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Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses
No full textSchillo, Dorothee, Wipfler, Benjamin, Undap, Nani, Papu, Adelfia, Böhringer, Nils, Eisenbarth, Jan-Hendrik, Kaligis, Fontje, Bara, Robert, Schäberle, Till F., König, Gabriele M., Wägele, Heike (2019): Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses. Zootaxa 4652 (2): 265-295, DOI: 10.11646/zootaxa.4652.2.
Nudibranchia Cuvier 1817
No full textNudibranchia Cuvier, 1817 Cladobranchia Willan & Morton, 1984Published as part of <i>Schillo, Dorothee, Wipfler, Benjamin, Undap, Nani, Papu, Adelfia, Böhringer, Nils, Eisenbarth, Jan-Hendrik, Kaligis, Fontje, Bara, Robert, Schäberle, Till F., König, Gabriele M. & Wägele, Heike, 2019, Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses, pp. 265-295 in Zootaxa 4652 (2)</i> on page 268, DOI: 10.11646/zootaxa.4652.2.3, <a href="http://zenodo.org/record/3363765">http://zenodo.org/record/3363765</a>
FIGURE 9 in Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses
No full textFIGURE 9. Moridilla jobeli sp. nov.: Genital system; A, C–F based on paratype SRU20190001; B based on paratype MZB. Gst.21.593. (A) Gonad of juvenile specimen with exclusively spermatogonians. (B) Ovotestis of adult animal with oogonians peripheral and spermatogonians centrally (µ-CT). (C) Several cross sections of ampulla. (D) Vas deferens with prostatic part (arrow) and penis in penial sheath (arrowhead). (E) Receptaculum seminis. (F) Cross section of genitalia. Abbrevations: am, ampulla; rs, receptaculum seminis; ng, nidamental gland.Published as part of Schillo, Dorothee, Wipfler, Benjamin, Undap, Nani, Papu, Adelfia, Böhringer, Nils, Eisenbarth, Jan-Hendrik, Kaligis, Fontje, Bara, Robert, Schäberle, Till F., König, Gabriele M. & Wägele, Heike, 2019, Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses, pp. 265-295 in Zootaxa 4652 (2) on page 284, DOI: 10.11646/zootaxa.4652.2.3, http://zenodo.org/record/336376
Moridilla Bergh 1888
No full textGenus <i>Moridilla</i> Bergh, 1888 <p> <b>Type species.</b> <i>Moridilla brockii</i> Bergh, 1888</p> <p> <b>Diagnosis.</b> The genus <i>Moridilla</i> is characterized by the following features: Body elongate, slender, tapering at posterior end of foot. Foot narrow; foot corners tentacular elongated. Rhinophores side by side, papillate. Tentacles elongate. Anterior cerata in slanted rows with innermost dorsal cerata unique in shape, significantly elongated, in coiled position, differently coloured; get fully extended in length and waved about forcefully when animal feels threatened. Jaw medium sized, masticatory border strong, slightly curved with single row of denticles. Radula uniseriate. Penis unarmed. Semi-serial receptaculum seminis (Bergh 1888; Edmunds 1970).</p>Published as part of <i>Schillo, Dorothee, Wipfler, Benjamin, Undap, Nani, Papu, Adelfia, Böhringer, Nils, Eisenbarth, Jan-Hendrik, Kaligis, Fontje, Bara, Robert, Schäberle, Till F., König, Gabriele M. & Wägele, Heike, 2019, Description of a new Moridilla species from North Sulawesi, Indonesia (Mollusca: Nudibranchia: Aeolidioidea) - based on MicroCT, histological and molecular analyses, pp. 265-295 in Zootaxa 4652 (2)</i> on page 268, DOI: 10.11646/zootaxa.4652.2.3, <a href="http://zenodo.org/record/3363765">http://zenodo.org/record/3363765</a>
Biodiversity of Marine Heterobranchia (Gastropoda) around North Sulawesi Indonesia
Get PDFNorth Sulawesi province is one of the most potential areas in terms of natural marine resources. In North Sulawesi there are many interesting tourist places with high marine biodiversity and many objects are currently under development, including Bunaken National Marine Park (BNP), Lembeh strait, in the island of Sangihe, and Bangka archipelago.
Coastal areas of North Sulawesi are considered as the most diverse habitats in the world with high species diversity in coral reefs, but also in adjacent sea grass beds and mangroves. The high diversity also includes marine heterobranch sea slugs, which are known by an extremely large number of species of up to probably 2000, with many undescribed ones.
My study in Sangihe Island is the first survey of marine heterobranch around this island and included in the collection 23 species, with Phyllidiidae show the highest dominance (Chapter 3). The amount of species is far lower than in the studies around BNP, or the Bangka Archipelago.
The Chromodorididae is a large and colourful family of nudibranch sea slugs distributed across the tropical and temperate world’s oceans. These sea slugs are known by many divers because of their beauty and by many pharmacists because of their high diversity in natural compounds.
For studying the Chromodorididae, 375 specimens were collected around North Sulawesi in 2015, 2016 and 2017. Chapter 4 and chapter 5 focus on this family Chromodorididae. The phylogenetic hypothesis based on two mitochondrial genes, CO1 and 16S, is the only subsequent study after the first study published in 2012 by Johnson & Gosliner. The major result of my analyses is the confirmation of the results obtained by Johnson & Gosliner 2012 at that time.
Chromodoris is a genus of colourful nudibranchs that feed on sponges and is found across the Indo-Pacific. Chapter 5 in this study focuses on these species of the genus Chromodoris (i.e. C. annae, C. dianae, C. willani, C. lochi) of which hundreds of specimens were collected. The results about Chromodoris species clearly show wide spread cryptic speciation
The results with regard to water quality, indicate that all sampling points are within the range of normal values and no specific pollution can be seen (Chapter 6)
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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