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  1. Changes in oxygen consumption rate and Na+/K+-ATPase activity during early development were studied in the sea urchin Paracentrotus lividus Lam. The oxygen consumption rate increased from 0.12 μmol O2 mg protein−...

    Authors: Sanja Tomšić, Suzana Stanković and Čedomil Lucu

    Citation: Helgoland Marine Research 2011 65:431

    Content type: Short Communication

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  2. Blue mussels (Mytilus edulis L.) are a valuable resource for commercial shellfish production and may also have uses as a tool in habitat improvement, because mussel beds can increase habitat diversity and complex...

    Authors: Helle Torp Christensen, Per Dolmer, Jens Kjerulf Petersen and Ditte Tørring

    Citation: Helgoland Marine Research 2011 66:241

    Content type: Original Article

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  3. Munida gregaria and M. subrugosa have been considered two different species for more than a century; however, after a recent molecular phylogenetic study, they are considered a single pol...

    Authors: Patricia Pérez-Barros, Javier A. Calcagno and Gustavo A. Lovrich

    Citation: Helgoland Marine Research 2011 65:240

    Content type: Original Article

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  4. A mimic scale-worm was found associated with the athecate hydroid Solanderia secunda, commonly found on reefs of the NW coast of North Sulawesi, Indonesia. The species resembled Medioantenna clavata Imajima 1997,...

    Authors: Cristina Gioia Di Camillo, Daniel Martin and Temir A. Britayev

    Citation: Helgoland Marine Research 2010 65:239

    Content type: Original Article

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  5. This paper deals with taxonomy and phylogenetics of the genus Eurycletodes Sars, 1909 (Copepoda: Harpacticoida: Argestidae). Samples, collected from the southeast Atlantic on board RV “Meteor” during the cruises ...

    Authors: Lena Menzel

    Citation: Helgoland Marine Research 2010 65:237

    Content type: Original Article

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  6. Benthic communities show changes in composition and structure across different environmental characteristics and habitats. However, incorporating species biological traits into the analysis can provide a bette...

    Authors: Aldo S. Pacheco, Maria Teresa González, Julie Bremner, Marcelo Oliva, Olaf Heilmayer, Jürgen Laudien and José M. Riascos

    Citation: Helgoland Marine Research 2010 65:238

    Content type: Original Article

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  7. Several species of ecosystem engineers inhabiting coastal environments have been reported structuring different kinds of communities. The magnitude of this influence often depends on the habitat complexity int...

    Authors: María Cruz Sueiro, Alejandro Bortolus and Evangelina Schwindt

    Citation: Helgoland Marine Research 2010 65:236

    Content type: Original Article

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  8. The age, growth, and population structure of the smooth clam Callista chione were determined from samples collected by hydraulic dredge and SCUBA at four locations in the eastern Adriatic during 2007 and 2008. Th...

    Authors: Daria Ezgeta-Balić, Melita Peharda, Christopher A. Richardson, Marina Kuzmanić, Nedo Vrgoč and Igor Isajlović

    Citation: Helgoland Marine Research 2010 65:235

    Content type: Original Article

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  9. Two new species of the kinorhynch genus Pycnophyes are described from the Atlantic Ocean, Northwest Spain, and the Mediterranean Sea, East of Spain, using differential interference contrast microscopy and scannin...

    Authors: Nuria Sánchez, Fernando Pardos, María Herranz and Jesús Benito

    Citation: Helgoland Marine Research 2010 65:226

    Content type: Original Article

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  10. The Galician rias are singular and complex estuarine systems of great economic importance. Seagrasses are key elements of the ecosystem and favor the maintenance of high species diversity in benthic communitie...

    Authors: Patricia Esquete, Juan Moreira and Jesús S. Troncoso

    Citation: Helgoland Marine Research 2010 65:234

    Content type: Original Article

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  11. During the BENGAL cruises, an important collection of deep-sea benthic organisms was sampled. Among the pennatulacean colonies, a previously undescribed species of chunellid was collected. That material is her...

    Authors: Pablo J. López-González and Gary C. Williams

    Citation: Helgoland Marine Research 2010 65:224

    Content type: Original Article

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  12. Successful larval growth and development of bivalves depend on energy derived from internal (endotrophic phase) and external (exotrophic phase) sources. The present paper studies survival, growth and biochemic...

    Authors: Domitília Matias, Sandra Joaquim, Margarete Ramos, Paula Sobral and Alexandra Leitão

    Citation: Helgoland Marine Research 2010 65:230

    Content type: Original Article

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  13. The purpose of this paper was to study the spatial distribution, abundance and composition of fish larvae in the northern Ionian Sea. Samples were collected to the 600 m depth with an electronic multinet BIONE...

    Authors: Antonia Granata, Annaluce Cubeta, Roberta Minutoli, Alessandro Bergamasco and Letterio Guglielmo

    Citation: Helgoland Marine Research 2010 65:231

    Content type: Original Article

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  14. The reproductive processes of chondrichthyans are complex. Knowledge of the development and maturation of the oviducal gland is vital for understanding the reproductive biology of a species. This study represe...

    Authors: Bárbara Serra-Pereira, Fernando Afonso, Inês Farias, Pedro Joyce, Megan Ellis (nee Storrie), Ivone Figueiredo and Leonel Serrano Gordo

    Citation: Helgoland Marine Research 2010 65:232

    Content type: Original Article

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  15. A recent study concerning the reproductive biology of the garfish (Belone belone, L. 1761) has been carried out in the eastern part of the Adriatic Sea along the Croatian coastline. Specimens of the fish (N = 3,3...

    Authors: B. Zorica, G. Sinovčić and V. Čikeš Keč

    Citation: Helgoland Marine Research 2010 65:233

    Content type: Original Article

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  16. The clam Ruditapes decussatus is commercially important in the south of Portugal. The random amplified polymorphic DNA (RAPD) technique was applied to assess the genetic diversity and population structure of two ...

    Authors: Jorge C. Pereira, Raquel Chaves, Alexandra Leitão, Domitilia Matias and Henrique Guedes-Pinto

    Citation: Helgoland Marine Research 2010 65:229

    Content type: Original Article

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  17. Calyptraeotheres garthi (Brachyura, Pinnotheridae) is a pinnotherid crab that lives in association with some species of Crepidula sp. (Calyptraeidae). The larvae of C. garthi were cultured under laboratory condit...

    Authors: Emiliano H. Ocampo, Jesús D. Nuñez, Marta S. Lizarralde and Maximiliano Cledón

    Citation: Helgoland Marine Research 2010 65:228

    Content type: Original Article

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  18. Molluscan intestinal parasites of the genus Mytilicola, specifically M. intestinalis, were initially introduced into bivalves in the North Sea in the 1930s. It was presumably introduced from the Mediterranean wit...

    Authors: Nikolaus O. Elsner, Sabine Jacobsen, David W. Thieltges and Karsten Reise

    Citation: Helgoland Marine Research 2010 65:223

    Content type: Original Article

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  19. Nematode females of the genus Trophomera (Benthimermithidae) from the collection of the Smithsonian’s National Museum of Natural History (Washington, DC, USA) were examined. Nematodes were collected in different ...

    Authors: Dmitry M. Miljutin

    Citation: Helgoland Marine Research 2010 65:225

    Content type: Original Article

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  20. The yellow clam Mesodesma mactroides (Bivalvia: Mesodesmatidae) was once the most abundant intertidal species on the Atlantic coast of northern Argentina and an important commercial resource in South America. Thi...

    Authors: Marko Herrmann, José E. F. Alfaya, Mauro L. Lepore, Pablo E. Penchaszadeh and Wolf E. Arntz

    Citation: Helgoland Marine Research 2010 65:222

    Content type: Original Article

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  21. The ribbed mussel, Geukensia demissa, is highly dependent on the cordgrass Spartina alterniflora for amelioration from environmental stress and substrate stabilization. Spartina alterniflora is a foundation speci...

    Authors: Cortney Watt, David J. Garbary and Caroline Longtin

    Citation: Helgoland Marine Research 2010 65:221

    Content type: Original Article

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  22. Eleven expeditions were undertaken to the Saint Peter and Saint Paul Archipelago to study the reproductive biology of Grapsus grapsus, providing additional information on limb mutilation and carapace colour. MATU...

    Authors: A. S. Freire, M. A. A. Pinheiro, H. Karam-Silva and M. M. Teschima

    Citation: Helgoland Marine Research 2010 65:220

    Content type: Original Article

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  23. Upwelling intensity modifies coastal primary production and influences individual traits of habitat-forming species. Along the Peruvian coast, beds of the mytilid Perumytilus purpuratus provide structurally compl...

    Authors: Fausto N. Firstater, Fernando J. Hidalgo, Betina J. Lomovasky, Elmer Ramos, Patricia Gamero and Oscar O. Iribarne

    Citation: Helgoland Marine Research 2010 65:214

    Content type: Original Article

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  24. The artificial ecosystem is a large-scale enclosure in northern Hangzhou Bay, China. Using the Ecopath with Ecosim software, a trophic structure model is constructed for 2006–2007 to characterize the food web ...

    Authors: Zuozhi Chen, Shannan Xu and Peimin He

    Citation: Helgoland Marine Research 2010 65:218

    Content type: Original Article

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  25. Early life stages of cephalopods are somewhat complex due to the life history strategy or species specificity of generalized ontogenetic patterns and processes. This work aimed to determine the time length of ...

    Authors: Marcelo Rodrigues, Ángel Guerra and Jesús S. Troncoso

    Citation: Helgoland Marine Research 2010 65:217

    Content type: Original Article

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  26. The structure, diversity and spatial distribution of the amphipod fauna associated with Posidonia oceanica meadows were studied along the Tunisian coasts in 2007. Samples were collected in nine different meadows ...

    Authors: Rym Zakhama-Sraieb, Yassine Ramzi Sghaier and Faouzia Charfi-Cheikhrouha

    Citation: Helgoland Marine Research 2010 65:216

    Content type: Original Article

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  27. Spatial patterns of intertidal peracarids, associated with the alga Corallina elongata, were studied along the whole Iberian Peninsula. A total of 28,215 specimens were collected, comprising 78 different species ...

    Authors: D. Izquierdo and J. M. Guerra-García

    Citation: Helgoland Marine Research 2010 65:219

    Content type: Original Article

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  28. The metazoan parasite fauna of Caulolatilus princeps from northern Baja California, Mexico is quantitatively described for the first time. Further, the ecological aspects of prevalence, abundance, and intensity o...

    Authors: M. A. Rodríguez-Santiago and J. A. Rosales-Casián

    Citation: Helgoland Marine Research 2010 65:215

    Content type: Original Article

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  29. The polychaete Nereis falsa Quatrefages, 1866 is present in the area of El Kala National Park on the East coast of Algeria. Field investigations were carried out from January to December 2007 to characterize the ...

    Authors: Tarek Daas, Mourad Younsi, Ouided Daas-Maamcha, Patrick Gillet and Patrick Scaps

    Citation: Helgoland Marine Research 2010 65:212

    Content type: Original Article

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  30. A 40-y series of consistently collected samples (15 fixed sampling sites, constant sampled area of 15 × 0.95 m2, annual sampling only in late-winter/early-spring seasons, and consistent sieving and sorting proced...

    Authors: J. J. Beukema and R. Dekker

    Citation: Helgoland Marine Research 2010 65:210

    Content type: Original Article

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  31. Crasiella diplura from Sweden and Crasiella sp. from Italy were studied alive and with transmission electron microscopy (TEM). The two species are simultaneous hermaphrodites and share the same reproductive syste...

    Authors: Loretta Guidi, M. Antonio Todaro, Marco Ferraguti and Maria Balsamo

    Citation: Helgoland Marine Research 2010 65:213

    Content type: Original Article

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  32. A catalog and critical review of species and infraspecific taxa of non-fossil geniculate coralline red algae (Corallinales, Rhodophyta) previously reported from the Macaronesian region are presented along with...

    Authors: Edgar F. Rosas-Alquicira, Rafael Riosmena-Rodríguez, Julio Afonso-Carrillo and Ana I. Neto

    Citation: Helgoland Marine Research 2010 65:209

    Content type: Original Article

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  33. The genus Scinaia in the Azores is re-evaluated based on historical and recent collections. A combination of morphological and anatomical diagnostic characters was used for species segregation, and a key for Azor...

    Authors: K. León-Cisneros, R. Riosmena-Rodríguez and A. I. Neto

    Citation: Helgoland Marine Research 2010 65:207

    Content type: Original Article

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  34. Environmental stress affects species richness and diversity in communities, but the precise form of the relationship is unclear. We tested an environmental stress model (ESM) that predicts a unimodal pattern f...

    Authors: Ricardo A. Scrosati, Amanda S. Knox, Nelson Valdivia and Markus Molis

    Citation: Helgoland Marine Research 2010 65:205

    Content type: Original Article

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  35. The sword razor shell Ensis siliqua (Linnaeus, 1758) is a bivalve with a high commercial value being appreciated in fresh and processed markets. However, the genetic studies carried out in populations of E. siliq...

    Authors: Alberto Arias, Mercedes Fernández-Moreno, Juan Fernández-Tajes, Miguel B. Gaspar and Josefina Méndez

    Citation: Helgoland Marine Research 2010 65:203

    Content type: Original Article

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  36. We studied the effect of salinity on growth, fat reserves and condition of the Baltic herring (Clupea harengus membras) juveniles in order to determine their optimum salinity. About 5 months old fish were reared ...

    Authors: Marjut Rajasilta, Päivi Laine and Jorma Paranko

    Citation: Helgoland Marine Research 2010 65:201

    Content type: Original Article

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  37. The present work completes a series of studies on the biology of the shrimp Hippolyte inermis Leach 1815, where we suggested the species to be gonochoristic. The morphology of the male reproductive system (testes...

    Authors: Vanesa Cobos, Vanessa Díaz, Jose Enrique García Raso and M. E. Manjón-Cabeza

    Citation: Helgoland Marine Research 2010 65:196

    Content type: Original Article

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  38. Once, the European lobster could be found in high abundances on rocky substrate around the island of Helgoland. Since the 1960s, the stock has been decreasing dramatically. Until now, it has been assumed that ...

    Authors: Roland Krone and Alexander Schröder

    Citation: Helgoland Marine Research 2010 65:195

    Content type: Original Article

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  39. This study aimed to determine the spawning strategy in the Atlantic bobtail squid Sepiola atlantica, in order to add new information to the knowledge of its reproductive strategy. A total of 12 females that spawn...

    Authors: Marcelo Rodrigues, Manuel E. Garcí, Jesús S. Troncoso and Ángel Guerra

    Citation: Helgoland Marine Research 2010 65:199

    Content type: Original Article

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  40. The distribution patterns of macrobenthic invertebrate assemblages at different spatial scales and in relation to natural and anthropogenic disturbance gradients were investigated in the Pialassa Baiona, a eut...

    Authors: Massimo Ponti, Chiara Casselli and Marco Abbiati

    Citation: Helgoland Marine Research 2010 65:197

    Content type: Original Article

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  41. Ammonia and Elphidium collected in the Kiel Fjord for the present study were first identified on morphological bases as Ammonia beccarii (Linné, 1758) and Elphidium excavatum (Terquem, 1876). Phylogenetic analyse...

    Authors: Magali Schweizer, Irina Polovodova, Anna Nikulina and Joachim Schönfeld

    Citation: Helgoland Marine Research 2010 65:194

    Content type: Original Article

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