Publication Date:
2023-12-29
Description:
In Tasmania, Australia, the government's response to range-extending, barren-forming longspined sea urchin (Centrostephanus rodgersii) includes rebuilding of southern rock lobster (Jasus edwardsii) stocks to increase predation. But lobster preference for native species and continued barren expansion challenge the control efficacy. Therefore, this study aimed to determine the impact of lobster predation on C. rodgersii in different coastal habitats using a multi-method dietary analysis comprising 1) stomach contents analysis, 2) targeted DNA detection of prey species in faecal samples and 3) stable isotope analysis (d13C and d15N). The dataset contains diet information from 64 southern rock lobster (Jasus edwardsii) from five sites (four habitat types) in eastern Tasmania, Australia. Investigated prey species included: range-extending longspined sea urchins (Centrostephanus rodgersii), Shortspined sea urchin (Heliocidaris erythrogramma), periwinkle (Lunella undulata) and blacklip abalone (Haliotis rubra).
Keywords:
Cape Paul; CapePaul_2020; Carapace, length; Carbon and hydrogen and nitrogen and sulfur and oxygen (CHNSO) isotope elemental analyzer, Elementar, vario PYRO cube; coupled with Isotope ratio mass spectrometer (IRMS), Elementar, IsoPrime100; Centrostephanus rodgersii; Conservation status; Country; Crayfish Point; CrayfishPoint_2020; DATE/TIME; DNA barcoding; Elephant Rock; ElephantRock_2020; Event label; Fortescue; Fortescue_2020; Grazing impact; isotope analysis; Jasus edwardsii; Jasus edwardsii, stomach content; Jasus edwardsii, δ13C; Jasus edwardsii, δ15N; LATITUDE; Lobster trap, Manufacturer unknown, custom built [Pot dimension 80x80x45 cm; Mesh size 3x3 cm; top entrance circle 30 cm]; Location; LONGITUDE; North Bay; NorthBay_2020; Polymerase chain reaction (PCR); Prey, DNA present in faeces; range extension; Sample code/label; Sex; Size group description; Species; Species, unique identification (URI); spiny lobster; Stereo microscope, Leica, MZ12.5; coupled with Digital microscope camera, Leica, DFC450; stomach content analysis
Type:
Dataset
Format:
text/tab-separated-values, 1258 data points
