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Pagina 51
at water temperatures ranging between 56 ° –64 ° F . Among 63 adult females ,
three were “ pasters ” ; i . e . with the roe in the form of a slimy , grayish white
paste consisting of squeezed eggs , white yolks , and ruptured membranes .
Between ...
at water temperatures ranging between 56 ° –64 ° F . Among 63 adult females ,
three were “ pasters ” ; i . e . with the roe in the form of a slimy , grayish white
paste consisting of squeezed eggs , white yolks , and ruptured membranes .
Between ...
Pagina 465
... the female moved upstream of the bed and cut vigorously with her tail , thus
covering the eggs with gravel . Each spawning act took place in 10-15 seconds ,
and the eggs were completely covered about 30 seconds later . 60 55 50 45 40
35 ...
... the female moved upstream of the bed and cut vigorously with her tail , thus
covering the eggs with gravel . Each spawning act took place in 10-15 seconds ,
and the eggs were completely covered about 30 seconds later . 60 55 50 45 40
35 ...
Pagina 466
Under such circumstances , the parr are of importance since their sperm , close to
the eggs , have a good chance of reaching them . The number of eggs produced
varies with the age and size of the females , as shown in Table 1. Menzies has ...
Under such circumstances , the parr are of importance since their sperm , close to
the eggs , have a good chance of reaching them . The number of eggs produced
varies with the age and size of the females , as shown in Table 1. Menzies has ...
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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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Altre edizioni - Visualizza tutto
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
abund Acad adults Amer American Anal fin apparently Atlantic base Bermuda body Brazil Bull Canada catch caudal Characters coast color Comm counts dark depth descr Description developed diameter distance Distinctive dorsal fin eggs equal Evermann examples extending FIGURE Fish Florida Fowler gill rakers Gulf half head Hildebrand Hist Island Jordan known Lake larger lateral least length less limb longer lower lower limb Maine mandible margin Material Maxillary middle mouth nearly North northern occur origin Panama pectoral Pectoral fin Pelvic fin pointed posterior pounds present probably Proc range rays reaching References refs reported River rows Salmon salt scales side silvery snout spawning species specimens streams Study synon taken teeth upper USNM usually ventral West western York young Zool
Informazioni bibliografiche
| Titolo | Fishes of the Western North Atlantic, Edizione 1,Parte 3 Fishes of the Western North Atlantic, John Tee-Van Edizione 1,Parte 3 di Fishes of the Western North Atlantic: Editorial Board: Editor-in-chief John Tee-Van [and Others], Sears Foundation for Marine Research Edizione 1 di Memoir (Sears Foundation for Marine Research), Sears Foundation for Marine Research |
| Curatore | John Tee-Van |
| Collaboratore | Sears Foundation for Marine Research |
| Editore | Sears Foundation for Marine Research, Yale Univ., 1948 |
| Provenienza dell'originale | Michigan State University |
| Digitalizzato | 3 dic 2019 |
| Esporta citazione | BiBTeX EndNote RefMan |