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Factors Affecting Post-Capture Survivability Of Lobster Homarus Americanus, D. Basti, Ian Bricknell, K. Hoyt, E. S. Chang, W. Halteman, D. Bouchard
Factors Affecting Post-Capture Survivability Of Lobster Homarus Americanus, D. Basti, Ian Bricknell, K. Hoyt, E. S. Chang, W. Halteman, D. Bouchard
Marine Sciences Faculty Scholarship
Technological advances in gear and fishing practices have driven the global expansion of the American lobster live seafood market. These changes have had a positive effect on the lobster industry by increasing capture efficiency. However, it is unknown what effect these improved methods will have on the post-capture fitness and survival of lobsters. This project utilized a repeated measures design to compare the physiological changes that occur in lobsters over time as the result of differences in depth, hauling rate, and storage methodology. The results indicate that lobsters destined for long distance transport or temporary storage in pounds undergo physiological …
Estimating Spatial Distribution Of American Lobster Homarus Americanus Using Habitat Variables, J. H. Chang, Yong Chen, D. Holland, J. Grabowski
Estimating Spatial Distribution Of American Lobster Homarus Americanus Using Habitat Variables, J. H. Chang, Yong Chen, D. Holland, J. Grabowski
Marine Sciences Faculty Scholarship
The spatial distribution of the American lobster Homarus americanus is influenced by many factors, which are often difficult to quantify. We implemented a modeling approach for quantifying season-, size-, and sex-specific lobster spatial distribution in the Gulf of Maine with respect to environmental and spatial variables including bottom temperature, bottom salinity, latitude, longitude, depth, distance offshore, and 2 substratum features. Lobster distribution was strongly associated with temperature and depth, and differed seasonally by sex. In offshore waters in the fall, females were dominant at higher latitudes and males at lower latitudes. This segregation was not apparent in the spring although …
Different Early Post-Settlement Strategies Between American Lobsters Homarus Americanus And Rock Crabs Cancer Irroratus In The Gulf Of Maine, A. T. Palma, Richard Wahle, Robert Steneck
Different Early Post-Settlement Strategies Between American Lobsters Homarus Americanus And Rock Crabs Cancer Irroratus In The Gulf Of Maine, A. T. Palma, Richard Wahle, Robert Steneck
Marine Sciences Faculty Scholarship
The abundance of many invertebrates with planktonic larval stages can be determined shortly after they reach the benthos. In this study, we quantified patterns of abundance and habitat utilization of early benthic phases of the American lobster Homarus americanus and the rock crab Cancer irroratus. These 2 decapods are among the most common and abundant macroinvertebrates in coastal zones of the Gulf of Maine, with similar densities of larger individuals. Settlement and early postsettlement survival indicate that lobsters are highly substrate-specific early in life, settling predominantly in cobble beds. Crabs appear to be less selective, setting both in cobble and …