Results 11 to 20 of about 10,305 (229)

Temperature and Prey Availability Drive Seasonal Variations in Diet, Abundance and Condition of <i>Forsterygion lapillum</i> Across Two Coastal Habitats. [PDF]

Ecol Evol
This study investigated how temperature, turbidity and prey availability affect the diet, body condition and abundance of F. lapillum in two coastal ecosystems. Results showed seasonal and spatial variation, with body condition, abundance and gut volume positively correlated with warmer temperatures but not with turbidity.
Resende AC, Vinagre C, Rogers A.
europepmc   +2 more sources

Functional Anatomy of the Pharynx of Glycera tridactyla Schmarda, 1861 (Annelida: Glyceriformia: Glyceridae). [PDF]

J Morphol
Micro‐CT technology was used to investigate the functional anatomy of the pharynx in the polychaete Glycera tridactyla. The study revealed a complex system of pharyngeal muscles, including ring muscles, retensor muscles, intestinal retractor muscles, and longitudinal muscles of the buccal tube and oesophagus.
Keklikoglou K, Langeneck J, Dimichele D, Vernadou E, Chatzinikolaou E, Musco L.   +5 more
europepmc   +2 more sources

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

Lethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido, Matteo Sposato, Giuseppe Palladino, Alessandro Vescogni, Domenico Miriello   +4 more
wiley   +1 more source

Seasonal Dynamics of the Gut Microbiome in Urban Feral Pigeons Are Associated With Environmental Conditions, Not With Diet Shifts. [PDF]

Ecol Evol
Using feral pigeons in urban environments, we show that microbiome diversity and composition vary seasonally despite stable diet composition. ABSTRACT Gut microbiomes play a crucial role in host physiology and seasonal adaptation. While seasonal shifts in avian gut microbiota are often attributed to seasonal diet variation, environmental factors may be
Zhang K, Zomer H, Potkamp G, Salles JF, Tieleman BI, Dietz MW.   +5 more
europepmc   +2 more sources

Preliminary Data on the Bioturbation Activity of Hediste Diversicolor (Polychaeta, Nereididae) from the Loire Estuary, France [PDF]

, 2012
The ragworm Hediste diversicolor (O. F. Müller, 1776) plays a key role in the estuarine water-sediment interface. This scientific project comes under the framework of the International network Nereis Park Experiment gathering 27 laboratories from all ...
Mouloud, Mohammed, Mouneyrac, Catherine, Simo, Pablo, Gillet, Patrick, Gilbert, Franck   +4 more
core   +1 more source

Seasonal variations of diversity and abundance of the benthic Annelida in coastal sediments of the southern Caspian Sea (Mazandaran-Sari) [PDF]

بوم‌شناسی آبزیان, 2018
In order to investigate seasonal variation of diversity and abundance of Annelida, seasonal sediment sampling was performed on 10 stations with depths of 1, 5, 10 and 20 meters in the coastal area of Sari, Iran in 2015-2016.
Maryam Akhoundian, Nadia Javandel, Fatemeh Kardel   +2 more
doaj  

Serpúlidos (Annelida, Serpulidae) colectados en las campañas oceanográficas de Fauna Ibérica

Graellsia, 2019
Se han identificado las colecciones de poliquetos de la familia Serpulidae (Annelida) recolectados en las campañas oceanográficas de Fauna Ibérica, las cuales se encuentran depositadas en el Museo Nacional de Ciencias Naturales de Madrid (MNCN), en el ...
María José Martínez, Guillermo San Martín   +1 more
doaj   +1 more source

Historical Shifts in Benthic Infaunal Diversity in the Northern Gulf of Mexico since the Appearance of Seasonally Severe Hypoxia

Diversity, 2020
Severe and persistent bottom-water hypoxia (≤2 mg O2 L−1) occurs on the Louisiana/Texas continental shelf from mid-May through mid-September over a large area (up to 23,000 km2 in mid-summer).
Nancy N. Rabalais, Melissa M. Baustian
doaj   +1 more source

Polychaeta in Africa [PDF]

Nature, 1968
A Monograph on the Polychaeta of Southern Africa By J. H. Day. Part 1: Errantia, Pp. viii + 1–458. Part 2: Sedentaria. Pp. 459–878. (London: British Museum (Natural History), 1967.) 300s. the two parts.
openaire   +1 more source

Determination of the grow-out density of Farfantepenaeus paulensis (Perez-Farfante, 1967) shrimp juveniles with a view to providing alternative culture structures (pens) in Ibiraquera Lagoon, Imbituba, Santa Catarina [PDF]

Biotemas, 2007
Ibiraquera Lagoon, which is located between the municipalities of Garopaba and Imbituba, both in Santa Catarina, a state of southern Brazil, was set up in the last decade as part of a Program for the Restocking of Coastal Lagoons.
Luis Vinatea, Jesús Malpartida
doaj