4 EEPORT OF COMMISSIONER OF FISH AND FISHERIES. 



G. If ditniuisbed or increased, what is the supposed cause'? 



7. What is the amount or extent of the change in abundance ? 



D. Size. 



8. "What is the gTeatest size to which it attains, (both length and 

 weight,) and what the average? 



9. State the rate of growth per annum, if known ; and the size at 

 one, two, three, or more jears. 



10. Do the sexes differ in respect to shape, size, rate of growth, &g. ? 



E. Migrations and Movements. 



11. By what route do these fish come into the shore ; and what the 

 subsequent movements ? 



12. By what route do they leave the coast"? 



13. Where do they spend the winter season f 



11. When are the fish first seen or known to come near the shore, and 

 when does the main body arrive; are the first the largest; are there 

 more schools or runs than one coming in, and at what intervals ? 



15. When do the fish leave shore, and is this done by degrees or in a 

 body ? 



10. Is the appearance of the fish on the coast regular and certain, or 

 do they ever fail for one or more seasons at a time, and then return in 

 greater or less abundance ; if so, to what cause is this assigned ? 



17. How do the runs differ from each other in number and size ? 



IS. Which sex comes in first; and how far advanced is the spawn in 

 the female on first arriving? 



19. Will either sex, or both, take the hook on first arriving ; and if so, 

 is there any period of the stay of the fish when they refuse it ? 



20. If they refuse the hook at first, how soon do they begin to take it 

 after arriving ? 



21. i)o the schools of fish swim high or low ; and is their arrival 

 known otherwise than by their capture ; that is, do they make a ripple 

 on the water ; do they attract birds, &c. "? 



22. What is the relation of their movements to the ebb and flow of 

 the tide ? 



23. Does spawn ever run out of these fish taken with a hook ? 



24. Answer same question in regard to fish taken in nets or pounds ; 

 is the spawn ever seen in any quantity floating about inside of nets ? 



25. Are these fish auadromous ; that is, do they run up from the sea 

 into fresh water for any, and for what, purpose ? 



26. If auadromous, wlien are they first seen off the coast; when do 

 they enter the mouths of the rivers, and what is the rate of progression 

 u]) stream ? 



27. If auadromous, what the length of their stay in fresh water, 

 and when do they return to the sea, or do they becomc'exhausted by 

 breeding and die ? 



28. Do the different sexes or ages vary in this respect? 



29. Do these fish come on to the bVeeding-grounds before they are 

 mature ; or do you find the one or two year old fish with the oldest? 



30. What are the favorite localities of these fish ; say whether in 

 still water or currents, shallow or deep water, on the sand, in grass, 

 about locks, &C. ? 



31. AVhat depth of water is preferred by these fish ? 



32. What the favorite temperature and general character of water ? 



