Table 15. — Numbers and lengths of grabbles caught 

 with an otter trawl near Woods Hole, Mass., Sep- 

 tember 1961 to December 1962. (Grubbies were 

 caught only in the semimonthly periods shown.) 



Table 16. — Numbers and lengths of rock gunnels 

 caught with an otter trawl near Woods Hole, 

 Mass., September 1961 to December 1962. (Rock 

 g^unnels were caught only in the semimonthly 

 periods shown.) 



— may have been young from spawning 

 of the previous winters, on the basis of 

 growth information for the European 

 form summarized by Bigelow and Schroe- 

 der (1953). 



Stromateidae — butterfishes 



Poronotus triacanthus (Peck), butterfish. 

 Butterfish were caught only in 1962 dur- 

 ing three summer months: 12 fish in early 

 July (mean length, 39 mm.; range, 35 to 

 43 mm.); 2 in August (mean length, 42 

 mm.; range, 41 to 44 mm.); and 13 in 

 early September (mean length, 51 mm.; 

 range, 42 to 64 mm.). We judged all to 

 be 0-group fish on the basis of growth data 

 reported by Bigelow and Schroeder 

 (1953). 



Atherinidae — silversides 



Menidia menidia (Linnaeus), Atlantic sil- 



verside. 



Silversides were caught in some numbers 

 in October to December 1961 and July to 

 December 1962; also, a single specimen 

 was taken in February 1962 (table 17, 

 fig. 3) . The small individuals 13 to 26 mm. 

 long that began to appear in July clearly 

 were 0-group fish (Bigelow and Schroeder, 

 1953) . This age-group apparently was 

 the only one sampled from summer on in 

 1962. A measure of average growth for 

 this group may be obtained by following 

 the progression of mean lengths from 18 

 mm. in July to 80 mm. in December. 



Bothidae — lefteye flounders 



Paralichthys dentattis (Linnaeus), summer 



flounder. 



Sixty summer flounders were caught in 

 October 1961 and in May to October 1962. 

 The mean length of 16 that were measured 

 was 420 mm. and the length range 340 

 to 520 mm. The others were not measured, 

 but their length distribution was about 

 the same as that of the measured ones. 

 No young fish, less than 300 mm. long, 

 were caught. 



12 



