Results 101 to 110 of about 312,242 (309)

The fishery significance of a pond-type riverbed water-lifting reservoir on small watercourses of the Volga region by the example of the Truev river

Известия высших учебных заведений. Поволжский регион: Естественные науки
Background. The article considers a special type of reservoirs – partially regulated sections of riverbeds and streams formed by hydraulic structures and other artificial obstacles on the example of the Nadezhdinskiy reservoir on the Truev river in Penza
Alik Yu. Asanov
doaj   +1 more source

Size spectra assess social-ecological impacts on Amazonian fish assemblages

Ecological Indicators
Finding easily accessible indicators to assess the biodiversity conservation is crucial in regions where long-term monitoring data is deficient. This is particularly true for tropical freshwater ecosystems, which house most of the known fish biodiversity
Victoria J. Isaac, Leandro Castello, Nelson A. Gouveia, Jansen A.S. Zuanon, Fernanda A. Martins, Rivetla Edipo Araujo Cruz, Rodrigo O. Campos, Caroline C. Arantes, Gabriel C. Borba, Morgana Carvalho de Almeida, Claudia Pereira de Deus, Carolina R.C. Dória, Marilia Hauser, Carlos E. Freitas, Tommaso Giarrizzo, Alexandre P. Hercos, Giulia C. Lopes Carvalho, Elineide E. Marques, Raimundo Nonato G. Mendes-Júnior, Ualerson Iran Peixoto, Nelson Silva Pinto, Renato A.M. Silvano, Flavia K. Siqueira Souza, Ariana Cella-Ribeiro, Gislene Torrente-Vilara, Kedma C. Yamamoto, Filipe M. França   +26 more
doaj   +1 more source

CLIMATE CHANGES AND CURRENT STATE OF BIOTA IN THE RUSSIAN WATERS OF THE FAR-EASTERN SEAS

Известия ТИНРО, 2019
Discussion about limiting influence of climate conditions on dynamics of the pacific salmon populations and generally on biological resources of the Far-Eastern Seas is continuing.
V. P. Shuntov, O. A. Ivanov
doaj   +1 more source

Temperature Sensitivity and Adaptation of Cereal Yields: Empirical Evidence From Italy

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This paper investigates the evolving temperature sensitivity and climate adaptation of cereal yields in Italy from 1952 to 2023, using province‐level data for maize, common wheat, and durum wheat. Employing panel data econometric methods, we estimate yield responses to heat exposure, changes in sensitivity over time, and adaptation to climate ...
Paolo Nota, Giacomo Coughlan, Alessandro Olper   +2 more
wiley   +1 more source

Developing a viable fish farming industry in Nigeria -- an alternative strategy to the strategy in the Green Revolution Programme [PDF]

, 1983
A study was embarked upon with the twin objectives of reviewing the Green Revolution Strategy for accelerating fish production in the country and proposing an alternative strategy, a private sector approach.
Oyatoye, E.T.O.
core  

Do Tax Incentives for Farmland Leases Increase Farm Supply? Evidence From Iowa's Beginning Farmer Tax Credit

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT In recent decades, agriculture has become increasingly concentrated through horizontal mergers and acquisitions via corporate entities, and policy makers are concerned this will be exacerbated by the aging population of farm operators. To reduce market concentration in agriculture, many states have enacted policies to entice new prospective ...
Justin M. Ross, Wesley M. Zebrowski, Julia C. D. Valliant   +2 more
wiley   +1 more source

Eficiencia de absorción de nutrientes de Gracilaria chilensis y Ulva lactuca en un sistema multitrófico integrado con el abalón rojo Haliotis rufescens [PDF]

, 2014
Indexación: Web of Science; Scielo.ABSTRACT. The current study examined the nutrient uptake efficiency of Ulva lactuca and Gracilaria chilensis cultivated in tanks associated with the wastewater of a land-based abalone culture.
Bulboa, Cristian, Macchiavello, Juan
core  

Can outsourcing pest and disease control help reduce pesticide expenditure? Evidence from rice farmers

Agribusiness, EarlyView.
Abstract Outsourcing pest and disease control (PDC) has grown rapidly worldwide, especially in developing countries. Although numerous studies have investigated various advantages of outsourcing PDC, little is known about its impact on pesticide expenditure.
Pengcheng Wang, Wanglin Ma, Mengling Diao   +2 more
wiley   +1 more source

Staging an Experience of Cultural Heritage Preservation: Consumers' Willingness to Pay for Heirloom Rice in the Philippines

Agribusiness, EarlyView.
ABSTRACT The Cordillera Administrative Region in the Philippines is home to terraced rice embedded in centuries of cultural heritage. However, weak market incentives threaten sustained production, jeopardizing indigenous communities' cultural heritage and the in situ biodiversity of rice genetic resources.
Kofi Britwum, Matty Demont
wiley   +1 more source

MONITORING ZOOBENTOS PRODUCTIVITY AT THE REGULATED SURA RIVER SECTION IN PENZA REGION

Известия высших учебных заведений. Поволжский регион: Естественные науки, 2020
Background. Zoobenthos is an essential component of the fish food base. Therefore, an assessment of fish productivity for this indicator is necessary for any comprehensive fisheries research in water bodies.
A. Yu. Asanov
doaj   +1 more source