Results 71 to 80 of about 19,284 (225)
Mechanical shock during egg de-adhesion and post-ovulatory ageing contribute to spontaneous autopolyploidy in white sturgeon culture (Acipenser transmontanus) [PDF]
, 2020 Spontaneous autopolyploidy, a 1.5x increase in genome size resulting from second polar body retention after fertilization, has been documented in cultured sturgeons, with the proportion of spontaneous autopolyploid progeny ranging widely among maternal ...
Conte, FS +6 more
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Journal of Fish Biology, EarlyView.Abstract Understanding the factors that shape population genetic structure is crucial for advancing evolutionary studies and developing effective management and conservation strategies. The northern pike (Esox lucius L.) is a top teleost predator that inhabits fresh and brackish water environments in the northern hemisphere.
Alfonso Diaz‐Suarez +3 more
wiley +1 more source
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2017 The presence of heavy metals in our environment has been of great concern because of their toxicity when their concentration is more than the permissible level. These metals enter in the environment by different ways e.g. industrial activities.
A Mohammad Salehi; Velayatzadeh Velayatzadeh; N Karami Rad
doaj
ارتباط هورمونهای استروئیدی با برخی خصوصیات بیولوژیکی گناد در تاسماهی سیبری (Acipenser baeri) و ماهی استرلیاد (Acipenser ruthenus) [PDF]
مجله بهرهبرداری و پرورش آبزیان, 2015 ارتباط بین هورمونهای جنسی ( تستوسترون، 17-بتا استرادیول و پروژسترون) با وزن ماهیان ماده و برخی از خصوصیات بیولوژیکی گناد (درصد لقاح، میزان تخم سیال، شاخص گنادوسوماتیک، شاخص قطبیت و قطر تخمک) در 10 ماهی ماده از جمعیت مهاجر استرلیاد (Acipenser ruthenus ...
هاجر آذرین +3 more
doaj
Détermination de l'âge et croissance de l'Acipenser sturio L. de la Gironde
Knowledge and Management of Aquatic Ecosystems, 1959 La détermination de l'âge de 66 Esturgeons (Acipenser sturio L), péchés en 1958 en Gironde, a été réalisée par l'étude de coupes minces effectuées principalement dans le premier rayon de la nageoire pectorale.
MAGNIN É.
doaj +1 more source
, 1902 Published as part of Lambe L. M., 1902, New genera and species from the Belly River Series (mid-Cretaceous), pp. 25-81 in Geological Survey of Canada Contributions to Canadian Palaeontology 3 on page 29, DOI: 10.5281/zenodo ...
openaire +2 more sources
Journal of Fish Biology, EarlyView.Abstract Climate‐driven aquatic heatwaves pose an increasing threat to fish populations by inducing prolonged thermal stress. However, the resilience of teleosts to chronic heat exposure and their capacity for recovery remains poorly understood. This study investigated the effects of chronic high‐temperature exposure on juvenile zebrafish (Danio rerio).
Monique Adzijovski +3 more
wiley +1 more source
Ribogospodarsʹka Nauka Ukraïni, 2017 Purpose. Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae. The family is grouped into four genera: Acipenser, Huso, Scaphirhynchus and Pseudoscaphirhynchus. Four species may now be extinct.
V. Spyrydonov
doaj +1 more source
State of Florida Conservation Plan for Gulf Sturgeon (Acipenser oxyrinchus desotoi) [PDF]
, 2001 Gulf sturgeon are anadromous. They spend the cooler months (October or November through March or April) in estuarine or marine habitats, where they feed on benthic organisms such as isopods, amphipods, lancets, molluscs, crabs, grass shrimp, and ...
Wakeford, Anne
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Journal of Fish Biology, EarlyView.Abstract Effective fishery management policy depends on accurate life‐history data, particularly for harvested species. Longevity is a core life‐history trait that is directly related to annual survival and lifetime reproductive potential, but fish longevity is generally not well documented, particularly for long‐lived species.
Edward A. Baker +8 more
wiley +1 more source