Table 17. — Numbers and lengths of Atlantic silver- 

 sides caught with an otter trawl near Woods Hole, 

 Mass., September 1961 to December 1962. (Silver- 

 sides were caught only in the semimonthly periods 

 shown.) 



Date 



Number 



Fork length 



Mean 



Range 



1961 



Mm. 



68 

 72 

 78 

 75 

 70 

 76 



66 

 18 

 29 

 39 

 56 

 56 

 62 

 67 

 71 

 71 

 74 

 80 



Mm. 



60-85 

 63-112 



55-106 



54-97 



61-86 



13-26 

 18-39 

 36-46 

 44-79 

 44-75 

 55-71 

 57-81 

 63-79 

 65-80 

 63-98 

 72-88 



Scophthalmtis aquosus (Mitchill), window- 

 pane. 



A single windowpane (sand flounder), 53 

 mm. long, was caught in mid-May 1962. 

 The size indicated that it was a 0-group 

 fish from spring spawning (Bigelow and 

 Schroeder, 1953). 



Pleuronectidae — righteye flounders 



Pseudopleuronectes americanus (Walbaum) , 



winter flounder. 



Winter flounders were caught in all 

 months from September 1961 to December 

 1962, although they were scarce during 

 the winter (table 18, fig. 3). Young of 

 the year fish did not appear in catches 

 until November 1961, when trawling in 

 the shallow water near the salt marsh 

 (fig. 1) was first begun. In 1962 the 0- 

 group fish were 17 to 32 mm. long when 

 they first were caught in early June. They 

 probably descend to the bottom at about 



this length, for we have caught planktonic 

 stages as long as 17 mm. in May in this 

 area. 



The growth of 0-group fish may be traced 

 by following the progression of mean 

 lengths in 1962 (table 18). They grew 

 to a length of about 73 mm. by late fall. 

 In 1961 the 0-group winter flounders were 

 about 87 mm. long in late fall, suggesting 



Table 18. — Numbers and lengths of winter flounder 

 caught with an otter trawl near Woods Hole, 

 Mass., September 1961 to December 1962. (Winter 

 flounder were caught only in the semimonthly 

 periods shown.) 



' Assumed to be young of the year on the basis of 

 data given by Bigelow and Schroeder (1953) and from 

 examination of length frequency distributions and oto- 

 liths in the 1961-62 fish. 



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