Results 81 to 90 of about 3,826 (231)

Ocean deoxygenation caused non‐linear responses in the structure and functioning of benthic ecosystems

open access: yesGlobal Change Biology, Volume 30, Issue 1, January 2024.
Over the past decades, there has been a gradual decline in global ocean oxygen concentrations due to climate change (ocean warming) and human activities (eutrophication). How this long‐term deoxygenation affects the macrobenthic communities and sediment biogeochemistry remain elusive.
Ludovic Pascal   +6 more
wiley   +1 more source

Description of two new species of Malacoceros and Rhynchospio spionids (Polychaeta: Spionidae) from the Grand Caribbean region Descripción de dos nuevas especies de espiónidos de Malacoceros y Rhynchospio (Polychaeta: Spionidae) de la región del Gran Caribe

open access: yesRevista Chilena de Historia Natural, 2010
Two new species of spionids are described from the Caribbean Sea, Malacoceros cariacoensis n. sp. from Venezuela and Rhynchospio harrisae n. sp. from Guana in the Virgin Islands, British Virgin Island. Malacoceros cariacoensis n. sp.
V. HUGO DELGADO-BLAS, ÓSCAR DÍAZ-DÍAZ
doaj  

Annelid invaders in the Black Sea region: The distribution of Streblospio gynobranchiata and first occurrence of Laonome xeprovala

open access: yesGlobal Ecology and Conservation, 2021
The present study reports the spread of Streblospio gynobranchiata (Annelida, Spionidae) off Romanian coast and adjacent waters and the first occurrence of Laonome xeprovala (Annelida, Sabellidae) in the Black Sea basin.
Adrian Teacă   +2 more
doaj  

Depth-dependent varation in soft-bottom fauna [PDF]

open access: yes, 1996
Depth is an important variable influencing soft-bottom-fauna communities. Lowest diversities were found at depths shallower than 40 m, probably due to stronger fluctuations in environmental factors. Maximum diversities were found at 65-115 m depth.
Rygg, B.
core  

Enkel resipientundersøkelse i Oslofjorden ved Alnas munning for å belyse eventuelle skader forårsaket av utslipp av akrylamid fra Romeriksporten [PDF]

open access: yes, 1997
Det ble ikke påvist akrylamid i vann og sedimenter i Alnaelvas munning eller sjøområdet utenfor. I selve munningen var bunnen død. Også Oslofjorden utenfor var kraftig forurensningspåvirket, men med en viss bedring i faunatilstanden med økende avstand ...
Magnusson, J., Rygg, B.
core  

Records of Polydora cornuta and Streblospio gynobranchiata (Annelida, Spionidae) from the Black Sea [PDF]

open access: yes, 2013
Two spionid polychaetes, Polydora cornuta and Streblospio gynobranchiata, were identified in benthic samples collected in the northern Black Sea and adjacent waters.
RADASHEVSKY, V.I., SELIFONOVA, Z.P.
core   +5 more sources

Assessing the benthic ecological status in the stressed coastal waters of Yantai, Yellow Sea, using AMBI and M-AMBI. [PDF]

open access: yes, 2013
The coastal waters around Yantai have been subjected to a variety of anthropogenic pressures over the last two decades. To assess the current benthic ecological health and the recovery process of the benthic ecosystem, four surveys were conducted in 2010
Baoquan Li, Bingjun Li, Quanchao Wang
core   +1 more source

Spatio-temporal distribution of spionids (Polychaeta-Spionidae) in an estuarine system in south-central Chile Distribución espacio-temporal de los espiónidos (Polychaeta-Spionidae) en un sistema de estuarios del centro sur de Chile

open access: yesRevista Chilena de Historia Natural, 2008
This study is based on the identification and distribution of spionid polychaetes in relation to abiotic characteristics of the environment at the mouth of the Valdivia-Tornagaleones estuary in south-central Chile. Four samplings were carried out in 2005,
MAURICIO DÍAZ-JARAMILLO   +3 more
doaj  

Composición y estructura de las comunidades de poliquetos (Annelida) asociadas a fondos blandos de la costa occidental de la península de Baja California, México

open access: yesRevista Mexicana de Biodiversidad, 2016
Los poliquetos son uno de los grupos más importantes en el bentos desde cualquier punto de vista. Con el presente estudio se tiene el propósitode caracterizar la riqueza específica de la fauna de poliquetos de la costa occidental de Baja California ...
Andrea Prado-Navarro   +3 more
doaj   +1 more source

Molecular analysis of Spiophanes bombyx complex (Annelida: Spionidae) with description of a new species.

open access: yesPLoS ONE, 2020
Spiophanes bombyx (Claparède, 1870) from the Gulf of Naples, Tyrrhenian Sea, Italy, was the first described Spiophanes with fronto-lateral horns on the prostomium. It was also considered the only horned species occurring in European waters.
Vasily I Radashevsky   +6 more
doaj   +1 more source

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