Results 51 to 60 of about 4,872 (179)

Review of the Septibranchia (Mollusca: Pelecypoda) from the deep sea of Campos Basin, Brazil: Family Lyonsiellidae, with description of a new species

open access: yesScientia Marina, 2010
A review is made of the members of Lyonsiellidae present on the continental slope (750-2000 m) of Campos Basin (22°S), off south-eastern Brazil. A total of six taxa are recognized. Two taxa were previously unknown to science (Lyonsiella pipoca n.
Cléo Dilnei de Castro Oliveira   +1 more
doaj   +1 more source

Diel and Artificial Light Effects on Nearshore Communities Revealed by eDNA Metabarcoding

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Environmental DNA revealed rapid, taxon‐specific community reorganization across diel and artificial light conditions in a nearshore marine ecosystem. Distinct responses among trophic groups indicate that artificial light at night reshapes predator–prey interactions and community structure within 30 min of exposure.
Kingsly Chuo Beng   +18 more
wiley   +1 more source

Metabarcoding of Broad‐Diet Nototheniid Fish Stomachs Reveals Newly Detected Antarctic Parasite Signals and Potential Host Associations

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Using 18S rDNA metabarcoding of stomach contents from two Antarctic nototheniid fishes, we detected 242 parasite OTUs. Protists dominated diversity, metazoans dominated abundance, and depth structured assemblages. Novel parasite–host associations and previously unreported pathogenic protists highlight fish metabarcoding as a tool for biodiversity and ...
Micaela B. Ruiz   +6 more
wiley   +1 more source

Individual and combined effects of shading and habitat complexity on benthic macroinvertebrate communities in a mesocosm stream experiment (São Paulo, Brazil)

open access: yesRestoration Ecology, Volume 34, Issue 5, July 2026.
Abstract Introduction Agricultural activities are a major driver of biodiversity loss and ecosystem degradation in subtropical streams, often altering macroinvertebrate community structure and associated ecosystem functions. Although restoration strategies increasingly target these impacts, the relative importance of riparian shading and in‐stream ...
Mariana Morilla   +8 more
wiley   +1 more source

Composición bioquímica de la carne de Polymesoda radiata (Bivalvia: Corbiculidae), en Costa Rica

open access: yesRevista de Biología Tropical, 1998
Se determinó la composición bioquímica y el indice de condición de la almeja verde (Polymesoda inflata) en el río Bebedero, Guanacaste, Costa Rica, entre agosto de 1992 y julio de 1993.
Eleazar Ruiz Campos   +3 more
doaj  

Profundum solomoni (Amphipoda: Uristidae) Exhibits a Disjunct Geographic Distribution at Hadal Depths Across the San Cristobal Trench, Santa Cruz Trench and Nova Canton Trough

open access: yesZoologica Scripta, Volume 55, Issue 4, Page 639-651, July 2026.
ABSTRACT Hadal environments (> 6000 m ocean depths) are often viewed as isolated locations with high species endemism due to limited dispersal. However, molecular studies continue to reveal greater complexity that questions historical perceptions. Recent population genetic studies focused on scavenging amphipods have identified broadly distributed ...
Brett C. Gonzalez   +2 more
wiley   +1 more source

Early Miocene aequipectininin bivalves of the Pirabas Formation of the Pará State, northeastern Brazil [PDF]

open access: yesActa Palaeontologica Polonica
A taxonomic revision of the Tribe Aequipectini from the upper Burdigalian, Lower Miocene Pirabas Formation in Brazil) resulted in an identification of Leptopecten daideleus comb.
María Belén Santelli   +3 more
doaj   +1 more source

Progress and Challenges in Phylogenomics and Genomics of Lophotrochozoa/Spiralia

open access: yesZoologica Scripta, Volume 55, Issue 4, Page 521-544, July 2026.
ABSTRACT Lophotrochozoa is one of the three major bilaterian groups comprising more than half of the bilaterian phyla. Lophotrochozoa includes among others Mollusca, Annelida, Platyhelminthes and Rotifera. Despite representing such a large proportion of animal diversity, they are historically understudied and genomic resources have been scarce. However,
Torsten H. Struck
wiley   +1 more source

Bivalvia biostratigraphy of Aksütlü region (Hekimhan, NW Malatya, Türkiye) and paleoclimatological interpretations

open access: yesBulletin of the Mineral Research and Exploration
In this study, Early Miocene bivalve fauna obtained from Hekimhan Aksütlü locality is presented. Abundant and well-preserved ostreid samples are interesting in the area where molluscs have notbeen studied before.
Müjde Gürsoy
doaj   +1 more source

Sampling effort to characterize estuarine macroinfaunal communities in patchy habitats

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 6, June 2026.
Abstract Estuarine benthic macroinfauna have aggregated, patchy distributions, making accurate community measurements dependent upon sampling scales. The purpose of this study is to determine the appropriate core sizes and sampling effort needed to characterize benthic infaunal communities in Corpus Christi Bay, Texas, USA.
Paul A. Montagna
wiley   +1 more source

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