Academic literature on the topic 'Barnacle'
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Journal articles on the topic "Barnacle"
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Romimohtarto, Kasijan, and Okto Haryanto Arinardi. "STUDIES ON THE DISTRIBUTION OF BARNACLE LARVAE AND THE BARNACLE FOULING IN THE ESTUARINE AREA OF MUARA KARANG." Marine Research in Indonesia 20 (May 10, 2018): 19–36. http://dx.doi.org/10.14203/mri.v20i0.380.
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Estuary hosts many of the meroplanktonic lives of marine animals, among which are the barnacles. The study of the seasonal abundance of the barnacle larvae and of the barnacle attachments at Muara Karang during 1975-1976 indicated that barnacle larvae and barnacle attachments occurred throughout the year. However, certain peaks of the larvae abundance and the high densities of attachment were found in certain months of the year. The peaks of larvae distribution were observed in April 1975, June 1975, September 1975, and January 1976. In general the density of the attached barnacles on panels was highest during the period of March - August, and lowest during December-February. The physical, biological, and sedimentological factors in relation with the distribution of the barnacle larvae and the density of the attached barnacles were discussed. Two governing factors seemed to be the wave and the sediment load. Relationship between the abundance of the barnacle larvae and the density of attachment was difficult to see.
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Metzler, Rebecca A., Jessica O'Malley, Jack Herrick, et al. "Amphibalanus amphitrite begins exoskeleton mineralization within 48 hours of metamorphosis." Royal Society Open Science 7, no. 9 (2020): 200725. http://dx.doi.org/10.1098/rsos.200725.
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Barnacles are ancient arthropods that, as adults, are surrounded by a hard, mineralized, outer shell that the organism produces for protection. While extensive research has been conducted on the glue-like cement that barnacles use to adhere to surfaces, less is known about the barnacle exoskeleton, especially the process by which the barnacle exoskeleton is formed. Here, we present data exploring the changes that occur as the barnacle cyprid undergoes metamorphosis to become a sessile juvenile with a mineralized exoskeleton. Scanning electron microscope data show dramatic morphological changes in the barnacle exoskeleton following metamorphosis. Energy-dispersive X-ray spectroscopy indicates a small amount of calcium (8%) 1 h post-metamorphosis that steadily increases to 28% by 2 days following metamorphosis. Raman spectroscopy indicates calcite in the exoskeleton of a barnacle 2 days following metamorphosis and no detectable calcium carbonate in exoskeletons up to 3 h post-metamorphosis. Confocal microscopy indicates during this 2 day period, barnacle base plate area and height increases rapidly (0.001 mm 2 h −1 and 0.30 µm h −1 , respectively). These results provide critical information into the early life stages of the barnacle, which will be important for developing an understanding of how ocean acidification might impact the calcification process of the barnacle exoskeleton.
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Boessenecker, Robert W. "Taphonomic implications of barnacle encrusted sea lion bones from the middle Pleistocene Port Orford Formation, coastal Oregon." Journal of Paleontology 87, no. 4 (2013): 657–63. http://dx.doi.org/10.1666/13-005.
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Fossil evidence of barnacle encrustation of vertebrate bones is reported from the middle Pleistocene Port Orford Formation of southern coastal Oregon. This material includes two associated thoracic vertebrae and a femur referable to the extinct sea lion Proterozetes ulysses that are encrusted by 1400+ individual barnacles (cf. Hesperibalanus hesperius), and a scapula of Zalophus californianus with barnacle attachment scars. In areas, the encrusting barnacles exhibit a roughly bimodal size range, and small barnacles are observed directly encrusting other larger individuals. The size, probable age, and lifespan of extant Hesperibalanus hesperius indicates a minimum period of four to seven months of seafloor exposure between decomposition and burial, although this estimate must be longer because at least two colonization events are represented. Barnacle attachment traces are identified as Anellusichnus circularis. The wide distribution of barnacles on some of these bones suggests these were regularly overturned by bottom currents, which would prevent barnacles from being smothered by prolonged contact with the sediment. Detailed study of barnacle-induced trace fossils on these specimens suggests that episkeletozoans and their traces can be useful sources of data regarding the biostratinomic history of vertebrate fossils.
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Ellrich, Julius A., Takefumi Yorisue, and Kyosuke Momota. "Limpet disturbance effects on barnacle recruitment are related to recruitment intensity but not recruit size." PeerJ 8 (June 2, 2020): e9190. http://dx.doi.org/10.7717/peerj.9190.
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Intertidal limpets are important grazers along rocky coastlines worldwide that not only control algae but also influence invertebrates such as common barnacles. For instance, grazing limpets ingest settling barnacle cyprid larvae (hereafter cyprids) and push cyprids and barnacle recruits off the substrate. Such limpet disturbance effects (LDEs) can limit barnacle recruitment, a key demographic variable affecting barnacle population establishment and persistence. In this study, we examined limpet (Lottia cassis) disturbance to barnacle (Chthamalus dalli, Balanus glandula) recruitment on the Pacific coast of Hokkaido, Japan, as information on limpet-barnacle interactions from this region is missing. We investigated, for the first time, whether barnacle size and recruitment intensity influence LDEs on barnacle recruitment. Small barnacles may be less susceptible to LDEs than larger barnacles, because small size may reduce the propbability of limpet disturbance. Moreover, recruitment intensity can influence LDEs, as high recruitment can compensate for LDEs on barnacle recruitment density. In Hokkaido, C. dalli cyprids are smaller than B. glandula cyprids, and C. dalli recruitment is higher than B. glandula recruitment. Thus, we hypothesized that LDEs on C. dalli recruitment would be weaker than those on B. glandula recruitment. To test our hypothesis, we conducted a field experiment during which we manipulated limpet presence/absence on the interior surfaces of ring-shaped cages. After four weeks, we measured barnacle recruitment and recruit size on the interior surfaces of the cages and found negative LDEs on C. dalli and B. glandula recruitment and recruit size. As hypothesized, the LDEs on C. dalli recruitment were weaker than the LDEs on B. glandula recruitment. Additionally, C. dalli recruits were smaller than B. glandula recruits. However, the LDEs on C. dalli recruit size were as strong as the LDEs on B. glandula recruit size, indicating that the smaller C. dalli recruits are not less susceptible to LDEs than B. glandula recruits. Since C. dalli recruitment was higher than B. glandula recruitment, we propose that the higher C. dalli recruitment compensated for the LDEs on C. dalli recruitment. Our findings indicate that the detected differences in LDEs on barnacle recruitment are related to barnacle recruitment intensity but not recruit size.
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Qin, Yuwen. "The Impact of Barnacles Attachments on Sea Turtles." Theoretical and Natural Science 112, no. 1 (2025): 42–47. https://doi.org/10.54254/2753-8818/2025.au23408.
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Barnacles are a sessile crustacean that attaches to the outer surface of sea turtles. Sea turtles are key species in marine ecosystems, and studying the impact of barnacles on sea turtles can indirectly reflect the health status of marine ecosystems. This paper aims to investigate the ecological impact of barnacle infestation on sea turtles, to discover the trend of barnacle load levels and their relationship with turtle health, and further explore how barnacle infestation affects the survival and behavior of sea turtles. The research findings show that light barnacle attachment does not cause harm. The severity of barnacle infection determines its impact on turtle movement while causing skin injuries and making them more vulnerable to infections. Barnacles sometimes function as health indicators instead of being direct threats to turtles. Our knowledge about turtle ecology has expanded through the analysis of research data from various geographic areas and periods. Barnacles' population changes are indicators of invasive species movements, while their distribution patterns invasively correlate with the water temperature and salinity levels. The study thus brings out the importance of separating epiphytes from overgrowth in the context of marine ecosystems. Marine biologists and ecologists who work on monitoring the health of turtles will be able to grasp the significance of distinguishing between epiphytes and overgrowth, as well as to develop assessment protocols.
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Coletti, Giovanni, Giulia Bosio, Alberto Collareta, John Buckeridge, Sirio Consani, and Akram El Kateb. "Palaeoenvironmental analysis of the Miocene barnacle facies: case studies from Europe and South America." Geologica Carpathica 69, no. 6 (2018): 573–92. http://dx.doi.org/10.1515/geoca-2018-0034.
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Abstract Acorn barnacles are sessile crustaceans common in shallow-water settings, both in modern oceans and in the Miocene geological record. Barnacle-rich facies occur from polar to equatorial latitudes, generally associated with shallow-water, high-energy, hard substrates. The aim of this work is to investigate this type of facies by analysing, from the palaeontological, sedimentological and petrographical points of view, early Miocene examples from Northern Italy, Southern France and South-western Peru. Our results are then compared with the existing information on both modern and fossil barnacle-rich deposits. The studied facies can be divided into two groups. The first one consists of very shallow, nearshore assemblages where barnacles are associated with an abundant hard-substrate biota (e.g., barnamol). The second one includes a barnacle-coralline algae association, here named “barnalgal” (= barnacle / red algal dominated), related to a deeper setting. The same pattern occurs in the distribution of both fossil and recent barnacle facies. The majority of them are related to very shallow, high-energy, hard-substrate, a setting that represents the environmental optimum for the development of barnacle facies, but exceptions do occur. These atypical facies can be identified through a complete analysis of both the skeletal assemblage and the barnacle association, showing that barnacle palaeontology can be a powerful tool for palaeoenvironmental reconstruction.
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ACHITUV, YAIR, and NOA SIMON-BLECHER. "Pyrgopsella (Cirripedia: Balanomorpha: Pyrgomatidae) is not a sponge-inhabiting barnacle." Zootaxa 1319, no. 1 (2006): 29. http://dx.doi.org/10.11646/zootaxa.1319.1.3.
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A new species of coral-inhabiting barnacle, Pyrgopsella youngi, is described. It was found in a colony of the coral Symphyllia radians Milne Edwards & Haime, 1849 from Sulawesi, Indonesia. The barnacles were suspended in the coral tissue and were easily detached. A unique feature of Pyrgopsella is its membranous basis; in P. youngi the calcareous basis is reduced to a vestige by which the barnacle is attached to the coral. Pyrgopsella has been regarded as a genus of sponge-inhabiting barnacle, thus unique in the otherwise coral-associated family Pyrgomatidae, but our findings confirm that this genus too comprises coral-inhabiting barnacles. We propose a new genus, Pyrgospongia, to accommodate the sponge-inhabiting barnacle originally described as Pyrgopsella stellula Rosell, 1973. The relationships of both Pyrgopsella and Pyrgospongia within the Pyrogomatidae are discussed.
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Lim, Kah Kheng, Muhammad Ali Syed Hussein, and Pushpa Palaniappan. "Abundance, placement and sexual identity of the epizoic barnacle Chelonibia testudinaria relative to the size and species of host turtles in Mabul Island, Malaysia." Journal of the Marine Biological Association of the United Kingdom 100, no. 8 (2020): 1299–309. http://dx.doi.org/10.1017/s0025315420001198.
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AbstractSea turtles are partners in commensal relationships with a variety of epibionts, including barnacles. The acorn barnacle Chelonibia testudinaria is one species commonly found associated with sea turtles and other marine fauna throughout temperate to tropical waters including the Indo-Pacific. We conducted a study to assess the occurrence of this barnacle, relative to host life stage and species in a mixed foraging population of green (Chelonia mydas) and hawksbill (Eretmochelys imbricata) turtles (juvenile, sub-adult, adults (female and male)) in Mabul Island, Sabah, Malaysia (Celebes Sea). Expecting similar relative abundance by life stage, we found instead a significant effect between the combined dependent variables (abundance and size of barnacles) and the life stages of sea turtles in Mabul after controlling for the covariates of size and species of sea turtles (F(8, 428) = 5.77, P < 0.001, Pillai = 0.19). Among green turtles with barnacles, though adult males had larger barnacles compared with the female turtles, the mean barnacle abundance on adult females (43.4 individuals ± 5.19 SD) was higher than all other life stages. Most of the barnacles (85.6%; N = 1931) were found on the plastron of the sea turtles. The highest number of barnacle reacquisition was found among the juvenile turtles. In assessing the complemental males of the barnacles, we found they were consistently attached to the shells of the larger of the hermaphrodites from each region of the host's body despite average shell-size differences with each region.
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Trivedi, Jigneshkumar N., Mahima Doshi, Krupal J. Patel, and Benny K. K. Chan. "Diversity of intertidal, epibiotic, and fouling barnacles (Cirripedia, Thoracica) from Gujarat, northwest India." ZooKeys 1026 (March 26, 2021): 143–78. http://dx.doi.org/10.3897/zookeys.1026.60733.
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The present work studied the diversity of intertidal, epibiotic, and fouling barnacles in the state of Gujarat, northwest India. In total, eleven species belonging to eight genera and five families were recorded in the present study. The Arabian intertidal species Tetraclita ehsani Shahdadi, Chan &amp; Sari, 2011 and Chthamalus barnesi Achituv &amp; Safriel, 1980 are common in the high- and mid-intertidal rocky shores of Gujarat suggesting that the Gujarat barnacle assemblages are similar to the assemblages in the Gulf of Oman Ecoregion. The biogeographical boundary between the Gulf of Oman and Western Indian ecoregions for barnacles should probably extend southward towards the waters adjacent to Mumbai, where Indo-Pacific species of intertidal barnacles dominate. This study provides the first reports of the common widely distributed balanomorph barnacles Striatobalanus tenuis (Hoek, 1883), Tetraclitella karandei Ross, 1971, Amphibalanus reticulatus (Utinomi, 1967), and lepadid barnacle Lepas anatifera Linnaeus, 1758 in Gujarat, as well as of the chthamalid barnacle Chthamalus barnesi in India.
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Trivedi, Jigneshkumar N., Mahima Doshi, Krupal J. Patel, and Benny K. K. Chan. "Diversity of intertidal, epibiotic, and fouling barnacles (Cirripedia, Thoracica) from Gujarat, northwest India." ZooKeys 1026 (March 26, 2021): 143–78. https://doi.org/10.3897/zookeys.1026.60733.
Full textAbstract:
The present work studied the diversity of intertidal, epibiotic, and fouling barnacles in the state of Gujarat, northwest India. In total, eleven species belonging to eight genera and five families were recorded in the present study. The Arabian intertidal species Tetraclita ehsani Shahdadi, Chan & Sari, 2011 and Chthamalus barnesi Achituv & Safriel, 1980 are common in the high- and mid-intertidal rocky shores of Gujarat suggesting that the Gujarat barnacle assemblages are similar to the assemblages in the Gulf of Oman Ecoregion. The biogeographical boundary between the Gulf of Oman and Western Indian ecoregions for barnacles should probably extend southward towards the waters adjacent to Mumbai, where Indo-Pacific species of intertidal barnacles dominate. This study provides the first reports of the common widely distributed balanomorph barnacles Striatobalanus tenuis (Hoek, 1883), Tetraclitella karandei Ross, 1971, Amphibalanus reticulatus (Utinomi, 1967), and lepadid barnacle Lepas anatifera Linnaeus, 1758 in Gujarat, as well as of the chthamalid barnacle Chthamalus barnesi in India.
Dissertations / Theses on the topic "Barnacle"
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Choudhury, Sharmila. "Mate choice in Barnacle geese." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306596.
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Smith, Pauline Anne. "Hormonal regulation of barnacle development." Thesis, Royal Holloway, University of London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300467.
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Hyder, Kieran. "Barnacle demography : a matrix modelling approach." Thesis, University of Southampton, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285626.
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Gude, Adrian R. "Assessment and implications of the supply of Semibalanus balanoides (L.) larvae to shores in Fife, East Scotland." Thesis, University of St Andrews, 2007. http://hdl.handle.net/10023/164.
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Investigations into the supply, settlement and recruitment of the barnacle Semibalanus balanoides (L.) to shores in Fife, East Scotland were undertaken over three consecutive years (2004 – 2006). Several designs of a passive larval trap, based on earlier published designs, were employed to quantify the delivery (supply) of cyprids to the substratum. Pump samples from the water column were collected to provide a measure of intertidal cyprid concentration. Cyprid concentration was found to exhibit both spatial and temporal variation, but was also found to be significantly correlated with cyprid supply, as quantified by the traps. In some years, pump and trap samples suggested that cyprid abundance in the intertidal was mediated by wind-driven processes. An artificial substratum was used to quantify cyprid settlement, allowing investigations into the supply-settlement relationship. Supply and settlement were found to be two very distinct biological phases. Supply describes the flux of larvae to the substratum. Settlement provides a measure of the amount of larvae that decide to settle on the substratum, as initial attachment for barnacle larvae is not permanent. Whilst supply saturation is unfeasible, daily saturation of the substratum by settlers was observed at many sites along the Fife coast. Levels of settlement saturation were found to vary both temporally, between years, and spatially, over scales of km. Varying levels of the desperation of larvae to settle, mediated by dwindling energy reserves, was thought to explain some of this variation. The supply data also provided some evidence of the possible movement of cyprids along the Fife coast from Fife Ness to Tentsmuir. However, wind-induced transport may also play a dominant role on the Fife coast. A comparison of supply and recruitment of larvae into adult populations revealed that both pre- and post-settlement events may influence recruitment. The relative importance of these factors was shown to be density-dependent. Negative intraspecific interactions were only seen in denser aggregations of adults. In less crowded aggregations, recruitment reflected initial patterns of larval supply.
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Leone, Stacy E. "Predator induced plasticity in barnacle shell morphology /." Abstract Full Text (HTML) Full Text (PDF), 2008. http://eprints.ccsu.edu/archive/00000496/02/1952FT.htm.
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Thesis (M.A.) -- Central Connecticut State University, 2008.<br>Thesis advisor: Jeremiah Jarrett. "... in partial fulfillment of the requirements for the degree of Master of Arts in Biology." Includes bibliographical references (leaves 27-29). Also available via the World Wide Web.
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Naldrett, Michael James. "Cement and other adhesives in the barnacle." Thesis, University of Reading, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306213.
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Di, Fino Alessio. "Comparative approach to barnacle adhesive-surface interactions." Thesis, University of Newcastle upon Tyne, 2015. http://hdl.handle.net/10443/2838.
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Barnacles are considered to be one of the major marine fouling organisms. Their settlement behaviour has been investigated using mainly Balanus amphitrite as a model organism. To better understand the mechanisms involved during the colonisation of surfaces by cypris larvae we have investigated another species, B. improvisus, which is reported to have different surface preferences compared to B. amphitrite. This study aims to unravel the effects of surface physicochemical cues, in particular surface free energy (SFE), surface charge and elastic modulus on the settlement of cyprids of both species. The use of well-defined surfaces under controlled conditions further facilitates comparison of the results with B. amphitrite. Furthermore, since this phase of presettlement behaviour is characterised by temporary adhesive (footprint) deposition, considered to be fundamental to surface exploration and surface discrimination by cyprids, some of the chemistries used for the settlement assays were used to investigate temporary adhesive-surface interactions. Cyprids were exposed to a series of model surfaces, namely self-assembled monolayers (SAMs) of alkanethiols with varying end-groups, homogenously applied to gold-coated polystyrene Petri dishes. The settlement response was significantly higher on negatively charged SAMs and lower on positively charged surfaces, while intermediate settlement occurred on neutral SAMs. Furthermore, no effects were observed when data were plotted against surface free energy after 48 hr of exposure. Temporary adhesive on SAMs was investigated using imaging ellipsometry and atomic force microscopy. Relatively thick footprints with low wetting were found on positively charged surfaces. Settlement of both species was also low on these surfaces. Footprints were thinner and spread more on hydrophobic surfaces. The adhesion force of temporary adhesive measured with functionalised AFM tips was higher on hydrophobic and negatively charged surfaces for both species. Furthermore, PDMS-based surfaces were prepared varying the elastic modulus, keeping constant other parameters, settlement behaviour and strength of adhesion of juveniles and adults were tested. We conclude that cyprid settlement behaviour of both species is influenced more by surface charge than SFE under controlled conditions. The temporary adhesives (footprints) of the two species had a stronger affinity for hydrophobic surfaces. Contrary ii to previous reports, therefore, the settlement preferences and adhesive secretion of these two species are similar. Elastic modulus influences settlement, juveniles and adults removal of both species, although B. improvisus is more sensitive if compared with B. amphitrite. This finding will be important for understanding the mechanism of surface selection by cyprids and for the development of future antifouling technologies.
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Fontani, Sonia. "Genetic biodiversity of the European barnacle Chthamalus montagui." Thesis, University of Plymouth, 2009. http://hdl.handle.net/10026.1/2733.
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Biodiversity ultimately is genetic diversity. Genetic diversity within species is eroded before negative trends in biodiversity become evident as loss of species or habitats. Hence, monitoring biodiversity at the genetic level may indicate what will happen at higher levels of organisation if the trend is allowed to continue. There is a pervasive belief that marine ecosystems are less vulnerable to biodiversity loss than terrestrial ones, due to marine species' high dispersal ability and connectivity, large geographic ranges, low genetic differentiation among populations and high genetic variation within populations. Many studies offer compelling evidence that it is not so: loss of genetic variation due to natural and anthropogenic factors has been detected even in marine species with potentially high dispersal. In this context the genetic pattern of the European barnacle Chthamalus montagui, a species with high dispersal capability, was investigated from three different perspectives using polymorphic microsatellite loci as molecular markers. The effect of structures created to protect coastal areas in the Adriatic Sea, was investigated to test the hypothesis that artificial substrates can act as "corridors" facilitating gene flow among previously isolated populations. The genetic pattern of central populations was compared to that of peripheral/marginal populations over the range of C. montagui in the UK, to test the hypothesis that marginal and peripheral populations tend to be less genetically variable than central ones. For both studies results were consistent with the formulated hypotheses at the 3 analysed loci. Finally, a broader survey of the NE Atlantic and Mediterranean range of this barnacle was carried out to assess spatial scales of genetic variation. A clear differentiation between Atlantic and Mediterranean samples was detected; however, the major source of genetic variation was within sites at a very small spatial scale. The information gained generates insights for marine genetic management and conservation planning.
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Goldberg, Harry. "An investigation of the feasibility of gooseneck barnacle mariculture (Lepas anatifera)." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24671.
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Gooseneck barnacles (Pollicipes cornucopia) exceeding 4 cm in length are a favourite seafood in Spain. In 1978 the British Columbia seafood industry introduced the indigenous species Pollicipes polymerus into this potentially lucrative market. Due to the problems associated with this species its export was unsuccessful.
Alternatively, to fill either the void left by Pollicipes pollymerus and/or future markets, the acquisition of seed and the subsequent suspended culture of the gooseneck barnacle, Lepas anatifera, were investigated.
Lepas anatifera successfully colonized the cultch (oyster shells, wooden dowelling and rubber) that was deployed at two locations off the west coast of Vancouver Island. The success of the colonization of cultch and the information obtained from a previous survey suggested that the set occurs regularly between the middle of April and the end of May off the west coast of Vancouver Island.
The suspended culture of Lepas anatifera indicated that growth may be site specific and that areas of a high phytoplankton/zooplankton ratio may be detrimental to growth and time to sexual maturation. At the densities studied, survival seems to be proportional to density. Capitulum growth and weight gain were significantly greater for Lepas anatifera protected from predation within lantern nets than for those grown exposed on lines of oyster shells and wooden doweling. The average total length (capitulum plus peduncle) exceeded 4cm within 17 to 23 weeks.<br>Land and Food Systems, Faculty of<br>Graduate
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Percival, Stephen Mark. "Grazing ecology of barnacle geese (Branta leucopsis) on Islay." Thesis, University of Glasgow, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338180.
Full textBooks on the topic "Barnacle"
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universitet, Uppsala, ed. Ecological and quantitative genetic processes in a population of the Barnacle goose (Branta leucopsis). Universitatis Upsaliensis, 1992.
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Charlton, Maureen. Lyrics from Norah Barnacle and other poems. Desktop Publishing Services, 1990.
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Tess, Gallagher, ed. Barnacle soup, and other stories from the west of Ireland. Blackstaff Press, 2007.
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Tess, Gallagher, ed. Barnacle soup, and other stories from the west of Ireland. Eastern Washington University Press, 2008.
Find full textBook chapters on the topic "Barnacle"
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Gooch, Jan W. "Barnacle." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_1082.
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Ehrlich, Hermann. "Barnacle Cements." In Biological Materials of Marine Origin. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9130-7_23.
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Kamino, Kei. "Barnacle Underwater Attachment." In Biological Adhesives. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-46082-6_7.
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Kamino, Kei. "Barnacle Underwater Attachment." In Biological Adhesives. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-31049-5_8.
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Wiegemann, M. "Structure Formation in Barnacle Adhesive." In Adhesion. Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527607307.ch10.
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Thomason, J. C., J. M. Hills, A. S. Clare, A. Neville, and M. Richardson. "Hydrodynamic consequences of barnacle colonization." In Recruitment, Colonization and Physical-Chemical Forcing in Marine Biological Systems. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-2864-5_16.
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Ashley, C. C., P. J. Griffiths, T. J. Lea, I. P. Mulligan, R. E. Palmer, and S. J. Simnett. "Barnacle muscle: Ca2+, activation and mechanics." In Reviews of Physiology, Biochemistry and Pharmacology. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/bfb0035275.
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Burke, Lois. "Aspiration and Adaptation in Charlotte Yonge’s the Barnacle." In Late-Victorian Girls and their Manuscript Magazines. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-86524-4_2.
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Abstract Adult models of authorship significantly shaped girls’ manuscript writing cultures. This chapter will consider the Barnacle, a manuscript magazine edited by the writer Charlotte M. Yonge and circulated amongst her essay group made up of adolescent girls known as The Goslings throughout the 1860s and 1870s. This manuscript magazine presents a complex negotiation of cultural identity vis-à-vis literary knowledge and writing ability. The aspirational status of the manuscript magazine demanded an extensive cultural knowledge of the girl contributors, but they often mocked the hierarchy of highbrow magazine culture in their writing and illustration. The Barnacle is a prime example of girlhood adaptation and transformation in the manuscript magazine form, which fluctuated between valorising distinctly male or female models of authorship that were entrenched by the mid-Victorian period.
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Terwilliger, Robert C., Nora B. Terwilliger, and Eric Schabtach. "Hemoglobin from the Parasitic Barnacle, Briarosaccus Callosus." In Invertebrate Oxygen Carriers. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71481-8_24.
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Kamino, Kei, and Yoshikazu Shizuri. "Structure and Function of Barnacle Cement Proteins." In New Developments in Marine Biotechnology. Springer US, 1998. http://dx.doi.org/10.1007/978-1-4757-5983-9_16.
Full textConference papers on the topic "Barnacle"
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Norizam, Nik Nor Azrizam Nik, Azmi Mohammed Nor, and Hasrizal A. Rahman. "Assessing Developed Anti-Biofouling Compound Extracted from Marine Resources in Preventing Marine Growth for Static Structure Application at South China Sea." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-18904.
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Abstract Marine growth had become a challenging issue to offshore industry, particularly at water injection system and immersed structures. Its presence will affect the performance of the facilities by reducing the efficiency of heat exchangers and causing excessive increase in weight to offshore structures and equipment. The effect could consequently lead to production deferment. Existing methods to control marine growth such as using chemical treatment (biocide and tributyltin) and mechanical treatment (mechanical wiper/shutter) do not seem to have been effective or environmental-friendly while at the same time, consuming high-power costs. In this research study, the focus it to assess extracted anti-fouling compound from identified potential marine resources in preventing marine growth at static structure application. The research methodology will consist of extraction of the compounds, anti-bacterial activity screening and anti-fouling analysis as part of preliminary screening to test efficiency in preventing the growth of barnacles specifically. The selected compounds from screening incorporate into a suitable anti-fouling paint. The efficiency of selected compound is further evaluated by continuing with field exposure at identify site location located at south china sea. During the field exposure, small coupons are coated according to PETRONAS technical standard requirement and expose for duration of a month. The results from a month field exposure show developed anti-fouling compound managed to prevent growth of barnacle. In conclusion, the developed anti-fouling compounds have potential to prevent marine growth specifically barnacle growth.
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Thomaier, Rob, and Matthew Lindberg. "Non-Toxic Novel Silicone Foul-Release Marine Coatings." In SSPC 2012 Greencoat. SSPC, 2012. https://doi.org/10.5006/s2012-00053.
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Abstract With new regulations restricting the use of toxic metals and chemicals, the marine coating industry is in need of new coatings. Ideally, these new materials should be non-toxic and biologically inert but still prevent the adhesion of marine life. The coatings should be easy to apply, cure rapidly and be relatively tough elastomers. This study evaluates modified silicone materials as foul-release coatings. The coatings were tested by a novel barnacle adhesion test with adhesion results in two weeks. The test consisted of coated glass slides upon which a barnacle was transferred from one substrate and re-attached to the test slide. After the barnacle re-attached, the adhesion was directly measured by a force displacement tester. Results are measured in psi. Also, coatings were evaluated with in-situ samples placed in test racks in Morro Bay, California. Concrete samples were be coated with foul-releasing coatings and submerged off the beach in Central California. Marine growth was monitored and photos taken at monthly intervals, with the growths identified and quantified.
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Norizam, Nik Nor Azrizam Nik, Hasrizal A. Rahman, and Azmi Mohammed Nor. "Development of Anti-Fouling Compound Extracted from Marine Resources in Preventing Marine Growth for Static Applications at Warm and Cold Water Environments." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-20577.
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Abstract Marine growth had become a challenging issue to offshore industry, particularly at water injection system and immersed structures. Its presence will affect the performance of the facilities by reducing the efficiency of heat exchangers and causing excessive increase in weight to offshore structures and equipment. The effect could consequently lead to production deferment. Existing methods to control marine growth such as using chemical treatment (biocide and tributyltin) and mechanical treatment (mechanical wiper/shutter) do not seem to have been effective or environmental-friendly while at the same time, consuming high-power costs. In this research study, the focus is to assess extracted anti-fouling compound from identified potential marine resources in preventing marine growth at static structure application. The research methodology will consist of extraction of the compounds, anti-bacterial activity screening and anti-fouling analysis as part of preliminary screening to test efficiency in preventing the growth of barnacles specifically. The selected compounds from screening incorporate into a suitable anti-fouling paint. The efficiency of selected compound is further evaluated by continuing with field exposure at identify site location located at south china sea. During the field exposure, small coupons are coated according to PETRONAS technical standard requirement and exposed for duration of a month. The results from a month field exposure show developed anti-fouling compound managed to prevent growth of barnacle. The success formulation from a month exposure is further evaluated at two type water environments which are warm and cold for duration of six months. Outcome from the exposure shows positive result. In conclusion, the developed anti-fouling compounds have potential to prevent marine growth, specifically barnacle growth.
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Barretto, Kean Jerome J., Angelo B. Mendoza, Angelyn A. Pontipedra, et al. "UAV-Based Barnacle (Cirripedia) Detection System for Dry-Docked Ship Hulls Using Transfer Learning." In 2024 IEEE 12th Conference on Systems, Process & Control (ICSPC). IEEE, 2024. https://doi.org/10.1109/icspc63060.2024.10862164.
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Griffin, R. B., L. R. Cornwell, W. Seitz, and E. Estes. "Localized Corrosion under Biofouling." In CORROSION 1988. NACE International, 1988. https://doi.org/10.5006/c1988-88400.
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Abstract A 1019 steel, 6061-T6 aluminum and 304, 316, 430 and 446 stainless steels were immersed for three years in a seawater test site near Galveston, TX. Data will be reported for both uniform and pitting corrosion rates of these alloys. The sites where the localized corrosion was initiated, with respect to the biofouled surface, will be discussed. For all of the alloys discussed, with the exception of the steel, the majority of the pits were found in close proximity to the barnacle attachment sites.
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Ahmed, Marzia, Ahmad Johari Mohamad, Md Maruf Hassan, and Touhid Bhuiyan. "Air Pollutant (CO) Forecasting: A Hybrid Approach Using Gooseneck Barnacle Optimization and Artificial Neural Networks." In 2025 IEEE 4th International Conference on AI in Cybersecurity (ICAIC). IEEE, 2025. https://doi.org/10.1109/icaic63015.2025.10849028.
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Tyson, Lyndsey, and Ian Fletcher. "Novel Slime Release Biocide Free Technology." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4468.
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Abstract Industrial inefficiency as the result of bio-fouling accumulation is well-known. The build-up of fouling can compromise power plants and water treatment facilities that rely on optimized water flow. Hard animal fouling can also affect the structural integrity of offshore oil and gas facilities. Over the years coatings suppliers have mainly addressed the issue of bio-fouling build-up on the outside of marine vessels by using anti-fouling coatings that use active biocides to deter fouling growth. Biocide-free elastomer technology has also been developed that is particularly effective at preventing bio-fouling build-up even in static water conditions. Fouling control coatings have come a long way and although these technologies can be effective against hard shell (barnacle) and weed growth they continue to struggle against slime or micro-organism build-up. That is until now. This paper presents a novel patented technology that greatly reduces the build-up of slime paving the way to improving the efficiency of industrial installations.
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Kain, R. M. "Crevice Corrosion Behavior of Coated Stainless Steel in Natural Seawater." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00827.
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Abstract Normally, stainless steels are utilized without any type of coating whatsoever. This report cites a few cases where coatings may be contemplated for use on stainless steels. Of particular interest is the use of various antifouling type coating systems applied over anticorrosion barrier coating systems for seawater service. Testing in natural seawater has demonstrated that coatings can protect susceptible stainless steel from barnacle related crevice corrosion and localized corrosion at weldments. However, coating defects and other unintentional or intentional interfaces with bare metal may create new areas for crevice corrosion to initiate. The risk of serious crevice corrosion damage to the substrate increases with the amount of bare metal exposed. Test results demonstrated that even a relatively small area of bare stainless steel is sufficient to support cathodic reactions that produce crevice corrosion penetrations in excess of 2 mm in less than six months. Even a 6% Mo alloy was susceptible. It was demonstrated that localized corrosion can be prevented by the use of cathodic protection from sacrificial zinc anodes. However, the degree of polarization associated with zinc anodes contributed to blistering and disbonding of the coating in some cases. The current test program did not investigate protection afforded by inorganic zinc-rich primers.
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Hodgkiess, T., and A. Neville. "Localised Effects of Macrofouling Species on Electrochemical Corrosion of High Grade Alloys." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98704.
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Abstract Interactions between macrofouling and corrosion on some stainless steels, UNS N06625 and UNS R30006 have been studied in long-term tests conducted in natural seawater off the West coast of Scotland. After a 18-month exposure period, the specimens were heavily fouled primarily with barnacles and mussels and all the materials exhibited crevice corrosion although this was less extensive on the Ni-base alloy. Localised corrosion was observed under the base of live barnacles on UNS S31603 stainless steel. DC electrochemical anodic polarisation tests undertaken after the 18-month exposure period, yielded unusually high currents in the range of potential between the free corrosion value and the breakdown potential. This observation was associated with the appearance, after the anodic polarisation, of black sulphide corrosion products at the specimen/resin crevices, around barnacles and around mussel byssus threads.
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Bayer, George T., Mehrooz Zamanzadeh, Anil Kumar Chikkam, and Aaron Ulmer. "Investigation of Painted Steel Piles at a Marine Commerce Terminal in Coastal New England." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-18780.
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Abstract This case study presents the results and conclusions of an investigation of painted steel piles at a marine commerce terminal in coastal New England, including a review of relevant engineering specifications and other documents, an on-site field investigation, and laboratory analysis of samples collected. A review of specifications showed that the specifications approved for the paint system were inadequate for long term service without using cathodic protection. No cathodic protection was placed on the back side of piles and should be extended to back side for corrosive soil exposure. After five years, the paint coating looks good in non-repaired areas. No corrosion or blisters were observed in non-repaired areas in the atmospheric zone or in areas where there is no mechanical damage or barnacles. Maintenance/repair coating of the previously repaired and mechanically damaged areas and cathodic protection monitoring can take care of problems. No corrosion or accelerated corrosion in blisters was observed due to cathodic protection and high pH. Indications are that barnacles contributed and may have caused the blisters.
Reports on the topic "Barnacle"
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Grubba, Timothy. Human Trampling in the Upper Rocky Intertidal: Trampling and Recovery in Barnacle Mediated Succession. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.7246.
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McMahan, Tara, Bill Amend, Ken Evans, Tom Bubenik, and Michael Rosenfeld. PR186-223601-R01 Evaluation of Selective Seam Weld Corrosion Susceptibility. Pipeline Research Council International, Inc. (PRCI), 2024. http://dx.doi.org/10.55274/r0000065.
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Selective seam weld corrosion (SSWC) in autogenous welds is characterized by accelerated corrosion of or near the bondline which results in a groove-like feature that often coincides with shallower corrosion that can extend beyond the limits of the longitudinal seam. Historically, SSWC has been referred to as "grooving corrosion", "knife-line attack", or "trench-like corrosion". In 2021, the Pipeline Research Council International, Inc. (PRCI) funded a project, PRCI Project EC-2-12, to evaluate SSWC as a threat to gas and liquid pipeline systems. The project included a literature review of key parameters influencing the likelihood of SSWC within a particular type of pipe over others, benchmarking of the key parameters using industry experience and data, and the development of a susceptibility process for the threat of SSWC within gas and liquid pipeline segments. From the literature review, a summary of hypothesized influencing parameters was compiled and those considered to more strongly and consistently indicative of susceptibility were identified as key parameters (e.g., longitudinal seam weld type, chemical composition of the plate material, and evidence of a post-weld heat treatment, etc.). The key parameters were then benchmarked against pipeline industry data from confidential as well as public sources. Industry data were collected for line pipe known to be susceptible to the threat of SSWC (i.e., SSWC has been identified within it through direct examination and/or metallurgical analysis). Additionally, mill test reports for line pipe manufactured prior to 1990 and historical line pipe manufacturing specifications that could indicate typical manufacturing practices of the time were collected and compiled. As a result of the benchmarking effort, some key parameters were confirmed, and others were dismissed if industry data indicated it was unlikely they could be relied upon to determine susceptibility to the threat of SSWC individually or in concert with other parameters. Key parameters confirmed as reliable through industry benchmarking and considered readily accessible to most pipeline operators informed the development of a SSWC susceptibility determination process. The process is comprised of 'swim' lanes that consider threat history, line pipe susceptibility, and environmental influences. The project also included an investigation into the Barnacle probe technique as a potential field deployable methodology to determine susceptibility to SSWC. Currently, it is the most common method to test for SSWC susceptibility in the field and is an electrochemical cell that attaches to the exterior of a pipe directly over the bondline after the surface has been properly cleaned. The linear polarization resistance (LPR) technique is used within the Barnacle cell to measure the polarization resistance of the bondline compared to the polarization resistance of the surrounding base metal. The ratio of the polarization resistances, which is a measure of the relative corrosion rates at the bondline and surrounding metal, provides an indication of how susceptible the bondline is to SSWC. The Barnacle probe technique was applied to materials with varying degrees of anticipated susceptibility. The results of the technique were benchmarked using accelerated dissolution tests to measure actual grooving ratios for the same range of materials.
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Whitaker, Stephen. Rocky intertidal community monitoring at Channel Islands National Park: 2018–19 annual report. National Park Service, 2023. http://dx.doi.org/10.36967/2299674.
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Channel Islands National Park includes the five northern islands off the coast of southern California (San Miguel, Santa Rosa, Santa Cruz, Anacapa, and Santa Barbara Islands) and the surrounding waters out one nautical mile. There are approximately 176 miles of coastline around the islands, about 80% of which is composed of rock. The diversity and undisturbed nature of the tidepools of this rocky coastline were recognized as special features of the islands in the enabling legislation. To conserve these communities unimpaired for future generations, the National Park Service has been monitoring the rocky intertidal communities at the islands since 1982. Sites were established between 1982 and 1998. Site selection considered visitation, accessibility, presence of representative organisms, wildlife disturbance, and safety. This report summarizes the 2018–2019 sampling year efforts (from November 2018 to April 2019) and findings of the Channel Islands National Park Rocky Intertidal Community Monitoring Program. Specific monitoring objectives are 1) to determine the long-term trends in percent cover of key sessile organisms in the rocky intertidal ecosystem, and 2) to determine population dynamics of black abalone (Haliotis cracherodii), owl limpets (Lottia gigantea), and ochre sea stars (Pisaster ochraceus). Objectives were met by monitoring percent cover of core species in target intertidal zones using photoplots and transects, and by measuring size frequency and abundance of black abalone, owl limpets, and sea stars using fixed plots or timed searches. Twelve key species or assemblages, as well as the substrate, tar, have been monitored twice per year at 21 sites on the five park islands as part of the rocky intertidal community monitoring program. Fixed photoplots were used to monitor the percent cover of thatched and acorn barnacles (Tetraclita rubescens, Balanus glandula/Chthamalus spp., respectively), mussels (Mytilus californianus), rockweeds (Silvetia compressa, and Pelvetiopsis californica (formerly Hesperophycus californicus), turfweed (Endocladia muricata), goose barnacles (Pollicipes polymerus) and tar. Point-intercept transects were used to determine the percent cover of surfgrass (Phyllospadix spp.). Information about size distribution (i.e., “size frequency” data) was collected for owl limpets in circular plots. Size distribution and relative abundance of black abalone and ochre sea stars were determined using timed searches. The maximum number of shorebirds and pinnipeds seen at one time were counted at each site. The number of concession boat visitors to the Anacapa tidepools was collected and reported. All sites were monitored in 2018–2019. This was the third year that we officially reduced our sampling interval from twice per year (spring and fall) to once in order to streamline the program and allow for the implementation of additional protocols. Weather conditions during the site visits were satisfactory, but high wind coupled with strong swell and surge limited or prevented the completion of some of the abalone and sea star searches. The percent cover for most key species or assemblages targeted in the photoplots was highly variable among sites. Mussel (Mytilus californianus) cover remained below average at Anacapa and Santa Barbara Islands. Record or near record low abundances for Mytilus were measured at Middle West Anacapa (Anacapa Island), Harris Point (San Miguel Island), Prisoner’s Harbor (Santa Cruz Island), and Sea Lion Rookery (Santa Barbara Island) sites. The only site that appeared to have above average Mytilus cover was Scorpion Rock on Santa Cruz Island. All other sites had mussel cover near or below the long-term mean. Qualitatively, Mytilus recruitment appeared low at most sites. Both rockweed species, Silvetia compressa and Pelvetiopsis californica (formerly Hesperophycus californicus), continued to decrease markedly in abundance this year at the majority of sites compared to combined averages for previous years. Fossil Reef and Northwest-Talcott on Santa Rosa Island, Sea Lion Rookery on Santa Barbara Island, and South Frenchy’s Cove on Anacapa Island were the only sites that supported Silvetia cover that was near the long-term mean. No sites exhibited above average cover of rockweed. Extremely high levels of recruitment for Silvetia and Pelvetiopsis were documented at many sites. Most sites exhibited marked declines in S. compressa abundances beginning in the early 2000s, with little recovery observed for the rockweed through this year. Barnacle (Chthamalus/Balanus spp.) cover fell below the long-term means at all islands except Anacapa, where barnacle cover was slightly above average. Endocladia muricata abundances remained comparable to the grand mean calculated for previous years at Santa Barbara, Santa Cruz, and Santa Rosa Islands, while cover of the alga decreased slightly below the long-term means at Anacapa and San Miguel Islands. Black abalone (Haliotis cracherodii) abundances at the islands remain less than one percent of 1985 population levels. Zero abalone were found throughout the entire site at Landing Cove on Santa Barbara Island and South Frenchy’s Cove on Anacapa Island. Above average abundances relative to the long-term mean generated from post-1995 data were observed at all but five sites. Juvenile black abalone were seen at all islands except Santa Barbara. Ochre sea star (Pisaster ochraceus) populations crashed in 2014 at all monitoring sites due to Sea Star Wasting Syndrome, an illness characterized by a suite of symptoms that generally result in death. The mortality event was widely considered to be the largest mortality event for marine diseases ever seen. Beginning in June 2013, the disease swiftly and significantly impacted P. ochraceus (among other species of sea stars) populations along the North American Pacific coast from Alaska to Baja California, Mexico. By the beginning of 2014, P. ochraceus abundances had declined by >95% at nearly all Channel Islands long-term intertidal monitoring sites, in addition to numerous other locations along the West Coast. At various times during the past decade, extremely high abundances (~ 500 P. ochraceus) have been observed at multiple sites, and most locations have supported >100 sea stars counted during 30-minute site-wide searches. This year, abundances ranged 0–13 individuals per site with all but one site having fewer than 10 P. ochraceus seen during routine searches. Insufficient numbers of sea stars were seen to accurately estimate the size structure of P. ochraceus populations. Only two juveniles (i.e., <50 mm) were observed at all sites combined. Giant owl limpet densities in 2018–2019 were comparable or slightly above the long-term mean at seven sites. Exceptionally high densities were measured at Northwest-Talcott on Santa Rosa Island, Otter Harbor on San Miguel Island, and Willows Anchorage on Santa Cruz Island. The sizes of L. gigantea this year varied among sites and islands. The smallest L. gigantea were observed at Otter Harbor followed closely by Willows Anchorage and Anacapa Middle West, and the largest were seen at Northwest-Talcott. Temporally, the mean sizes of L. gigantea in 2018–2019 decreased below the long-term mean at each island except Anacapa. Surfgrasses (Phyllospadix spp.) are typically monitored biannually at two sites each on Santa Cruz and Santa Rosa Islands. Beginning in 2015, all transects at each of the monitoring sites were only sampled once per year. At East Point on Santa Rosa Island, the conditions were not conducive to sampling the surfgrass transects, but qualitatively, percent cover of surfgrass appeared to be near 100% on all three transects. Relative to past years, cover of surfgrass increased above the long-term mean at Fraser Cove on Santa Cruz Island, fell slightly below the mean at Trailer on Santa Cruz Island, and remained approximately equivalent to the mean at the two Santa Rosa Island sites. Overall, the abundance and diversity of shorebirds in 2018–2019 at all sites appeared similar to observations made in recent years, with the exception of elevated numbers of brown pelicans (Pelecanus occidentalis) observed at East Point on Santa Rosa Island. Black oystercatchers (Haematopus bachmani) were the most ubiquitous shorebird seen at all sites. Black turnstones (Arenaria melanocephala) were not common relative to past years. Pinniped abundances remained comparable in 2018–2019 to historical counts for all three species that are commonly seen at the islands. Harbor seals (Phoca vitulina) were seen in the vicinity of eight sites this year. As in past years, harbor seals were most abundant at Otter Harbor and Harris Point on San Miguel Island. Elephant seals (Mirounga angustirostris) were seen at six sites during the year, where abundances ranged 1–5 individuals per location. California sea lions (Zalophus californianus) were common at Santa Barbara Island; 117 individuals were observed at Sea Lion Rookery. Sea lion abundances were higher than usual at Harris Point (N = 160) and Otter Harbor (N = 82) on San Miguel Island. Relative to past years, abundances this year were considered average at other locations.
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O'Connor, Nancy J. Completion of Biofouling Research on the Effects of Marine Bacteria on the Attachment of Larval Barnacles. Defense Technical Information Center, 1994. http://dx.doi.org/10.21236/ada283044.
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Management options for a resident Barnacle Goose (Branta leucopsis) population in Flanders. A comparison of different scenarios using population modelling. Instituut voor Natuur- en Bosonderzoek, 2020. http://dx.doi.org/10.21436/inbor.17611440.
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