Article
Multidisciplinary Sciences
Alf Ring Kleiven, Sigurd Heiberg Espeland, Stian Stiansen, Kotaro Ono, Fabian Zimmermann, Esben Moland Olsen
Summary: Fishery-dependent data are crucial for management decisions, but technological creep can lead to biased inferences. This study examines the impact of trap improvement on a European lobster fishery, revealing a significant decline in lobster abundance over nine decades. The findings highlight the importance of standardization, including technological development, when using commercial data for monitoring and managing data-limited fisheries.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Jennifer M. Polinski, Aleksey V. Zimin, K. Fraser Clark, Andrea B. Kohn, Norah Sadowski, Winston Timp, Andrey Ptitsyn, Prarthana Khanna, Daria Y. Romanova, Peter Williams, Spencer J. Greenwood, Leonid L. Moroz, David R. Walt, Andrea G. Bodnar
Summary: The American lobster plays a crucial role in marine ecosystems and supports commercial fishing. It serves as a valuable model for studying neural networks and olfaction, with complex chemosensory and defense mechanisms contributing to its longevity and ecological success in the marine environment.
Article
Marine & Freshwater Biology
Benjamin C. Gutzler, Winsor H. Watson
Summary: This study developed a data logger called C-HAT to track the behavior of American lobsters in their natural habitat. The C-HAT recorded the lobsters' triaxial acceleration, compass heading, and heart rate. The results showed that lobster heart rates were around 60 beats per minute at rest and increased to around 80 beats per minute during activity. The study also found that at least a third of their movement was in response to external stimuli. Additionally, a movement index based on acceleration was correlated with the distance traveled by the lobsters.
Article
Environmental Sciences
Ella A. Maltby, Ken D. Oakes, Tony R. Walker, Jim Williams, Russell C. Wyeth
Summary: A baseline survey was conducted in 2018 to assess the contamination levels in American lobsters in the Northumberland Strait, Canada. The study found that most contaminants were below the set guidelines, except for elevated levels of arsenic in all age classes. Mercury and methylmercury exceeded guidelines in some cases, but there was no consistent pattern of contaminant accumulation. This study will serve as a reference point for future monitoring after the remediation of Boat Harbour.
MARINE POLLUTION BULLETIN
(2023)
Article
Fisheries
Marie-France Lavoie, Emilie Simard, Annick Drouin, Philippe Archambault, Luc A. Comeau, Christopher W. McKindsey
Summary: This study used acoustic telemetry to evaluate the influence of longline mussel farms on lobster movement behavior. The results showed that the time lobsters spent within a site, distance travelled, and walking speed did not differ between the farm and reference sites. The tagging method had an impact on walking speed during the first 24 hours, but did not affect the residence time and the distance travelled by the lobsters.
AQUACULTURE ENVIRONMENT INTERACTIONS
(2022)
Article
Neurosciences
Emily R. Oleisky, Meredith E. Stanhope, J. Joe Hull, Patsy S. Dickinson
Summary: This study investigates the role of post-translational modifications (PTMs) in diversifying peptide structure and enabling flexibility within the cardiac neuromuscular system of the American lobster. The researchers examine the effects of different isoforms of myosuppressin on various components of the system and find that amidation plays a critical role in the peptide's ability to exert its effects. The data suggest that PTMs are important for peptide action and can result in significant changes at different levels of the system.
JOURNAL OF NEUROPHYSIOLOGY
(2022)
Article
Ecology
Tracy L. Pugh, Robert P. Glenn, Winsor H. Watson
Summary: The Southern New England stock of American lobster is severely depleted, and the reasons could be increased mortality of larvae or juveniles, decreased larval production, or both. The study examined the mating success of female lobsters in Buzzards Bay and found that contrary to the initial hypothesis, mating success was higher in areas with a female-skewed sex ratio. Two alternative explanations for this spatial pattern are the immaturity or newly matured state of females in the inner Bay, and the low density of lobsters leading to mate-finding difficulties for mature females.
MARINE ECOLOGY PROGRESS SERIES
(2023)
Article
Engineering, Marine
Camille Berthod, Marie-Helene Benard-Deraspe, Jean-Francois Laplante, Nicolas Lemaire, Madeleine Nadeau, Nicolas Toupoint, Gaelle Triffault-Bouchet, Richard Saint-Louis
Summary: Research shows that lysosomal stability and ethoxyresorufin O-deethylase (EROD) induction exhibit higher sensitivity in contaminated lobsters. Increasing the temperature did not shorten the recovery period, and lobsters exposed to dilbit experienced greater cellular impacts compared to those exposed to marine diesel. Furthermore, marine diesel exposure appeared to have more ongoing issues for the lobster fishery.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Fisheries
Flynn Casey, James H. H. Churchill, Geoffrey W. W. Cowles, Tracy L. L. Pugh, Richard A. A. Wahle, Kevin D. E. Stokesbury, Robert P. P. Glenn
Summary: During the 1990s, the lobster population off southeastern Massachusetts (SEMA) declined due to significant warming of the coastal waters. Rising ocean temperatures adversely impacted the survival and distribution of lobsters, causing a reduction in larval delivery to suitable habitat and increasing thermal stress on settled lobsters. This study emphasizes the implications of warming coastal waters on lobster population connectivity and provides insights on the mechanism by which climate change affects marine species recruitment.
FISHERIES OCEANOGRAPHY
(2023)
Article
Biodiversity Conservation
Pierre De Wit, Linda Svanberg, Isabel Casties, Susanne P. Eriksson, Kristina Sundell, Carl Andre
Summary: This study evaluated the use of an SNP DNA marker panel for inferring parentage in a European lobster restocking effort. The panel was able to accurately assign larvae to their mothers and reconstruct paternal genotypes. Most larval clutches were found to be full siblings, with a few clutches having multiple fathers.
CONSERVATION GENETICS RESOURCES
(2022)
