Selective improvement in responses to prey odors by the lobster,Homarus americanus, following feeding experience

1981 ◽  
Vol 7 (6) ◽  
pp. 1073-1080 ◽  
Author(s):  
Charles D. Derby ◽  
Jelle Atema
Keyword(s):  
Homarus Americanus ◽  
Feeding Experience ◽  
Prey Odors

Growth of juvenile American lobster Homarus americanus in a changing environment

2016 ◽  
Vol 557 ◽  
pp. 177-187 ◽  
Author(s):  
MD McMahan ◽  
DF Cowan ◽  
Y Chen ◽  
GD Sherwood ◽  
JH Grabowski
Keyword(s):  
Homarus Americanus ◽  
American Lobster ◽  
Changing Environment

Predicting bycatch hotspots based on suitable habitat derived from fishery-independent data

2020 ◽  
Vol 641 ◽  
pp. 159-175
Author(s):  
J Runnebaum ◽  
KR Tanaka ◽  
L Guan ◽  
J Cao ◽  
L O’Brien ◽  
...  
Keyword(s):  
Habitat Suitability ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Gulf Of Maine ◽  
Homarus Americanus ◽  
Management Tool ◽  
American Lobster ◽  
Suitable Habitat ◽  
Climate Conditions ◽  
Suitability Index

Bycatch remains a global problem in managing sustainable fisheries. A critical aspect of management is understanding the timing and spatial extent of bycatch. Fisheries management often relies on observed bycatch data, which are not always available due to a lack of reporting or observer coverage. Alternatively, analyzing the overlap in suitable habitat for the target and non-target species can provide a spatial management tool to understand where bycatch interactions are likely to occur. Potential bycatch hotspots based on suitable habitat were predicted for cusk Brosme brosme incidentally caught in the Gulf of Maine American lobster Homarus americanus fishery. Data from multiple fisheries-independent surveys were combined in a delta-generalized linear mixed model to generate spatially explicit density estimates for use in an independent habitat suitability index. The habitat suitability indices for American lobster and cusk were then compared to predict potential bycatch hotspot locations. Suitable habitat for American lobster has increased between 1980 and 2013 while suitable habitat for cusk decreased throughout most of the Gulf of Maine, except for Georges Basin and the Great South Channel. The proportion of overlap in suitable habitat varied interannually but decreased slightly in the spring and remained relatively stable in the fall over the time series. As Gulf of Maine temperatures continue to increase, the interactions between American lobster and cusk are predicted to decline as cusk habitat continues to constrict. This framework can contribute to fisheries managers’ understanding of changes in habitat overlap as climate conditions continue to change and alter where bycatch interactions could occur.

Aggression-Reducing Courtship Signals in the Lobster, Homarus americanus

1994 ◽  
Vol 187 (2) ◽  
pp. 275-276 ◽  
Author(s):  
P. Bushmann ◽  
J. Atema
Keyword(s):  
Homarus Americanus ◽  
Courtship Signals

Valorization of American lobster ( Homarus americanus ) cooking waters: preparation and characterization of a food ingredient

2021 ◽  
Author(s):  
Ariane Tremblay ◽  
Ronan Corcuff ◽  
Charles Goulet ◽  
Samuel B. Godefroy ◽  
Alain Doyen ◽  
...  
Keyword(s):  
Homarus Americanus ◽  
American Lobster ◽  
Food Ingredient

Environmental influences on fish and shellfish production in the Northwest Atlantic

1994 ◽  
Vol 2 (1) ◽  
pp. 16-32 ◽  
Author(s):  
K.H. Mann ◽  
K.F. Drinkwater
Keyword(s):  
Environmental Factors ◽  
Gadus Morhua ◽  
Cold Water ◽  
Climatic Factors ◽  
Homarus Americanus ◽  
Fishing Mortality ◽  
Poor Growth ◽  
Northwest Atlantic ◽  
Grand Banks ◽  
Fish And Shellfish

Evidence is reviewed, linking physical oceanographic processes in the marine environment to changes in fish and shellfish stocks in the Northwest Atlantic. A case history study of the cod (Gadus morhua) stock of the northern Grand Banks and Labrador Shelf indicates a long slow amelioration of the environment between about 1945 and 1965, followed by a deterioration in the period 1965–1992. The most important environmental factors for the cod stocks appear to have been salinity and temperature. The trends can be traced back to climatic factors involving the Icelandic Low and the Azores–Bermuda High. When the atmospheric pressure difference in winter tended to be high, there was a progressive increase in the area of sea ice off Labrador and in the volume of cold water at depth. These factors have been shown to affect temperature and salinity conditions on the Grand Banks in spring and summer and are associated with poor growth and recruitment in the cod stocks. A similar case study of lobster (Homarus americanus) stocks indicates that temperature and river discharge are important environmental correlates, but neither can be shown to fully account for the recent trends in the stocks. Evidence is reviewed to show that physical environmental processes also influence recruitment and distribution of stocks of haddock, capelin, and squid. Some of the problems with correlational analysis are also discussed. It is recognized that factors other than the environment are influencing the stocks. Fishing mortality (detailed consideration of which is not included in this review) has clearly been important. Interactions between environmental factors and fishing mortality are probably of major importance.Key words: ocean environment, fish production, recruitment, northern cod, American lobster.

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