U.S. Fish and Wildlife ServiceUS & Service; North Carolina Resources Commission; National Park Commission Pittman-Robertson [W-66-R-1]; US Endangered Species Recovery Implementation [F11AC01265]; Service Southern Appalachian Cooperative Ecosystem Study Unit [P12AC13175]; West Virginia Division of Highways [T699-FLY/SQ-1.00]; Grants-in-Aid for Scientific ResearchMinistry Education, Culture, Spor...

Threatened fish populations worldwide are relying on stock supplementation by hatchery-reared fish. Although stocking with non-native may lead to hybridization, thereby disrupting local adaptations, it could also improve the adaptive potential of small increasing variability in essential behavioral traits. In this study, we crossbred critically endangered Finnish landlocked salmon a geographica...

Fundulus lima inhabits river drainage systems and is threatened after the introduction of cichlids in the area. To support conservation programs, the spatial and temporal variation of the diet composition of this endangered killifish, was determined in two oasis systems of Baja California Sur, Mexico (San Ignacio and La Purisima river drainages), during rainy and dry seasons. F. lima was captur...

The analysis of apex predator diet has the ability to deliver valuable insights into ecosystem health, and the potential impacts a predator might have on commercially relevant species. The Australian sea lion (Neophoca cinerea) is an endemic apex predator and one of the world's most endangered pinnipeds. Given that prey availability is vital to the survival of top predators, this study set out ...

The Southern Resident killer whale population (Orcinus orca) was listed as endangered in 2005 and shows little sign of recovery. These fish eating whales feed primarily on endangered Chinook salmon. Population growth is constrained by low offspring production for the number of reproductive females in the population. Lack of prey, increased toxins and vessel disturbance have been listed as poten...

Background: Fish act as an affordable source of animal protein as well as the source for many other substances of nutraceutical importance. Under rapid biomagnification of pollutants, low tolerance to climatic stressors increase susceptibility of various fish to large-scale mortality. Therefore, understanding the magnitude and type of their responses to individual or multiple climatic factors/s...

this checklist aims to reviews and summarize the results of the systematic and zoogeographical research on the iranian inland ichthyofauna that has been carried out for more than 200 years. since the work of j.j. heckel (1846-1849), the number of valid species has increased significantly and the systematic status of many of the species has changed, and reorganization and updating of the publish...

Two species of fruit bats are known from Guam in the southern Mariana Islands. Pteropus mariannus mariannus has declined greatly in abundance since the early 1900s. Its numbers decreased from an estimated 3,000 animals in 1958 to fewer than 50 individuals in 1978. However, by 1982, the population of this species increased to about 850 to 1,000 bats, probably through immigration of fruit bats to...