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  1. In marine systems, algal abundance and community composition is often heavily influenced by top-down control by herbivores. As a result, examining the extent to which native herbivores exert grazing pressure o...

    Authors: Nikolas J. Kaplanis, Jill L. Harris and Jennifer E. Smith

    Citation: Helgoland Marine Research 2020 74:9

    Content type: Original Article

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  2. Crustacean larvae are usually recognised as small organisms, below one millimeter body size. However, in different crustacean groups such as Stomatopoda, Polychelida, or Achelata, also very large larvae occur ...

    Authors: Paula Gundi, Chiara Cecchin, Lara-Leonie Fetzer, Carolin Haug, Roland R. Melzer and Joachim T. Haug

    Citation: Helgoland Marine Research 2020 74:8

    Content type: Original Article

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  3. Tropical reef ecosystems are generally considered to be sinks of marine zooplankton, mainly due to the predation by scleractinian corals and other planktivores. The present study aims to evaluate the zooplankt...

    Authors: Morgana Brito-Lolaia, Gleice S. Santos, Sigrid Neumann-Leitão and Ralf Schwamborn

    Citation: Helgoland Marine Research 2020 74:7

    Content type: Original Article

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  4. The biology of the scleractinian Porites sverdrupi, endemic to the Gulf of California, is poorly studied. In order to fill that gap, the present study documents the reproductive biology of this coral which is to ...

    Authors: Violeta Martínez-Castillo, Alma Paola Rodríguez-Troncoso, Héctor Reyes-Bonilla, Carlos Augusto Aguilar-Cruz and Carlos Rangel-Dávalos

    Citation: Helgoland Marine Research 2020 74:6

    Content type: Original Article

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  5. Development of the unmanaged waved whelk (Buccinum undatum) fishery on the Mid-Atlantic continental shelf of the United States has initiated investigation into fisheries-related biological and population attribut...

    Authors: Sarah Borsetti, Daphne Munroe, David Rudders and Jui-Han Chang

    Citation: Helgoland Marine Research 2020 74:5

    Content type: Original Article

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  6. In this study, antifouling and antibacterial properties of polar, semi polar and non-polar bioactive compounds derived from the sea cucumber Holothuria leucospilota were investigated. A series comprising n-hexane...

    Authors: Mehrnoosh Darya, Mir Masoud Sajjadi, Morteza Yousefzadi, Iman Sourinejad and Maaroof Zarei

    Citation: Helgoland Marine Research 2020 74:4

    Content type: Original Article

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  7. Ocean acidification has become serious, and seawater hypoxia has become evident in acidified waters. The combination of such stressors may have interactive effects on the fitness of marine organisms. In order ...

    Authors: Xinghuo Wang, Yueyong Shang, Hui Kong, Menghong Hu, Jinlong Yang, Yuewen Deng and Youji Wang

    Citation: Helgoland Marine Research 2020 74:3

    Content type: Original Article

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  8. Even though Glycymeris longior is a clam widely distributed in the SW Atlantic Ocean, little is known about its biology and life history. The present study assessed the periodicity of the internal growth incremen...

    Authors: Lucas H. Gimenez, María del Socorro Doldan, Paula C. Zaidman and Enrique M. Morsan

    Citation: Helgoland Marine Research 2020 74:2

    Content type: Original Article

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  9. Since its introduction from North America in the 1970s, the American razor clam Ensis leei (M. Huber, 2015) has successfully spread throughout North Sea coasts from Spain to Norway and the United Kingdom to the w...

    Authors: Johanna Kottsieper, Philipp Schwemmer, Nele Markones, Anthony D. Fox and Stefan Garthe

    Citation: Helgoland Marine Research 2019 73:11

    Content type: Short Communication

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  10. Analysis of 322 cuttlebones of Sepia bertheloti caught in the waters of the Northwest Africa showed significant differences in growth between males and females. Morphometric analysis revealed a relatively differe...

    Authors: Airam Guerra-Marrero, David Jiménez-Alvarado, Vicente Hernández-García, Leticia Curbelo-Muñoz and José Juan Castro-Hernández

    Citation: Helgoland Marine Research 2019 73:10

    Content type: Short Communication

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  11. The Helgoland Roads time series is one of the longest and most detailed time series in the world. It comprises daily phytoplankton counts accompanied by physico-chemical measurements. As such, it provides valu...

    Authors: Alexandra Kraberg, Ute Kieb, Silvia Peters and Karen Helen Wiltshire

    Citation: Helgoland Marine Research 2019 73:9

    Content type: Original Article

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  12. For a better understanding of functioning and stability of ecosystems, it is important to know to what extent constituent species show similarity in their long-term fluctuation patterns, i.e. whether their num...

    Authors: J. J. Beukema and R. Dekker

    Citation: Helgoland Marine Research 2019 73:8

    Content type: Original Article

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  13. Predation is an interaction between species that influences community organisation by the direct consumption of prey, influencing prey numbers, behaviours and traits. The intensity of predation is greatly infl...

    Authors: Marcos M. Nogueira, Elizabeth Neves and Rodrigo Johnsson

    Citation: Helgoland Marine Research 2019 73:7

    Content type: Original Article

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  14. The southernmost permanent population of the fiddler crab Leptuca uruguayensis occurs along the Samborombón Bay (36°22′S, 56°45′W, Argentina), an important feeding site for many bird species, including ruddy turn...

    Authors: Pablo D. Ribeiro, Diego D. Navarro, Luciano M. Jaureguy, Pedro Daleo and Oscar O. Iribarne

    Citation: Helgoland Marine Research 2019 73:6

    Content type: Original Article

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  15. Sea urchin grazing rates can strongly impact kelp bed persistence. Elevated water temperature associated with climate change may increase grazing rates; however, these effects may interact with local stressors...

    Authors: Sarah B. Traiger

    Citation: Helgoland Marine Research 2019 73:5

    Content type: Short Communication

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  16. Despite the availability of well-documented data, a comprehensive review of the discovery progress of polychaete worms (Annelida) has never been done. In the present study, we reviewed available data in the Wo...

    Authors: Joko Pamungkas, Christopher J. Glasby, Geoffrey B. Read, Simon P. Wilson and Mark J. Costello

    Citation: Helgoland Marine Research 2019 73:4

    Content type: Original Article

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  17. During 2015–2016, a strong El Niño, the “Godzilla El Niño,” which is similar to El Niño events that occurred in 1982/1983 and 1997/1998, occurred in the Pacific Ocean. In this paper, we report on the influence...

    Authors: Erik Coria-Monter, David Alberto Salas de León, María Adela Monreal-Gómez and Elizabeth Durán-Campos

    Citation: Helgoland Marine Research 2019 73:3

    Content type: Original Article

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  18. Diatoms are thought to provide about 40% of total global photosynthesis and diatoms of the genus Coscinodiscus are an important, sometimes dominant, cosmopolitan component of the marine diatom community. The oomy...

    Authors: Anthony Buaya, Alexandra Kraberg and Marco Thines

    Citation: Helgoland Marine Research 2019 73:2

    Content type: Original Article

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  19. Fish harbor a high diversity of parasites that play an important role for the ecosystem. Because these parasites have different life-cycle traits, changes in their populations or communities may provide useful...

    Authors: Francisco N. Morales-Serna, María A. Rodríguez-Santiago, Rolando Gelabert and Luz M. Flores-Morales

    Citation: Helgoland Marine Research 2019 73:1

    Content type: Original Article

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  20. The sea hare Bursatella leachii (de Blainville 1817) (Mollusca: Gastropoda: Heterobranchia: Aplysiidae) is a pantropical sea slug that has colonized the Mediterranean Sea in modern times. Because the initial reco...

    Authors: Enrico Bazzicalupo, Fabio Crocetta, Ka‘ala Estores-Pacheco, Haleh Golestani, Hocein Bazairi, Salvatore Giacobbe, Andrej Jaklin, Dimitris Poursanidis, B. K. Sneha Chandran, Juan Lucas Cervera and Ángel Valdés

    Citation: Helgoland Marine Research 2018 72:19

    Content type: Original Article

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  21. Most of our planet’s biodiversity is still unknown, particularly in the sea. Although around the island of Sylt in the North Sea, the small zoobenthos (meiofauna) has been studied intensively since the 1950s, ...

    Authors: Werner Armonies

    Citation: Helgoland Marine Research 2018 72:18

    Content type: Original Article

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  22. Marine organism adaptive capacity to different environmental conditions is a research priority to understand what conditions are important in structuring the spatial distribution of natural populations. In thi...

    Authors: Jesús Darío Nuñez, Pedro Fernández Iriarte, Emiliano Hernán Ocampo, Enrique Madrid and Maximiliano Cledón

    Citation: Helgoland Marine Research 2018 72:16

    Content type: Original Article

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  23. The introduction of non-indigenous species (NIS) in new environments represents a major threat for coastal ecosystems. A good understanding of the mechanisms and magnitude of the impact of NIS colonisation on ...

    Authors: Léa Riera, Patrício Ramalhosa, João Canning-Clode and Ignacio Gestoso

    Citation: Helgoland Marine Research 2018 72:15

    Content type: Original Article

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  24. The sudden appearance and disappearance of nudibranchs in intertidal areas have puzzled researchers all over the world, giving rise to a great diversity of theories to explain it. Here we conducted a five-year...

    Authors: Ricardo Cyrne, Inês C. Rosa, Filipa Faleiro, Gisela Dionísio, Miguel Baptista, Ana Couto, Marta Pola and Rui Rosa

    Citation: Helgoland Marine Research 2018 72:14

    Content type: Original Article

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  25. Marine invasions are of increasing concern for biodiversity conservation worldwide. Gelatinous macrozooplankton contain members, which have become globally invasive, for example the ctenophore Mnemiopsis leidyi o...

    Authors: Cornelia Jaspers, Bastian Huwer, Nancy Weiland-Bräuer and Catriona Clemmesen

    Citation: Helgoland Marine Research 2018 72:13

    Content type: Original Article

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  26. Epibenthic and benthopelagic medusae are rarely collected by standard benthic or pelagic sampling methods, and many species are considered uncommon and geographically restricted. Peer-reviewed scientific liter...

    Authors: Luis Martell, Anne Helene S. Tandberg and Aino Hosia

    Citation: Helgoland Marine Research 2018 72:12

    Content type: Original Article

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  27. Based on the past 150 years of research and ongoing time-series observations we give a comprehensive overview of marine species composition around the island of Sylt in the eastern North Sea. A total of 2758 s...

    Authors: Werner Armonies, Harald Asmus, Christian Buschbaum, Dagmar Lackschewitz, Karsten Reise and Johannes Rick

    Citation: Helgoland Marine Research 2018 72:11

    Content type: Original Article

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  28. Mussel attachment strength varies in space and time, frequently in association with variations in wave exposure. Yet, it remains uninvestigated whether different rock types can contribute to variation in musse...

    Authors: Jorge L. Gutiérrez, María Bagur, Lorena P. Arribas and M. Gabriela Palomo

    Citation: Helgoland Marine Research 2018 72:10

    Content type: Original Article

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  29. According to recent reports, shell morphology is unreliable for the identification of oysters because of the high phenotypic plasticity of these bivalves. Using COI DNA barcoding and sperm morphology, we reinv...

    Authors: Arkadiy Reunov, Evgenia Vekhova, Evgeny Zakharov, Yulia Reunova, Yana Alexandrova, Svetlana Sharina and Andrey Adrianov

    Citation: Helgoland Marine Research 2018 72:8

    Content type: Original Article

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  30. Many fish species have behavioral traits related to reproduction that aim to improve egg conditions and survival of early life stages. Here, we provide the first detailed description of reproductive strategies...

    Authors: José Amorim Reis-Filho and Antoine O. H. C. Leduc

    Citation: Helgoland Marine Research 2018 72:7

    Content type: Short Communication

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  31. The South African coastline can be divided into at least four temperature-defined marine bioregions, including the tropical north-east coast, the subtropical east coast, the warm-temperate south coast, and the...

    Authors: Candice M. Jooste, Jody Oliver, Arsalan Emami-Khoyi and Peter R. Teske

    Citation: Helgoland Marine Research 2018 72:6

    Content type: Original Article

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  32. The present compilation is the first attempt to generate a comprehensive list of all macrozoobenthic species recorded at least once in the German regions of the North Sea and Baltic Sea including non-indigenou...

    Authors: Michael L. Zettler, Jan Beermann, Jennifer Dannheim, Brigitte Ebbe, Michael Grotjahn, Carmen-Pia Günther, Manuela Gusky, Britta Kind, Ingrid Kröncke, Ralph Kuhlenkamp, Claus Orendt, Eike Rachor, Anja Schanz, Alexander Schröder, Lisa Schüler and Jan Witt

    Citation: Helgoland Marine Research 2018 72:5

    Content type: Original Article

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  33. Recruitment patterns of sessile species often do not reflect the composition of the local propagule pool. This is, among other processes, attributed to the stimulation or inhibition of settlement by resident s...

    Authors: I. Krüger, M. Lenz and M. Thiel

    Citation: Helgoland Marine Research 2018 72:4

    Content type: Original Article

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  34. The brooding gastropod Crepipatella dilatata can feed by scraping the substrate with the radula and by suspension-feeding, which also requires use of the radula. There is a “division of labour” for the radula amo...

    Authors: O. R. Chaparro, J. A. Montory, C. J. Segura, V. M. Cubillos, L. P. Salas-Yanquin and R. J. Thompson

    Citation: Helgoland Marine Research 2018 72:3

    Content type: Original Article

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  35. In a nuclear-follower fish foraging association, the follower benefits from food uncovered or flushed out when the nuclear fish disturbs the bottom, while nuclear species generally do not seem to be benefiting...

    Authors: Maria L. F. Ternes, Vinicius J. Giglio, Thiago C. Mendes and Pedro H. C. Pereira

    Citation: Helgoland Marine Research 2018 72:2

    Content type: Original Article

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  36. Understanding the patterns of displacement and site fidelity in blue land crabs (Cardisoma guanhumi Latreille, 1825) has important implications for their conservation and management. The central objective of this...

    Authors: Denise Moraes-Costa and Ralf Schwamborn

    Citation: Helgoland Marine Research 2018 72:1

    Content type: Original Article

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  37. To understand the activity of marine viruses, experiments on viral production, viral decay and the percentage of lytic and lysogenic bacterial cells among the total number of bacterial cells were carried out s...

    Authors: Marin Ordulj, Nada Krstulović, Danijela Šantić, Slaven Jozić and Mladen Šolić

    Citation: Helgoland Marine Research 2017 71:22

    Content type: Original Article

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  38. Some benthic assemblages studies have tested the effects of different preservation procedures on biomass, but their influence on quantitative patterns (number of species and abundance) is still unclear. We eva...

    Authors: Gabriel Barros Gonçalves de Souza and Francisco Barros

    Citation: Helgoland Marine Research 2017 71:21

    Content type: Original Article

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  39. This study provides an updated catalogue of non-indigenous species (NIS) of polychaetes reported from the continental coasts of the Iberian Peninsula based on the available literature. A list of 23 introduced ...

    Authors: E. López and A. Richter

    Citation: Helgoland Marine Research 2017 71:19

    Content type: Original Article

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  40. We followed the dynamics of the population of the bivalve Limecola (Macoma) balthica in the westernmost part of the Wadden Sea by monitoring for 44 years (1973–2016) its numbers and age composition at 15 sites in...

    Authors: J. J. Beukema, R. Dekker and J. Drent

    Citation: Helgoland Marine Research 2017 71:18

    Content type: Original Article

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  41. In symbiotic crustaceans, host-use patterns vary broadly. Some species inhabit host individuals solitarily, other species live in heterosexual pairs, and even other species live in aggregations. This disparity...

    Authors: J. Antonio Baeza, Samara de Paiva Barros-Alves, Rudá Amorim Lucena, Silvio Felipe Barbosa Lima and Douglas Fernandes Rodrigues Alves

    Citation: Helgoland Marine Research 2017 71:17

    Content type: Original Article

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  42. The species richness and community composition of the diatom communities were studied in the Baltic Sea, Northern Europe, to enhance knowledge about the diversity of these organisms in a brackish water ecosyst...

    Authors: Leena Virta and Janne Soininen

    Citation: Helgoland Marine Research 2017 71:16

    Content type: Original Article

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  43. The rhodophytes Mastocarpus stellatus and Chondrus crispus occupy the lower intertidal zone of rocky shores along North Atlantic coastlines, with C. crispus generally occurring slightly deeper. Consequently, M. s...

    Authors: Kristina Koch, Wilhelm Hagen, Martin Graeve and Kai Bischof

    Citation: Helgoland Marine Research 2017 71:15

    Content type: Original Article

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  44. The ultrastructure of the ovary during development and yolk production is poorly known in Brachyura and Majoidea in particular. Here, we describe the histology, histochemistry and ultrastructure of the adult o...

    Authors: Michelle Mollemberg, Fernando José Zara and William Santana

    Citation: Helgoland Marine Research 2017 71:14

    Content type: Original Article

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  45. Atlantic Canada’s American oyster (Crassostrea virginica) beds, while economically and ecologically important, have been in decline over the past few decades. Predation by crabs, in particular by the European gr...

    Authors: Luke A. Poirier, Lynn A. Symington, Jeffrey Davidson, Sophie St-Hilaire and Pedro A. Quijón

    Citation: Helgoland Marine Research 2017 71:13

    Content type: Original Article

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