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61	Bidrag til Kundskab om Echinidern Lütken, Chr. Fr. January 1864 (has links) Thesis : Naturhistoriske forening i Kjøbenhavn, 1863.
62	Purification and characterization of major gelatin-cleavage activities in the apically located extracellular matrix of the sea urchin embryo / Ranganathan, Lavanya, January 2004 (has links) Thesis (M.Sc.)--Memorial University of Newfoundland, 2004. / Bibliography: leaves 139-156.
63	Evolution of phenotypic plasticity insights from echinoid larvae / Miner, Benjamin G., January 2003 (has links) Thesis (Ph. D.)--University of Florida, 2003. / Title from title page of source document. Includes vita. Includes bibliographical references.
64	Monitoring, Assessment, and Management of the Green Sea Urchin (Strongylocentrotus droebachiensis) Fishery in Maine Jones, Kate January 2006 (has links) (PDF) No description available. Sea urchin fisheries -- Maine Sea urchins -- Maine
65	Effects of Formulated Feeds and Saccharina Latissima on Growth, Gonadal-Somatic Index, and Gonad Color in Grow-Out Stage Green Sea Urchins, Strongylocentrotus droebachiensis, in Land-Based Echiniculture Kling, Ashley Lindsey January 2009 (has links) (PDF) No description available. Sea urchin culture Sea urchins -- Feeding and feeds
66	Spawning, aggregation and recruitment in the black sea urchin Diadema antillarum Younglao, Deborah January 1987 (has links) No description available. Sea urchins -- Behavior Diadematidae -- Caribbean Sea
67	Expression of maternal and zygotic genes during sea urchin embryogenesis Tufaro, Francis. January 1984 (has links) No description available. Echinodermata. Sea urchins -- Embryos. Proteins -- Synthesis. Embryology -- Echinodermata.
68	The distance chemosensory behavior of the sea urchin Lytechinus variegatus / The distance chemosensory foraging behavior of the sea urchin Lytechinus variegatus Pisut, Daniel P. (Daniel Peter) 09 January 2004 (has links) Many organisms that lack vision rely on chemical signals to glean information from their environment. Little is known, however, about the ability of sea urchins to detect and respond to such signals. This lack of understanding is especially surprising given the ecological impact of urchins in their respective communities. Regardless of geography, urchins exert strong top down control of plants, algae, and sedentary invertebrates, and these effects are especially evident when urchins, or urchin predators, are removed from an ecosystem. Facultative omnivorous species such as Lytechinus variegatus may greatly alter the abundances of other invertebrates in seagrass communities by preying on juvenile and adult bivalves as well as gastropod egg masses. These potential food resources, however, are patchily distributed within seagrass beds. To find such resources before other organisms can exploit them may require acute abilities to detect signals emanating from these patches. Experiments performed in this study demonstrated a consistent ability of L. variegatus to detect and orient to chemicals emanating from potential food resources over a distance of 1 m. Unlike what has been found in some other marine organisms, turbulent flow conditions did not negatively affect the ability of L. variegatus to find the source of this chemical cue. In fact, only the slowest flows hindered this ability; the bluff shape of the urchin formed a relatively large boundary layer at slow flows, preventing the delivery of chemical signals to the sensors. The relatively high success rates of L. variegatus in turbulent flows may allow it to effectively forage in areas where other organisms cannot. Thus, turbulence may provide a selective advantage for this animal, based on its comparative ability to detect and respond to signals in its environment. Sensory biology Behavior Sea urchin Lytechinus variegatus Sea urchins Behavior
69	Characterization and immunolocalization of a 41 kDa collagenase/gelatinase activity in the sea urchin embryo and its effect(s) on development / Mayne, Janice Ella, January 2001 (has links) Thesis (Ph.D.)--Memorial University of Newfoundland, 2001. / Bibliography: leaves 184-201.
70	A new apex predator in the gulf of Maine? Large, mobile crabs (Cancer Borealis) control benthic community structure / Leland, Amanda V., 1976- January 2002 (has links) Thesis (M.S.) in Marine Biology--University of Maine, 2002. / Includes vita. Bibliography: leaves 61-69.

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