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Showing 1 to 20 of 33 for “"Barnacle"”.
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Comparison of the Barnacle, Balanus amphitrite, in Different Environments
… it is currently facing ecological collapse. The barnacle, <em>Balanus amphitrite saltonensis</em> at the Salton Sea was once thought to be a subspecies of <em>B. amphitrite</em> due to distinctive morphological differences between populations at the Sea and San Diego Bay. However, only one …
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Sustainability of the gooseneck barnacle fishery in Asturias. Trends, drivers and lessons
… be carefully analyzed. The Asturian gooseneck barnacle fishery is a unique example of a complex social-ecological system that has been co-managed for the past 20 years. It provides an ideal case study to test the effect of alternative management strategies on the long-term sustainability of the …
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Physiological Response of the Giant Acorn Barnacle, Balanus nubilus, to Air Exposure
<p>The giant acorn barnacle, <em>Balanus nubilus</em>, is a resident of the subtidal and low intertidal rocky shoreline on the Pacific Coast of North America (Alaska to Baja California). <em>B. nubilus</em>is notable for having the largest muscle fibers in the animal kingdom; fiber diameters that …
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Recruitment of the intertidal barnacle Semibalanus balanoides ; metamorphosis and survival from daily to seasonal timescales
… (Chapter 4) highlight the role of preemption on barnacle recruitment. The second factor results from seasonal changes in environmental conditions that settlers experience in the benthic habitat, which could affect the physiology and survival probability of barnacle settlers. Highly unpredictable …
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Recruitment of the intertidal barnacle Semibalanus balanoides : metamorphosis and survival from daily to seasonable timescales
… (Chapter 4) highlight the role of preemption on barnacle recruitment. The second factor results from seasonal changes in environmental conditions that settlers experience in the benthic habitat, which could affect the physiology and survival probability of barnacle settlers. Highly unpredictable …
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Effect of Oxygen-Limiting Tidal Conditions on Muscle Metabolism and Structure in the Giant Acorn Barnacle, Balanus nubilus
… kingdom, with fiber diameters in the giant acorn barnacle (<em>Balanus nubilus</em>) exceeding 3 mm. Sessile animals with extreme muscle sizes and that live in the hypoxia-inducing intertidal zone – like <em>B. nubilus</em> – represent ideal models for probing the effects of oxygen limitation on …
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The Role of Artificial Structures in Facilitating Range Expansion of the Introduced Barnacle Megabalanus Coccopoma in the Southeastern U.S.A.
<p>The barnacle <em>Megabalanus coccopoma</em> is a recent invader of the southeastern U.S.A. from the tropical eastern Pacific. In Georgia, <em>M. coccopoma</em> populations along the immediate coastline often suffer extensive mortality during the winter, but population rebuilding is common after …
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Part 1. Biologically Active Compounds From Agelas Sponges. Part 2. Barnacle Settlement Inhibitors From Octocorallia (Antifouling, Antibacterial, Renillafoulins, Antiviral, Caribbean)
… antibacterial and antiviral, and were active in barnacle settlement and biochemical prophage induction assays. The structures, with tentative stereochemistries, were based on spectroscopic comparisons to sceptrin (2a) and two-dimensional NMR data.
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The effects of an invasive species on the structure of native ecosystems
The Australasian barnacle species Austrominius (=Elminius) modestus has been present in Europe for over seventy years, however little is known about how A. modestus interacts with native species, or how its presence may alter ecosystem function. It has been suggested that A. modestus may be an …
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Seasonal and spatial distribution of the mesozooplankton of Southampton Water with particular reference to the contribution of copepods and barnacle larvae to pelagic carbon flux
… components and identifying calanoid copepods and barnacle larvae as the major elements. Despite the number of studies, almost all knowledge about species composition, dominance and succession patterns of the mesozooplankton as a whole, is described from only a few studies, usually located at …
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Native And Invasive Competitors Of The Eastern Oyster Crassostrea Virginica In Mosquito Lagoon, Florida
… time, 3) determine how the dominant competitors, barnacles, affect oyster settlement, growth and survival, and 4) determine if oyster or barnacle larvae are better able to settle in increased sediment and flow conditions that are associated with high levels of recreational boating. Lift nets were …
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The development of time-dependent biofouling model for ships
Despite a large amount of research, the effect of barnacle fouling on the frictional resistance has a lack of systematical experimental investigation focussing on parameters such as size, coverage area and settlement pattern. Limited roughness functions data about barnacle fouling is available in …
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Climate Change and Biogeography In the Marine Intertidal
… marine invertebrates, such as mussels and barnacles, are excellent model organisms because their response to the environment is unmitigated by behavior. Furthermore, they are dominant primary space occupiers with discreet latitudinal distributions and well-studied range edges, which …
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Aspects of marine fouling in western Cape waters
… differed with depth. At 10m depth, mussel and barnacle-dominated communities developed rapidly, while at 20m depth, ascidian and barnacle-dominated communities developed more slowly. The role of primary film formation in the colonization of substrata by invertebrates was investigated in …
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Variation in diet of the West coast rock lobster (Jasus Ialandii) : influence of rock-lobster sex, size and food environment
… meridianalis), ribbed mussel (Aulacomya ater), barnacle (Notomegabalanus algicola), sea urchin (Parechinus angulosus), sponge and crustacean remains. There was no difference in diet between male and female rock lobsters within any size class. Bray-Curtis similarity dendograms and …
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Evolutionary and ecological genomics in deep-sea organisms
… biogeographic hypotheses of vent fauna using barnacles as model. Phylogeographic inferences suggest that the western Pacific was the place of origin of the major vent barnacle lineage, followed by circumglobal colonization eastward along the southern hemisphere during the Neogene. I suggest …
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Adult demography and larval processes in coastal benthic populations : intertidal barnacles in Southern California and Baja California
… regional patterns in demography of intertidal barnacles in Southern and Baja California. Horizontal and vertical distributions, and the mortality rates of larvae, were assessed from short term (i.e. days) small- scale observations (0.1-1 km) in nearshore waters. Observations on spatial …
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Exploring the Interface Between Macroorganisms and Microorganisms: Biochemical, Ecological, and Evolutionary Contexts
… uses of crustacean secretions are explored for barnacles, fiddler crabs and blue crabs. Fluids of interest were secretions released during barnacle settlement and metamorphosis and those collected from living adult barnacles, fluids on fiddler crab sensory appendages including dactyl washings …
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Early Recruitment of <i>Crassostrea virginica</i> to Restored and Natural Oyster Reefs in the Western Mississippi Sound: Larval Supply and Post-Settlement Success
… maximum individual size, geometric mean size, barnacle area cover, and spat scar abundance, and were compared relative to variation in background substrate, tile surface, predator exclusion treatment, region, and month. Larval densities varied among sites and increased throughout the summer. …
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Effects of Biofilm Age and Composition on Oyster Larval Setting
… larval settlement; however, similar studies with barnacle larvae have found an inhibitory relationship. The present study utilized field-produced biofilms of different ages to determine if natural biofilms inhibit or promote setting of larval oysters. Several aspects of the biofilms where analyzed …
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