Download or read book Striking a Balance Between Melanosis and Weight Recovery in Western Rock Lobster Panulirus Cygnus written by Hannah Grace Williams and published by . This book was released on 2005-06-01 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamental studies aimed at obtaining a better understanding of the mechanisms of melanosis in western rock lobster and the impacts of processing on melanosis formation were undertaken to enable the western rock lobster industry to make informed decisions resulting in rationalization and/or formulation of processing protocols. Polyphenoloxidase (PPO) in the hemolymph of the lobster was the major causative factor in melanosis development after heating to 60-̕80d̕uring cooking. Evaluation of the impacts of heating and antibrowning agents on PPO activity was undertaken. The research showed that the internal temperature of lobsters during cooking must reach 90 ̕and maintained for over half an hour to prevent melanosis, but the lobsters suffered weight loss in the process.
Download or read book Fundamental Studies of Melanosis Development in Processed Western Rock Lobster Panulirus Cygnus written by Hannah Grace Williams and published by . This book was released on 2004 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: While more severe heating regimes may result in prevention of melanosis, the associated increase in costs due to increased energy input, longer processing time and possible weight loss, makes increased heating an unattractive option for the westem rock lobster industry. Since it was shown that antibrowning agents are effective in reducing the incidence and severity of melanosis occurrence in western rock lobster, further investigation of their use in lobster processing is required. Alternative cooking methods that produce a faster rate of heat input may also significantly improve the post harvest quality of lobsters by decreasing melanosis rates with shorter cook times. The application of these systems to western rock lobster processing requires investigation. Evaluation of the impact of these alternative processing methods on PPO activity and subsequent melanosis formation would assist the industry to determine the most effective processing method for prevention of melanosis in western rock lobster.
Download or read book Mortality Growth and Movement of the Western Rock Lobster Panulirus Cygnus written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Western Rock Lobster Panulirus Cygnus George written by and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synopsis of Biological Data on the Western Rock Lobster Panulirus Cygnus George 1962 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trial of the Use of Age Pigment for Age Determination of Western Rock Lobster Panulirus Cygnus written by Matt R. J. Sheehy and published by . This book was released on 1997 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Western Rock Lobster Panulirus Cygnusatural History written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Western Rock Lobster Panulirus Cygnus written by Howard Gray and published by . This book was released on 1990 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantifying and Controlling Hyper and Hyposaline induced Post harvest Leg Autotomy in the Western Rock Lobster Panulirus Cygnus written by Glen William Davidson and published by . This book was released on 2004 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Western Rock Lobster Panulirus Cygnus A natural history written by Howard Gray and published by . This book was released on 1992 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Cold Water Stunning on the Survival and Growth of Caught and Returned Western Rock Lobsters Pannlimus Cygnus written by Glen William Davidson and published by . This book was released on 2004 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishery Independent Survey of the Breeding Stock and Migration of the Western Rock Lobster Panulirus Cygnus written by and published by . This book was released on 1998 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Condition at Settlement of the Western Rock Lobster Panulirus Cygnus George written by Andrew John Limbourn and published by . This book was released on 2010 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: The condition at settlement of the western rock lobster pueruli presumably reflects both their energetic condition in reaching the near shore and subsequent recruitment into adult populations. In recruiting to the near shore the pueruli swim across the continental shelf where oceanographic conditions are complex and likely influence the success of recruitment. The results from the biochemical studies are interpreted in light of the oceanography off the coast of Western Australia. I investigated the nutritional condition of larval phyllosomata, post-larval puerulus and first instar post-pueruli juveniles of the spiny lobster, Panulirus cygnus, to determine energy use during the non-feeding transitional puerulus stage. Biochemical analyses of lipid, fatty acid (FA) and protein revealed that lipid, in particular phospholipids, is primarily used for energy during the nonfeeding puerulus stage. Monounsaturated FA showed the greatest decline with development, whereas the polyunsaturated FA showed a high degree of sparing, suggesting these FA are not used as a substrate for energy production. The knowledge gained on the biochemistry of energy use in P. cygnus was then used to investigate the spatial and temporal variability in the nutritional condition, in particular lipid condition, of puerulus collected at three near shore locations (Alkimos, Jurien Bay and Dongara) along the Western Australia coast, and one offshore location (Houtman Abrolhos Islands). The one offshore location was chosen as I hypothesised that arriving pueruli are likely to be in a better state of nutrition than those arriving at more coastal locations where the potential journey from offshore larval feeding grounds to the near shore is considerably greater. This element of my research showed lipid levels to be inversely related, generally, to shelf width but were variable, suggesting pueruli may travel complex trajectories to reach nearshore settlement. The lipid and FA composition of pueruli was also consistent with spatial and seasonal variation in Leeuwin Current and coastal productivity regimes.
Download or read book Diet and Trophic Role of Western Rock Lobsters Panulirus Cygnus George in Temperate Western Australian Deep coastal Ecosystems 35 60m written by Kris Ian Waddington and published by . This book was released on 2008 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Truncated abstract] Removal of consumers through fishing has been shown to influence ecosystem structure and function by changing the biomass and composition of organisms occupying lower trophic levels. The western rock lobster (Panurilus cygnus), an abundant consumer along the temperate west coast of Australia, forms the basis of Australia's largest single species fishery, with catches frequently exceeding 11000 tonnes annually. Despite their high abundance and commercial importance, the diet and trophic role of adult lobster populations in deep-coastal-ecosystems (35-60 m) remains unknown. An understanding of the diet and trophic role of lobsters in these ecosystems is a key component of the assessment of ecosystem effects of the western rock lobster fishery. This study uses gut content and stable isotope analyses to determine the diet and trophic role of lobsters in deep-coastal ecosystems. Dietary analysis indicated adult lobsters in deep-coastal ecosystems were primarily carnivorous with diet reflecting food available on the benthos. Gut content analyses indicate crabs (62 %) and amphipods/isopods (~10 %) are the most important lobster dietary sources. Stable isotope analysis indicates natural diet of lobsters in deep coastal ecosystems is dominated by amphipods/isopods (contributing up to ~50 %) and crabs (to ~75 %), with bivalves/gastropods, red algae and sponges of lesser importance (
Download or read book The Western Rock Lobster Panulirus Cygnus written by Howard Gray and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: History of the rock lobster fishing industry in Western Australia.
Download or read book The Western Rock Lobster Panulirus Cygnus George written by and published by . This book was released on 1979 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemoattraction and the Development of an Artificial Bait for the Western Rock Lobster Panulirus Cygnus written by Emilio Ghisalberti and published by . This book was released on 2004 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
