Results 21 to 30 of about 67,347 (207)
Ecology of Freshwater Fish, Volume 32, Issue 1, Page 209-231, January 2023., 2023 Abstract Sturgeons have a complex free‐embryo period extending from hatch to the initiation of exogenous feeding. Although available for some sturgeon species of the genus Acipenser, descriptions of the developmental stages of free embryos of the genus Scaphirhynchus are lacking.
Kimberly A. Chojnacki +4 more
wiley +1 more source
Fisheries Management and Ecology, Volume 30, Issue 1, Page 11-23, February 2023., 2023 Abstract Paddlefish, Polyodon spathula (Walbaum), provide an important snagging and bowfishing fishery below Gavins Point Dam in South Dakota. During 2009–2020, snagging catch rates of paddlefish decreased below Gavins Point Dam to presumed “normal” lower pre‐2004 levels, while bowfishing catch (harvest) rates significantly increased during 2000–2020 ...
William J. Radigan +3 more
wiley +1 more source
Czech Journal of Animal Science, 2011 The aim of the experiment was to determine the impact of sorting on the growth, survival, and cannibalism of pikeperch larvae during intensive culture in recirculation systems.
M. Szczepkowski +3 more
doaj +1 more source
Fish and macroinvertebrate assemblages reveal extensive degradation of the world's rivers
Global Change Biology, Volume 29, Issue 2, Page 355-374, January 2023., 2023 The biological condition of rivers was assessed for 64 study regions of the world, based on macroinvertebrate and fish assemblages collected at 72,275 and 37,676 river sites, respectively. Globally, only 50% of macroinvertebrate sites and 42% of fish sites were in Good condition, whereas 21% and 29% were Severely Impaired. In some regions less than 25%
Maria João Feio +29 more
wiley +1 more source
Recent advances in sturgeon nutrition. [PDF]
, 2017 Sturgeons are fish species of biological and economical importance, and most of them are endangered, vulnerable or rare because of their large size, late sexual maturity, long period between spawning, and longevity.
Hung, Silas SO
core +2 more sources
Global Networks, Volume 23, Issue 1, Page 132-149, January 2023., 2023 Abstract This paper evaluates ways in which labour issues in global value chains for medical gloves have been affected by, and addressed through, the COVID‐19 pandemic. It focuses on production in Malaysia and supply to the United Kingdom's National Health Service and draws on a large‐scale survey with workers and interviews with UK government ...
Alex Hughes +7 more
wiley +1 more source
Frontiers in Cellular and Infection Microbiology, 2022 Hybrid sturgeon is the main species of sturgeon cultured in China, with the advantages of a fast growth rate, early sexual maturity, fertile offspring, and more stable genetic traits.
Mengwei Zhang +9 more
doaj +1 more source
The complete mitochondrial genome of Dabry’s sturgeon (Acipenser dabryanus)
Mitochondrial DNA. Part B. Resources, 2017 The complete mitochondrial genome of Dabry’s sturgeon (Acipenser dabryanus) was first determined in this study. The mitochondrial DNA is circular molecule (16,437 bp in length) with a typical vertebrate mitochondrial gene arrangement, including 13 ...
Juanjuan Liu +5 more
doaj +1 more source
Archives of Polish Fisheries, 2018 The aim of the study was to determine the impact of different feed rations (0.5, 0.8, 1.1% fish biomass) on the rearing parameters of pikeperch, Sander lucioperca (L.), reared in a recirculating aquaculture system. The study comprised two experiments. In
Kozłowski Michał +3 more
doaj +1 more source
Atlantic Sturgeon Spatial and Temporal Distribution in Minas Passage, Nova Scotia, Canada, a Region of Future Tidal Energy Extraction. [PDF]
PLoS ONE, 2016 In the Bay of Fundy, Atlantic sturgeon from endangered and threatened populations in the USA and Canada migrate through Minas Passage to enter and leave Minas Basin.
Michael J W Stokesbury +7 more
doaj +1 more source