Results 71 to 80 of about 32,434 (271)

Expression of the pair-rule gene homologs runt, Pax3/7, even-skipped-1 and even-skipped-2 during larval and juvenile development of the polychaete annelid Capitella teleta does not support a role in segmentation

EvoDevo, 2012
Background Annelids and arthropods each possess a segmented body. Whether this similarity represents an evolutionary convergence or inheritance from a common segmented ancestor is the subject of ongoing investigation.
Seaver Elaine C, Yamaguchi Emi, Richards Gemma S, Meyer Néva P   +3 more
doaj   +1 more source

Complete mitochondrial genome of the marine polychaete Hediste japonica (Phyllodocida, Nereididae)

Mitochondrial DNA. Part B. Resources, 2020
To date, only five species are registered in the genus Hediste, and complete mitochondrial genome is reported in one species, Hediste diadroma. In this study, a complete 15,783 bp genome for the marine polychaete H.
Hyoung Sook Park, Sang-Eun Nam, Jae-Sung Rhee   +2 more
doaj   +1 more source

Alteration and release of aliphatic compounds by the polychaete Nereis virens (Sars) experimentally fed with hydrocarbons [PDF]

, 2001
In the laboratory, marine worms were fed with a mixture of algae and several aliphatic hydrocarbons for 15 days. After ingestion by the worms, 34.9% of hydrocarbons are found in the faeces and only 3.1% accumulated in the gut.
Bertrand, Jean-Claude, Deflandre, Bruno, Desrosiers, Gaston, Gagne, Jean-Pierre, Gilbert, Franck, Poggiale, Jean-Christophe, Stora, Georges   +6 more
core   +4 more sources

Ecosystem Impacts of the Landing Obligation for Unwanted Catch in Thermaikos Gulf (Greece)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Discards by marine commercial fisheries have been an issue of major concern to the scientific community in recent years. We modeled the ecological and trophic consequences of a mandatory landing obligation (LO) regulated by the reformed Common Fisheries Policy [Regulation (EU) 1380/2013] on the Thermaikos Gulf ecosystem (northwestern Aegean ...
Ioannis Keramidas, Donna Dimarchopoulou, Ioanna Argyrou, Athanassios C. Tsikliras   +3 more
wiley   +1 more source

Resource partitioning among algal turf‐feeding fishes on a tropical artificial shoreline

Journal of Fish Biology, EarlyView.
Abstract Rapid coastal development has led to the proliferation of artificial structures along urban shorelines. Numerous studies have shown that patterns of fish diversity associated with these novel habitats are driven by physical habitat complexity; however, trophic‐mediated processes in shaping these patterns remain poorly understood.
Daisuke Taira, Hannah H. J. Yeo, Peter A. Todd   +2 more
wiley   +1 more source

Sexually Dimorphic Scale Worms (Annelida: Polynoidae) From Hydrothermal Vents in the Okinawa Trough: Two New Species and Two New Sex Morphs

Frontiers in Marine Science, 2018
Scale worms in the family Polynoidae are common inhabitants of both shallow-water and deep-sea ecosystems, but their diversity in the deep-sea remains poorly known.
Yanjie Zhang, Yanjie Zhang, Chong Chen, Jian-Wen Qiu, Jian-Wen Qiu   +4 more
doaj   +1 more source

Monophyly of brachiopods and phoronids: reconciliation of molecular evidence with Linnaean classification (the subphylum Phoroniformea nov.) [PDF]

, 2000
Molecular phylogenetic analyses of aligned 18S rDNA gene sequences from articulate and inarticulate brachiopods representing all major extant lineages, an enhanced set of phoronids and several unrelated protostome taxa, confirm previous indications that ...
Bernard L. Cohen, Emig C. C., Emig C. C., Ka, Winnepenninckx B.   +4 more
core   +2 more sources

Spatial habitat partitioning enables coexistence of three Gobiidae species in estuarine environments

Journal of Fish Biology, EarlyView.
Abstract This study examines resource partitioning (feeding morphology, diet and habitat partitioning) among three gobiid species, the Knysna sandgoby Psammogobius knysnaensis, the prison goby Caffrogobius gilchristi and the river goby Glossogobius callidus, within an estuarine environment.
Phumza M. Ndaleni, Josie South, Leopold A. J. Nagelkerke, Olaf L. F. Weyl, Phakama Nodo, Nicola C. James   +5 more
wiley   +1 more source

Polytraits : a database on biological traits of marine polychaetes [PDF]

, 2014
The study of ecosystem functioning – the role which organisms play in an ecosystem – is becoming increasingly important in marine ecological research. The functional structure of a community can be represented by a set of functional traits assigned to ...
Arvanitidis, Christos, Chatzigeorgiou, Georgios, Chatzinikolaou, Eva, Dailianis, Thanos, Fanini, Lucia, Faulwetter, Sarah, Keklikoglou, Kleoniki, Koulouri, Panayota, Markantonatou, Vasiliki, Pafilis, Evangelos, Papageorgiou, Nafsika, Pavloudi, Christina, Vasileiadou, Katerina   +12 more
core   +4 more sources

Polychaete chaetae: Function, fossils, and phylogeny [PDF]

Integrative and Comparative Biology, 2006
In this article we review the phylogenetic distribution of major chaetal types within the Polychaeta, discuss what has been demonstrated about chaetal function in modern worms, and examine what is known about the evolution of chaete through the fossil record.
Merz, Rachel, Woodin, S. A.
openaire   +3 more sources