Results 21 to 30 of about 980,932 (380)

Assessment of Sexual Maturity and Spawning Biology of Channa punctata (Bloch, 1793): Conservation and Reproduction

open access: diamondAsian Journal of Fisheries and Aquatic Research, 2023
The study was conducted in the freshwater station of the Bangladesh Fisheries Research Institute in Mymensingh between September 2021 and August 2022. Finding the sex ratio, sexual maturity, LWR, reproductive biology, fecundity, and histological examination of gonads of C. punctata were the main objectives of the present study.
Md. Rabiul Awal   +5 more
openalex   +3 more sources

Reproductive biology of Copella arnoldi (Characiformes: Lebiasinidae), a terrestrial-spawning fish from the Amazon

open access: goldNeotropical Ichthyology
Abstract We assessed the reproductive biology of the splash tetra, Copella arnoldi, an ornamental species with an extraordinary reproductive strategy. We collected 171 individuals from a river in the eastern Amazon between August 2016 and June 2017. The sex ratio remained relatively stable during the study period.
Rafael R. Farias   +6 more
openalex   +3 more sources

Analysis of reproductive biology and spawning season of the pink ear emperor Lethrinus lentjan, from marine ecosystem [PDF]

open access: goldZoologia, 2020
A total of 593 samples ofLethrinus 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 one year.
Elsayed M. Younis   +4 more
openalex   +5 more sources

Female reproductive biology of the bluemouth Helicolenus dactylopterus dactylopterus: spawning and fecundity [PDF]

open access: yesJournal of Fish Biology, 2010
The bluemouth Helicolenus dactylopterus dactylopterus is a zygoparous species that spawns multiple batches of embryos enclosed within a gelatinous matrix. Oocyte development is asynchronous, and the recruitment of secondary growth oocytes occurs continuously during the developing phase, but stops before the start of the first spawning (i.e.
Muñoz Frigola, Marta   +6 more
openaire   +5 more sources

Spawning and developmental biology of endangered Pabdah catfish, Ompok pabda (Hamilton, 1822)

open access: diamondAsian Journal of Medical and Biological Research, 2020
Pabdah catfish, Ompokpabdawas collected from the Old Brahmaputra river and successfully induced to breed by injecting pituitary gland extract to evaluate spawning performances and developmental stages under a photo microscope from February 2018 to August 2018. In this study, absolute fecundity of the O. pabdafemales varied from 6,676 to 20,410 eggs per
Israt Jahan Tumpa   +3 more
openalex   +3 more sources

Embryo and larval development of the yellow clam Mesodesma mactroides (Reeve, 1854) (Mesodesmatidae) in laboratory [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
The yellow clam Mesodesma mactroides (Reeve, 1854) is a sand mollusc with historical and socioeconomic importance in Brazil, Uruguay and Argentina. A guaranteed form to access a successful reestablishment of the species in their natural environment is ...
JUAN J.S. SANTOS   +5 more
doaj   +1 more source

Ticket to spawn: Combining economic and genetic data to evaluate the effect of climate and demographic structure on spawning distribution in Atlantic cod

open access: yesGlobal Change Biology, 2018
Climate warming and harvesting affect the dynamics of species across the globe through a multitude of mechanisms, including distribution changes. In fish, migrations to and distribution on spawning grounds are likely influenced by both climate warming ...
Ø. Langangen   +10 more
semanticscholar   +1 more source

Evaluation of waste paper for cultivation of oyster mushroom (Pleurotus ostreatus) with some added supplementary materials

open access: yesAMB Express, 2020
Mushroom cultivation is an economically feasible bio-technological process for conversion of various lignocellulosic wastes. The aim of this study was to evaluate the suitability of waste paper supplemented with corn stalk and wheat bran for oyster ...
Teklemichael Tesfay   +3 more
doaj   +1 more source

Tropical hilsa shad (Tenualosa ilisha): Biology, fishery and management

open access: yesFish and Fisheries, 2018
Tropical hilsa shad, which is an anadromous fish migrating from the sea to spawn in freshwater river, constitutes an important fishery in some Asian and Middle East countries, particularly in Bangladesh.
M. Hossain   +6 more
semanticscholar   +1 more source

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