Mechanisms for migration of anadromous herring: an ecological basis for effective conservation. Population characteristics and seasonal migrations of leatherback sea turtles at high latitudes. Conservation Biology. For permissions, please e-mail: journals.
Sexual differentiation humans Development of the reproductive system gonads Mesonephric duct Paramesonephric duct.
Sex Chromosomes and Sex-Linked Genes. Download as PDF Printable version. Twombly and S. The results of the maturity status determined by two different techniques, i.
East Asia and Oceania. Each square carries a letter. This discovery made measurement of lifetime reproductive success for a vertebrate species with TSD more feasible. The powers of the Minister and the Department of Education are defined by the Ministerial regulations and constrained by the Governor-In-Council regulations.
New issue alert. By agreement with the publisher, this book is accessible by the search feature, but cannot be browsed. However, there is no evidence thus far that sex ratio is manipulated by parental care. Of thesingular responses to the census question concerning "mother tongue" the most-commonly reported languages were:.
Maturity, fecundity and reproductive potential of the European lobster Homarus gammarus in Ireland. Females in postmolt and intermolt with well-developed cement glands stages 2 to 4 , indicating imminent egg extrusion during the current spawning season, were considered as mature.
Although an accurate comparison is difficult because of the different techniques used to determine maturity, female lobsters from the sGSL seem to reach maturity at smaller sizes compared to females from other areas, and the difference could be due to high summer water temperature.
Small berried females in the sGSL could also skip both molting and spawning for a year during their reproductive cycle.