Results 21 to 30 of about 7,591 (159)
Environmental manipulation on Astyanax altiparanae out of season spawning
Latin American Journal of Aquatic Research, 2019 This study aimed to evaluate the effect of manipulating hours of light and water temperature in some important reproductive parameters for Astyanax altiparanae fish farming during winter. The experiment was conducted from July 3 rd to August 28 th 2013 (57 days), and two groups of 32 couples of fish (G1 and G2) were used.
Machado-Evangelista, Mariana +2 more
openaire +3 more sources
Changes in spawning patterns of mature and immature female largehead hairtail (Trichiurus japonicus)
Fisheries and Aquatic SciencesThe largehead hairtail (Trichiurus japonicus) is an important commercial fish species in East Asia. We investigated the changes in the main spawning season of T. japonicus females migrating to the Jeju Island.
Jin Namgung +3 more
doaj +1 more source
Brazilian Journal of BiologyLutjanid species exhibit multiple spawning behaviour during an extended spawning season in warm months, asynchronous oocyte development and indeterminate fecundity.
C. A. F. Fernandes +4 more
doaj +1 more source
Czech Journal of Animal Science, 2018 Assessment of seminal oxidative stress indicators is emerging as a valuable prognostic tool in assisted reproductive technology. We investigated levels of oxidative stress caused by reactive oxygen species (ROS) and the antioxidant enzyme defence system ...
Anna Shaliutina-Kolešová +5 more
doaj +1 more source
Analysis of reproductive biology and spawning season of the pink ear emperor Lethrinus lentjan, from marine ecosystem [PDF]
Zoologia (Curitiba), 2020 A total of 593 samples of Lethrinus lentjan (Lacepede, 1802) were collected from the Red Sea, Jeddah, Saudi Arabia, to study their productive biology and spawning season of the local population. Sampling was carried out on a monthly basis for a period of
Elsayed M. Younis +4 more
doaj +3 more sources
Evaluating the effectiveness of a seasonal spawning area closure [PDF]
ICES Journal of Marine Science, 2015 AbstractFish that aggregate at predictable locations and times to spawn are often vulnerable to over-exploitation. Seasonal closures have often been implemented in an attempt to alleviate such impacts but the effectiveness of these measures is rarely tested. This study evaluates the effectiveness of a spawning closure for Atlantic cod (Gadus morhua) in
Clarke, J., Bailey, D.M., Wright, P.J.
openaire +2 more sources
Environmental DNA, 2021 An understanding of the reproductive biology of aquatic organisms is crucial for the efficient conservation and management of species and/or populations.
Satsuki Tsuji, Naoki Shibata
doaj +1 more source
Abundance, Diversity, and Distribution of Fish Larvae in The Bali Strait
Ilmu KelautanLarva represents the initial phase of a fish’s life after hatching from the egg. Studies on fish larvae aim to provide seasonal information, as well as identify spawning and nursery areas, especially economically important fish species, to support the ...
Noar Muda Satyawan +6 more
doaj +1 more source
Czech Journal of Animal Science, 2006 A qualitative assessment of the Eurasian perch Perca fluviatilis semen describing the basic parameters of seminal plasma was completed. The histological methods used in this study showed changes in perch gonads during a spawning and post-spawning period.
J. Krol +3 more
doaj +1 more source
Gonadal Histology and Spawning Season of Otolithoides pama in the Thanlwin River Estuary
Aquaculture, Fish and FisheriesThe spawning season of Otolithoides pama in the Thanlwin estuary was estimated through gonadosomatic index (GSI) and histological analyses of gonadal development.
Thet Htwe Aung
doaj +1 more source