Results 81 to 90 of about 10,216 (225)

Variation in biochemical composition during gonad maturation of the tropical abalone Haliotis varia Linnaeus 1758 (Vetigastropoda: Haliotidae) [PDF]

, 2007
Biochemical changes in the body components during gonad maturation of the tropical abalone Haliotis varia were investigated using wild collected specimens from the Gulf of Mannar, on the southeast coast of India.
Najmudeen, T M
core   +1 more source

Biometric Characterization and Sexual Dimorphism in 10 Demersal Fish Species From Southern São Tomé and Príncipe

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT This study examines key biometric parameters—length–weight relationships (LWRs), sex ratios, and Fulton's condition factor (K)—for 10 demersal fish species in the coastal waters of southern São Tomé Island: Dentex macrophthalmus, Dentex congoensis, Pagrus caeruleostictus, Lethrinus atlanticus, Lutjanus fulgens, Lutjanus goreensis, Lutjanus ...
Wilfred Boa Morte Zacarias, Qinhua Fang, Gnoumasse Sidibe, Régis Santos   +3 more
wiley   +1 more source

Biological characteristics and mortality of western butterfish (Pentapodus vitta), an abundant bycatch species of prawn trawling and recreational fishing in a large subtropical embayment [PDF]

, 2006
The western butterfish (Pentapodus vitta) is numerous in the bycatch of prawn trawling and recreational fishing in Shark Bay, Western Australia. We have thus determined crucial aspects of its biological characteristics and the potential impact of fishing
Hall, Norman G., Hesp, S. Alex, Mant, Jason C., Moran , Michael J., Newman, Stephen J., Potter, Ian C.   +5 more
core   +1 more source

Low‐Level Mosaicism in Tuberous Sclerosis Complex (TSC): Diagnostic and Clinical Implications From Two Novel Cases and Literature Review

American Journal of Medical Genetics Part A, Volume 200, Issue 4, Page 862-870, April 2026.
ABSTRACT Mosaicism is relatively common in Tuberous Sclerosis Complex (TSC) but can be difficult to detect using routine diagnostic tests, particularly when the variant allele frequency (VAF) is low. We describe two cases of mosaic TSC diagnosed using an ultra‐deep sequencing approach in multiple tissues and review the literature about this topic in ...
Irene Ambrosetti, Carlotta Pia Cristalli, Francesca Montanari, Luca Caramanna, Francesco Modestino, Irene Capelli, Valeria Aiello, Sarah Lerario, Cecilia Evangelisti, Iria Neri, Eugenio Brunocilla, Cesare Rossi, Marco Seri, Daniela Turchetti, Giovanni Innella   +14 more
wiley   +1 more source

Fluctuation of gonadosomatic index during oocyte development in the narrow-clawed crayfish Astacus leptodactylus (Eschscholtz, 1823) in Aras Dam Lake, Iran [PDF]

, 2014
This study was carried out with the aim of examining the seasonal reproductive cycle of the female crayfish Astacus leptodactylus from Aras Dam Lake, Western-Azerbaijan, Iran.
Asadpour-Ousalou, Y.A., Kamali, A., Matinfar, A., Mirheydari, S.M., Paolucci, M., Safi, S., Soltani, M.   +6 more
core  

A long-term copper exposure on freshwater ecosystem using lotic mesocosms: Individual and population responses of three-spined sticklebacks (Gasterosteus aculeatus) [PDF]

, 2007
Three-spined stickleback (Gasterosteus aculeatus) was used as the highest trophic level predator in an outdoor mesocosm study assessing the effect of environmentally realistic copper concentration (0, 5, 25 and 75 μg L−1) over 18 months of continuous ...
Bonzom, Jean-Marc, Gauthier, Laury, Joachim, Sandrine, Lamothe, Sylvain, Palluel, Olivier, Roussel, Hélène   +5 more
core   +4 more sources

Seasonal Variation of δ13C and δ15N in a Boreal Lake Fish Community—Year‐Round Patterns and Explanatory Variables

Ecology of Freshwater Fish, Volume 35, Issue 2, April 2026.
ABSTRACT Seasonal changes in freshwater ecosystems influence fish resource use through both environmental and biological factors, but year‐round studies that include ice‐covered months have been lacking. We investigated seasonal variation in the stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) using year‐round monthly sampling of the fish ...
E. S. Eerola, B. Hayden, A. J. Piro, K. K. Kahilainen   +3 more
wiley   +1 more source

Effects of Hydro-Alcoholic Extract of Withania Coagulans on Antioxidant Status and Sperm Parameters Following Testosterone Administration in Rat

Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Īlām, 2018
Introduction: Enhancement of testosterone levels or its improper and arbitrary usage can disrupt fertility. Today, application of medicinal herbs is considered to treat hormonal disorders and infertility.
Maryam Sarbishegi, Ozra Khajavi
doaj  

Reproductive traits and population structure of Astyanax aeneus (Characiformes: Characidae) from a subtropical river in Mexico

Revista de Biología Tropical, 2013
Champotón River is an unknown area within the Mesoamerican hotspot in Southestern México. Reproductive traits and population structure of Astyanax aeneus were analyzed along an environmental gradient of the upper, middle and lower sections of the river ...
Patricia Trujillo-Jiménez, Jacinto Elias Sedeño-Díaz, Julio A. Camargo, Eugenia López-López   +3 more
doaj  

Effect of Insecticide Dichlorvos on Ovaries of Mosquito Fish Gambusia affinis (Baird and Girard)

مجلة بغداد للعلوم, 2011
The toxicity of insecticide dichlorvos (90%) was tested in ovaries of mosquito fish using three sublethal concentrations (0.3, 0.6, 0.8 µg/L) and studied their effects on the means of body and ovary weights, gonadosomatic index, ovum size and ova number.
Baghdad Science Journal
doaj   +1 more source