Simultaneous enhancement of rock lobster fisheries and provision of puerulus for aquaculture

Restocking and stock enhancement of coastal fisheries: Potential, problems and progress

“…Restocking could also be achieved by aggregating and relocating adults for some species (Purcell, 2004;Bell et al, 2005). Stock enhancement may also be achieved by the collection, grow-out and release of spat; provision of settlement habitat where it is limiting; redistribution of settled juveniles from areas with high densities to places were abundances are low; and relocation of adults from areas where growth or survival is low to more productive parts of the coast (Bell et al, 2005;Uki, 2006;Gardner et al, 2006).…”

Marine Stock Enhancement, Restocking, and Sea Ranching in Australia: Future Directions and a Synthesis of Two Decades of Research and Development

“…The initial work presented at the first of these symposia involved research into the release of barramundi Lates calcarifer (Rimmer and Rus-100 sell, 1998;Russell et al, 2004) and general genetic marking techniques (Shaklee and Bentzen, 1998), brown tiger prawn Penaeus esculentus (Rothlisberg et al, 1999), and black bream Acanthopagrus butcheri (Lenanton et al, 1999). At subsequent symposia, advances in research have continued to be presented 105 on these species and new research on species, such as the southern rock lobster Jasus edwardsii, greenlip abalone Haliotis laevigata, and mulloway Agyrosomus japonicus (Loneragan et al, 2004Mills et al, 2004;Prince, 2004;Russell et al, 2004; Gardner et al, 2006;Gardner and Van Putten, 2008a,b;Potter et al, 2008;Taylor and Suthers, 2008;Taylor et al, 2013a,b). Despite the depth of research in marine stock enhancement, restocking, and sea ranching in Australia, larger-scale, continuing release programs of fisheries for enhancement and restocking, like those in other countries, such as Japan, China, the United States, Canada, and Norway, have not yet been implemented.…”

“…First, juvenile J. edwardsii were reseeded in the natural environment to compensate wild populations for the puerulus collected from the wild for aquaculture. Where the survival of puerulus and juveniles in culture is high and production costs low, modeling suggested that reseeding was a cost-effective option for both aquaculture and wild fisheries (Gardner et al, 2006). Second, the translocation of larger lobsters was examined as an approach to improve fishery production and yield.…”

Bias in lobster tethering experiments conducted for selecting low-predation release sites

“…In Tasmania, Australia, concerns that the harvest of Jasus edwardsii pueruli may harm wild lobster stocks are being addressed through reseeding (Gardner et al 2006). This involves on-growing harvested pueruli in tanks or seacages for1 yr, then releasing a proportion estimated to be equivalent to the number that would have survived naturally back to the area of capture.…”