Results 121 to 130 of about 2,355,714 (247)

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

The Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia, Sandriely F. Marcondes, Mayara S. Siqueira, Taynara R. F. Leão, Robson A. Rodrigues, Karine N. N. Farias, André L. N. Silva, Karin Virgínia Kuibida, Lilian Franco‐Belussi, Carlos E. Fernandes   +9 more
wiley   +1 more source

Decreased trophic position as a function of increasing body size of a benthic omnivorous fish from the largest freshwater lake in China

, 2011
Potential body size-trophic position relationships of the Darkbarbel catfish Pelteobagrus vachelli (Richardson 1846) were examined using stable isotope analysis.
yuxb@igsnrr.ac.cn, Xu, Jun, Wang, Yuyu, Yu, XB (reprint author), Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China, Yu, Xiubo   +4 more
core  

Supplement 1. Trophic position data set and a complete reference list for the set.

, 2016
File List Carscallen_ES11-00224R1_Supp1.csv -- (MD5: 40758880f531c01b1800c23a93d3d2f8) references.htm -- (MD5: 6378b9fdc00f21b8e38675e2334488f2) Description The file Carscallen_ES11-00224R1_Supp1.csv is a complete list of all species in all eight
Tamara N. Romanuk (170380), W. Mather A. Carscallen (2930286), Kristen Vandenberg (2930283), Neo D. Martinez (420145), Julia M. Lawson (2930289)   +4 more
core   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

The Anatomical Record, EarlyView.
The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley   +1 more source

Microplastic Ingestion in Three Deep-Sea Fish Species: First Ecological Insights from Stable Isotope Analysis

Microplastics
Microplastic (MP) pollution is an emerging environmental stressor in marine ecosystems, yet its relationship with trophic ecology remains poorly understood in deep-sea environments.
Eleonora Monfardini, Maria Letizia Costantini, Tommaso Valente, Laura Ciaralli, Giulio Careddu, Giovanna Jona Lasinio, Daniela Berto, Federico Rampazzo, Greta Panunzi, Maila Severini, Martina Radicioli, Cecilia Silvestri, Marco Matiddi   +12 more
doaj   +1 more source

Dental anomalies in Pleistocene African hippopotamuses from Olduvai Bed II

The Anatomical Record, EarlyView.
Abstract Hippopotamuses are key palaeoenvironmental indicators in African Pleistocene ecosystems due to their ecological dependence on permanent water bodies and their frequent representation in the fossil record. This study examines dental anomalies in Hippopotamus cf. gorgops from several localities in Bed II of Olduvai Gorge (Tanzania), dated to ca.
Darío Fidalgo, Faysal Bibi, Jean‐Renaud Boisserie, Jackson K. Njau, Ignacio de la Torre   +4 more
wiley   +1 more source

Trophic position of Otodus megalodon and great white sharks through time revealed by zinc isotopes. [PDF]

Nat Commun, 2022
McCormack J, Griffiths ML, Kim SL, Shimada K, Karnes M, Maisch H, Pederzani S, Bourgon N, Jaouen K, Becker MA, Jöns N, Sisma-Ventura G, Straube N, Pollerspöck J, Hublin JJ, Eagle RA, Tütken T.   +16 more
europepmc   +1 more source

Comparative histological, histochemical, and histometric evaluation of the esophagus in two avian species with different feeding habits (Ciconia ciconia and Buteo buteo)

The Anatomical Record, EarlyView.
Histological structure of esophagus. Abstract The aim of this study was to conduct a comparative evaluation of the histological and histochemical organization of the esophagus in two avian species with different feeding ecologies. A total of 6 individuals were used for this purpose (3 storks, 3 common buzzards).
Serap İlhan Aksu, Dilem Gülece Ermutlu, Burak Büyükbaki, Turgay Deprem, Serap Koral Taşçi, Şahin Aslan, Rumeysa Nur Aslan, Hatice Gizem Büyükbaki, Mete Cihan   +8 more
wiley   +1 more source

Tooth histotype and enameloid microstructure of Priohybodus arambourgi d'Erasmo, 1960 (Elasmobranchii: Hybodontiformes) from the Late Jurassic of northeastern Brazil

The Anatomical Record, EarlyView.
Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva, Valéria Gallo, Estevan Eltink   +2 more
wiley   +1 more source

Yellowfin tuna (Thunnus albacares) foraging habitat and trophic position in the Gulf of Mexico based on intrinsic isotope tracers. [PDF]

PLoS One, 2021
Le-Alvarado M, Romo-Curiel AE, Sosa-Nishizaki O, Hernández-Sánchez O, Barbero L, Herzka SZ.   +5 more
europepmc   +1 more source