Investigation of Epizootic Shell Disease in American Lobsters (Homarus americanus) from Long Island Sound: I. Characterization of Associated Microbial Communities

2012 ◽  
Vol 31 (2) ◽  
pp. 473-484 ◽  
Author(s):  
Sheryl L. Bell ◽  
Bassem Allam ◽  
Anne McElroy ◽  
Alistair Dove ◽  
Gordon T. Taylor
Keyword(s):  
Microbial Communities ◽  
Long Island ◽  
Homarus Americanus ◽  
Long Island Sound ◽  
Shell Disease ◽  
Island Sound

Complex etiologies of emerging diseases in lobsters (Homarus americanus) from Long Island Sound

2013 ◽  
Vol 70 (11) ◽  
pp. 1576-1587 ◽  
Author(s):  
Jeffrey D. Shields
Keyword(s):  
Negative Impact ◽  
Long Island ◽  
Homarus Americanus ◽  
Long Island Sound ◽  
Emerging Diseases ◽  
Host Susceptibility ◽  
Shell Disease ◽  
Island Sound ◽  
Increased Susceptibility

Several diseases have recently emerged in lobsters (Homarus americanus) from Long Island Sound (LIS). Various stressors have been implicated as contributory factors, including increased bottom temperatures, extensive eutrophication with commensurate hypoxia, storm-induced thermal destratification, possible exposures to pesticides and metals, and fishery-induced stressors. Such stressors increase host susceptibility by weakening the host immune defenses and act to increase the transmission and severity of pathogens. The lobster mortality in western LIS in 1999 was linked to Neoparamoeba pemaquidensis, but a complex of stressors resulted in outright mortality from hypoxia or consequent immune suppression that increased susceptibility to the ameba. Similar stressors have been implicated in the etiology of epizootic shell disease and calcinosis. The role of environmental stressors has been hard to delineate, but recent declines in landings indicate that epizootic shell disease has had a negative impact on the lobster population in LIS. Calcinosis, blindness, and hepatopancreatitis are indicators of continued exposure to anthropogenic stressors, but their etiologies remain undetermined. More research is needed to understand emerging diseases, their complex etiologies, and their effects on the lobster population.

scholarly journals Idiopathic Lesions and Visual Deficits in the American Lobster (Homarus americanus) From Long Island Sound, NY

2009 ◽  
Vol 217 (1) ◽  
pp. 95-101 ◽  
Author(s):  
Christopher R. Magel ◽  
Jeffrey D. Shields ◽  
Richard W. Brill
Keyword(s):  
Long Island ◽  
Homarus Americanus ◽  
Long Island Sound ◽  
American Lobster ◽  
Visual Deficits ◽  
Island Sound

Changes in female lobster (Homarus americanus) size at maturity and implications for the lobster resource in Long Island Sound, Connecticut

2001 ◽  
Vol 52 (8) ◽  
pp. 1283 ◽  
Author(s):  
Donald F. Landers Jr ◽  
Milan Keser ◽  
Saul B. Saila
Keyword(s):  
Sexual Maturity ◽  
Egg Production ◽  
Long Island ◽  
Homarus Americanus ◽  
Long Island Sound ◽  
Female Size ◽  
Size At Maturity ◽  
Size At Sexual Maturity ◽  
Average Size ◽  
Island Sound

Population theory predicts that, under conditions of high age/size-specific mortality rates, individuals in highly exploited populations increase their fitness by decreasing size at sexual maturity, relative to less exploited populations. The benefit of early reproductive maturation is that individuals have a higher probability of surviving to maturity and contributing progeny to maintain the population. Empirical evidence, based on morphometric data from nearly 60 000 female lobsters collected since 1981, suggests that size at sexual maturity of female lobsters in Long Island Sound (USA) has recently decreased. Our findings were supported by decreases in average size and increases in abundance of egg-bearing females over the past two decades. Changes in female size at maturity and subsequent higher egg production may also help to explain the recent increase in lobster recruitment and landings. It is unclear whether these changes were caused by density-dependent factors related to the high exploitation of the species, by natural environmental factors (e.g. higher seawater temperatures), or a combination of the two.

scholarly journals A statistical model for monitoring shell disease in inshore lobster fisheries: A case study in Long Island Sound

PLoS ONE ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. e0172123 ◽  
Author(s):  
Kisei R. Tanaka ◽  
Samuel L. Belknap ◽  
Jared J. Homola ◽  
Yong Chen
Keyword(s):  
Statistical Model ◽  
Long Island ◽  
Long Island Sound ◽  
Shell Disease ◽  
Island Sound

Observations of Juvenile Lobsters,Homarus americanus, on a Rock-Reef in Long Island Sound

2011 ◽  
Vol 18 (1) ◽  
pp. 45-60 ◽  
Author(s):  
Renee Mercaldo-Allen ◽  
Ronald Goldberg ◽  
Paul E. Clark ◽  
Catherine A. Kuropat
Keyword(s):  
Long Island ◽  
Homarus Americanus ◽  
Long Island Sound ◽  
Island Sound
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