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Journal articles on the topic 'Dinophilus'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

David, Kyle T., and Kenneth M. Halanych. "Mitochondrial genome of Dinophilus gyrociliatus (Annelida: Dinophilidae)." Mitochondrial DNA Part B 2, no. 2 (November 25, 2017): 831–32. http://dx.doi.org/10.1080/23802359.2017.1407704.

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2

Jennings, J. B., and S. R. Gelder. "Feeding and digestion in Dinophilus gyrociliatus (Annelida: Archiannelida)." Journal of Zoology 158, no. 4 (August 20, 2009): 441–51. http://dx.doi.org/10.1111/j.1469-7998.1969.tb02161.x.

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3

Simonini, R., F. Molinari, A. M. Pagliai, I. Ansaloni, and D. Prevedelli. "Karyotype and sex determination in Dinophilus gyrociliatus (Polychaeta: Dinophilidae)." Marine Biology 142, no. 3 (December 19, 2002): 441–45. http://dx.doi.org/10.1007/s00227-002-0979-2.

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4

Mauri, Marina, Roberto Simonini, and Elena Baraldi. "DEMOGRAPHIC RESPONSES OF THE POLYCHAETE DINOPHILUS GYROCILIATUS TO CHROMIUM EXPOSURE." Environmental Toxicology and Chemistry 21, no. 9 (2002): 1903. http://dx.doi.org/10.1897/1551-5028(2002)021<1903:drotpd>2.0.co;2.

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5

Oster, Ulrich. "Microfilament-Supported Macrovilli in the Hindgut of the Polychaete Dinophilusgyrociliatus." Zeitschrift für Naturforschung C 41, no. 11-12 (December 1, 1986): 1139–44. http://dx.doi.org/10.1515/znc-1986-11-1234.

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Abstract Large macrovilli of 7.7 μm maximal length and a diameter of 0.4 μm with several hundred cytochalasin B-sensitive 6 nm microfilaments are found as bordering lateral structures in the ciliary groove of the hindgut of Dinophilus gyrociliatus. The microfilament bundle, accompanied by microtubules, extends with its tapering rootlets to the base of the cells. Another cell type in the middle of the groove bears the cilia and equally broad, but shorter macrovilli with a cytochalasin-sensitive microfilament core.

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6

Prevedelli, D., and R. Simonini. "Relationship between body size and population growth rate in two opportunistic polychaetes." Journal of the Marine Biological Association of the United Kingdom 82, no. 3 (June 2002): 403–8. http://dx.doi.org/10.1017/s0025315402005647.

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The relationship between body size and population growth rate λ has been studied in two species of opportunistic polychaetes, Dinophilus gyrociliatus and Ophryotrocha labronica, which colonize harbour environments. These species exhibit a semi-continuous iteroparous reproductive strategy, are phylogenetically closely-related but differ in body size and in some aspects of their sexuality. Ophryotrocha labronica is about 4 mm in body length, displays only slight sexual dimorphism and its sex ratio is biased towards the female sex in the ratio 2:1. Dinophilus gyrociliatus is about 1 mm in length, the males are extremely small and the sex ratio is strongly biased (3:1) in favour of the females. In spite of the considerable differences in all traits of their life histories and in many demographic parameters, the growth rates of the two populations are very similar. The analyses carried out have shown that the rapid attainment of sexual maturity of D. gyrociliatus gives it an advantage that offsets the greater fecundity of O. labronica. It is very likely that the reproductive peculiarities of D. gyrociliatus help to raise the population growth rates. The ‘saving’ on the male sex achieved both by the shift of the sex ratio in favour of the females and by the reduction in the males' body size would appear to enable D. gyrociliatus to grow at the same rate as O. labronica, a larger and more fecund species.

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7

Simonini, R., and D. Prevedelli. "Effects of temperature on two Mediterranean populations of Dinophilus gyrociliatus (Polychaeta: Dinophilidae)." Journal of Experimental Marine Biology and Ecology 291, no. 1 (June 2003): 79–93. http://dx.doi.org/10.1016/s0022-0981(03)00099-6.

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8

Simonini, R., and D. Prevedelli. "Effects of temperature on two Mediterranean population of Dinophilus gyrociliatus (Polychaeta: Dinophilidae)." Journal of Experimental Marine Biology and Ecology 291, no. 1 (June 2003): 95–110. http://dx.doi.org/10.1016/s0022-0981(03)00100-x.

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9

D., Prevedelli, and Simonini R. "Effects of diet and laboratory rearing on demography of Dinophilus gyrociliatus (Polychaeta: Dinophilidae)." Marine Biology 139, no. 5 (November 1, 2001): 929–35. http://dx.doi.org/10.1007/s002270100644.

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10

Lisitskaya, E. V., and N. A. Boltachova. "The first finding of Dinophilus gyrociliatus O. Schmidt, 1857 (Annelida, Polychaeta, Dinophilidae) at the Black Sea coast of Crimea." Marine Biological Journal 1, no. 2 (June 24, 2016): 39–42. http://dx.doi.org/10.21072/mbj.2016.01.2.04.

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The first finding of the polychaete Dinophilus gyrociliatus O. Schmidt, 1857 on the coast of Crimea is reported. The species occurred in 2015 in the waters of Sevastopol (Kruglaya Bay) at the depth of 3–5 m. This species is characterized by the absence of pigmentation, by the presence of one ciliary ring per body segment and by extreme sexual dimorphism. Reproduction of D. gyrociliatus were investigated in the laboratory. Females released cocoons containing from 3 to 10 eggs. Eggs development took 5 days at 18.0–19.5 ℃. The larvae of two types hatch from the cocoons: large females with a length of 500–600 μm and a width of 150–175 μm and small, rudimentarymales resembling trochophore with a diameter of about 100 μm.

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11

Mauri, Marina, Elena Baraldi, and Roberto Simonini. "Effects of zinc exposure on the polychaete Dinophilus gyrociliatus: a life-table response experiment." Aquatic Toxicology 65, no. 1 (October 2003): 93–100. http://dx.doi.org/10.1016/s0166-445x(03)00109-7.

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12

Prevedelli, D., and R. Zunarelli Vandini. "Survival, fecundity and sex ratio of Dinophilus gyrociliatus (Polychaeta: Dinophilidae) under different dietary conditions." Marine Biology 133, no. 2 (March 9, 1999): 231–36. http://dx.doi.org/10.1007/s002270050462.

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13

Carr, Robert Scott, Mark D. Curran, and Michael Mazurkiewicz. "EVALUATION OF THE ARCHIANNELID DINOPHILUS GYROCILIATUS FOR USE IN SHORT-TERM LIFE-CYCLE TOXICITY TESTS." Environmental Toxicology and Chemistry 5, no. 7 (1986): 703. http://dx.doi.org/10.1897/1552-8618(1986)5[703:eotadg]2.0.co;2.

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14

REISH, DONALD J., KARIN DE CALLIBUS, JESSICA DEWAR, and CHERYL BUBE. "Reproductive longevity in two species of polychaetous annelids." Zoosymposia 2, no. 1 (August 31, 2009): 391–95. http://dx.doi.org/10.11646/zoosymposia.2.1.27.

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Polychaetes reproduce many different ways. Regardless of the method of reproduction very little is known on how long an individual, which reproduces multiple times, can live. In attempt to answer this question two species of laboratory reared polychaetes, Neanthes arenaceodentata and Dinophilus gyrociliatus, were selected for this study. The female N. arenaceodentata lays her eggs in a tube, then dies. The male incubates the embryos for 21–25 days and is capable of reproducing again. One male spawned nine times, but the eggs were not fertilized the eighth and ninth time. He lived 13 months. D. gyrociliatus is a minute species which lays two sizes of eggs within a capsule. The smaller ovum develops into a male, fertilizes the larger sized female ova within the capsule, and then dies. The maximum number of capsules and female ova occurred during the first three egg layings then decreased. The oldest worm reproduced 11 times and lived 63 days. Morphological changes with age were noted in both species.

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15

Fofanova, E. G., L. P. Nezlin, and E. E. Voronezhskaya. "Ciliary and nervous structures in juvenile females of the annelid Dinophilus gyrociliatus (O. Schmidt, 1848) (Annelida: Polychaeta)." Russian Journal of Marine Biology 40, no. 1 (January 2014): 43–52. http://dx.doi.org/10.1134/s1063074014010040.

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16

Carr, Robert Scott, John W. Williams, and Carlos T. B. Fragata. "Development and evaluation of a novel marine sediment pore water toxicity test with the polychaete dinophilus gyrociliatus." Environmental Toxicology and Chemistry 8, no. 6 (June 1989): 533–43. http://dx.doi.org/10.1002/etc.5620080610.

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17

Fofanova, E. G., T. D. Mayorova, and E. E. Voronezhskaya. "Paradoxical effect of serotonin on ciliary locomotion of the adult archiannelid worms Dinophilus gyrociliatus and D. taeniatus (Annelida: Polychaeta)." Invertebrate Zoology 14, no. 1 (August 2017): 114–20. http://dx.doi.org/10.15298/invertzool.14.2.03.

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18

Jimi, Naoto, Takuya Minokawa, Toru Miura, and Hiroshi Kajihara. "Meiobenthic Polychaete Dinophilus sp. cf. gyrociliatus (Annelida: Dinophilidae) from Japan with SEM Observation and DNA Barcodes." Species Diversity 25, no. 2 (September 18, 2020): 213–18. http://dx.doi.org/10.12782/specdiv.25.213.

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19

Marcheselli, Marco, Francesco Conzo, Marina Mauri, and Roberto Simonini. "Novel antifouling agent—Zinc pyrithione: Short- and long-term effects on survival and reproduction of the marine polychaete Dinophilus gyrociliatus." Aquatic Toxicology 98, no. 2 (June 2010): 204–10. http://dx.doi.org/10.1016/j.aquatox.2010.02.010.

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20

Simonini, R., M. Orlandi, and M. Abbate. "Is the toxic dinoflagellate Ostreopsis cf. ovata harmful to Mediterranean benthic invertebrates? Evidences from ecotoxicological tests with the polychaete Dinophilus gyrociliatus." Marine Environmental Research 72, no. 4 (October 2011): 230–33. http://dx.doi.org/10.1016/j.marenvres.2011.08.009.

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21

Prevedelli, D., and R. Simonini. "Effects of salinity and two food regimes on survival, fecundity and sex ratio in two groups of Dinophilus gyrociliatus (Polychaeta: Dinophilidae)." Marine Biology 137, no. 1 (August 18, 2000): 23–29. http://dx.doi.org/10.1007/s002270000327.

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22

Riser, Nathan W. "Description of a New Species of Dinophilid Polychaete, with Observations on Other Dinophilids and Interstitial Polychaetes in New England." Northeastern Naturalist 6, no. 3 (1999): 211. http://dx.doi.org/10.2307/3858595.

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23

Rovira Forcada, Simón Juan. "Observaciones sobre los dinoflagelados (Pyrrhophyta) de las costas de Castellón (España)." Acta Botanica Malacitana 16 (December 1, 1991): 31–42. http://dx.doi.org/10.24310/abm.v16i.9129.

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En este trabajo se presentan 27 especies de dinoflagelados (Pyrrhophyta), procedentes de muestreos realizados durante el otoño de 1989, en la zona nerítica del Mediterráneo frente al puerto de Castellón (U.T.M. 31S BE451293). Se comentan algunas características morfométricas de especies pertenecientes a los géneros: Prorocentrum, Amphisolenia, Dinophisis, Ornithocercus, Peridinium, Ceratocorys y Ceratium. La especie Dinophisis schuetti Murray et Whitting, 1899, se cita por primera vez para esta costa.

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24

Müller, Monika C. M., and Wilfried Westheide. "Comparative analysis of the nervous systems in presumptive progenetic dinophilid and dorvilleid polychaetes (Annelida) by immunohistochemistry and cLSM." Acta Zoologica 83, no. 1 (January 2002): 33–48. http://dx.doi.org/10.1046/j.1463-6395.2002.00096.x.

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25

Kerbl, Alexandra, Emilie Winther Tolstrup, and Katrine Worsaae. "Nerves innervating copulatory organs show common FMRFamide, FVRIamide, MIP and serotonin immunoreactivity patterns across Dinophilidae (Annelida) indicating their conserved role in copulatory behaviour." BMC Zoology 4, no. 1 (October 25, 2019). http://dx.doi.org/10.1186/s40850-019-0045-x.

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Abstract Background Males of the microscopic annelid family Dinophilidae use their prominent glandomuscular copulatory organ (penis) to enzymatically dissolve the female’s epidermis and thereafter inject sperm. In order to test for putative conserved copulatory structures and neural orchestration across three dinophilid species, we reconstructed the reproductive myo- and neuroanatomy and mapped immunoreactivity patterns against two specific neurotransmitter markers with reported roles in invertebrate male mating behaviour (FVRIamide, MIP) and three general neural markers (acetylated α-tubulin, serotonin, FMRFamide). Results Seminal vesicles (one or two pairs), surrounded by a thin layer of longitudinal and circular muscles and innervated by neurites, are found between testes and copulatory organ in the larger males of Dinophilus vorticoides and Trilobodrilus axi, but are missing in the only 0.05 mm long D. gyrociliatus dwarf males. The midventral copulatory organ is in all species composed of an outer muscular penis sheath and an inner penis cone. Neurites encircle the organ equatorially, either as a ring-shaped circumpenial fibre mass or as dorsal and ventral commissures, which are connected to the ventrolateral nerve cords. All three examined dinophilids show similar immunoreactivity patterns against serotonin, FMRFamide, and FVRIamide in the neurons surrounding the penis, supporting the hypotheses about the general involvement of these neurotransmitters in copulatory behaviour in dinophilids. Immunoreactivity against MIP is restricted to the circumpenial fibre mass in D. gyrociliatus and commissures around the penis in T. axi (but not found in D. vorticoides), indicating its role in controlling the copulatory organ. Conclusions The overall myo- and neuroanatomy of the reproductive organs is rather similar in the three studied species, suggesting a common ancestry of the unpaired glandomuscular copulatory organ and its innervation in Dinophilidae. This is furthermore supported by the similar immunoreactivity patterns against the tested neurotransmitters around the penis. Smaller differences in the immunoreactivity patterns around the seminal vesicles and spermioducts might account for additional, individual traits. We thus show morphological support for the putatively conserved role of FMRFamide, FVRIamide, MIP and serotonin in dinophilid copulatory behaviour.

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26

Kerbl, Alexandra, Elizaveta G. Fofanova, Tatiana D. Mayorova, Elena E. Voronezhskaya, and Katrine Worsaae. "Comparison of neuromuscular development in two dinophilid species (Annelida) suggests progenetic origin of Dinophilus gyrociliatus." Frontiers in Zoology 13, no. 1 (November 8, 2016). http://dx.doi.org/10.1186/s12983-016-0181-x.

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27

Kerbl, Alexandra, José M. Martín-Durán, Katrine Worsaae, and Andreas Hejnol. "Molecular regionalization in the compact brain of the meiofaunal annelid Dinophilus gyrociliatus (Dinophilidae)." EvoDevo 7, no. 1 (August 30, 2016). http://dx.doi.org/10.1186/s13227-016-0058-2.

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28

Worsaae, Katrine, Alexandra Kerbl, Áki Vang, and Brett C. Gonzalez. "Broad North Atlantic distribution of a meiobenthic annelid – against all odds." Scientific Reports 9, no. 1 (October 29, 2019). http://dx.doi.org/10.1038/s41598-019-51765-x.

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Abstract DNA barcoding and population genetic studies have revealed an unforeseen hidden diversity of cryptic species among microscopic marine benthos, otherwise exhibiting highly similar and simple morphologies. This has led to a paradigm shift, rejecting cosmopolitism of marine meiofauna until genetically proven and challenging the “Everything is Everywhere, but the environment selects” hypothesis that claims ubiquitous distribution of microscopic organisms. With phylogenetic and species delimitation analyses of worldwide genetic samples of the meiofaunal family Dinophilidae (Annelida) we here resolve three genera within the family and showcase an exceptionally broad, boreal, North Atlantic distribution of a single microscopic marine species with no obvious means of dispersal besides vicariance. With its endobenthic lifestyle, small size, limited migratory powers and lack of pelagic larvae, the broad distribution of Dinophilus vorticoides seems to constitute a “meiofaunal paradox”. This species feasts in the biofilm among sand grains, but also on macroalgae and ice within which it can likely survive long-distance rafting dispersal due to its varying lifecycle stages; eggs encapsulated in cocoons and dormant encystment stages. Though often neglected and possibly underestimated among marine microscopic species, dormancy may be a highly significant factor for explaining wide distribution patterns and a key to solving this meiofaunal paradox.

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29

Ryabushko, V. I., S. V. Shchurov, N. P. Kovrigina, and M. A. Popov. "Hydrological, Hydrochemical and Hydrobiological Studies of Lake Donuzlav (Western Crimea, Black Sea) Based on the Results of Expeditions in 2018." Ekologicheskaya bezopasnost' pribrezhnoy i shel'fovoy zon morya, no. 2 (June 2021). http://dx.doi.org/10.22449/2413-5577-2021-2-80-93.

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The ecosystem of unique Lake Donuzlav has been under significant anthropogenic pressure over a long period. Therefore, to assess the long-term changes occurring in the lake, regular monitoring studies are required. In June and October 2018, complex hydrological, hydrochemical and hydrobiological studies were carried out in the lake water area. Temperature, salinity, pH, dissolved oxygen content, biochemical oxygen demand on the fifth day (BOD5), permanganate oxidizability, concentration of silicon, mineral and organic forms of nitrogen and phosphorus, abundance and biomass of phytoplankton were determined by standard methods. It is shown that the thermohaline structure of waters directly affects the distribution of hydrochemical and hydrobiological indicators. In shallow water, a low oxygen content was recorded due to significant heating and poor water exchange, but no oxygen deficiency was found. Mussel and oyster farms and sewage have a significant impact on the ecological state of the lake. Especially high values of BOD5, oxidizability, maximum concentrations of organic forms of nitrogen and phosphorus were noted in these places. It was found that the biomass of phytoplankton increases and the species diversity decreases with distance from the sea to the apex part of the lake. Potentially toxic alga Dinophisis sacculus is found in small quantities, which does not affect the nutritional value of the molluscs. To assess the long-term changes in the phytoplankton community and its food reserves, regular monitoring studies of Lake Donuzlav are required in different seasons.

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30

BURKHOLDER, T. P., and P. L. FUCHS. "ChemInform Abstract: Synthesis via Vinyl Sulfones. Part 27. Total Synthesis of dl-Cephalotaxine. The First Example of an Intramolecular 4 + 2 Cycloaddition Where the Dinophile Has Been Delivered from the Face Opposite to the Tethering Moiety." ChemInform 19, no. 30 (July 26, 1988). http://dx.doi.org/10.1002/chin.198830316.

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