Partial migration, where only some individuals from a population migrate, has been widely
reported in a diverse range of animals. In this paper, what is known about the causes and …

Partial migration, where populations are composed of both migratory and resident
individuals, is extremely widespread across the animal kingdom. Researchers studying fish …

Appraisal of reproductive strategy and fecundity is necessary to evaluate the reproductive
potential of individual fish species. To estimate reproductive potential, one needs to consider …

Publisher Summary The presence of numerous seamounts in the world's oceans, especially
in the Pacific, has only become known to the scientific community in the last 50 years. This …

It is often assumed that iteroparous fishes spawn annually once reaching sexual maturity,
but this is not always the case. This paper reviews available information on skipped …

Overfishing has caused dramatic changes in structures of exploited populations as well as
ecosystems. In this article, we focus on fishing effects on age (size) and spatial structures of …

Atresia of ovarian follicles, that is the degenerative process of germ cells and their
associated somatic cells, is a complex process involving apoptosis, autophagy and …

The species that comprise class Chondrichthyes exhibit a wide diversity of reproductive
strategies, but they all have internal fertilization and a relatively small number of large …

Atlantic cod Gadus morhua were collected from Smith Sound, Newfoundland in January
1999. Visual examination of females (n= 150) and males (n= 126) revealed that some large …

Extinction is conceivable for some species, including aquarium-fish stocks of high value and
limited geographical range, but a biological basis exists for management of such small …