/ ) /^MARTHAS 

  «i/ VINEYARD 



CAPE LOOKOUT 

 .3 



FISHERY BULLETIN: VOL. 71, NO. 2 

 Table 1. — RV Dolphin survey, 1965-66. Transect locations. 



shallow (0 to 15 m) and deep (18 to 33 m). 

 Collections were made during a 24-hr workday 

 on all cruises, so the number of tows by night 

 and by day varied on each transect from cruise 

 to cruise. Cruises were designed to give infor- 

 mation on the time and place of occurrence 

 of many species of fish larvae over an extensive 

 geographic area, and sampling was inadequate 

 to estimate mortality or recruitment. For pur- 

 poses of comparison, numbers of larvae are 

 expressed as the number taken per tow. Zero 

 catches were not included in these computations 

 but are indicated in appropriate figures. A 

 midwater trawl of 6.4-mm cod end mesh used 

 for collecting juvenile fishes did not catch sand 

 lances. This net was not used extensively during 

 the first four cruises in areas where sand lance 

 juveniles would have been expected. Plankton 

 samples were preserved in 5% Formalin, ^ and 

 all fish eggs and larvae were sorted under a 

 microscope. Sand lances were identified, counted, 

 and measured (total length) with an ocular 

 micrometer. No demersal eggs or sand lance 

 larvae with large yolk sacs were collected. 

 To determine the number of Ammodytes 

 species represented in these collections, we 

 checked pigmentation carefully on all speci- 

 mens. Meristic characters counted were dorsal 

 and anal fin rays and vertebrae. Skeletons of 

 specimens, within the length range of 34 to 

 60 mm, were prepared by the enzyme presoak 

 method of Ossian (1970). Following 7 to 14 



Figure 1. — RV Dolphin survey, 1965-66. Locations of 

 transects and collecting stations. 



^ Reference to trade names does not imply endorsement 

 by the National Marine Fisheries Service, NOAA. 



372 



