Results 71 to 80 of about 27,770 (311)
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2007 In 2001, we studied 2600 sturgeon fingerlings including: 2242 Acipenser persicus, 150 Acipenser stellatus, 150 Acipenser nudiventris and 58 Huso huso from Shahid Beheshti and Yousefpour hatcheries for parasitic infection.
A. Shenavar masoleh1; M. Masoumian2; M. Sattari3; S. Bazari moghadam; J. Jalilpor; Sh. Shafiei; N. Noshi masoleh; M. Noshali; M. Masomzadeh
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Non‐Lethally Produced Chemical Risk Cues Elicit Antipredator Responses in a Common Canadian Minnow
Ethology, EarlyView.ABSTRACT Predation risk exerts significant pressure on the survival of prey species and has many indirect impacts on their habitat use, energy allocation, and community dynamics. Prey must consistently assess their surroundings by using multiple information sources to monitor predation risk and respond accordingly.
Veronica Groves +3 more
wiley +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
THE ABUNDANCE AND SPECIES COMPOSITION OF STURGEON IN THE NORTHERN CASPIAN SEA
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2008 This study was carried out in the northern Caspian Sea on Gidrobiolog vessel in summer 2006 to assess the abundance and species composition of sturgeons. We used bottom trawl (9m) and gillnets with mesh size 60, 110, 250 and 29Omm.
D. Kor; M. Fatemi; F. Keymaram
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A comparison of methods for determining ploidy in white sturgeon (Acipenser transmontanus) [PDF]
, 2019 Release of sturgeon with abnormal ploidy into the wild may result in reduced fitness due to lowered fertility in the F2 and subsequent generations. Further, there is evidence that ploidy affects reproductive development and caviar yield.
Fiske, JA +6 more
core
Designing Sortable Guilds for Multispecies Selective Fish Passage
Fish and Fisheries, EarlyView.ABSTRACT The importance of connectivity for freshwater organisms is widely recognised, yet in‐stream barriers associated with population declines and increased risk of extinction remain globally ubiquitous. Despite their negative consequences, these barriers can protect aquatic communities by limiting the spread of invasive species, leading to ...
David M. Benoit +8 more
wiley +1 more source
, 2018 The aim of this study was to investigate the effects of dietary taurine and methionine on Persian sturgeon (Acipenser persicus) fed with plant-based diets. To this purpose, sturgeons were fed with either of methionine + taurine-supplemented (MT), without
Seyyed Morteza Hoseini +3 more
semanticscholar +1 more source
Acta Biochimica Polonica, 2019 Acipenser stellatus represents a species of great economical interest due to its roe used for caviar production. Therefore, it has been intensively captured for decades and nowadays, this species is on the verge of extinction. As a consequence, Acipenser
I. E. Florescu Gune +11 more
semanticscholar +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. In May 2021, a large number of deaths characterized by superficial hemorrhage and liver damage occurred in a sturgeon farm in Yichang, Hubei Province, which posed a ...
Mengwei Zhang +9 more
openaire +3 more sources
Studying the manner of sturgeon fishes migration to Gorganrud and Tajan rivers
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1997 One year study was carried out to understand the sturgeon fish’s migration to Gorganrud & Tajan Rivers from September 1993. Two different catching stations were selected in each river with gillnetting method.
F. Laloei
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