Many populations of elasmobranchs (sharks and rays) are experiencing severe declines
due to the high demand for shark fins in Asia, the activities of unregulated fisheries, and …

Knowing the number of individuals in a population is fundamental for the sustainable
management of exploited marine resources but estimating this parameter is often extremely …

Parthenogenesis is a natural form of asexual reproduction in which embryos develop in the
absence of fertilisation. Most commonly found in plants and invertebrate organisms, an …

In internally fertilizing species, sperm transfer is not always immediately followed by egg
fertilization, and female sperm storage (FSS) may occur. FSS is a phenomenon in which …

Contents In many vertebrates, females store sperm received at mating in specialized
reservoirs until fertilization. In some species, sperm are routinely stored for up to a decade …

Sawfishes (Family Pristidae) constitute one of the most threatened families of marine fish,
and substantial management efforts are required to stabilize and recover their populations …

Females of many vertebrate species have the capacity to store sperm within their
reproductive tracts for prolonged periods of time. Termed long-term sperm storage, this …

Background Female sperm storage (FSS), the maintenance of sperm inside the female
reproductive tract for an extended period of time, is pervasive among organisms with internal …

Post‐copulatory sexual selection, and sperm competition in particular, is a powerful
selective force shaping the evolution of sperm morphology. Although mounting evidence …

Chondrichthyes (sharks, rays, skates and chimaeras) are among the oldest extant predators
and are vital to top-down regulation of oceanic ecosystems. They are an ecologically diverse …