We describe juvenile migration tactics for spring/summer-run populations of Chinook Salmon Oncorhynchus tshawytscha that spawn in tributaries of the Fraser River, Canada. We trapped juveniles migrating from tributaries, and sampled juvenile Chinook salmon rearing in the Fraser River. In four tributaries, we found two dominant life history types within each population: a natal-stream-rearing variant in which juveniles spend a year in their natal stream before migrating….Read more with open access

The Striped Bass Morone saxatilis is an anadromous teleost with a native range extending north from the Gulf of Mexico into Canadian waters. Far-ranging coastal migrations support one of the most popular recreational fisheries in the United States. Identifying the underlying population genetic structure of the spawning populations and the genetic markers capable of differentiating among them advances our understanding of these economically and ecologically important fish and enables more targeted management to occur….Read more with open access

Species-specific hematological reference values are essential for diagnosis and treatment of disease and maintaining overall health of animals. This information is lacking for many species of elasmobranchs maintained in zoos and aquaria, thus reducing the effectiveness of care for these animals. Descriptive statistics and reference intervals were calculated for hematocrit and complete blood cell counts, biochemistry and protein electrophoresis parameters, trace minerals, vitamins, heavy metals, reproductive hormones, and fatty acids…Read more with open access