Zobrazeno 1 - 9
of 9
pro vyhledávání: '"J V, Helvik"'
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 53:2524-2532
L'oeil et la retine de fletans (Hippoglossus hippoglossus), des premiers stades de la larve vesiculee jusqu'a la metamorphose, ont ete examines apres dissection au microscope optique et, pour certains stades, au microscope electronique a transmission
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96d11a989f6960d63ee987b26e203abd
https://doi.org/10.1139/f96-205
https://doi.org/10.1139/f96-205
Publikováno v:
Journal of neuroendocrinology. 23(8)
Salmon parr-smolt transformation (smoltification) is a mid-life transitional stage between life in freshwater and seawater that entails a wide range of neural, endocrine and physiological modifications. In salmon, the neuroendocrine corticotropin-rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::eae46da9301df83de2a94df5a2f4ed7d
https://pubmed.ncbi.nlm.nih.gov/21592238
https://pubmed.ncbi.nlm.nih.gov/21592238
Autor:
B. T. Walther, J. V. Helvik
Publikováno v:
Marine Biology. 116:39-45
The influence of some environmental parameters in the regulation of hatching of halibut (Hippoglossus hippoglossus) embryos is reported. The progress of hatching was observed when light, oxygen and turbulence were varied. Environmental parameters inf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d75c410da76403ea173185fecb493a69
https://doi.org/10.1007/bf00350729
https://doi.org/10.1007/bf00350729
Publikováno v:
Brain, behavior and evolution. 56(6)
In this study we have investigated the pattern of morphogenesis and axogenesis in the turbot brain during embryonic and early larval stages with immunohistochemistry using an antibody against acetylated tubulin. The first immunoreactive elements were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a508285425486405eccf5a25586d9bce
https://pubmed.ncbi.nlm.nih.gov/11326135
https://pubmed.ncbi.nlm.nih.gov/11326135
Publikováno v:
The International journal of developmental biology. 41(4)
The timing of hatching in the Atlantic halibut (Hippoglossus hippoglossus) has been suggested to be regulated by environmental light conditions. However, the photosensory organ that perceives the triggering light has not been identified. In the prese
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::59292f74c37afabad8fdf426a748413b
https://pubmed.ncbi.nlm.nih.gov/9303347
https://pubmed.ncbi.nlm.nih.gov/9303347
Autor:
J V, Helvik, B T, Walther
Publikováno v:
The International journal of developmental biology. 37(3)
Halibut (Hippoglossus hippoglossus) eggs raised in darkness hatched between days 14.5 and 16 after fertilization. Eggs incubated in white light (3.2 microE/sr1/m2) remained unhatched, so that time of intra ovo development could be doubled. Photo-arre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f7946a084e18d84075904c9a5ba56e39
https://pubmed.ncbi.nlm.nih.gov/8292543
https://pubmed.ncbi.nlm.nih.gov/8292543
Publikováno v:
The International journal of developmental biology. 36(2)
Using Atlantic cod (Gadus morhua) as a model organism, the aim of this report was to delineate whether teleostean eggshell zona radiata proteins have their origin, i.e., site of synthesis, in gonadal or somatic tissues. Estradiol-17 beta was administ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::e2b1f84f6e2bb2f3d307994ee273a1a0
https://pubmed.ncbi.nlm.nih.gov/1525012
https://pubmed.ncbi.nlm.nih.gov/1525012
Publikováno v:
The Journal of endocrinology. 131(2)
During growth of the ovarian follicle, the teleost oocyte becomes surrounded by an acellular coat, the vitelline envelope. The nature, origin and number of the vitelline envelope proteins in fish appear to vary with species. In this work, polyclonal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35f224e62a929a5d0f0d077fb85a082f
https://pubmed.ncbi.nlm.nih.gov/1744570
https://pubmed.ncbi.nlm.nih.gov/1744570
Publikováno v:
The International journal of developmental biology. 35(1)
In general fish larvae emerge from the protective egg after secreting a hatching enzyme (HE) from diffusely located hatching gland cells (HGCs). This proteolytic enzyme is distributed over the entire inner part of the eggshell (zona radiata). In a ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::2d6d3e418dbce115e91b81efbc0b65c2
https://pubmed.ncbi.nlm.nih.gov/1868003
https://pubmed.ncbi.nlm.nih.gov/1868003