

of the Fishery Board for Scotland. 86 



The two vertical hauls collected at this time, one from 15 and the other 

 from 25 fathoms, measured respectively 13 and 16 c.c.'s. The contents of 

 both gatherings consisted chiefly of the species mentioned. Anomalocera 

 pater soni and Centropages hamatus were also present, but they formed 

 only about 1 per cent, of the whole catch. A small number of Evadne 

 nordmanni, young Decapoda, and Schizopoda were also observed. 



August and September.— The samples collected in August and Sep- 

 tember were very small, and showed a considerable decrease in the number 

 of pelagic Crustacea at this station. The contents of the various gather- 

 ings consisted almost entirely of Calanus. 



November and December.- — There was a somewhat similar absence of 

 pelagic Crustacea at this station when visited in November, but in 

 December a distinct, though not very extensive, increase appeared to have 

 taken place, especially in the deeper water. A vertical haul from 28 

 fathoms collected in December measured 2 '5 c.c.'s, and consisted chiefly of 

 Calanus. 



Station V. (midway between Pennimore and Newton Bay). 



Forty-three gatherings were collected at this station in 1905, twenty- 

 one in 1906, twenty-one in 1907, and thirty in 1908, and are briefly 

 described below. 



1905. 



January. — The gatherings collected at this station in January 1905 

 comprised three horizontal and four vertical hauls. The horizontal 

 gatherings collected at the surface and at 15 and 30 fathoms were all 

 moderately large. The surface gathering measured 152 c.c.'s, and con- 

 sisted almost entirely of Calanus. One or two other species, including 

 Fseudocalanus and Acartia clausi, were also noticed, but they occurred 

 very sparingly. The other two gatherings from 15 and 30 fathoms 

 measured respectively 60 and 43 c.c.'s. The vertical hauls were from 15, 

 30, 45, and 59 fathoms, and measured respectively 12, 24*5, 30, and 35 c.c.'s. 

 Calanus formed the largest portion of the contents of these hauls, and the 

 quantities captured showed them to be fairly plentiful all through the 

 water. 



March. — The gatherings collected in March showed that Calanus were 

 still fairly abundant and more or less evenly distributed at the various 

 depths represented by the different hauls. The four vertical hauls collected 

 at this time were from 15, 30, 45, and 59 fathoms, and measured 18, 19, 

 26, and 25 c.c.'s respectively. In the haul from 59 fathoms a few 

 Nyctiphanes were observed, but otherwise the contents of the different 

 gatherings appeared to consist entirely of Calanus. 



April. — Five of the gatherings collected in April were horizontal hauls 

 and four were vertical. One of the horizontal hauls was taken at the 

 surface, one at 15, 30, and 45 fathoms, and one near the bottom. The 

 surface gathering was comparatively small, but the next three were large. 

 They measured respectively 5*5, 110, 87, and 65 c.c.'s; their contents 

 consisted almost entirely of Calanus, the only other species observed being 

 a few Pseudocalanus, Centropages hamatus, Acartia clausi, and a small 

 number of Decapod larvae. The bottom gathering contained a quantity of 

 mud, mixed up with which were several Molluscan shells, chiefly Lamelli- 

 branchs and the undernoted Crustacea — Leptognaihia brevimana, Harpinia 

 pectinata, Campylaspis costata, and a few Calanus. 



The vertical hauls were from 15, 30, 45, and 60 fathoms, and measured 

 respectively 5, 13, 19, and 22 - 5 c.c.'s. The contents of these gatherings 

 did not differ much from the others, except that in the haul from 60 



