Results 21 to 30 of about 149 (115)

Mitogenic activity and in vitro fertilization inhibitory activity of Genypterus blacodes lectin.

Journal of Pharmacobio-Dynamics, 1984
A lectin which we purified from the mucous of Ophidiidae Genypterus blacodes showed a potent mitogenic activity which was comparable to that of concanavalin A (con A). On the other hand, the lectin treated with 2-mercaptoethanol showed an anti-mitogenic activity against con A and lipopolysaccharide (LPS).
ODA, YASUO, ICHIDA, SEIJI, MIMURA, TSUT0MU, TSUJIKAWA, KAZUTAKE, MAEDA, KAZUHIRO, AONUMA, SHIGERU   +5 more
openaire   +3 more sources

Use of a negative binomial distribution to describe the presence of Sphyrion laevigatum in Genypterus blacodes

Revista Brasileira de Parasitologia Veterinária
This paper describes the frequency and number of Sphyrion laevigatum in the skin of Genypterus blacodes, an important economic resource in Chile. The analysis of a spatial distribution model indicated that the parasites tended to cluster.
Patricio Peña-Rehbein, Patricio De los Ríos-Escalante, Raúl Castro, Carolina Navarrete   +3 more
doaj   +1 more source

First Hybrid Genome Assembly of the Teleost Fish Red Cusk-Eel (Genypterus chilensis) from Oxford Nanopore and Illumina Reads: Comparative Genomic Analysis of Genypterus Species and Long Non-Coding RNA Tissue-Specific Expression

Fishes
The red cusk-eel (Genypterus chilensis) is an endemic Chilean teleost fish of significant importance to fisheries and aquaculture; however, no reference genome is available for this species. In this study, we present the first hybrid genome assembly of G.
Phillip Dettleff, Marcia Arriagada-Solimano, Vania Fuentealba, Karina Tobar, Millaray Sáez, Claudio Olave, Juan Manuel Estrada, Juan Antonio Valdés   +7 more
doaj   +1 more source

Cross‐Validation of Diet Determination Methods for Seabird Conservation

Environmental DNA, Volume 7, Issue 4, July–August 2025.
This study on the diet of the endangered New Zealand king shag (Leucocarbo carunculatus) compared the frequency of occurrence of fishes detected from the same regurgitated pellets (n = 191) using both hard parts and DNA metabarcoding methodologies.
Aimee L. van der Reis, Chris Lalas, Rob Schuckard, Karen L. Middlemiss, Andrew G. Jeffs   +4 more
wiley   +1 more source

COPEPODOS ECTOPARÁSITOS Genypterus blacodes (OSTEICHTES)

Sustainability, Agri, Food and Environmental Research, 2017
Los peces del genero Genypterus son un recurso importante en la industria pesquera, y estos se encuentran expuestos a una serie de ectoparasitos, entre los ectoparasitos se encuentran copepodos los cuales pueden ser muy especificos en sus hospedederos.
openaire   +2 more sources

A shift in the trade? An investigation of the eel trade reveals a likely species switch

Conservation Science and Practice, Volume 7, Issue 4, April 2025.
Details of species identified and their International Union for Conservation of Nature conservation status. * indicates a species listed in Convention on International Trade in Endangered Species Appendix II. Abstract Anguillid eels have seen precipitous declines in their population sizes. Because of these declines, a number are currently designated as
Joshua S. Y. Choo, Golam Rabbani, Elisa X. Y. Lim, Benjamin J. Wainwright   +3 more
wiley   +1 more source

Impacts of Global Warming on Quality of Male Fishes: Evidence From A Meta‐Analysis of Temperature Effects on Sperm Motility Kinematics

Reviews in Aquaculture, Volume 17, Issue 1, January 2025.
ABSTRACT Studies have demonstrated adverse effects of global warming on aquatic ecosystems. However, the effects of increased water temperature (IWT) on fish reproduction are still doubtful in species spawning at low or high temperatures. In this meta‐analysis, we elucidated the effects of global warming on spermatozoa functions, key determinants of ...
Yu Cheng, Jinhai Wang, Sayyed Mohammad Hadi Alavi, Songpei Zhang, Zuzana Linhartová, Deepali Rahi Roy, Nururshopa Eskander Shazada, Borys Dzyuba, Otomar Linhart   +8 more
wiley   +1 more source

Morphology and ultrastructure of pink cusk-eel (Genypterus blacodes, Schneider 1801) spermatozoa by scanning and transmission electron microscopy

Tissue and Cell, 2018
In this study, the morphology and ultrastructure of Genypterus blacodes spermatozoa were characterized through scanning and transmission electron microscopy. Findings revealed that the G. blacodes spermatozoa can be differentiated into three major parts: a spherical head without an acrosome (typical for externally fertilizing fish), a short mid-piece ...
Kelly Dumorné, Iván Valdebenito, Jennie Risopatron, Elías Figueroa, Rommy Díaz, Jorge Farías   +5 more
openaire   +3 more sources

Impact of mercury released from permafrost on food safety in Switzerland

Food Risk Assess Europe, Volume 2, Issue 4, October 2024.
ABSTRACT Climate change has caused the permafrost to thaw, releasing the previously sequestered mercury into the environment. Mercury has the ability to convert to methylmercury, a bioaccumulative neurotoxin. Exposure occurs in humans through the ingestion of contaminated food and it is associated with adverse health effects.
Louise Ray
wiley   +1 more source

Composición de especies, tasas de captura y estructura de tamaño de peces capturados en la pesquería espinelera artesanal de rayas en la zona sur-austral de Chile Species composition, catch rates, and size structures of fishes caught in the small-scale longline skate fishery off southern Chile

Latin American Journal of Aquatic Research, 2008
En los últimos diez años los desembarques de rayas en la pesquería espinelera artesanal se han incrementado aceleradamente en la zona sur-austral de Chile y actualmente se desconocen características fundamentales para la descripción de la dinámica ...
Juan Carlos Quiroz, Rodrigo Wiff, Claudio Gatica, Elson Leal   +3 more
doaj