Academic literature on the topic 'Eng Edale'
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Journal articles on the topic "Eng Edale"
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Bouchereau, Jean-Luc, Virginie Houder, Adam Marques, and José E. Rebelo. "A new distribution record and the reproductive strategy of Pomatoschistus pictus adriaticus (Pisces: Gobiidae) in the Mediterranean Sea." Journal of the Marine Biological Association of the United Kingdom 83, no. 5 (September 19, 2003): 1157–61. http://dx.doi.org/10.1017/s0025315403008427h.
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Specimens and nests of Pomatoschistus pictus adriaticus have been caught for the first time along the French Mediterranean shore (Gulf of Lions). Six types of nests are found on sandy-gravelly bottom at 10 m depth and 25.3 to 27.5 g 1−1 salinity, using in 84.7% of cases, a valve of Cardium edule (3.3≤weight g≤40.6; 507≤surface mm2≤2490). Nest size, egg patch, surface area and nesting fecundity are positively correlated. Nesting fecundity varies between 669 and 4690 eggs. For a similar egg diameter, the egg height is less than that of P. minutus which spawns on the same bottom and localities. Larval length at hatching varies from 1.70 to 2.67 mm.
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Jensen, K. Thomas. "Density-dependent growth in cockles (Cerastoderma edule): evidence from interannual comparisons." Journal of the Marine Biological Association of the United Kingdom 73, no. 2 (May 1993): 333–42. http://dx.doi.org/10.1017/s0025315400032896.
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To examine density-dependent effects on growth in Cerastoderma edule (L.) (Bivalvia), growth rates of individual cockles established by chance at high and low densities on the same intertidal mudflat in two different years (1984 and 1989) were compared. Two-year-old cockles occurring at high densities (>2000 individuals m-2 in 1984) attained mean lengths from 16.1 to 18.8 mm on the lower shore at the end of their third growing season, while low-density cockles (<50 individuals m-2 in 1989) of the same age reached mean lengths in the range of26.5 to 30.3mm. In terms of individual weight the difference between cockles from the two periods was even more striking, as the flesh ash-free dry-weight of a cockle from 1984 constituted only 7% of that from a 1989 cockle. During both periods growth in cockles increased with the duration of tidal submersion, but the interannual growth differences exceeded by far the effect of differences in submersion time.
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Rosidah, Idah, Zainuddin Zainuddin, Kurnia Agustini, Olivia Bunga, and Lestari Pudjiastuti. "Standardisasi Ekstrak Etanol 70% Buah Labu Siam (Sechium edule (Jacq.) Sw.)." Farmasains : Jurnal Ilmiah Ilmu Kefarmasian 7, no. 1 (July 2, 2020): 13–20. http://dx.doi.org/10.22236/farmasains.v7i1.4175.
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Labu siam (Sechium edule (Jacq.) Sw.) merupakan tanaman sayur yang dapat digunakan untuk obat tradisional dan memiliki aktivitas sebagai antikolesterol, antihipertensi, antidiabetes maupun antioksidan. Penelitian ini bertujuan untuk menetapkan mutu ekstrak buah labu siam sebagai bahan baku obat yang berasal dari bahan alam. Standardisasi ekstrak buah labu siam dilakukan terhadap parameter spesifik dan non-spesifik menurut metode standardisasi yang dipersyaratkan. Hasil parameter spesifik ekstrak buah labu siam menunjukkan kadar sari larut air 2,74 ± 0,07%, kadar sari larut etanol 2,75 ± 0,05%, kadar senyawa fenolik 0,36 ± 0,04 mg EAG/g ekstrak dan kadar pektin (bobot equivalen 4.083,51 ± 635,30 mg/eki, kadar metoksi 0,35 ± 0,03% dan kadar galakturonat 2,00 ± 0,19%). Parameter non-spesifik ekstrak buah labu siam menunjukkan kadar air 7,62 ± 0,53%, susut pengeringan 4,49 ± 0,42%, bobot jenis 1,408 ± 0,001 g/ml, abu total 6,33 ± 0,15%, abu tidak larut asam 0,76 ± 0,14%, kadar logam berat As, Cd, Hg dan Pb tidak terdeteksi. Total cemaran mikroba ektrak 7,5 x 103 koloni/g dan angka kapang khamir 20* koloni/g. Berdasarkan data diatas disimpulkan ekstrak etanol 70% buah labu siam memenuhi persyaratan secara umum untuk ekstrak tumbuhan obat.
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Deith, Margaret R. "The Composition of Tidally Deposited Growth Lines in the Shell of the Edible Cockle, Cerastoderma Edule." Journal of the Marine Biological Association of the United Kingdom 65, no. 3 (August 1985): 573–81. http://dx.doi.org/10.1017/s0025315400052425.
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The shells of marine invertebrates grow incrementally (Wilbur, 1972). When a section of shell is observed under the microscope, the increments are often visible, separated by fine lines (Fig. 1). Studies of these phenomena have focused chiefly on the periodicity of increment and growth-line formation, principally because of its geological or archaeological application as a ‘biological clock’ (e.g. Wells, 1963; Koike, 1973).
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Kingsley-Smith, Peter R., Christopher A. Richardson, and Raymond Seed. "Growth and development of the veliger larvae and juveniles of Polinices pulchellus (Gastropoda: Naticidae)." Journal of the Marine Biological Association of the United Kingdom 85, no. 1 (February 2005): 171–74. http://dx.doi.org/10.1017/s0025315405011008h.
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Adult Polinices pulchellus were collected from the field and held in aquaria under ambient conditions. Egg collars laid by P. pulchellus were cultured at 14°C and 20°C and larval development after hatching was documented photographically. Planktotrophic Polinices pulchellus veligers hatched from egg collars cultured at 20°C after nine to ten days and after 14 to 15 days at 14°C. Veligers spent most of their time close to the water surface and began feeding within one hour of hatching. Repeated attempts to raise larvae to metamorphic competency at 14°C were unsuccessful. Morphological changes, most notably in the colour and size of the velum and foot, were observed in larvae raised at 20°C. During the first 25 days of larval development the velum broadened and bifurcated into four velar arms, the distal regions of which acquired a deep red coloration. By day 40 the foot had increased considerably in size and the degree of black pigmentation. By day 45 pediveligers were competent to metamorphose to the juvenile stage. Exposure to sediment from the adult habitat induced metamorphosis, larvae lost their vela and became benthic juveniles. Within three days of metamorphosis, juvenile snails drilled the bivalve Lasaea adansoni (∼2 mm), later drilled Cerastoderma edule (∼4 mm), and displayed cannibalistic behaviour. Larvae survived for ∼6 months in the absence of a suitable settlement cue.
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Choi, I. Y., S. S. Cheong, J. H. Joa, S. E. Cho, and H. D. Shin. "First Report of Powdery Mildew Caused by Podosphaera xanthii on Sechium edule in Korea." Plant Disease 99, no. 1 (January 2015): 162. http://dx.doi.org/10.1094/pdis-10-14-1011-pdn.
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Sechium edule (Jacq.) Sw. (Cucurbitaceae, chayote, mirliton) is native to Mexico and Central America. Several trials have recently been conducted to determine the ability of chayote cultivars to grow under the climatic and soil conditions of South Korea. In April 2013, chayote plants were observed showing typical symptoms of powdery mildew in a glasshouse in Jeju City, Korea. Powdery mildew colonies were circular to irregular, forming white patches on both sides of the leaves. As the disease progressed, entire leaves were covered with white mycelium, followed by leaf withering and premature senescence. The same symptoms were also found on chayote plants in a polyethylene-film-covered greenhouse in Iksan City, Korea, in 2014. Voucher specimens were deposited in the Korea University Herbarium (KUS-F27289, F27422, F28186). Hyphae were flexuous to straight, branched, septate, and 5 to 7 μm wide. Appressoria on the mycelium were nipple-shaped or nearly absent. Conidiophores were straight, 150 to 240 × 10 to 12 μm and produced three to seven immature conidia in chains with a crenate outline. Foot-cells of conidiophores were straight, cylindric, and 52 to 85 μm long. Conidia were hyaline, ellipsoid-ovoid to barrel-shaped, measured 27 to 36 × 16 to 23 μm with a length/width ratio of 1.3 to 2.0, and had distinct fibrosin bodies. Simple to forked germ tubes were produced from the lateral position of conidia. No chasmothecia were found. These structures are typical of the powdery mildew Euoidium anamorph of the genus Podosphaera. Dimensions of foot-cells and conidia were within the ranges provided for P. xanthii (Castagne) U. Braun & Shishkoff, and the length/width ratio of conidia, appressorial characteristics, and conidial germination patterns also conformed to the standard description (2). To confirm the identification, the complete internal transcribed spacer (ITS) region of rDNA of isolate KUS-F27289 was amplified with primers ITS1 and ITS4 and sequenced directly. The resulting 473-bp sequence was deposited in GenBank (Accession No. KM657960). A GenBank BLAST search of the Korean isolate showed 99% similarity with P. xanthii isolates from cucurbitaceous hosts (e.g., AB774155 to AB774158, AB040321, JQ340082, etc.). Pathogenicity was confirmed through inoculation tests by gently pressing a diseased leaf onto young leaves of three asymptomatic, potted chayote plants. Three non-inoculated plants were used as controls. Plants were maintained in a greenhouse at 24 to 34°C. Inoculated leaves started to develop symptoms after 5 days, whereas the control plants remained symptomless. The pathogenicity test was carried out twice with similar results. Powdery mildews of chayote caused by Podosphaera species have been reported in Australia, South Africa, Portugal, India, China, and the United States (1,3,4). To our knowledge, this is the first report of powdery mildew caused by P. xanthii on chayote in Korea. Since chayote production was only recently started on a commercial scale in Korea, powdery mildew infections may pose a serious threat to the safe production of this vegetable. References: (1) P. Baiswar et al. Australas. Plant Dis. Notes 3:160, 2008. (2) U. Braun and R. T. A. Cook. Taxonomic Manual of the Erysiphales (Powdery Mildews), CBS Biodiversity Series No. 11. CBS, Utrecht, 2012. (3) D. F. Farr and A. Y. Rossman. Fungal Databases. Syst. Mycol. Microbiol. Lab. Online publication, ARS, USDA, Retrieved October 4, 2014. (4) R. Singh et al. Plant Dis. 93:1348, 2009.
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Gregorio-Cipriano, R., D. González, R. Félix-Gastélum, and S. Chacón. "Neoerysiphe sechii (Ascomycota: Erysiphales): A new species of powdery mildew found on Sechium edule and Sechium mexicanum (Cucurbitaceae) in Mexico." Botany 98, no. 4 (April 2020): 185–95. http://dx.doi.org/10.1139/cjb-2019-0193.
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A novel species of powdery mildew, Neoerysiphe sechii sp. nov., has been proposed based on host, morphological characteristics, and gene sequences. The new species was found on chayote (Sechium edule) and a wild species, chayotillo (S. mexicanum), in Veracruz, Mexico. This novel species was identified as a member of Neoerysiphe, based on the morphological characteristics of the anamorph: catenescent conidia, lobed appressoria, and Striatoidium-type conidia. No teleomorph was observed. Neoerysiphe sechii is distinguished by foot cells that are frequently cylindrical with a slight widening at the base, a feature not observed previously in other species in the genus. An Erysiphales-specific primer was designed for the 5′ end of the ITS region of the nuclear rDNA. Independent and concatenated phylogenetic analyses with our rDNA sequences and sequences available in GenBank for Neoerysiphe spp. confirmed that the powdery mildew specimens found in Sechium spp. form an independent and strongly supported lineage. This is the first report of a Neoerysiphe species causing powdery mildew on members of Cucurbitaceae, and it is the second species reported from Mexico after N. cumminsiana. Neoerysiphe sechii is found on cultivated and endemic hosts in Mexico, suggesting that the fungus itself may be endemic.
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Philippart, Catharina J. M., Kiki E. M. Dethmers, Johan van der Molen, and André Seinen. "Ecological Engineering for the Optimisation of the Land-Based Marine Aquaculture of Coastal Shellfish." International Journal of Environmental Research and Public Health 17, no. 19 (October 2, 2020): 7224. http://dx.doi.org/10.3390/ijerph17197224.
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Whilst the demand for nutritious and sustainable seafood is increasing, fishing yields are declining due to overfishing and climate change. The inshore aquaculture of marine molluscs—e.g., the suspension-feeding cockle Cerastoderma edule for NW Europe—might be an alternative practice if cost-effective and nature-based technology enhances growth and survival. Our inshore experiments revealed that increasing the seawater residence time resulted in improved water quality. The reduction in sediment loads and stimulation of pelagic microalgal growth resulted in enhanced shell growth and meat content of the wild cockles seeded into the system. Shorter residence times resulted also in an increase in benthic microalgae, but the concurrent increase in silt content of the sediment appeared to hamper effective filtration by cockles. The growth conditions (with respect to the water and sediment quality) for the inshore cultivation of cockles can indeed be improved by means of ecological engineering, suggesting that the inshore aquaculture of marine shellfish can provide sustainable food and income for coastal communities, in particular when the shellfish farms are located in low-lying salinized coastal areas where common agriculture practices are no longer profitable. The involvement of the shellfishery industry was and will be crucial for studying and understanding the complex practice of cockle cultivation.
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Sudargo, Toto, Bianda Aulia, Atika Anif Prameswari, Alim Isnansetyo, Indun Dewi Puspita, Siti Ari Budiyanti, Rahadyana Muslichah, Tira Aristasari, Sheila Rosmala Putri, and Khusnul Alfionita. "Effect of Administration of CHAGURO Made of Chayote (Sechium edule) and Tuna (Thunnus sp.) on Rats Induced with Streptozotocin-Nicotinamide and a High-Fat Diet." Current Research in Nutrition and Food Science Journal 9, no. 1 (April 27, 2021): 258–66. http://dx.doi.org/10.12944/crnfsj.9.1.24.
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This study was conducted to develop Chaguro, a low-cost supplementary food made of chayote (Sechium edule (Jacq.) Swartz) and tuna fish (Thunnus sp.), for diabetes and dyslipidemia diet therapy. In order to find a formula with effective hypoglycaemic and antidyslipidemic properties, dried tuna and chayote were mixed at different ratios: F1 (75% tuna, 25% chayote), F2 (50% tuna, 50% chayote), and F3 (25% tuna, 75% chayote). Thirty male Sprague Dawley rats were assigned into healthy control group or groups induced with streptozotocin-nicotinamide and a high-fat diet. Chaguro was administered 2.7 g/ kgBW/ day using a gavage for 28 days. The administration of all Chaguro formulas improved blood markers compared to the negative control group (p < 0.001). Chaguro F2 lowered fasting blood glucose (97.07±1.18 vs 266.31±5.31), total cholesterol (113.59±2.22 vs 208.78±4.31), triglycerides (89.93±2.51 vs 142.35±2.83), LDL-c (33.87±1.87 vs 87.85±3.34) and increased HDL-c (69,08±1,85 vs 23,91±1,64) level the most compared to the negative control group (p < 0.001). Streptozotocin-induced weight loss was also prevented in all diabetic rats fed with Chaguro, with the bodyweight being similar to that of healthy controls at the end of the intervention (p < 0.001). This study found that Chaguro may be a potential food product to help lower blood glucose and improve lipid profile in diabetes and dyslipidemia.
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Cleveringa, P., T. Meijer, R. J. W. van Leeuwen, H. de Wolf, R. Pouwer, T. Lissenberg, and A. W. Burger. "The Eemian stratotype locality at Amersfoort in the central Netherlands: a re-evaluation of old and new data." Netherlands Journal of Geosciences 79, no. 2-3 (August 2000): 197–216. http://dx.doi.org/10.1017/s0016774600023659.
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AbstractIn order to obtain a better understanding of the infilling of the Saalian glacial basins during the Eemian, particularly following the recent research in the Amsterdam Basin (Terminal borehole), it was necessary to re-investigate the type locality of the Eemian at Amersfoort. Both published and unpublished data from various biota (diatoms, foraminifers, molluscs, ostracods, pollen) provide new information on the changing sedimentary environments during the Eemian. Although the organic and clastic sediments of the infilling represent nearly all the pollen zones, the sedimentary sequence at Amersfoort is discontinuous: four breaks at least are recognised at the type locality.The successive sedimentary environments and the breaks in the record are linked with the transgression of the Eemian sea, the topographic position at the margin of an ice-pushed ridge, and the changes in hydrodynamic conditions. Local conditions, such as a sandy sea bed, shallow water and a reduced water exchange near the North Sea margin, influenced the salinity of the basin. Rib counts of Cerastoderma edule shells indicate a higher salinity at the end of the Taxus (E4b) and the beginning of the Carpinus (E5) zones than that present in the modern North Sea. Local conditions were responsible for the higher salinity following the climate optimum.During the Abies phase (the later part of regional pollen zone E5), the sea level had already fallen. The change from eu-trophic peat growth (with Alnus and Salix) to an oligotrophic Ericaceae/Sphagnum community at the end of the Eemian resulted from the change from a marine to a fresh-water environment, probably coherent with a deterioration of the climate.
Dissertations / Theses on the topic "Eng Edale"
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Whitton, Timothy A. "Processes controlling spatial and temporal variations in cockle Cerastoderma edule (L.) abundance and distribution." Thesis, Bangor University, 2013. https://research.bangor.ac.uk/portal/en/theses/processes-controlling-spatial-and-temporal-variations-in-cockle-cerastoderma-edule-l-abundance-and-distribution(cf52a82c-4443-4205-b0df-b2c12aa9463e).html.
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The common cockle Cerastoderma edule (L.) is an ecologically and commercially important species in Wales, and other North West European tidal flats and estuaries. Cockle populations often exhibit high inter-annual variability in recruitment strength but also spatially within population distributions. The post-larval stage is a critical period for determining recruitment strength in cockle populations, and likely to be a key period for creating spatial structure. This thesis aimed to record and quantify the spatio-temporal changes in post-larval cockle (newly settled O-group individuals) density over large and small spatial scales, and investigate what processes may create or maintain these patterns. I found that over large scales (100s of metres) the initial settlement can be restricted to certain areas of the shore with high densities, but as time progresses, post-settlement redistributions move post-larvae across the shore. These redistributions recorded over two years extended post-larvae from initial low shore settlements into the mid and high shore, and resulted in a distribution similar to that of the adult population. Over small spatial scales (10s of metres) highly patchy and intense initial settlement of C. edule was also observed. Over time the spatial distribution of post-larvae became more dispersed resulting in significant positive correlation with the adult population post-settlement. To understand what is driving changes in density, experiments were conducted in the field and laboratory. Lugworms and adult cockles can be very abundant and disturb surface sediment during feeding and movements, which may kill or negatively affect C. edule post-larvae. Lugworms and adult cockles were excluded from areas of sediment in the field and the effect on post-larval densities over time investigated. Removing lugworms increased the densities of post-larvae but removing adult cockles decreased the post-larval density. Laboratory experiments looking at the possible role of lugworms and adults cockles causing direct mortality or increasing benthic and pelagic migrations showed no evidence that these were producing the results seen from the field experiment. I also tested if patchiness of post-larval cockles, compared to a uniform distribution, was beneficial for survival under predation from juvenile shore crabs Carcinus maenas, which experience a negative effect of interference competition on their foraging efficiency. Due to the behaviour of 'take away foraging' in the juvenile shore crabs, C. edule post-larvae still had higher mortality when aggregated. It is concluded in this thesis that spatial distribution and structure of post-larval C. edule change significantly during the postsettlement period, over large and small scales, and that macrofaunal interactions and predation may be a significant factor in producing these observations.
Book chapters on the topic "Eng Edale"
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Moorthy, S. N., M. S. Sajeev, R. P. K. Ambrose, and R. J. Anish. "Other starches." In Tropical tuber starches: structural and functional characteristics, 159–76. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781786394811.0159.
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Abstract This chapter discusses the extraction, physiochemical (chemical composition, amylose and amylopectin content), structural (granular morphology, X-ray diffraction pattern, starch crystallinity, and amylose and amylopectin structure), functional (swelling pattern, solubility, viscosity, rheological properties and retrogradation) and thermal properties, and digestibility of starches from minor tuber crops (e.g., arrowroot, Curcuma spp., Canna edulis [C. indica], Chinese water chestnut [Eleocharis dulcis], chayote [Sechium edule], Pachyrhizus ahipa, Oxalis tuberosa, Arracacia xanthorrhiza, Lilium spp.).