSION. 119 
DREDGING STATIONS OF THE UNITED STATES FISH COMMISSION 
STEAMER FISH HAWK, LIEU. Z. L. TANNER COMMANDING, FOR 
1880, 1851, AND 1882, WETH TEMPERATURE AND OTHER OBSERVA- 
TIONS. 
Arranged for publication 
By RICHARD BRATHBUN. 
In the summer of 1880, the headquarters of the United States Fish 
Commission were established at Newport, R. I., and the steamer Fish 
Hawk, then newly constructed, made its dredging and trawling trips 
from there, whenever the weather permitted. The field of explorations 
for the summer included Narragansett Bay, Sakonnet River, and the 
regions to the northward, eastward, and southward of Block Island. In 
September and the first part of October, three trips were made by the 
Fish Hawk to the inner edge of the Gulf Stream slepe, between lati- 
tudes 40° 05/ 42” N. and 39° 46’ N., and longitudes 70° 22’ 06’ W. and 
71° 10’ W., in depths of 64 to 487 fathoms, resulting in the discovery of 
a new and exceedingly rich fauna, both as regards fish and marine 
invertebrates. On her passage to Washington in November, the Fish 
Hawk also trawled off the mouth of Chesapeake Bay, in depths of 18 
to 300 fathoms. 
During the summers of 1881 and 1882, the headquarters of the Com- 
mission were at Wood’s Holl, Mass. As the shallow waters of this region 
had been quite fully explored by the Commission in 1871 and 1875, very 
little time was expended in work near land; but advantage was taken of 
all pleasant weather to still further investigate the rich faunal region of 
the Gulf Stream slope, discovered the previous year. Seven trips were 
made to this region, in 1881, between latitudes 39° 40’ N. and 40° 22’ N., 
and longitudes 69° 15’ W. and 71° 32/ W., in depths of 43 to 782 fathoms. 
A line of dredgings and trawlings, at intervals of about four miles, was 
made from off Noman’s Land to the Gulf Stream slope, in order to 
connect the inshore with the offshore stations; and a few trips were 
also made in Vineyard Sound, Buzzard’s Bay, and off Chatham, Cape 
Cod, on, and in the vicinity of, Crab Ledge. Cod trawl-lines were set 
on most of the outside trips, for the purpose of catching fish that would 
not enter the beam-trawl. 
In 1882, five deep-water trips, were made to the same region, extending 
the area of dredgings considerably beyond its former eastern and 
western limits. A few hauls of the dredge and beam-trawl were taken 
in Vineyard Sound, and one trip was made to the one-hundred fathom 
line, off the eastern side of Cape Cod. The most eastern haul on the 
Gulf Stream slope for 1882, was in latitude 40° 08’ N. and longitude 68° 
45’ W.; and the most western in latitude 39° 31’ N. and longitude 72° 
06’ W.; the deepest haul was in 787 fathouis. Cod-trawls were set on 
two of the trips only. : 
