Based on specimens collected during the sampling campaigns in the Northern Adriatic from 2003-2010, the diversity of genus Terebellides (Polychaeta; Trichobranchidae) was studied and three species are reported for the Northern Adriatic Sea: Terebellides gracilis Malm, 1874, Terebellides mediterranea spec. nov., and Terebellides stroemii Sars, 1835. Terebellides stroemii was the only species pre...

Nervous system and sensory structure morphologies provide useful information for reconstructing phylogenetic relationships among the Polychaeta, Annelida, and Arthropoda. With the more common use of indirect immunocytochemistry and laser scanning confocal microscopy methods, the detailed information available from morphological studies has increased. Despite this wealth of information, developi...

Pockmarks are circular-shaped depressions that increase seabed heterogeneity and characterized by discontinuous fluid emissions. To understand how environmental conditions of pockmarks affect the structure macro- meiofauna, we investigated two sites in a pockmark field northwestern Madagascar margin. In comparative approach, explored community dominant taxa (Polychaeta, Nematoda hyaline foramin...

For decades, inputs of nutrients and organic matter into the Mar Menor coastal lagoon have favored change from an original oligotrophic to a eutrophic state. The reached stage severe eutrophication “environmental collapse” during spring 2016. This paper describes massive growth Serpulidae (Annelida, Polychaeta) forming large aggregations reef structures after environmental collapse caused by cr...

Research results have identified 173 species of coastal benthic Kien Luong, belonging to 122 genera, 75 families and 7 representative groups. Among the discovered species, Gastropod Molluscs highest number with 70 followed by bivalve molluscs 51 crustaceans 40 species. Other groups account for a lower proportion: Polychaeta has 9 Scaphopoda 2 Cephalopoda Chelicerata all 1 Distribution: The comp...

Specimens belonging to a new species of Perinereis Kinberg, 1865 were collected fromnatural oyster reefs in an estuarine environmenton Florida's southwest coast. The genus Perinereis includes more than 70 species, of which, Perinereis aibuhitensis (Grube, 1878), Perinereis brevicirrata (Treadwell, 1920), Perinereis camiguinoides (Augener, 1922), Perinereis jascooki Gibbs, 1972, Perinereis kuwai...

Grazing and burrowing organisms usually homogenise microalgal mats that form on benthic sediments of many aquatic ecosystems. In the absence of this disruption, microalgal mats can accrete laminated deposits (stromatolites). Stromatolites are rare in modern coastal ecosystems, but persist at locations where metazoans are largely excluded. This study aimed to assess the trophic structure at stro...

Biomechanical pull-tests were used to determine if thallus size and substrate type affect break force and break location of six macroalgal species (Ulva curvata, Gracilaria verrucosa, Gracilaria foliifera, Agardhiella subulata, Fucus vesiculosus and the alien Codium fragile) from a low-energy soft-bottom lagoon in Virginia, USA. Both small and large individuals of all six species incorporated i...

A new polychaete species of the longosomatid genus Heterospio is described from the coastal shelf off Angola in the Southeast Atlantic. This species was found from two sampling points at depths of 105 and 146 m, and differs from other members of the family in having eight short thoracic setigers, in the lack of neuropodial acicular hooks in the first setiger, and in having only three pairs of b...

The main objective of this work is to contribute to the taxonomic knowledge of the species of Capitellidae reported for the Eastern Tropical Pacific. This catalogue includes the original name of each species, new names, synonymies, type localities, the museum or institution where the type material is deposited, revision of the material reported for the region by different authors, new examined ...