Academic literature on the topic 'Heterobranchs'

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Journal articles on the topic "Heterobranchs"

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Evertsen, Jussi, and Torkild Bakken. "Heterobranchia (Mollusca, Gastropoda) from northern Norway, with notes on ecology and distribution." Fauna norvegica 22 (October 3, 2024): 15–22. http://dx.doi.org/10.5324/fn.v22i0.5985.

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During a diving expedition through northern Norway, a total of 25 heterobranchiate taxa were collected, and additional data on distribution and ecology were given. Cumanotus beaumonti and Flabellina borealis are recorded for the first time since Odhner (1907), (1922) on the Norwegian coast, and the distribution of eight heterobranch taxa were re-evaluated. By using SCUBA diving as a sampling method, it is proved that the diversity and distribution of heterobranchs is poorly known in northern Norwegian waters, as the results show that large quantities of specimens, as well as a significant numb
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Avila, Conxita. "Terpenoids in Marine Heterobranch Molluscs." Marine Drugs 18, no. 3 (2020): 162. http://dx.doi.org/10.3390/md18030162.

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Heterobranch molluscs are rich in natural products. As other marine organisms, these gastropods are still quite unexplored, but they provide a stunning arsenal of compounds with interesting activities. Among their natural products, terpenoids are particularly abundant and diverse, including monoterpenoids, sesquiterpenoids, diterpenoids, sesterterpenoids, triterpenoids, tetraterpenoids, and steroids. This review evaluates the different kinds of terpenoids found in heterobranchs and reports on their bioactivity. It includes more than 330 metabolites isolated from ca. 70 species of heterobranchs
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Jovanović, Milica, Vesna Mačić, Domen Trkov, Martina Orlando-Bonaca, and Lovrenc Lipej. "Review of heterobranch molluscs fauna in the Boka Kotorska Bay, Montenegro." Acta Adriatica 60, no. 2 (2019): 115–26. http://dx.doi.org/10.32582/aa.60.2.1.

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Heterobranch molluscs fauna in Montenegro has been poorly investigated so far. The aim of the present paper is to improve the knowledge about species diversity of these marine organisms in the Boka Kotorska Bay, specific fjord-like entity in the southern Adriatic Sea. New records of seven heterobranch species were obtained by field surveys in 2017, while three new records were provided by analysing underwater photographs from previous periods. The resulted checklist summarizes the knowledge of the diversity of heterobranchs in the Boka Kotorska Bay from the oldest record in 1967 to the present
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Avila, Conxita, and Carlos Angulo-Preckler. "Bioactive Compounds from Marine Heterobranchs." Marine Drugs 18, no. 12 (2020): 657. http://dx.doi.org/10.3390/md18120657.

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The natural products of heterobranch molluscs display a huge variability both in structure and in their bioactivity. Despite the considerable lack of information, it can be observed from the recent literature that this group of animals possesses an astonishing arsenal of molecules from different origins that provide the molluscs with potent chemicals that are ecologically and pharmacologically relevant. In this review, we analyze the bioactivity of more than 450 compounds from ca. 400 species of heterobranch molluscs that are useful for the snails to protect themselves in different ways and/or
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Salvador, Xavier, Robert Fernández-Vilert, and Juan Moles. "Sea slug night fever: 39 new records of elusive heterobranchs in the western Mediterranean (Mollusca: Gastropoda)." Journal of Natural History 56, no. 5-8 (2022): 265–310. https://doi.org/10.1080/00222933.2022.2040630.

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Salvador, Xavier, Fernández-Vilert, Robert, Moles, Juan (2022): Sea slug night fever: 39 new records of elusive heterobranchs in the western Mediterranean (Mollusca: Gastropoda). Journal of Natural History 56 (5-8): 265-310, DOI: 10.1080/00222933.2022.2040630, URL: http://dx.doi.org/10.1080/00222933.2022.2040630
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Papu, Adelfia, Nani Undap, Nancy Armas Martinez, et al. "First Study on Marine Heterobranchia (Gastropoda, Mollusca) in Bangka Archipelago, North Sulawesi, Indonesia." Diversity 12, no. 2 (2020): 52. http://dx.doi.org/10.3390/d12020052.

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As ephemeral, benthic, secondary consumers usually associated with sessile coral reef organisms, marine heterobranchs are good indicators of the health of marine tropical habitats. Thus, marine Heterobranchia have recently become a major target for monitoring programs. For this work, an extensive survey was made in Bangka Archipelago, the first of its kind in this area. Bangka Archipelago is composed of small islands and the adjacent coastline of North Sulawesi. The substrate is dominated by biogenic reefs and volcanic rocks, thus forming highly diverse habitats. In total, 149 species were col
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Cunha, Tauana Junqueira, and Gonzalo Giribet. "A congruent topology for deep gastropod relationships." Proceedings of the Royal Society B: Biological Sciences 286, no. 1898 (2019): 20182776. http://dx.doi.org/10.1098/rspb.2018.2776.

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Gastropod molluscs are among the most diverse and abundant animals in the oceans, and are successful colonizers of terrestrial and freshwater environments. Past phylogenetic efforts to resolve gastropod relationships resulted in a range of conflicting hypotheses. Here, we use phylogenomics to address deep relationships between the five major gastropod lineages—Caenogastropoda, Heterobranchia, Neritimorpha, Patellogastropoda and Vetigastropoda—and provide one congruent and well-supported topology. We substantially expand taxon sampling for outgroups and for previously underrepresented gastropod
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Cunha, Tauana J., Jose Fernández-Simón, Macy Petrula, Gonzalo Giribet, and Juan Moles. "Photographic Checklist, DNA Barcoding, and New Species of Sea Slugs and Snails from the Faafu Atoll, Maldives (Gastropoda: Heterobranchia and Vetigastropoda)." Diversity 15, no. 2 (2023): 219. http://dx.doi.org/10.3390/d15020219.

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Baseline biodiversity data are key for ecological and evolutionary studies and are especially relevant for areas such as the Maldivian Archipelago in the Indian Ocean, which can act as a stepping-stone for the transport of widely distributed marine species. We surveyed the islands and reefs of the Faafu and Malé Atolls with snorkeling and scuba diving, collecting the two gastropod subclasses, Heterobranchia and Vetigastropoda. Our inventory comprises 104 species photographed alive to create an identification guide. We also provide COI barcodes for most species, adding novel sequence data for t
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Chaban, E. M. "Shell-bearing mollusks of the order Cephalaspidea (Gastropoda: Heterobranchia) of the Kara Sea: fauna and ecology." Proceedings of the Zoological Institute RAS 325, no. 2 (2021): 197–216. http://dx.doi.org/10.31610/trudyzin/2021.325.2.197.

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The survey of shell-bearing heterobranchs of the order Cephalaspidea of the Kara Sea has been done based on unpublished and literature data. The studied material includes that collected during expeditions aboard R/V Professor Multanovskiy in August–September 2019 and R/V Dalnie Zelentsy in August 2012. Additionally, the material of collections of the Zoological Institute of the Russian Academy of Sciences (Saint Petersburg) has been studied. The fauna of heterobranch molluscs of the order Cephalaspidea in the Kara Sea includes 18 described and 1 undescribed species that belong to 10 genera and
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Parries, Shawn C., and Louise R. Page. "Larval development and metamorphic transformation of the feeding system in the kleptoparasitic snail Trichotropis cancellata (Mollusca, Caenogastropoda)." Canadian Journal of Zoology 81, no. 10 (2003): 1650–61. http://dx.doi.org/10.1139/z03-154.

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Trichotropis cancellata Hinds, 1849 has a planktonic larval stage that feeds on microalgae and a benthic stage that feeds both by ctenidial suspension feeding and by stealing food ("kleptoparasitism") from several species of suspension-feeding, tube-dwelling polychaete worms. We used scanning electron microscopy, histological sections, and observations on live animals to document the sequence and timing of morphogenetic events during larval and metamorphic development of T. cancellata. These data were compared with other accounts of gastropod development to test for differences in the timing o
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Dissertations / Theses on the topic "Heterobranchs"

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BARROS, José Carlos Nascimento de. "Sistemática e morfometria multivariada de Pyramidellidae (Gastropoda, Heterobranchia)." Universidade Federal de Pernambuco, 2003. https://repositorio.ufpe.br/handle/123456789/8700.

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Made available in DSpace on 2014-06-12T23:01:50Z (GMT). No. of bitstreams: 2 arquivo8330_1.pdf: 19218754 bytes, checksum: da8da4277037a12acf13b0259ab030cb (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2003<br>A família Pyramidellidae Gray, 1840 (Gastropoda, Heterobranchia, Heterostropha) está composta por gastrópodes marinhos normalmente encontrados em sedimentos do mediolitoral ou dragados durante expedições oceanográficas em profundidades variadas, sendo os seus representantes muito pequenos, alguns apresentando dimensões micro
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Moles, Sánchez Juan. "Antarctic heterobranch molluscs: diving into their challenging ecology, taxonomy, and systematics." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/399046.

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This thesis covers three important aspects of Antarctic heterobranchs: ecology, taxonomy, and systematics. The first section deals with ecological interactions of several nudibranchs. In Chapter 1, we chemically characterize a new natural product (a homosesterterpene) called granuloside, from Charcotia granulosa Vayssière, 1906; remarkably, this is the first record of this type of compound in marine organisms. In Chapter 2, we assess the origin, function, and distribution of granuloside in this nudibranch; we found glandular structures probably responsible for storing granuloside, as a defensi
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Jörger, Katharina Verfasser], and Michael [Akademischer Betreuer] [Schrödl. "Tracing evolution : Molecular phylogeny of Acochlidia (Heterobranchia,Gastropoda) / Katharina Jörger. Betreuer: Michael Schrödl." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1065180365/34.

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Jörger, Katharina [Verfasser], and Michael [Akademischer Betreuer] Schrödl. "Tracing evolution : Molecular phylogeny of Acochlidia (Heterobranchia,Gastropoda) / Katharina Jörger. Betreuer: Michael Schrödl." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1065180365/34.

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Undap, Nani Ingrid Jacquline [Verfasser]. "Biodiversity of Marine Heterobranchia (Gastropoda) around North Sulawesi Indonesia / Nani Ingrid Jacquline Undap." Bonn : Universitäts- und Landesbibliothek Bonn, 2020. http://d-nb.info/1219139971/34.

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Legendre, Marc. "Potentialités aquacoles des Cichlidae (Sarotherodon melanotheron, Tilapia guineensis) et Claridae (Heterobranchus longifilis) autochtones des lagunes ivoiriennes." Montpellier 2, 1991. http://www.theses.fr/1991MON20295.

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Après une description des étapes de présélection et de sélection des espèces d'intérêt potentiel pour la pisciculture dans les eaux saumâtres africaines, les potentialités aquacoles de trois espèces sélectionnées a partir de l'ichtyofaune de la lagune Ebrié (Côte d'Ivoire), deux tilapias (Sarotherodon melanotheron, Tilapia guineensis) et un silure (Heterobranchus longifilis), sont analysées et comparées. L'étude de la reproduction-biologie, stratégie et contrôle a été privilégiée. La dynamique des ovaires, la taille ou l'âge de première maturation sexuelle, les cycles saisonniers et la fécondi
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Mendivil, Malpica Alejandro. "Revisión taxonómica de las especies del género Aplysia (Gastropoda: Heterobranchia) de la costa peruana." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2021. https://hdl.handle.net/20.500.12672/17192.

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Aplysia es un género de moluscos gasterópodos que actualmente agrupa 45 especies válidas, conocidas como liebres marinas, con una distribución tropical y subtropical en los mares del mundo. Aplysia ha sido ampliamente usada como organismo modelo en neurociencia por sus neuronas gigantes y su sistema nervioso relativamente simple, y ha sido objeto de numerosas investigaciones sobre su ecología, fisiología, estrategias defensivas y productos naturales. Aunque se describieron 5 especies de Aplysia para Perú en el siglo XIX, no se han realizado estudios posteriores que incluyan un examen de
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Melo, Marlon Delgado. "Opistobr?nquios (mollusca: heterobranchia) do Rio Grande do Norte, Brasil, incluindo 34 novas ocorr?ncias." Universidade Federal do Rio Grande do Norte, 2015. http://repositorio.ufrn.br/handle/123456789/20348.

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Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-04-26T20:27:57Z No. of bitstreams: 1 MarlonDelgadoMelo_DISSERT.pdf: 57317504 bytes, checksum: bc0c674bf921e5980bfc858a437e34c0 (MD5)<br>Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-04-29T21:49:52Z (GMT) No. of bitstreams: 1 MarlonDelgadoMelo_DISSERT.pdf: 57317504 bytes, checksum: bc0c674bf921e5980bfc858a437e34c0 (MD5)<br>Made available in DSpace on 2016-04-29T21:49:52Z (GMT). No. of bitstreams: 1 MarlonDelgadoMelo_DISSERT.pdf: 57317504 bytes, checksum: bc0c674bf921e5980bfc858
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Campbell, Matthew R. "Systematics and phylogenetics of the family Streptacididae (Gastropoda: Heterobranchia) from Devonian through Triassic marine strata." [Bloomington, Ind.] : Indiana University, 2004. http://wwwlib.umi.com/dissertations/fullcit/3162227.

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Thesis (Ph.D.)--Indiana University, Dept. of Geological Sciences, 2004.<br>Title from PDF t.p. (viewed Dec. 1, 2008). Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0172. Co-Chairs: N. Gary Lane; Lisa M. Pratt.
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SANTOS, Franklin Noel dos. "A subfamilia turbonillinae Brown, 1849 (Gastropoda, Heterobranchia, Heterostropha) na margem continental do Nordeste do Brasil." Universidade Federal de Pernambuco, 2002. https://repositorio.ufpe.br/handle/123456789/8550.

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Made available in DSpace on 2014-06-12T23:00:59Z (GMT). No. of bitstreams: 2 arquivo8098_1.pdf: 15805362 bytes, checksum: c88cc6e0670419e5cc67f42878b30f55 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2002<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Informa-se o resultado dos estudo sistemático, ecológico e biogeográfico dos Mollusca, Gastropoda, Turbonillinae, presentes na Margem Continental do Nordeste do Brasil. Os espécimens analisados foram adquiridos através das coleções do Museu de Malacologia Rosa de Li
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Books on the topic "Heterobranchs"

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Öztürk, Bilal. Shelled marine molluscs of the Turkish coasts: Informal group "Lower heterobranchia" (Mollusca-gastropoda). Ege University Press, 2014.

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Book chapters on the topic "Heterobranchs"

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Nithyanandan, Manickam, Nathalie Yonow, Manal Al-Kandari, Rakhesh Madhusoodhanan, Gopikrishna Mantha, and Fathima Thuslim. "An annotated checklist of heterobranch molluscs of the Arabian Gulf and their zoogeographic affinities with adjacent seas." In Coral Reefs and Associated Marine Fauna around the Arabian Peninsula. CRC Press, 2024. http://dx.doi.org/10.1201/9781003321392-15.

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Antit, Mouna, Donia Kalthoumi, Marta Pola, Javier Urra, and Atf Azzouna. "First Record of Doris verrucosa Linnaeus, 1758 (Mollusca: Heterobranchia: Nudibranchia) in the bay of Tunis, Tunisia (Central Mediterranean)." In Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-70548-4_424.

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Wägele, Heike, Annette Klussmann Kolb, Verena Vonnemann, and Monica Medina. "Heterobranchia I." In Phylogeny and Evolution of the Mollusca. University of California Press, 2008. http://dx.doi.org/10.1525/california/9780520250925.003.0014.

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Ponder, Winston F., David R. Lindberg, and Juliet M. Ponder. "Gastropoda III – The Heterobranchia." In Biology and Evolution of the Mollusca. CRC Press, 2020. http://dx.doi.org/10.1201/9781351115254-9.

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Mordan, Peter, and Christopher Wade. "Heterobranchia II: The Pulmonata." In Phylogeny and Evolution of the Mollusca. University of California Press, 2008. http://dx.doi.org/10.1525/california/9780520250925.003.0015.

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Wàgele, Heike, Annette Klussmann-Kolb, Verena Vonnemann, and Monica Medina. "14. HETEROBRANCHIA I: THE OPISTHOBRANCHIA." In Phylogeny and Evolution of the Mollusca. University of California Press, 2008. http://dx.doi.org/10.1525/9780520933705-016.

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Mordan, Peter, and Christopher Wade. "15. HETEROBRANCHIA II: THE PULMONATA." In Phylogeny and Evolution of the Mollusca. University of California Press, 2008. http://dx.doi.org/10.1525/9780520933705-017.

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Schaefer, Kurt. "Development and homologies of the anal gland in haminaea navicula (da costa, 1778) (opisthobranchia, bullomorpha)." In Origin and Evolutionary Radiation of the Mollusca. Oxford University PressOxford, 1995. http://dx.doi.org/10.1093/oso/9780198549802.003.0021.

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Abstract In order to establish the monophyly of the Heterobranchia, Haszprunar (1985, 1988) and Robertson (1985) used pig- meneted anal glands as a synapomorphic character of allogastropods, opisthobranchs and pulmonates. Both authors used different terms for homologous structures and restricted the homology of pigmented and unpigmented anal glands. The anal glands of gastropod veligers consist of conspicuous large vacuolated gland cells which are situated in the mantle cavity, dorsally and ventrally to the hindgut. Secretions of the dorsal gland might be of various colours or even unpigmented
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Ble, Célestin Mélécony, Olivier Assoi Etchian, Athanase Kraidy Otchoumou, Jean Noel Yapi, and Laurent Alla Yao. "Effects of Dietary Palm Oil on the Whole-Body Mineral Composition of African Catfish, Heterobranchus longifilis (Teleostei, Clariidae)." In Palm Oil. InTech, 2018. http://dx.doi.org/10.5772/intechopen.76615.

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"Gly ptothorax, Cetopsis, Nematogenys, Trichomycterus, Hatcheria, Amphilius, Paramphilius, Andersonia, Belonoglanis, Doumea, Phractura, Trachyglanis, Leptoglanis, Zaireichthys, Clarias, Uegitglanis, Heterobranchus, Heteropneustes)." In Morphological Evolution, Adaptations, Homoplasies, Constraints, and Evolutionary Trends. CRC Press, 2004. http://dx.doi.org/10.1201/9781482280081-17.

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