SEA-FISHEBIES LABORATORY. 123 



February 2nd between Bahama Bank and Selker Light Vessel. 

 The last plaice eggs were from a sample of plankton collected 

 half-way between Bahama Bank and the " Hole " on April 17th. 

 The following table shows the distribution and numbers of 

 plaice eggs obtained from the plankton collected by the steamer 

 in 1913. 



Number 



Position. Date. of eggs 



present. 



5 miles W. by S. of Selker Light Vessel 18/2/1913 ... 1 



Bahama Bank 18/2/1913 ... 2 



Selker Light Vessel 18/2/1913 ... 3 



Between Bahama Bank and Selker Light Vessel ... 18/2/1913 ... 8 



Duddon Buoy 24/2/1913 ... 2 



10 miles W. from Duddon Buoy 24/2/1913 ... 2 



1 mile S. from Duddon Buoy 24/2/1913 ... 1 



20 miles N.W. | N. from Piel Gas Buoy 25/2/1913 ... 1 



15 miles S.W. from Morecambe Bay Light Vessel ... 26/2/1913 ... 1 



10 miles N. from Great Orme ? s Head 26/2/1913 ... 1 



10 miles S.W. from Morecambe Bay Light Vessel ... 26/2/1913 ... 2 



Selker Light Vessel 17/3/1913 ... 6 



Between Selker Light Vessel and Bahama Bank ... 17/3/1913 ... 9 



Bahama Bank 18/3/1913 ... 2 



25 miles W.N.W. from Piel Gas Buoy 18/3/1913 ... 2 



£ way between " Hole" and Bahama Bank 18/3/1913 ... 10 



15 miles W.N.W. from Piel Gas Buoy 15/4/1913 ... 2 



Morecambe Bay Light Vessel 15/4/1913 ... 1 



£ way between Bahama Light Vessel and " Hole"... 17/4/1913 ... 3 



Pleuronectes' limanda, Linn. — Dab. 

 The first dab eggs were observed as early as February 24th 

 in plankton collected one mile S. from Duddon Buoy. They 

 appeared to be generally distributed all over the Irish Sea 

 from Bahama Bank to Red Wharf Bay and Nelson Buoy 

 during March, April and May. Dab eggs were present in 

 plankton collected in Carnarvon Bay on May 13th and 28th. 

 The maximum spawning period of this fish occurred probably 

 early in May. A tow-netting taken twenty-four miles W.N.W. 

 from Piel Gas Buoy, on May 5th, contained two thousand 

 four hundred eggs of the dab. Another sample, taken at Nelson 

 Buoy on May 9th, was estimated to contain three thousand 

 five hundred eggs of dab along with the pelagic eggs of other 

 species of fish. 



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