Table 5.— Continued. 



(B) 



Dealer 



L-5 



Mo . Sept. Da y 10 



Year 1974 







Bloods (B) 









M. R. No. 



No. Worms 



or 



Culls 



Other 



Total, Including Culls 



( i f any ) 



Dug 



Sands (S) 









1 



775 



S 



8 



- 



783 



- 



750 



S 



10 



- 



760 



3 



775 



S 



5 



- 



780 



- 



750 



s 



5 



- 



755 



4 



775 



s 



3 



90B 



778 



- 



750 



s 







35B 



750 



5 



775 



s 



10 



- 



785 





750 



s 



10 





760 



Note - add 12 5 B to blood- 

 worm form 

 (L-5, 9/10/74) 





Total Dug 





Total Culls 





Total Time 





6100 





51 





4.66 hrs 





Total From 



Culls from 







Diggers 





diggers 









Sampled 





sampled 









3100 





26 







bility expansion and ratio estimates. 3) time efficiency values. 4) 

 optimum and proportional allocation, and 5) length-weight rela- 

 tionships, are presented in Appendix A. 



Verification of Sampling Procedures and 

 Responses to Interview Questions 



The methodology employed in several of the marine worm sam- 

 pling and processing procedures was closely scrutinized. Since we 

 anesthetize and measure the worm's length immediately prior to 

 weighing them, studies were performed to determine what effect 

 the anesthetic might have on the worm's weight. In these studies, 

 worm weights were compared before and after anesthetization with 

 0.2% propylene phenoxytol. 



Another problem associated with length measurements on soft- 

 bodied Annelids involved a determination whether the measurements 

 were reproducible. This was investigated by repetitious measure- 



ments, reviving of individuals of both species between measure- 

 ments, and a comparison of the results. 



Other experiments were performed to compare length differences 

 resulting from relaxing and measuring the same assorted blood- 

 worms in two different anesthetics. One group of bloodworms was 

 first acclimated to high salinity water, anesthetized in 0.2% propyl- 

 ene phenoxytol. and then measured. These worms were then 

 revived in high salinity water and the following day they were anes- 

 thetized and measured in 7.5% MgCf. The entire experiment was 

 then reversed using another group of assorted worms and the results 

 of both experiments were compared. 



Experiments were performed to determine if the manner in 

 which a 25-worm sample was obtained from the digger produced a 

 mean length and weight estimate that was truly representative of the 

 mean length and weight of all the worms present in the bucket 

 (bloodworms) or hod (sand worms). All worms used in these exper- 

 iments were obtained from two commercial diggers. A bucket con- 



10 



