Fire offers both opportunities and risks for wildlife. Its impact will depend on the fire’s scale, how it alters key resources and how animals move. Understanding how wildlife respond to fire is crucial as climate change is predicted to increase wildfire risk and will likely result in more frequent prescribed fire to reduce wildfire risk. Invasive predators and inappropriate fire regimes in south-eastern Australia threaten the...

Genetic changes in the population structure of brown trout Salmo trutta in the eastern Pyrenees were monitored during the 1990s. Stocking with cultivated exogenous fish has resulted in introgressed populations where those with higher introgression coefficients also have the highest values of heterozygosity. Nevertheless, this increase of local diversity reflects a decrease of genetic differentiation between populations and los...

Genetic analyses of samples of the genus Coryphaena caught in the Canary Islands clearly revealed the existence of two different species, C. hippurus , Linnaeus 1758 and C. equiselis , Linnaeus 1758. Each species was fixed for different alleles at 11 out of 30 loci and a large genetic distance (0.814) was found between the two species. Previously only C. hippurus has been reported in the Canary Islands fishery. The two Corypha...

Bonito Sarda sarda samples collected in three areas from the Mediterranean Sea exhibited considerable genetic heterogeneity over all locations. This provided preliminary evidence for two different groups of bonito, one for the Ligurian and the Ionian Seas and the other for the Aegean Sea.

Evidence of different degrees of genetic interactions of exogenous hatchery fish with native populations was electrophoretically obtained from collections of brown trout from four heavily fished areas and eight adjacent protected and unfished areas in northeastern Spain. Although some degree of hybridization or introgression was detected in each collection based on fixed differences between hatchery and native fish at the LDH‐...