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Full-Text Articles in Life Sciences
Feeding Ecology Of The Invasive Lionfish (Pterois Spp.) And Comparison With Two Native Species: Schoolmaster Lutjanus Apodus (Walbaum, 1792) And Graysby Cephalopholis Cruentata (Lacepède, 1802), Jesse J. Secord
HCNSO Student Theses and Dissertations
Predator satiation and prey-size preference were determined for locally caught lionfish, schoolmaster, and graysby, all co-occurring predatory fishes in the Florida coral reef ecosystem. Individuals were evaluated by exposing them to wild-caught killifish over a gradient of four size classes (20 mm to 60 mm, in 10 mm increments). Preference trials extended over a 2 hr time period and were filmed to determine the order in which each prey item was consumed. Satiation was evaluated by exposing the predators to an equal number of excess prey items for 24 hrs and evaluating consumed prey weight. Lionfish and schoolmaster showed a …
Thermal Preferences And Critical Temperature Regimes Of The Western North Atlantic Invasive Lionfish Complex (Pterois Spp.), Benjamin Barker
Thermal Preferences And Critical Temperature Regimes Of The Western North Atlantic Invasive Lionfish Complex (Pterois Spp.), Benjamin Barker
HCNSO Student Theses and Dissertations
Temperature preference, behavioral tolerance, and physiological tolerances were determined for locally captured, invasive juvenile lionfish at four different acclimation temperatures (13°C, 20°C, 25 °C and 32°C). Temperature preferences and avoidance temperatures were evaluated using an automated shuttlebox system that presents subject-driven temperature stimuli to subjects, who control the temperature with their movement throughout the tank for 12 hours. Subjects are tracked by a computer system, with data output approximately every second. Acute preference was calculated from the archived data as the mean temperature that the fish occupied during the first two hours of dynamic experimentation. Acute preference measurements were used …
Computer Modeling The Incursion Patterns Of Marine Invasive Species, Matthew W. Johnston
Computer Modeling The Incursion Patterns Of Marine Invasive Species, Matthew W. Johnston
HCNSO Student Theses and Dissertations
Abstract Not Available.
Habitat-Specific Density And Diet Of Rapidly Expanding Invasive Red Lionfish, Pterois Volitans,, Populations In The Northern Gulf Of Mexico, Kristen A. Dahl, William F. Patterson Iii
Habitat-Specific Density And Diet Of Rapidly Expanding Invasive Red Lionfish, Pterois Volitans,, Populations In The Northern Gulf Of Mexico, Kristen A. Dahl, William F. Patterson Iii
C-IMAGE Publications
Invasive Indo-Pacific red lionfish, Pterois volitans, were first reported in the northern Gulf of Mexico (nGOM) in summer 2010. To examine potential impacts on native reef fish communities, lionfish density and size distributions were estimated from fall 2010 to fall 2013 with a remotely operated vehicle at natural (n = 16) and artificial (n = 22) reef sites. Lionfish (n = 934) also were sampled via spearfishing to examine effects of habitat type, season, and fish size on their diet and trophic ecology. There was an exponential increase in lionfish density at both natural and artificial reefs over the study …
Distribution And Length Frequency Of Invasive Lionfish (Pterois Sp.) In The Northern Gulf Of Mexico, Alexander Q. Fogg, Eric R. Hoffmayer, William B. Driggers Iii, Matthew D. Campbell, Gilmore J. Pellegrin, William Stein
Distribution And Length Frequency Of Invasive Lionfish (Pterois Sp.) In The Northern Gulf Of Mexico, Alexander Q. Fogg, Eric R. Hoffmayer, William B. Driggers Iii, Matthew D. Campbell, Gilmore J. Pellegrin, William Stein
Gulf and Caribbean Research
The purpose of this communication is to document continued spatial expansion of lionfish farther west into the northern Gulf of Mexico. Furthermore, we provide the first length— mass relationships and length frequency information for lionfishes captured within the northern GOM based on data collected as part of a broader on—going study of lionfish life history in this region.