Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"American lobster"”.
-
Biochemical changes associated with embryonic and larval development in the American lobster Homarus americanus Milne Edwards
… analysis was carried out on developing Homarus americanus Milne Edwards larvae and eggs. Lipids were further analyzed for class and fatty acid composition. During embryogenesis, triacylglycerol supplied most of the energy and the fatty acid 20:5 was selectively utilized. Absence of prolonged …
-
The effects of temperature on the physiology and locomotory behavior of the American lobster, Homarus americanus
… influence on the physiology and behavior of all lobsters, and especially those found in habitats where temperature fluctuates the most. One population of lobsters undergoes a seasonal migration in the Great Bay estuary system in NH, entering the estuary in late spring and returning to the coast …
-
Biochemical changes associated with embryonic and larval development in the American lobster Homarus americanus Milne Edwards
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Biology, 1984.
-
Changes in midgut gland morphology and digestive enzyme activities associated with development in early stages of the American lobster Homarus americanus
… in early life history stages of the American lobster Homarus americanus is examined in the present study by means of two separate but complementary approaches. A histological study on the light microscope level details the morphological changes which take ·place among the different …
-
Kristallographische Texturen und richtungsabhängige mechanische Eigenschaften des Exoskeletts des amerikanischen Hummers sowie Texturen weiterer Biomaterialien
… model organism to look at in detail is the American lobster - Homarus americanus. With the texture investigations and further calculations done for this work, a variety of new information could be won. For example it was possible to determine the textures of the two crystalline phases of the …
-
Modelling the Interaction of Fishing with Size Structure, Dimorphism, and Egg Production of Clawed Lobsters
… and unfished population dynamics of two clawed lobster species, American lobster (Homarus americanus) and European lobster (Homarus gammarus), under a variety of management strategies. Protection of ovigerous females takes two forms in this model. The American fishery in the Gulf of Maine …
-
Sea of change
… for the last great maritime fishery: American lobster. Every year, fishermen, scientists, and managers wait to see if the fishery reverses its fantastic growth, which has been a salutary effect of climate change over the past three decades. The gulf has as many horizons as it has …
-
Microstructure and mechanical properties of the exoskeleton of the lobster Homarus americanus as an example of a biological composite material
… properties using the cuticle or shell of the American lobster as a novel model material. The cuticle of the lobster Homarus americanus is a nano-composite material like most structural biological materials. It consists of a matrix of chitin-protein fibers associated with various amounts of …
-
The impact of seasonal movements by ovigerous American lobsters (Homarus americanus) on egg development and larval release
<p>The American lobster (Homarus americanus) supports one of the most economically successful fisheries in the Gulf of Maine. The continued success of this fishery is attributed in part to vigilant broodstock conservation through the preservation of ovigerous (egg-bearing) females. Previous studies …
-
Neuropeptide hormones from the eyestalks of Jasus Lalandii
… shore crab Carcinus maellas, and 2 spiny lobster species Jasus lalandii and Panulirus homarus by means of tissue immunocytochemistry and an enzyme-linked immunosorbent assay (ELISA). Positive immunoreactions, associated with the X-organ - sinus gland system only, were obtained with …
-
Crystallographic texture of the arthropod cuticle using synchrotron wide angle X-ray diffraction
… which include the crustaceans (e.g. crabs, lobsters, isopods), insects, arachnids (e.g. spiders, scorpions, ticks, mites), and several lesser groups, account for approximately 80 percent of all known animal species. The outer covering of these animals is referred to as exoskeleton or …
-
Developmental changes in the structure and function of lobster hemocyanin
… larval, juvenile, and adult stages of Homarus americanus. These studies elucidate the relationship between structure and function of hemocyanin, and provide some insights on larval ecology as well. Hemocyanin occurs in all larval stages of the American lobster in concentrations between 8 and 12 …