Results 61 to 70 of about 27,774 (251)

An investigation on the sturgeon stocks in southern Caspian Sea [PDF]

open access: yes, 2007
We launched a summer and winter cruise using two fishing vessels to assess the stocks of the sturgeon fish in the southern coasts of the Caspian Sea in the year 2004-2005.
Kaymaram, F.   +3 more
core  

Efficacy of Zingiber officinale for the Modulation of Growth, Feed Utilisation and Health Status of Magur (Clarias batrachus) in Cage Culture System

open access: yesAquaculture, Fish and Fisheries, Volume 5, Issue 3, June 2025.
ABSTRACT This study investigated the effects of dietary ginger (Zingiber officinale) powder on the growth, feed utilisation, innate immune response, serum biochemical parameters and haematological health of walking catfish (Clarias batrachus) in a cage culture system.
Nasib Uddin   +5 more
wiley   +1 more source

Estimates of avian collision with power lines and carcass disappearance across differing environments [PDF]

open access: yes, 2017
Data on collisions of birds with high-voltage electric power lines are scarce and are often gathered without protocols for the correction of carcass disappearance.
ABS Energy Research   +27 more
core   +1 more source

Towards a better understanding of avian collision in wind energy facilities using automatic detection systems

open access: yesJournal of Applied Ecology, Volume 62, Issue 6, Page 1437-1448, June 2025.
Data from automatic detection systems are a promising non‐invasive approach that requires few human and logistical resources to develop a more comprehensive bird collision risk mitigation strategy. They can be valuable to biodiversity stakeholders to highlight environmental factors that locally increase bird exposure and sensitivity, to avoid ...
Charlène Gémard   +4 more
wiley   +1 more source

A comparative study of alive and dead eleutheroembryo of Beluga (Huso huso) shape (5DPH) using geometric morphometric method [PDF]

open access: yes, 2012
High mortality of beluga prelarvae (Huso huso) occurs in hatcheries and this appears to be linked to various abnormalities. Hence, this study was conducted to compare the body shape of alive and dead beluga prelarvae (5DPH) and to find the patterns of ...
Eagderi, S.   +3 more
core  

Effects of wind farms on raptors: A systematic review of the current knowledge and the potential solutions to mitigate negative impacts

open access: yesAnimal Conservation, Volume 28, Issue 3, Page 334-352, June 2025.
Our review of 195 studies highlights the consensus on raptors’ avoidance behavior and population decline post‐wind farm installation, emphasizing the significant risks posed by mountaintop wind farms to soaring raptors. Adult raptor mortality, particularly among endangered species, and the elevated collision risks faced by young individuals underscore ...
I. Estellés‐Domingo   +1 more
wiley   +1 more source

POPULATION STRUCTURE OF STURGEONS IN THE COASTAL WATERS OF THE MAZANDARAN PROVINCE, SOUTH CASPIAN SEA

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2008
Diversity, distribution, catch per unit effort (CPUE) and population structure of sturgeon stocks in the Iran coastal areas of the Caspian Sea waters less than 10 meters deep was studied during 2003-2005.
D. Kor; F. Keymaram; M. Moghim; A. Janbaz; Gh. Daryanabard; F. Bagherzadeh
doaj  

Assessing the effects of partially replacing fishmeal with peanut meal on growth, body composition, digestibility and immunity in juvenile beluga (Huso huso)

open access: yesJournal of the World Aquaculture Society, Volume 56, Issue 3, June 2025.
Abstract In this feeding trial, the replacement of fishmeal (FM) with peanut meal (PM) was examined to assess its effects on growth performance, body composition, digestibility, and immunity in cultured juvenile beluga (Huso huso; initial weight: 132 ± 8.5 g). Four experimental diets were tested (3 replicates; 12 fish each), including a control diet (0%
Fatemeh Davoudi‐Sefidkohi   +2 more
wiley   +1 more source

Applied introduction of ecosystem service modeling of marine aquaculture: Approach for estimation of production and net present value (NPV)

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2017
Marine and coastal ecosystems have many benefits and different services for humans that marine aquaculture is one of the most important of these services. Southern coast of Caspian Sea particularly Mazandaran coast have great potential for development of
E Haghshenas; M Gholamalifard email ; N Mahmoudi
doaj  

The enrichment influences of Artemia urmiana with vitamin E and unsaturated fatty acids on growth, survival and salinity stress resistance in beluga (Huso huso) larvae [PDF]

open access: yes, 2008
VWe assessed the effects of Aremia urmiana nauplii enriched with vitamin E (α -tochopherol acetate, MERCK, Germany) and unsaturated fatty acids (EPA 18% and DHA 12%) on growth, survival and stress resistance of Beluga (Huso huso) larvae during six weeks.
Alimohammadi, A.A.   +3 more
core  

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