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By Bruce Phillips

Lobsters are the most commercially very important teams of animals harvested and farmed in the course of the global. Bringing excessive costs out there and the desk, the consequences and yields of farmed species has visible persisted progress. below the Editorship of Bruce Phillips a global staff of authors offer exhaustive insurance of those attention-grabbing creatures, stretching from progress and improvement to administration and conservation, offering the reader with: * Key info for lobster farmers and harvesters * enterprise of the species through genera for ease of use * assurance of parasites, pathogens and commensally; their effect, detection and dimension

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Additional resources for Lobsters Biology Management Aquaculture and Fisheries

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In Homarus, larvae reared on a diet consisting of other crustaceans – either naturally occurring live zooplankton or commercially available brine shrimp – are more robust and grow faster than those reared on other foods (Lee & Wickins, 1992; Aiken & Waddy, 1995). , 1992). Readers are referred to Lee and Wickins (1992), Phillips et al. (1994a), Aiken and Waddy (1995) for a more comprehensive treatment of optimal stocking density of lobster larvae and postlarvae in culture. Little is known of the extent to which growth and development of lobster larvae in the wild may be subject to food limitation.

Temperature), bi are coefficients for the auxillary terms and all other terms are defined as before. Quadratic or higher order effects for premoult size and the auxillary variables can, in principle, be specified in this formulation by including additional terms in the model. For lobster taxa characterised by moulting throughout the year it is possible to determine the proportion moulting based on mark–recapture data as: pˆ i = TAL , TAL < IPi IPi where TAL is the time at large and IPi is the intermoult period.

Clearly, the quality of the analysis largely depends on the validity of these assumptions. MIX treats a single length distribution while the other programs permit evaluation of a time sequence of length composition estimates (Fig. 3). Prior to conducting an analysis of size-frequency distributions, it is important to be wary of how sensitive the distributions can be to the sampling method; the investigator should be especially cognisant of the size-selectivity of the sampling gear and how it might bias any representation of the size distribution.

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