Results 11 to 20 of about 958 (165)

Disputing nature in the Anthropocene: technology as friend and foe in the struggle to conserve wild Atlantic salmon (Salmo salar)

open access: yesEcology and Society, 2019
The Anthropocene, simply put, is characterized by the recognition that natural processes are inextricably entwined with human influence. Against this backdrop, managing natural resources needs to be fundamentally rethought as balancing human-nature ...
Hannah L. Harrison   +3 more
doaj   +1 more source

Hatchlings of the Marine Turtle Lepidochelys olivacea Display Signs of Prenatal Stress at Emergence after Being Incubated in Man-Made Nests: A Preliminary Report

open access: yesFrontiers in Marine Science, 2017
Egg translocation and incubation in man-made nests (MMN) are common conservation practices through marine turtle hatcheries worldwide. These measures have been associated with reduced hatching rates, altered hatchling sex ratio, fetal dysmorphic ...
Ma. A. Herrera-Vargas   +6 more
doaj   +1 more source

High salmon density and low discharge create periodic hypoxia in coastal rivers

open access: yesEcosphere, 2017
Dissolved oxygen (DO) is essential to the survival of almost all aquatic organisms. Here, we examine the possibility that abundant Pacific salmon (Oncorhynchus spp.) and low streamflow combine to create hypoxic events in coastal rivers.
Christopher J. Sergeant   +3 more
doaj   +1 more source

Impacts of climate change on fish hatchery productivity in Bangladesh: A critical review

open access: yesHeliyon, 2022
Bangladesh is among the countries most vulnerable to climate change due to its geographical location. Climate change issues have become major concerns in aquaculture industry, particularly for fish hatchery productivity.
Mohammad Abu Baker Siddique   +7 more
doaj   +1 more source

ECONOMICS OF WILD TURKEY MANAGEMENT

open access: yesWildlife Society Bulletin, 1975
Questionnaires were mailed to the 50 state wildlife agencies and 177 private turkey shooting preserves. Forty‐seven agencies and 58 private preserves responded. State responses indicated a general lack of information on expenditures for turkey management.
James C. Kroll   +2 more
doaj   +1 more source

Variability of key-performance-indicators in commercial gilthead seabream hatcheries

open access: yesScientific Reports, 2022
Skeletal abnormalities are one of the most important key-performance-indicators (KPIs) in finfish hatcheries. Coping with the problem of skeletal abnormalities relies on the understanding of the link between the variability in the rearing conditions, and
Chara Kourkouta   +4 more
doaj   +1 more source

Spatial distribution and interannual variability of catches for pink salmon of artificial origin in the waters of eastern coast of Sakhalin Island in modern times

open access: yesИзвестия ТИНРО, 2021
Mixed herds of pink salmon including the fish of both artificial and natural origin are exploited by fishery in many areas of Sakhalin Island. To separate the fish of different origin, large-scale tagging of the juveniles otoliths is conducted at salmon ...
M. Yu. Stekolshchikova
doaj   +1 more source

تحليل تغير الإنتاج الداجني فى ناحية برما بمركز طنطا خلال الفترة(2013 – 2024) باستخدام نظم المعلومات الجغرافية [PDF]

open access: yesMağallaẗ Kulliyyaẗ Al-Adāb Bi-Qinā
تهدف هذه الدراسة إلى تحليل التغيرات التي طرأت على الإنتاج الداجني في ناحية برما بمركز طنطا خلال الفترة من عام 2013 إلى عام 2024، وذلك من حيث معدلات التغير في الإنتاج، والعوامل المؤثرة فيه، والآثار الاقتصادية المترتبة عليه، بهدف تقديم مقترحات لدعم هذا ...
أحمد أبواليزيد قطب حبيب
doaj   +1 more source

Genetic diversity and aquaculture conservation for a threatened Neotropical catfish [PDF]

open access: yesNeotropical Ichthyology, 2020
Due to the ecological importance of Lophiosilurus alexandri, the present work evaluated its genetic representativeness by comparing wild stocks to broodstocks that were kept at three restocking hatcheries along the São Francisco River.
Renata S. Farias   +8 more
doaj   +1 more source

‘Do you care about the river?' A critical discourse analysis and lessons for management of social conflict over Atlantic salmon (Salmo salar) conservation in the case of voluntary stocking in Wales

open access: yesPeople and Nature, 2019
Stakeholders with shared interests in fish conservation often disagree about which specific conservation measures are appropriate, leading to conflicts with sometimes long‐lasting and disruptive social and political effects.
Hannah L. Harrison   +3 more
doaj   +1 more source

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