Journal of Shellfish Research articles from October 2005

Journal of Shellfish Research archives from October 2005

Preface.(american lobster)(Editorial)
October 1, 2005... In the fall of 1999, American lobsters in western Long Island Sound (LIS) began dying at an alarming rate due to undetermined causes. By late 1999, the Governors of Connecticut and New York had requested disaster assistance from (then) U.S....

The 1999 Long Island Sound Lobster mortality event: findings of the comprehensive research initiative.
October 1, 2005... ABSTRACT In 1999, the Long Island Sound lobster fishery suffered a significant mortality event, following 2 years of smaller, more localized, die-offs. A national research initiative investigating the potential cause(s) of the mortalities was...

In vitro activation of hemocytes from the American lobster, Homarus americanus, as measured by production of reactive oxygen species.
October 1, 2005... ABSTRACT Hemocytes from the American lobster (Homarus americanus) were exposed to several receptor-independent and -dependent putative NADPH oxidase stimulators. This stimulation should result in the generation of cytotoxic reactive oxygen...

Development of assays to evaluate cellular immune functions in the American lobster (Homarus americanus).
October 1, 2005... ABSTRACT A significant mortality of the American lobster (Homarus americanus) in western Long Island Sound in 1999 seriously impacted the harvest of this species. Whereas the exact cause or causes of the mortality are still not precisely known,...

A method for assessing removal of foreign particles from the blood by fixed phagocytes of the American lobster, Homarus americanus.
October 1, 2005... ABSTRACT The fixed phagocytes are noncirculating cells in the digestive gland (hepatopancreas) of the American lobster (Homarus americanus) and other decapod crustaceans. They are attached to the outer walls of the terminal hepatic arterioles...

Nuclear small-subunit ribosomal RNA gene-based characterization, molecular phylogeny and PCR detection of the neoparamoeba from Western Long Island Sound lobster.
October 1, 2005... ABSTRACT Western Long Island Sound (LIS) lobsters collected by trawl surveys, lobstermen and coastal residents during 2000 to 2002 were identified histologically as infected with a parasome-containing amoeba. Primers to conserved SSU rRNA...

Isolation of mitochondrial cytochrome B gene and development of a real-time quantitative PCR assay for detecting Neoparamoeba aestuarina.
October 1, 2005... ABSTRACT Some Neoparamoeba strains are pathogens of fish and invertebrates and were implicated in lobster mortality in Long Island Sound in recent years. To better understand the dynamics of these pathogens and their potential linkages to the...

Culture-dependent characterization of the microbial community associated with epizootic shell disease lesions in American lobster, Homarus americanus.
October 1, 2005... ABSTRACT Epizootic shell disease in the American lobster is an important factor affecting lobster fisheries in and around the Long Island Sound. It is a strictly dermal disease, because no correlation was observed between occurrence of...

A description of the pathology of epizootic shell disease in the American lobster, Homarus americanus, H. Milne Edwards 1837.
October 1, 2005... ABSTRACT Epizootic shell disease is responsible for great economic losses in the commercial lobster fishing industry in the northeastern United States. Histologic examination of the carapace from affected American lobsters showed the disease is...

Response of the American lobster to the stress of shell disease.
October 1, 2005... ABSTRACT Shell disease is a problem affecting lobsters in eastern Long Island Sound causing disfiguration of the shell, decreasing the lobsters' value, and whereas mild and medium levels of the disease are not lethal, ultimately, severe cases...

A prolonged thermal stress experiment on the American lobster, Homarus americanus.
October 1, 2005... ABSTRACT Two groups of lobsters were maintained for 31 days at temperatures environmentally realistic for Long island Sound to investigate the effects of prolonged thermal stress on the physiology of lobsters. One group was held at...

A method for exposing lobsters to multiple simulated habitat biogeochemicals and temperatures.
October 1, 2005... ABSTRACT A flow-through experimental system was designed to simulate habitat conditions encountered by American lobsters (Homarus americanus) during an eutrophication-driven mass mortality in the Long Island Sound during 1999. Seawater for the...

Effects of environmental stressors on disease susceptibility in American lobsters: a controlled laboratory study.
October 1, 2005... ABSTRACT The objective of this work is to determine whether increased (but environmentally realistic) temperature, hypoxia, sulfide and ammonium, alone or in combination, can increase susceptibility of lobsters to microbial infection. Lobsters...

Resmethrin immunotoxicity and endocrine disrupting effects in the American lobster (Homarus americanus) upon experimental exposure.
October 1, 2005... ABSTRACT A lobster die-off significantly reduced the 1999 fall landings in western Long Island Sound. The die-off corresponded in time with the application of pesticides for the control of mosquitoes that carried West Nile virus, a new emerging...

Metabolic effects of acute exposure to methoprene in the American lobster, Homarus americanus.
October 1, 2005... ABSTRACT Methoprene was a constituent of the pesticide cocktail applied to the Western Long Island Sound (WLIS) watershed area during the summer of 1999. Subsequently, the seasonal lobster catches from the WLIS have decreased dramatically. We...

Acute toxicity of resmethrin, malathion and methoprene to larval and juvenile American lobsters (Homarus americanus) and analysis of pesticide levels in surface waters after Scourge[TM], Anvil[TM] and Altosid[TM] application.
October 1, 2005... ABSTRACT Acute toxicity and immune response, combined with temperature stress effects, were evaluated in larval and juvenile American lobsters (Homarus americanus) exposed to malathion, resmethrin and methoprene. These pesticides were used to...

Seasonal variations in sediment and bottom water chemistry of western Long Island Sound: implications for lobster mortality.
October 1, 2005... ABSTRACT In the fall of 1999 the lobster population of western Long Island Sound (WLIS) experienced a massive die-off (LoBue et al. 2003). In fact, the lobster populations in WLIS still have not recovered as of this writing (Benway et al....

Manganese concentration in lobster (Homarus americanus) gills as an index of exposure to reducing conditions in western Long Island Sound.
October 1, 2005... ABSTRACT We examined the accumulation of manganese (Mn) in gill tissues of chemically naive lobsters held in situ at six sites in Long Island Sound (LIS) for up to six weeks to evaluate the possible contribution of eutrophication-driven habitat...

Effect of habitat biogeochemicals on survival of lobsters (Homarus americanus).
October 1, 2005... ABSTRACT Lobsters from eastern Long Island Sound (LIS) were exposed to laboratory conditions designed to simulate the habitat in western LIS during the 1999 mass mortality. Elsewhere (Robohm et al. 2005) we have shown that hypoxia and...

A perspective on bottom water temperature anomalies in Long Island Sound during the 1999 lobster mortality event.
October 1, 2005... ABSTRACT Analyses of time series data for bottom or near bottom temperatures for 50 stations distributed throughout Long Island Sound reveal distinctive features of the bottom water temperature history during the lobster mortality event of...

The contribution of egg-bearing female American lobster (Homarus americanus) populations to lobster larvae collected in Long Island Sound by comparison of microsatellite allele frequencies.
October 1, 2005... ABSTRACT In 1999, the massive die-off of the American lobster (Homarus americanus) populations in western Long Island Sound (LIS) caused complete collapse of the commercial lobster fishery. Reestablishment of a commercial fishery in western LIS...

The genetic stock structure of the American lobster (Homarus americanus) in Long Island Sound and the Hudson Canyon.
October 1, 2005... ABSTRACT The genetic population structure of the American lobster (Homarus americanus) was examined in populations collected in Long Island Sound (LIS) and the Hudson Canyon of the Northeastern United States with recently developed...

Long-term population trends in American lobster (Homarus americanus) and their relation to temperature in Long Island Sound.
October 1, 2005... ABSTRACT Existing long-term monitoring data and studies initiated in response to the 1999 lobster die-off in Long Island Sound were examined to determine long-term trends that might clarify causes of the die-off. Data examined included a 28-y...

Application of water quality modeling technology to investigate the mortality of lobsters (Homarus americanus) in western Long Island Sound during the summer of 1999.
October 1, 2005... ABSTRACT A phased approach was taken for applying previously developed numerical models to address quantitatively whether application of 4 pesticides (i.e., methoprene, malathion, resmetbrin and sumithrin) to combat mosquitoes carrying West...

Simulations of transient pesticide concentrations in Long Island Sound for late summer 1999 with a high resolution coastal circulation model.
October 1, 2005... ABSTRACT Results for hindcast simulations are presented for the transient concentration distributions in Long Island Sound for the pesticides malathion, resmethrin and sumithrin for the period August 1, 1999 through October 19, 1999. The high...