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Pagina 280
Spawning Seasons . Spawning takes place in the spring , summer , or autumn ,
or in both spring and autumn , depending on the locality . Apparently there is no
time in the year when spawning , off Europe at least , does not take place ...
Spawning Seasons . Spawning takes place in the spring , summer , or autumn ,
or in both spring and autumn , depending on the locality . Apparently there is no
time in the year when spawning , off Europe at least , does not take place ...
Pagina 301
If food is found and if other conditions are favorable for survival , then the
spawning season is a successful one . The success or failure of a spawning
season in a river is usually evident from the size of subsequent catches when the
fish ...
If food is found and if other conditions are favorable for survival , then the
spawning season is a successful one . The success or failure of a spawning
season in a river is usually evident from the size of subsequent catches when the
fish ...
Pagina 336
Spawning . This species is very prolific ; a total of 644 females from the Potomac
River yielded an average of 102,800 eggs per fish ... The time of spawning varies
from some time in March in Chesapeake Bay to late April or May in Maine .
Spawning . This species is very prolific ; a total of 644 females from the Potomac
River yielded an average of 102,800 eggs per fish ... The time of spawning varies
from some time in March in Chesapeake Bay to late April or May in Maine .
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Sommario
Names of Bones by G W Mead and Margaret G Bradbury | 20 |
Order Lepisostei by R D Suttkus | 61 |
Text and Footnote References | 105 |
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Fishes of the Western North Atlantic: Editorial Board: Editor-in ..., Parte 4 John Tee-Van Visualizzazione frammento - 1948 |
Fishes of the Western North Atlantic: Editorial Board: Editor-in ..., Parte 8 John Tee-Van Visualizzazione frammento - 1948 |
Parole e frasi comuni
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