Results 1 to 10 of about 439 (109)
Degeneration of postovulatory follicles of the Bay of Biscay anchovy (Engraulis encrasicolus L.)
Scientia Marina, 2008 The degeneration of postovulatory follicles (POFs) in time and at different temperatures was studied for the Bay of Biscay anchovy. For this purpose a key of 7 POF stages, solely defined on the basis of their histological degeneration characteristics ...
Ana Alday +5 more
doaj +4 more sources
Evaluation of the frequency of skipped spawning in Norwegian spring-spawning herring
Journal of Sea Research, 2011 Based upon an under-representation of second time spawners on the spawning grounds between 1935 and 1973, researchers have suggested that Norwegian spring-spawning (NSS) herring (Clupea harengus) frequently skip their second spawning event. In order to evaluate this claim with direct evidence, herring were collected over a period of three years from ...
James Kennedy +2 more
exaly +2 more sources
Scientia Marina, 2007 Vitellogenesis, oocyte maturation pattern, spawning rhythm, spawning frequency, batch fecundity and oocyte diameter-frequency distribution of the tigertooth croaker, Otolithes ruber (Schneider, 1801) in Kuwaiti waters were investigated from March 1999 to
Stephen Dadzie
doaj +4 more sources
PLoS ONE, 2018 Otolith strontium and multi-year mark-recapture information were used to characterize associations between migration patterns and spawning frequencies in an anadromous Dolly Varden (Salvelinus malma) population (Rat River, Northwest Territories, Canada ...
Colin P Gallagher +3 more
doaj +4 more sources
Spawning frequency of Sardina pilchardus (Walb.) off the Spanish North Atlantic coast in 1997
Fisheries Research, 2000 This paper presents the spawning fraction and spawning frequency estimates of Sardina pilchardus off the North Atlantic Spanish coast in March 1997 using the Postovulatory Follicle Method. The fraction of mature female sardine with less than 48-h-old postovulatory follicles averaged 0.18 (standard deviation = 0.08), indicating that the mean interval ...
Quintanilla-Hervás, L.F. (Luis Francisco) +1 more
exaly +3 more sources
Variation in the frequency of skipped spawning in Atlantic cod (Gadus morhua) off Newfoundland and Labrador [PDF]
ICES Journal of Marine Science, 2006 Abstract Macroscopic maturity data collected between January and March of 1978–2004 during groundfish surveys were analysed to determine the frequency of skipped spawning for Atlantic cod (Gadus morhua) populations in the Northwest Atlantic.
R.M. Rideout, M.J. Morgan, G.R. Lilly
exaly +3 more sources
The influence of water turbidity on the spawning success of giant gourami Osphronemus goramy Lacepède, 1801 [PDF]
E3S Web of Conferences, 2023 The natural spawning of gourami (Osphronemus goramy Lac.) is influenced by various factors, including both intrinsic fish factors and external conditions like water quality, which significantly affect the spawning process's success.
Sularto +2 more
doaj +1 more source
Improvement of livebearer fish reproductive performance using Oocyte Developer (OODEV) [PDF]
E3S Web of Conferences, 2021 Livebearer fish have a unique reproduction by internal fertilization without supplied nutrition from parents. However, increasing the frequency of spawning remains unknown.
Iskandar Andri +2 more
doaj +1 more source
Fishes, 2023 In South America, knowledge of major spawning sites is crucial for maintaining migratory fish populations. In this study, we aimed to understand the spatio-temporal distribution of fish eggs in the upper São Francisco River using high sampling frequency ...
Paulo Santos Pompeu +7 more
doaj +1 more source
Fishes, 2022 Daily growth patterns and their relationship with reproduction was analyzed in the European hake from the Galician Shelf, where it shows a very protracted spawning with three spawning peaks.
Cristina García-Fernández +2 more
doaj +1 more source