BIGELOW: EXPLORATIONS IN THE GULF OF MAINE. 129 



ation 



Volume 



Station 



Volume 



14 



20 



34 



trace 



15 



very small 



35 



trace 



16 



u a 



36 



7 



19 



4.7 



38 



2 



20 



4.7 



40 



3.5 



21 



(less than 2) 



42 



13 



22 



9.5 



43 



4.5 



23 



19 



44 



4.5 



When analyzed, the foregoing tables, which in general bear each 

 other out, show that we may separate the catches into three classes, 

 rich, fair, and poor. The first, which I limit arbitrarily to stations 

 where the volume of the quantitative catch was three or more cubic 

 centimetres, and the number of copepods ninety or more in every 

 three cc. when diluted to 150 cc. with water, includes Stations 2, 4, 7, 

 8, 22, and 25; the second, with quantitative hauls of one to three cc, 

 and ten to ninety copepods, Stations 11, 15, 25, 28, 31, 36, 38, 43; the 

 third, with quantitative haul less than one cc. in bulk, and less than 

 fifteen copepods, Station 35. These classes agree fairly well with 

 the volumes of the qualitative (four-foot net) hauls, as is shown by the 

 following table, the stations in italics being the ones at which quantita- 

 tive hauls were made. 



1 





2 





3 



Qualitative 800 cc. or more 

 Quantitative 3 cc. or more 

 with 90 or more copepods 

 2 



Qualitative 200-800 

 Quantitative 1-3 

 copepods 10-90 

 11 



Qualitative below 200 

 Quantitative less than 1 

 copepods, fewer than 10 

 16 



4 





15 





21 1 



6 





19 





33 



7 





20 





34 



8 





27 





35 



12 





28 1 







14 





29 







22 





31 







23 





36 







25 





38 







28 





40 







32 





43 







42 

 1 Station 28 is on the line between 1 and 2, 21 on the line between 2 and 3. 



