Systematics of Prickly Sculpin, II — Krejsa 
plankton net in the Second Narrows region of 
Owikeno Lake (about 30 miles from the sea), 
on the coast of central British Columbia. It is 
presumed that the parents spawned in fresh 
water. 
MATERIALS AND METHODS 
To document the supposed occurrence and to 
determine the success of intertidal spawning of 
prickly sculpins in the coastal streams, the Little 
Campbell River (Fig. 1, site 2) was chosen as 
a study stream. In 1960-1961, a series of 18 
permanent collecting sites (Fig. 2) was sampled 
at biweekly intervals for a period of one year, 
and at monthly intervals for an additional six 
months. The lower reaches of the river, stations 
C-l to C-3, were also sampled several times in 
late winter and early spring of 1962 and 1963, 
to obtain live specimens for laboratory studies. 
Additional live specimens for use in laboratory 
studies were collected from the following local- 
ities (Fig. 1) : site 1, Nile Creek and Big Qual- 
icum River, Vancouver Island; site 3, South 
415 
Alouette River; site 4, Kenworthy and Edwards 
creeks (Hatzic Lake); site 5, Sweltzer Creek 
(outlet of Cultus Lake) ; and site 6, Squakum 
Lake (Lake Erroch). 
A 3 mm-mesh, woven-nylon seine, 3 m wide 
X 2 m deep, was mounted on collapsible tele- 
scoping aluminum poles and used for all field 
collections. Salinities were measured with den- 
sity hydrometers. 
SAMPLING LOCALITIES AND STUDY STREAM 
The primary study area was the Little Camp- 
bell River (Campbell Creek), which is ap- 
proximately 15 miles long and empties into 
Semiahmoo Bay between White Rock, British 
Columbia and Blaine, Washington (site 2, and 
inset of Fig. 1). The stream’s drainage area 
is approximately 28 square miles. 
Collection sites are shown in Figure 2. Sta- 
tion 0-1 is located on a sand-mud flat outside 
the main river channel. Station C-0 is located 
below the railroad trestle at the mouth of the 
river in the main channel, station C-l about 50 
Fig. 1 . Localities for spawning populations of Cottus asper used in life history studies. Site 2 (inset) is 
expanded in Figure 2. Other site localities are listed in text. 
