SEA-FISHERIES LABORATORY. 359 



We have a surface gathering of much the same type 

 as the above taken on August 12th from Loch Ewe, a 

 little further north on the mainland. It is on the whole 

 more neritic : the animals are much the same with the 

 addition of the neritic Evadne nordmanni in numbers, 

 and the Diatoms include the neritic Guinardia flaccida 

 and Lauderia borealis. 



Sound of Sleat. 



August 17th, middle of Loch Nevis, 76 fathoms. 

 This is comparable with two vertical hauls from 

 70 fathoms on July 17th, 1908, one from 75 fathoms on 

 July 14th, 1909, and also one from 70 fathoms on 

 July 21st, 1911. In all these cases the gathering is 

 mainly a zoo-plankton of oceanic type. 



A surface haul on August 17th, 1912, contained no 

 Diatoms, and the animals were mostly oceanic forms; 

 and a night gathering in the little bay at Tarbet, Loch 

 Nevis, where we were anchored on the 18th, showed also 

 a small zoo-plankton only. 



It is rather remarkable that this fjord, running far 

 into the land and sheltered, though at some distance, 

 from the open Atlantic by the peninsula of Sleat and 

 the islands of Eum and Eigg, should so constantly show 

 a zoo-plankton partly at least of oceanic type. The 

 Sound of Sleat and the great lochs opening from it 

 evidently must receive some oceanic plankton from 

 outside to mix with the neritic forms they contain. It is 

 possible that earlier in the summer they are filled with 

 a neritic phyto-plankton, but we have never found them 

 in that condition in July or August. 



