![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}
Did you mean: comets ?
-
Show
per page
- Transport of Polychlorinated Biphenyls from Adult Oyster Crassostrea virginica to Embryos and Larvae and Potential for Reproductive and Developmental Impairments
- "Describes a project studying transport of polychlorinated biphenyls from adult oyster crassotrea virginica to embryos and larvae."
- Transport of Polychlorinated Biphenyls from Adult Oyster Crassostrea virginica to Embryos and Larvae and Potential for Reproductive and Developmental Impairments
-
- PCB bioaccumulation in these compartments, and in gametes and larvae at different stages of development will also be ... and thus the reproductive processes, reproductive success in terms of gamete viability, number of eggs, mean egg size, percent larval survival ...
- 2003 Annual Report | Individual Level Indicators: Reproductive Function in Estuarine Fishes08-17-2004
-
- ... of exposure to low DO concentrations on gonadal recrudescence and gamete function... Gamete quantity in both males and females (fecundity) were significantly impaired ...
- 2000 Annual Report | Interaction Between Water Column Structure and Reproduction in Jellyfish Populations Of Mobile Bay (SGER)05-06-2003
-
- Second, the sheeting of gametes in only two dimensions overcomes a large problem associated with broadcast spawning of pelagic animals by keeping gametes in a predictable location ...
- Altered Sperm - Oocyte Interactions after Exposure to Reproductive Toxicants
- "Describes a project on altered sperm - oocyte interactions after exposure to reproductive toxicants."
- 1997 Annual Report | Altered Sperm-Oocyte Interactions after Exposure to Reproductive Toxicants
-
- ... toxicants and as a potential biomarker for toxicants affecting female gametes. Anticipated alterations in plasma membrane proteins interacting with the complementary gamete are expected to contribute to the mechanism of the toxicant ...
- Altered Sperm-Oocyte Interactions after Exposure to Reproductive Toxicants
-
- ... membrane proteins including those that specifically interact with the complementary gamete surface as potentially more sensitive markers of exposure to toxicants ... Plasma membrane proteins interacting with the complementary gamete are expected to contribute to the mechanism of the toxicant ...
- 2000 Annual Report | Evaluation of Endocrine-Distrupting Chemical Effects Across Multiple Levels of Biological Organization: Integration of Physiology Behavior and Population Dynamics In Fishes
-
- ... investigate the impacts of the EDCs on bio marker of gamete maturation, fertilization success and larval survival; (3) assess the parental transfer of the EDCs to gametes and offspring; (4) determine the effects of parental exposure to ... impair three critical stages of the reproductive cycle: gonadal growth, gamete maturation, and fertilization/early egg and larval survival.
- Page Title | About the Gulf Ecology Division | US EPA11-23-2009
-
- Gametes from the sea urchins Lytechinus variegatus and Arbacia punctulata from ... Using video tape recordings of living gametes and zygotes observed with differential-interference contrast microscopy, we noticed ...
- 2005 Annual Report | Individual Level Indicators: Reproductive Function in Estuarine Fishes05-23-2007
-
- Circulating levels of progestin, 20β-S, which regulates gamete maturation, did not change significantly in the exposed fish. However, there were significant decreases in gamete functions as assessed by measurements of sperm membrane progestin receptor ...