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| Registros recuperados: 82 | |
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| Acuña Soto, Jesús Alberto. |
| En este trabajo se abordan aspectos de morfología externa, biología y comportamiento de Aceria tulipae, colectada en bulbos de ajo provenientes de bodegas de distintos productores del Estado de Guanajuato, México, durante el ciclo 2004-2005; los ácaros se montaron en líquido de Hoyer para su identificación. Para la morfometría, se analizaron las fotografías tomadas de los ácaros montados mediante Microscopía de Contraste de Fases. Para los estudios morfológicos se procesaron muestras de acuerdo con las técnicas de microscopía electrónica de barrido; así mismo, se realizaron esquemas de la especie mediante dibujos vectoriales. Para obtener el ciclo biológico se colocaron hembras ovígeras en pedazos de hoja, y para el comportamiento las observaciones... |
| Tipo: Tesis |
Palavras-chave: Ajo; Guanajuato; Aceria tulipae; Morfología; Ciclo biológico; Maestría; Entomología y Acarología; Garlic; Guanajuato; Aceria tulipae; Morphology; Life cycle. |
| Ano: 2007 |
URL: http://hdl.handle.net/10521/1306 |
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| Moreira,Daiane C.; Redaelli,Luiza R.; Guidoti,Marcus; Barcellos,Aline. |
| Nymphs and adults of Tingis americana Drake, 1922 were found feeding on leaves of Handroanthus heptaphyllus (Vell.) Mattos and Handroanthus chrysotrichus (Mart. ex A. DC.) Mattos in the Botanic Garden, Porto Alegre, state of Rio Grande do Sul, Brazil. This is the first record of T. americana on these host plants and in the southern Brazil. We aimed to compare the nymphal development on both hosts and to analyze the reproductive parameters on H. heptaphyllus (25 ± 1ºC; 60 ± 10% RH; 16 h photophase). The mean nymphal period (days) was shorter in individuals reared on H. heptaphyllus (12.69 ± 0.076) than on H. chrysotrichus (19.11 ± 0.208) (P < 0.0001), however, nymph viability was similar. On H. heptaphyllus, the mean embryonic period lasted 12.32 ± 0.274... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biology; Life cycle; Handroanthus chrysotrichus; Lace bug. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212013000200015 |
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| Vignet, Caroline; Le Menach, Karyn; Mazurais, David; Lucas, Julie; Perrichon, Prescilla; Le Bihanic, Florane; Devier, Marie-hélène; Lyphout, Laura; Frere, Laura; Begout, Marie-laure; Zambonino-infante, Jose Luis; Budzinski, Helene; Cousin, Xavier. |
| The release of polycyclic aromatic hydrocarbons (PAHs) into the environment has increased very substantially over the last decades leading to high concentrations in sediments of contaminated areas. To evaluate the consequences of long-term chronic exposure to PAHs, zebrafish were exposed, from their first meal at 5 days post fertilisation until they became reproducing adults, to diets spiked with three PAH fractions at three environmentally relevant concentrations with the medium concentration being in the range of 4.6–6.7 μg g−1 for total quantified PAHs including the 16 US-EPA indicator PAHs and alkylated derivatives. The fractions used were representative of PAHs of pyrolytic (PY) origin or of two different oils of differing compositions, a heavy fuel... |
| Tipo: Text |
Palavras-chave: Danio rerio; Life cycle; Polycyclic aromatic hydrocarbon; Heavy oil; Light crude oil; Alkylated PAH; Jaw; Digestion. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00188/29907/28490.pdf |
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| Sauvey, Aurore; Claquin, Pascal; Le Roy, Bertrand; Le Gac, Mickael; Fauchot, Juliette. |
| We used a multi‐strain approach to study the intra‐ and interspecific variability of the growth rates of three Pseudo‐nitzschia species – P. australis, P. fraudulenta, and P. pungens – and of their domoic acid (DA) production. We carried out mating and batch experiments to investigate the respective effects of strain age and cell size, and thus the influence of their life cycle on the physiology of these species. The cell size ‐ life cycle relationship was characteristic of each species. The influence of age and cell size on the intraspecific variability of growth rates suggests that these characteristics should be considered cautiously for the strains used in physiological studies on Pseudo‐nitzschia species. The results from all three species do not... |
| Tipo: Text |
Palavras-chave: Cell size; Domoic acid; Growth; Life cycle; Pseudo-nitzschia strains. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00505/61679/65622.pdf |
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| Farias, Ines; Morales-nin, Beatriz; Lorance, Pascal; Figueiredo, Ivone. |
| The biology, ecology, and dynamics of the deep-sea teleost black scabbardfish in the northeast Atlantic are reviewed. The black scabbardfish is a commercial bathypelagic species found in the NE Atlantic mostly from Iceland to the Canary Islands and Western Sahara, at depths from 800 to 1300 m. The spatial structure of its population is still uncertain, although the existence of one single stock that migrates around the NE Atlantic driven by feeding and reproduction is the most likely hypothesis consistent with available data. This review is based on data from commercial fisheries off the Faroe Islands, Hatton Bank, the west of the British Isles, and Portugal (mainland, Azores, and Madeira) and from Icelandic and Scottish scientific surveys collected... |
| Tipo: Text |
Palavras-chave: Deep-water longline fisheries; Migration; Life cycle; Trichiuridae; Aphanopus carbo; North Atlantic Ocean. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00175/28636/27058.pdf |
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| Koubbi, Philippe; O'Brien, Colleen; Loots, Christophe; Giraldo, Carolina; Smith, Martina; Tavernier, Eric; Vacchi, Marino; Vallet, Carole; Chevallier, Jean; Moteki, Masato. |
| This paper investigates the abundance and distribution of Pleuragramma antarcticum larvae by size class in the Dumont d’Urville Sea from 2004 to 2010. Samples were collected between Dumont d’Urville station and the Mertz Glacier Tongue onboard the RV l’Astrolabe for studying the inter-annual and spatial distribution of fish larvae and the TRV Umitaka Maru for looking at life stages vertical distributions. The seabed depression adjacent to the Mertz Glacier Tongue and in Commonwealth Bay hosted high abundances of small P. antarcticum larvae, while larger larvae were found in lower abundance and further offshore. We found that canyons, sea ice, stability of the water column and temperatures are important features for determining suitable areas for young... |
| Tipo: Text |
Palavras-chave: Pleuragramma antarcticum; East Antarctic shelf; Fish larvae; Life cycle; Inter-annual variations. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00069/17992/15528.pdf |
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| Galgani, Francois; Benyamin, Y; Vanworhmoudt, A; Cecaldi, J. |
| Proteolytic enzymes of hepatopancreas of six species of peneids (Penaeus kerathurus, P. japonicus, P. monodon, P. stylirostris, P. merguiensis and P. vannamei ) have been studied. Some of their physiological variations have been characterised. Increase in acclimation temperature of crustaceans enhances increase of specific activities of proteases. Variations of salinity does not modify specific activities, nor quantities of trypsin, nor electrophoretic patterns of these different proteases. |
| Tipo: Text |
Palavras-chave: Penaeus kerathurus; Penaeidae; Malacostraca; Diets; Growth; Larval development; Life cycle; Acclimation; Environmental effects; Digestive glands; Enzymatic activity; Salinity effects; Temperature effects; Enzymes; Endocrinology; Digestion; Développement larvaire; Croissance; Cycle d'intermue; Carboxypeptidase A and B; Leucine aminopeptidase; Chymotrypsin; Trypsine; Enzymes digestives; Homarus ganmarus; Palaemon serratus; P. vannamei; P. merguiensis; P. stylirostris; P. monodon; P. japonicus; Penaeus keratkurus. |
| Ano: 1983 |
URL: http://archimer.ifremer.fr/doc/1983/acte-1195.pdf |
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| Bouchereau, Jl; Guelorget, O. |
| This article summarizes the latest knowledge on the ecology of three gobies. The authors compile data published by various scientists who carried out their research under different conditions, using a variety of methods for collecting data and processing the results. The relationship between population structure and different environmental conditions was considered for three goby species Pomatoschistus minutus (Pallas, 1770), P. microps (Kroyer, 1838) and Gobius niger Linnaeus, 1758, in different geographical areas, notably the Mediterranean (Gulf of Lions and Adriatic) and cold temperate Atlantic (north of the English Channel) parts. In the three species, the life cycles in the Mediterranean, favoured by the local hydroclimate, are "contracted" (growth is... |
| Tipo: Text |
Palavras-chave: Golfe du Lion; Atlantique; Cycles vitaux; Stratégies d'occupation; Gobiidæ; Gulf of Lions; Atlantic; Life cycle; Occupying strategy; Gobiidae. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00326/43672/43198.pdf |
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| Thamban, Aneesh Panakkool; Kappalli, Sudha; Kottarathil, Helna Ameri; Gopinathan, Anilkumar; Paul, Trilles Jean. |
| Background: Cymothoa frontalis Milne Edward, 1840 is a very poorly described cymothoid, notwithstanding the previous redescription of the female. Pertinently, to date, the host of C. frontalis has not been identified with adequate precision. Most of the descriptions of cymothoids carried out hitherto were based primarily on females, but practically ignoring other life cycle stages. The present paper redescribes the female and describes other life cycle stages of the species C. frontalis to get better precision in their identification. Results: The female phase of C. frontalis is redescribed according to type specimens extant in the NMNH, Paris, and also by the data obtained from live specimens collected during the present study. The general morphology and... |
| Tipo: Text |
Palavras-chave: Cymothoa frontalis; Cymothoidae; Redescription; Description; Prevalence; Life cycle; Strongylura strongylura; India. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00275/38664/73718.pdf |
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| Stoeckel, Solenn; Arnaud-haond, Sophie; Krueger-hadfield, Stacy A; Orive, Maria. |
| Partial clonality is known to affect the genetic composition and evolutionary trajectory of diplontic (single, free-living diploid stage) populations. However, many partially clonal eukaryotes exhibit life cycles in which somatic development occurs in both haploid and diploid individuals (haplodiplontic life cycles). Here, we studied how haplodiplontic life cycles and partial clonality structurally constrain, as immutable parameters, the reshuffling of genetic diversity and its dynamics in populations over generations. We assessed the distribution of common population genetic indices at different proportions of haploids, rates of clonality, mutation rates, and sampling efforts. Our results showed that haplodiplontic life cycles alone in finite populations... |
| Tipo: Text |
Palavras-chave: Mating system; Asexuality; Genetic and genotypic diversity; Life cycle; Linkage disequilibrium; FIS. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00684/79593/82282.pdf |
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| Registros recuperados: 82 | |
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