Heceta Bank is a large reef on the edge of the central Oregon continental shelf that supports a wide variety of commercial fisheries. Using the research submersible Delta, we studied fish abundances on Heceta Bank and the relationship between species composition of fish assemblages and bottom types. Cluster analysis indicated...
Submersible belt-transect surveys along a rocky bottom were combined with acoustic surveys of the water column to estimate depth distribution and density of fishes at Stonewall Bank, Oregon in the northeastern Pacific Ocean from September through October 1991. The objectives of the study were to determine the proportion of fish...
Rockfishes, Sebastes spp.. were the most numerous and speciose fishes seen during 16 submersible dives from 64 to 305 m depth in the vicinity of Heceta Bank off the coast of Oregon. Dense schools of juvenile rockfishes and large yellowtail rockfish, S. flavidus, were observed only over rocky, high relief...
The Pacific red lionfish has recently invaded Western Atlantic and Caribbean coral reefs, and may become one of the most ecologically harmful marine fish introductions to date. Lionfish possess a broad suite of traits that makes them particularly successful invaders and strong negative interactors with native fauna, including defensive venomous...
The Indo-Pacific Red Lionfish (P.volitans) has invaded coral reefs in the Western Atlantic Ocean and Caribbean. This abundant invader has the potential to negatively affect native species through both competition and predation. A native species that may be particularly vulnerable to this invasion is the Nassau grouper (E. striatus) because...
The Indo-Pacific Red Lionfish (P.volitans) has invaded coral reefs in the Western Atlantic Ocean and Caribbean. This abundant invader has the potential to negatively affect native species through both competition and predation. A native species that may be particularly vulnerable to this invasion is the Nassau grouper (E. striatus) because...
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grouper
Interactions Between Invasive Lionfish and Native Nassau Grouper
Wendel Raymond
Dr. MarkHixon