4 EEPORT OF COMMISSIONER OF FISH AND FISHERIES. 



6. If diminished or increased, what is the supposed cause % 



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



D. Size. 



S. What is the greatest 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 years. 



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



E. Migrations and Moyements. 



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

 subsequent movements 1 



12. By what route do they leave the coast ? 



13. Where do they spend the winter season "l 



14. 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 ? 



16. 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 1 ? 



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 1 



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

 after arriving ? 



21. Do 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 anadromous ; that is, do they run up from the sea 

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



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

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

 up stream % 



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

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

 breeding and die f 



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



29. Do these fish come on to the breeding-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 rocks, &c. "? 



31. What depth of water is preferred by these fish % 



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



