of the Fishery Board for Scotland. 77 



1906. 



April, — Pelagic Crustacea were apparently scarce at the Bai-more 

 station in April. Four vertical hauls were collected at 15, 30, 45, and 75 

 fathoms, but the catches were small. That from 15 fathoms contained 

 about 100 Calanus, one or two Centropages hamatios, and a few larval 

 Balani, while that from 30 fathoms contained about 200 Calanus and 

 about half that, number of Pseudocalanus. The catch from 45 fathoms 

 diftered little from the one just referred to, but though that from 

 75 fathoms was also small, Calanus and Pseudocalanus were rather more 

 numerous, and there were also present a few Centropages haTuatus and 

 Temora longicornis, and one or two larval Balani, 



June. — The next series of gatherings from this station were collected in 

 June. They were vertical hauls from depths similar to those already 

 mentioned, i.e., 15, 30, 45, and 60 fathoms, and one from near the bottom 

 (80 fathoms). In these gatherings pelagic Crustacea were rather more 

 plentiful. The first three hauls measured respectively 3*5, 10-5, and 

 9*5 c.c.'s, that from 60 fathoms 20 c.c.'s, and the one from 80 fathoms 

 25 c.c.'s. The contents of the various hauls consisted almost entirely of 

 Calanus. 



August. — Five gatherings were also collected here in August. The first 

 four did not differ greatly in any way from those just described, but the 

 last one (from 75 fathoms) was considerably larger than that collected in 

 June, and measured 100 c.c.'s. Calanus and Pseudocalanus were present 

 in about equal numbers in the first four gatherings, but the last one 

 consisted almost entirely of Calanus. A few Euchceta, Parapontella brevi- 

 cornis, Rhoda raschi, and Sagitta were observed in some of the hauls. The 

 first four hauls measured respectively 3, 7"5, 15'5, and 20*5 c.c.'s. 



September. — Five hauls were collected in September. The smallest was 

 from 15 fathoms and measured only 1 c.c. ; the next two from 30 and 45 

 fathoms were also small — they each measured 1*5 c.c.'s; those from 60 

 and 75 fathoms Avere considerably larger, and measured respectively 15*5 

 and 70 c.c.'s. The last two gatherings consisted almost entirely of 

 Calanus, Euchceta norvegica, of which there were a few specimens, being 

 the only other species observed. Calanus also formed the chief portion of 

 the other gatherings, but a few specimens of Anomialocera patersoni 

 occurred in the gathering from 15 fathoms, while Pseudocalanus formed 

 about 2 per cent, and Acartia clausi 5 per cent, of those from 30 and 45 

 fathoms. 



October. — The gatherings collected in October were similar to those 

 just described, and the quantity of each catch did not differ to any great 

 extent, so that, apparently, the number and general distribution of the 

 pelagic Crustacea remained much the same as it Avas in September. The 

 gatherings consisted chiefly of Calanus, but a few Euchceta and Nyctiphanes 

 norvegicus occurred in the hauls from 60 and 75 fathoms, and there were 

 also a few Sagitta in some of the gatherings. 



1907. 



April. — Five vertical hauls were collected in April 1907. They were 

 very small, and the total catch scarcely measured 6 c.c.'s. The contents of 

 the various gatherings consisted for the most part of Calanus, but the 

 following species were also represented, though very sparingly, viz. : — 

 Acartia clausi, Anomalocera patersoni, Centropages hamatus, Euchceta 

 norvegica, Pseudoccdanus elongatus, and Temora longicornis. A few larval 

 Balani, Sagitta, and fish ova were observed. 



May.— The gatherings collected in May, when compared with the April 

 collections, showed a considerable increase in the number of pelagic 



