Results 11 to 20 of about 289,293 (264)

Economic feasibility of probiotic use in the diet of Nile tilapia, Oreochromis niloticus, during the reproductive period

Acta Scientiarum: Animal Sciences, 2020
This work examines the economic advantages of probiotic use in the diet of Nile tilapia broodstock during the reproductive period. For this purpose, Bacillus subtilis was applied as a feed additive.
Danielle de Carla Dias, Fernanda de Paiva Badiz Furlaneto, Fábio Rosa Sussel, Leonardo Tachibana, Giovani Sampaio Gonçalves, Carlos Massatoshi Ishikawa, Mariene Miyoko Natori, Maria José Tavares Ranzani-Paiva   +7 more
doaj   +1 more source

Analysis of state for the stocks of sockeye salmon ((Oncorhynchus nerka) from the Bolshaya River (western Kamchatka) in 1929–2022

Известия ТИНРО, 2023
The spawning stock of sockeye salmon in the Bolshaya River is evaluated for 1929–2022. Long-term tendencies are determined for their most important biological parameters, in particular, a juvenilization of returning spawners with decreasing of their body
O. M. Zaporozhets, G. V. Zaporozhets
doaj   +1 more source

Spatiotemporal Changes of the Environmental DNA Concentrations of Amphidromous Fish Plecoglossus altivelis altivelis in the Spawning Grounds in the Takatsu River, Western Japan

Frontiers in Ecology and Evolution, 2021
The Ayu Plecoglossus altivelis altivelis is an amphidromous fish that is not only the most important commercial fishery species in Japanese rivers but also has a high economic value in recreational fishing.
Ryutei Inui, Yoshihisa Akamatsu, Takanori Kono, Minoru Saito, Seiji Miyazono, Ryohei Nakao   +5 more
doaj   +1 more source

Structure of the ichthyoplankton community in a Neotropical floodplain lake affected by environmental degradation

Anais da Academia Brasileira de Ciências, 2022
Many Amazonian fish’ reproduction is associated to seasonality and to the conditions of habitat integrity. In a Neotropical floodplain lake of the Amazon region, the temporal structure of ichthyoplankton was investigated and the hypothesis that the ...
LUCAS S. DE OLIVEIRA, RUINERIS A. CAJADO, LUAN R.B. DOS SANTOS, DIEGO M. ZACARDI   +3 more
doaj   +1 more source

Gonadal development and hermaphroditism of bluespotted seabream, Pagrus caeruleostictus (Valenciennes, 1830) from the Mediterranean Sea, Egypt

Egyptian Journal of Aquatic Research, 2018
The bluespotted seabream Pagrus caeruleostictus represents one of the commercially significant Sparidea fish; however, studies on its reproduction are scarce.
Rania F. Ismail, Mona M. Mourad, Mahmoud M.S. Farrag   +2 more
doaj   +1 more source

Remote Predictions of Mahi-Mahi (Coryphaena hippurus) Spawning in the Open Ocean Using Summarized Accelerometry Data

Frontiers in Marine Science, 2021
Identifying complex behaviors such as spawning and fine-scale activity is extremely challenging in highly migratory fish species and is becoming increasingly critical knowledge for fisheries management in a warming ocean.
Lela S. Schlenker, Robin Faillettaz, John D. Stieglitz, Chi Hin Lam, Ronald H. Hoenig, Georgina K. Cox, Rachael M. Heuer, Christina Pasparakis, Daniel D. Benetti, Claire B. Paris, Martin Grosell   +10 more
doaj   +1 more source

Riverscape heterogeneity in estimated Chinook Salmon emergence phenology and implications for size and growth

Ecosphere, 2022
Many salmonid‐bearing rivers exhibit thermal and hydrologic heterogeneity at multiple spatial and temporal scales, but how this translates into spatiotemporal patterns of fry emergence is poorly understood.
Matthew J. Kaylor, Jonathan B. Armstrong, Joseph T. Lemanski, Casey Justice, Seth M. White   +4 more
doaj   +1 more source

Thermal heterogeneity, migration, and consequences for spawning potential of female bull trout in a river–reservoir system

Ecology and Evolution, 2020
The likelihood that fish will initiate spawning, spawn successfully, or skip spawning in a given year is conditioned in part on availability of energy reserves.
Joseph R. Benjamin, Dmitri T. Vidergar, Jason B. Dunham   +2 more
doaj   +1 more source

Release of eDNA by different life history stages and during spawning activities of laboratory-reared Japanese eels for interpretation of oceanic survey data

Scientific Reports, 2019
To assist in detection of offshore spawning activities of the Japanese eel Anguilla japonica and facilitate interpretation of results of environmental DNA (eDNA) analysis in their spawning area, we examined the eDNA concentration released by each life ...
A. Takeuchi, Takuya Iijima, Wataru Kakuzen, S. Watanabe, Y. Yamada, A. Okamura, N. Horie, N. Mikawa, Michael J. Miller, T. Kojima, K. Tsukamoto   +10 more
semanticscholar   +1 more source

Aquaculture Breeding Enhancement: Maturation and Spawning in Sea Cucumbers Using a Recombinant Relaxin-Like Gonad-Stimulating Peptide

Frontiers in Genetics, 2019
Wild sea cucumber resources have been rapidly exhausted and therefore there is an urgent need to develop approaches that will help restocking. Currently, there is a lack of information regarding the genes involved in sea cucumber reproductive processes ...
Hoang Dinh Chieu, Hoang Dinh Chieu, Luke Turner, Meaghan K. Smith, Tianfang Wang, Josephine Nocillado, Peter Palma, Peter Palma, Saowaros Suwansa-ard, Abigail Elizur, Scott F. Cummins   +10 more
doaj   +1 more source