Results 11 to 20 of about 128,132 (264)

Insights into the phylogeny of the ciliate of class Colpodea based on multigene data

open access: yesEcology and Evolution, 2022
In the class Colpodea, there are many unresolved evolutionary relationships among taxa. Here, we report 30 new sequences including SSU‐rRNA, ITS1‐5.8S‐ ITS2 rRNA, and the mitochondrial small subunit ribosomal RNA (mtSSU‐rRNA) genes of five colpodeans ...
Bailin Li   +7 more
doaj   +1 more source

Identification, characterization, and function of GRP94 and HSP90β in cold stress response in cold water fish Phoxinus lagowskii

open access: yesAquaculture Reports, 2023
The glucose-regulated protein (GRP94) and HSP90β are highly conserved and diverse molecular chaperones that could prevent protein aggregation and denaturation while also playing an important role in cellular stress responses.
Tianxu Zhang   +6 more
doaj   +1 more source

Ethoxyquin : a feed additive that poses a risk for aquatic life [PDF]

open access: yes, 2018
Ethoxyquin (EQ) is an antioxidant that has, to date, been commonly used in feed production. Reports on the detrimental effects of this substance on vertebrates are growing, but effects in aquatic systems have rarely been described. Therefore, the present
Pietsch-Schmied, Constanze   +1 more
core   +1 more source

Changes in fatty acid profile of Holothuria forskali muscle following acute mercury exposure

open access: yesGrasas y Aceites, 2021
The present study aimed to document the interaction between mercury (Hg), as a model chemical stressor to an aquatic organism, and Fatty acid (FA) profile in the longitudinal muscle of the sea cucumber Holothuria forskali.
I. Rabeh   +5 more
doaj   +1 more source

Assessment of oxidative stress, genotoxicity and histopathological responses in the digestive gland of Ruditapes decussatus collected from northern Tunisian lagoons

open access: yesScientia Marina, 2020
The aim of the present study was to investigate the combined effects of seasonality and anthropogenic pressure on a battery of oxidative stress, lipid peroxidation, protein oxidation, DNA damage and histological alterations in the native clam Ruditapes ...
Safa Bejaoui   +9 more
doaj   +1 more source

Culturable microbiota associated with farmed Atlantic bluefin tuna (Thunnus thynnus)

open access: yesAquatic Living Resources, 2017
This study examined culturable microbiota associated with farming of Atlantic bluefin tuna (Thunnus thynnus), an economically significant aquacultured fish species, in autumn and late spring. While sea water gave higher heterotroph plate counts than tuna
Kapetanović Damir   +4 more
doaj   +1 more source

Occurrence of two abdominal neurofibromas in a specimen of Betta splendens

open access: yesAquaTechnica, 2021
En este trabajo describimos dos neurofibromas en Betta splendens estudiados con microscopía óptica, inmunohistoquímica y microscopía electrónica. El espécimen estudiado, que pertenecía a un criador privado, presentaba marcada distensión abdominal, fue ...
Luis Alberto Romano   +2 more
doaj   +1 more source

Combined effects of temperature and light intensity on the fry viability of Ussuri catfish Pseudobagrus ussuriensis

open access: yesAquaculture Reports, 2020
The combined effects of temperature and light intensity on the viability of Ussuri catfish, Pseudobagrus ussuriensis, were evaluated using a central composite orthogonal quadratic design and the response surface methodology.
ZhengJun Pan   +5 more
doaj   +1 more source

Dragonflies (Odonata) in Cocoa Growing Areas in the Atlantic Forest: Taxonomic Diversity and Relationships with Environmental and Spatial Variables

open access: yesDiversity, 2022
In the south of Bahia state, a large part of the native Atlantic Forest areas has been modified for the cultivation of cocoa (Theobroma cacao). These crops are cultivated under the shade of the canopy of native trees, a system locally known as the ...
Laís R. Santos, Marciel E. Rodrigues
doaj   +1 more source

A critical assessment of different transmethylation procedures commonly employed in the fatty acid analysis of aquatic organisms [PDF]

open access: yes, 2008
Several transmethylation procedures have been used for fatty acid analysis of aquatic organisms although the suitability of the applied procedures has rarely been tested.
Henderson, R James   +5 more
core   +1 more source

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