The Indo-Pacific lionfish species [Pterois volitans (Linnaeus, 1758) and P. miles (Bennett, 1828): Family Scorpaenidae] are the first nonnative marine fishes to establish in the Western North Atlantic and Caribbean Sea. Despite the continued documentation of its range expansion and highly publicized invasion (including public-driven removal efforts) there remains a paucity of basic information ...

Lionfish (Pterois volitans/miles) have invaded the majority of the Caribbean region within five years. As voracious predators of native fishes with a broad habitat distribution, lionfish are poised to cause an unprecedented disruption to coral reef diversity and function. Controls of lionfish densities within its native range are poorly understood, but they have been recorded in the stomachs of...

The South Caucasus (SC) region is recognized for its high biological diversity and various endemic animal taxa. area has experienced many fish introductions over the years, but overall information about non-native fishes in three SC countries, Armenia, Azerbaijan, Georgia did not exist. Although these countries belong to Kura River drainage, Caspian Sea basin (only western half of drains into B...

Parasites can play an important role in biological invasions. While introduced species often lose parasites from their native range, they can also accumulate novel parasites in their new range. The accumulation of parasites by introduced species likely varies spatially, and more parasites may shift to new hosts where parasite diversity is high. Considering that parasitism and disease are genera...

Restoration of altered or degraded habitats is often a key component in the conservation plan of native aquatic species, but introduced species may influence the response of the native community to restoration. Recent habitat restoration of the middle section of the Provo River in central Utah, USA, provided an opportunity to evaluate the effect of habitat restoration on the native fish communi...

The present study shows the distribution of alien fish species in tropical lakes middle Doce river basin, southeastern Brazil, obtained from a rapid assessment program. causes for their introductions were sportfishing improvement some specific and aquaculture studied basin. Presently, these have wide occurring 41 54 studied, representing an actual threat to regional native community. natural co...

Abstract Trophic cascades are important features of aquatic ecosystems, but much variation in their strength remains unexplained. Disturbance could restrict cascade occurrence by limiting predator distribution, and increase lowering defended herbivore abundance. These possibilities were investigated 20 New Zealand rivers varying both flooding disturbance (measured bed movement) presence non‐nat...