Results 71 to 80 of about 6,694 (212)
Advancing Ecological Understanding and Sustainable Management of Small Pelagic Fish
Fish and Fisheries, Volume 27, Issue 4, Page 850-864, July 2026.ABSTRACT Small pelagic fish (SPF) are critical to the trophodynamic structure and function of marine systems and support some of the most valuable and socially important fisheries worldwide. Their “boom and bust” population dynamics, shifts in distribution, and importance as forage resources for other fish stocks place unique challenges to assessing ...
Myron A. Peck +22 more
wiley +1 more source
Acta Herpetologica, 2017 Enyalius perditus is a semi-arboreal lizard species whose reproduction is poorly known. Here, we combine information obtained from preserved and live specimens to describe the reproductive timing (vitellogenesis, gravidity, and egg-laying) and fecundity (
Serena Migliore +3 more
doaj +1 more source
Gonadal Histology and Spawning Season of Otolithoides pama in the Thanlwin River Estuary
Aquaculture, Fish and Fisheries, Volume 6, Issue 3, June 2026.ABSTRACT The spawning season of Otolithoides pama in the Thanlwin estuary was estimated through gonadosomatic index (GSI) and histological analyses of gonadal development. A total of 290 specimens (240 females and 50 males) were collected monthly from 5 sites—Ahlat, Kyauk Tan, Daye, Nyaung Pin Seik and Tarana—between January and December 2024.
Thet Htwe Aung
wiley +1 more source
Nuclear Receptors in Mosquito Vitellogenesis [PDF]
American Zoologist, 1999 Synopsis. Vitellogenesis in insects involves the coordinated activity of the fat body, which produces large amounts of yolk protein precursors (YP), and oocytes, which specifically accumulate these proteins. The expression of YP genes is achieved through strict sex-, tissue-, and hormone-specific control in the female fat body.
ALEXANDER S. RAIKHEL +2 more
openaire +1 more source
The dynamic landscape of gene regulation during Bombyx mori oogenesis
BMC Genomics, 2017 Background Oogenesis in the domestic silkworm (Bombyx mori) is a complex process involving previtellogenesis, vitellogenesis and choriogenesis. During this process, follicles show drastic morphological and physiological changes.
Qiang Zhang +4 more
doaj +1 more source
Fisheries Management and Ecology, Volume 33, Issue 3, Page 601-611, June 2026.ABSTRACT Greenland halibut (Reinhardtius hippoglossoides) is a deep‐water flatfish which lives at temperatures of 1°C–4°C and produces large eggs (> 3 mm). The combination of low temperatures and large eggs has resulted in an unusual ovary development cycle, with vitellogenesis taking more than 1 year.
James Kennedy +3 more
wiley +1 more source
Journal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.Abstract The red swamp crayfish (Procambarus clarkii) is widely cultured and consumed due to its palatable meat and high nutritional value. It also becomes the most valuable crustacean species because of its amazing yield and economic value in China. However, P.
KeLei Zhang +7 more
wiley +1 more source
Frontiers in Marine Science, 2020 In Eriocheir sinensis aquaculture, crabs feeding on an artificial diet without steroid hormones available in ice-fresh fish or snails show delayed ovarian maturation and late listing.
Xiaochuan Zheng +7 more
doaj +1 more source
Histology of the oocytes of Lutjanus peru (Nichols and Murphy, 1922) (Pisces: Lutjanidae)
Ciencias Marinas, 2001 The distinctive characteristics found in each of the development stages of the oocyte in the ovary of Lutjanus peru (Pacific red snapper) are described.
G Lucano-Ramírez +3 more
doaj +1 more source
Journal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.Abstract Advancing knowledge of the molecular mechanisms governing vitellogenesis and spawning in the black tiger prawn, Penaeus monodon, requires an efficient method for identifying ovarian stages. Several physiological and molecular tools have been employed to define these stages in laboratory studies.
Gourab Chowdhury +5 more
wiley +1 more source