SEA-FISHERIES LABORATORY. 427 



Isle of Man at any particular time in the year, it does 

 not necessarily follow that they will also be absent from 

 the general Irish sea plankton after they cease to occur 

 in that area. The last recorded eggs from the area in 

 1912 were taken on June 3rd, but they were present 

 in the plankton collected in Carnarvon Bay on the 2nd 

 and 3rd of July. Mcintosh and Masterman state that 

 the dragonet appears to spawn from May to August. 

 Ehrenbaum, in " Nordisches Plankton," says that it 

 spawns continually from April to August. In the 

 English Channel it spawns from January to June. From 

 the records above, we can safely state that the dragonet 

 is spawning in some part of the Irish Sea from the 

 middle of January to the beginning of August. 



The following lists give a summary of the results of 

 several hauls with the shear-net at Stations I and III 

 in the south-west area off the Isle of Man in April, 1912. 



Station I. 3 hauls, April 13, Station III. 4 hauls, April 12, 





15 and 17 







18, 



19 and 22 



Eggs — 





Nos. 





Nos. 





Cod ... 





. 756 





423 





Whiting 

 Green Cod 





861 

 . 329 





797 

 206 





Bib ... 





. 571 





461 





Rockling 

 Plaice 





. 119 





140 

 1 





Sail Fluke 





. 271 





167 





Dragonet 





. 42 





141 





Larval Fishes — 



Nos. 



Length. 



Nos. 



Length. 



Post Larval Gadoids 



.. 33 



2—9-5 mm. 



87 



3—8-5 mm 



,, ,, 



Pleuronectids. 



1 



7'5 mm. 



8 



5 — 8 mm 



" 



Butter fish 



(Pholis) 

 Cottus sp. 



31 



4 



6 — 15 mm. 



4-5 — 7 mm. 



46 



4 



6-5—21 

 5-5—6-5 



, r ,, Liparis sp. 

 Larval Gadoids 



. 1 





1 



7-5 



,, Pleuronectids 



. 1 





1 





