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1. Predation on schooling fish is shaped by encounters between prey during school formation using an Ideal Gas Model of animal movement

Author:
Derrick T. de Kerckhove; Brian J. Shuter
Source:
Ecological modelling 2022 v.470 pp. 110008
ISSN:
0304-3800
Subject:
stocking rate,   etc   ; forage fish; models; predation;     Show all 4 Subjects
Abstract:
... Fish schools reduce their predators' encounter rates not only by performing evasive maneuvers but also by increasing distances between prey patches. However, a similar challenge applies to isolated prey fish seeking refuge during periods of diel school formation. We demonstrate with an Ideal Gas movement model that as the stock sizes of a fish who forms schools daily decreases, school densities do ...
DOI:
10.1016/j.ecolmodel.2022.110008

2. Quantification and spatial distribution of aluminum in-use stocks in Henan Province, China

Author:
Shupeng Li; Zhe Wang; Tingan Zhang; Qiang Yue
Source:
Resources, conservation, and recycling 2022 v.186 pp. 106540
ISSN:
0921-3449
Subject:
stocking rate,   etc   ; aluminum; power generation; China;     Show all 4 Subjects
Abstract:
... The accounting of aluminum in-use stocks (ALIS) has received widespread attention, but the systematic assessment of China's ALIS at the provincial level remains unclear. Based on a bottom-up approach, this study utilizes Henan Province as an example to investigate the ALIS and its spatial patterns at China's provincial level. In 2017, the total and per capita of ALIS in Henan were 12 Tg and 125 kg ...
DOI:
10.1016/j.resconrec.2022.106540

3. Productivity and Management of Renewable Resources: Why More Efficient Fishing Fleets Should Fish Less

Author:
Eric Nævdal
Source:
Environmental and resource economics 2022 v.81 no.3 pp. 409-424
ISSN:
0924-6460
Subject:
stocking rate,   etc   ; environmental economics; fish; fisheries management; renewable resources; resource management;     Show all 6 Subjects
Abstract:
... This article analyses the effect of productivity improvements on optimal fisheries management. It is shown that when harvest costs are independent of resource stock and the stock is below its steady state level, then for any given stock it is optimal to reduce harvest levels in response to a productivity increase unless optimal harvest rate is already zero. If harvest costs are stock dependent thi ...
DOI:
10.1007/s10640-021-00633-2

4. Yellow eel (Anguilla anguilla) density trends along the German part of the southern Baltic Sea between 2009 and 2020

Author:
Malte Dorow; Laura Kullmann; Melanie Buck; Jens Frankowski
Source:
Fisheries research 2023 v.257 pp. 106497
ISSN:
0165-7836
Subject:
stocking rate,   etc   ; Anguilla anguilla; eel; juveniles; population dynamics; research; Baltic Sea;     Show all 7 Subjects
Abstract:
... According to the recruitment indices provided by ICES for the years 2011–2021, the natural recruitment of the European eel remains at low level. However, fishery-dependent data series indicate an increasing trend in the southern Baltic Sea within recent years. In the light of the pan-European conservation efforts, the question is whether fishery-independent monitoring approaches can verify this po ...
DOI:
10.1016/j.fishres.2022.106497

5. Space use by semi‐free‐ranging cows on wetlands and its implication as a conservation management tool

Author:
Paweł Mirski
Source:
Restoration ecology 2022 v.30 no.3 pp. e13533
ISSN:
1061-2971
Subject:
stocking rate,   etc   ; autumn; ecological restoration; herds; landscapes; national parks; shrubs; spring; summer; wetlands;     Show all 10 Subjects
Abstract:
... Wetlands are often exposed to reed and shrub expansion that dominate their heterogeneous landscape and threaten species inhabiting open wetlands. The alternative to heavy‐machine mowing is grazing, which should be carried out without fencing in high‐value protected areas. To evaluate the effectiveness of semi‐free‐ranging cattle in sustaining and restoring the open landscape of heterogeneous wetla ...
DOI:
10.1111/rec.13533

6. Species differences, but not habitat, influence catch rate hyperstability across a recreational fishery landscape

Author:
Camille L. Mosley; Colin J. Dassow; John Caffarelli; Alexander J. Ross; Greg G. Sass; Stephanie L. Shaw; Christopher T. Solomon; Stuart E. Jones
Source:
Fisheries research 2022 v.255 pp. 106438
ISSN:
0165-7836
Subject:
stocking rate,   etc   ; fish; fisheries; freshwater; habitats; landscapes; population dynamics; population size; research; sport fishing; sports; variance;     Show all 12 Subjects
Abstract:
... In commercial and recreational fisheries, catch rate is often assumed to be proportional to stock size and is used by managers and fishers as an indicator of fishery sustainability. If catch rate is proportional to stock size, it can signal a decline of stocks and managers can impose restrictive harvest policies or recreational anglers can move to a new system and allow the over-exploited system t ...
DOI:
10.1016/j.fishres.2022.106438

7. Carbon sequestration potential in croplands in Lesotho

Author:
Selebalo Joseph Ramakhanna; Botle Esther Mapeshoane; Christian Thine Omuto
Source:
Ecological modelling 2022 v.471 pp. 110052
ISSN:
0304-3800
Subject:
stocking rate,   etc   ; algorithms; bulk density; carbon sequestration; climate; decline; models; soil depth; soil management; soil organic carbon; uncertainty; Lesotho;     Show all 12 Subjects
Abstract:
... Soil organic carbon (SOC) plays a crucial role in physical, chemical and biological soil properties and maintains the sustainability of cropping systems. However, SOC stocks in croplands decline due to lower carbon inputs and faster decomposition rates. Therefore, sustainable soil management (SSM) practices are crucial to replenish the carbon inputs. Mapping carbon (C) stocks and sequestration pot ...
DOI:
10.1016/j.ecolmodel.2022.110052

8. Subclinical mastitis in dairy cows in south-Asian countries: a review of risk factors and etiology to prioritize control measures

Author:
Md Saiful Bari; Md. Mizanur Rahman; Ylva Persson; Marjolein Derks; Md. Abu Sayeed; Delower Hossain; Shuvo Singha; Md. Ahasanul Hoque; Subramnian Sivaraman; Palika Fernando; Ijaz Ahmad; Abdul Samad; Gerrit Koop
Source:
Veterinary research communications 2022 v.46 no.3 pp. 621-640
ISSN:
0165-7380
Subject:
stocking rate,   etc   ; Escherichia; Staphylococcus; Streptococcus; cows; dairy industry; drainage; etiology; feces; hygiene; mastitis; risk; sanitation; therapeutics; udders; veterinary medicine; Bangladesh; India; Pakistan; Sri Lanka;     Show all 20 Subjects
Abstract:
... Mastitis is a major production disease, causing significant economic losses for dairy farmers in South-Asian countries, as well as other parts of the world. Udder health control programs (UHCP) have been established in developed countries as an effective strategy for mastitis control but have not yet been introduced in South-Asian low-income countries like Bangladesh, India, Pakistan, and Sri Lank ...
DOI:
10.1007/s11259-022-09948-x

9. A bioeconomic model of a fishery with saturated catch and variable price: Stabilizing effect of marine reserves on fishery dynamics

Author:
Ali Moussaoui; Pierre Auger
Source:
Ecological complexity 2021 v.45 pp. 100906
ISSN:
1476-945X
Subject:
stocking rate,   etc   ; bioeconomic models; equations; prices;     Show all 4 Subjects
Abstract:
... In this paper, we study a mathematical bio-economic model of a fishery with varying price. The three dimensional model describes the time evolution of the resource, the fishing effort and the price. The model is original because it considers a nonlinear harvesting function assumed to depend upon stock size and fishing effort with a saturation effect with respect to the resource as well as a price ...
DOI:
10.1016/j.ecocom.2020.100906

10. Strength and consistency of density dependence in marine fish productivity

Author:
Anna Rindorf; Mikael van Deurs; Daniel Howell; Eider Andonegi; Aaron Berger; Bjarte Bogstad; Noel Cadigan; Bjarki Þór Elvarsson; Niels Hintzen; Marie Savina Roland; Marc Taylor; Vanessa Trijoulet; Tobias van Kooten; Fan Zhang; Jeremy Collie
Source:
Fish and fisheries 2022 v.23 no.4 pp. 812-828
ISSN:
1467-2960
Subject:
stocking rate,   etc   ; biomass; marine fish; prediction; probability;     Show all 5 Subjects
Abstract:
... The correct prediction of the shape and strength of density dependence in productivity is key to predicting future stock development and providing the best possible long‐term fisheries management advice. Here, we identify unbiased estimators of the relationship between somatic growth, recruitment and density, and apply these to 80 stocks in the Northeast Atlantic. The analyses revealed density‐dep ...
DOI:
10.1111/faf.12650

11. Phylodynamic and phylogeographic reconstruction of porcine reproductive and respiratory syndrome virus (PRRSV) in Europe: Patterns and determinants

Author:
Giovanni Franzo; Giulia Faustini; Matteo Legnardi; Mattia Cecchinato; Michele Drigo; Claudia Maria Tucciarone
Source:
Transboundary and emerging diseases 2022 v.69 no.5 pp. e2175
ISSN:
1865-1674
Subject:
stocking rate,   etc   ; cross immunity; education; farmers; genetic variation; human population; industry; linear models; molecular epidemiology; phylogeography; porcine reproductive and respiratory syndrome; prioritization; swine; trade; vaccination; viruses; Europe;     Show all 17 Subjects
Abstract:
... Porcine reproductive and respiratory syndrome (PRRS) is among the most devastating diseases affecting the pig industry. Despite vaccines having been available for decades, the remarkable genetic variability of this virus, leading to poor cross‐protection, has limited their efficacy, and other measures must be adopted to effectively control the viral circulation. Some recent studies have investigat ...
DOI:
10.1111/tbed.14556

12. Carbon stocks differ among land-uses in agroforestry systems in western Canada

Author:
Zilong Ma; Edward W. Bork; Cameron N. Carlyle; Jonathan Tieu; Cole D. Gross; Scott X. Chang
Source:
Agricultural and forest meteorology 2022 v.313 pp. 108756
ISSN:
0168-1923
Subject:
stocking rate,   etc   ; carbon; carbon sinks; climate change; cropland; food security; forests; grasslands; humus; land use; meteorology; mineral soils; overstory; silvopastoral systems; species diversity; sustainable land management; tree age; trees; understory; Alberta;     Show all 20 Subjects
Abstract:
... Agroforestry systems (AFS) are increasingly being recognized as sustainable land-use systems that can increase carbon (C) sequestration and improve food security. However, the relative contributions of various C pools to the overall C stock of AFS and their dependence on factors such as tree age, species diversity and density is still unclear in many regions. Using an equivalent soil mass approach ...
DOI:
10.1016/j.agrformet.2021.108756

13. Fast Somatic Growth May Cause Recruitment Overfishing in Vendace (Coregonus albula) Gillnet Fisheries

Author:
Thomas Wanke; Uwe Brämick; Thomas Mehner
Source:
Annales zoologici Fennici 2021 v.58 no.4-6 pp. 271-287
ISSN:
0003-455X
Subject:
stocking rate,   etc   ; Coregonus; egg production; fecundity; gillnets; lakes; mortality; risk;     Show all 8 Subjects
Abstract:
... Vendace is commonly assumed at low risk to recruitment overfishing. This assumption has been confirmed for boreal stocks but might not apply at lower latitudes. We evaluated the risk of recruitment overfishing at the southernmost extent of vendace populations by comparing fecundity, natural mortality, and fishing mortality of two stocks differing in growth with those of a population not subject to ...
DOI:
10.5735/086.058.0412

14. Effects of Forestry Transformation on the Landscape Level of Biodiversity in Poland’s Forests

Author:
Ewa Referowska-Chodak; Bożena Kornatowska
Source:
Forests 2021 v.12 no.12 pp. -
ISSN:
1999-4907
Subject:
stocking rate,   etc   ; biodiversity; clearcutting; forests; habitat fragmentation; landscapes; politics; socialism; wood; Poland;     Show all 10 Subjects
Abstract:
... At all times, historical, political, economic, and social factors have affected the management of forests, with direct and indirect effects on the landscape. This study aimed to trace the impact of Poland’s forestry evolution over the last 75 years (1945–2020) on forest biodiversity at the landscape level. Five indicators were selected (forest area, forest fragmentation, protected forests, protect ...
DOI:
10.3390/f12121682

15. Maturation in the Barents Sea capelin – Contrasting length- and gonad-based metrics

Author:
N.O.A.S. Jourdain; E. Fuglebakk; S. Subbey
Source:
Fisheries research 2021 v.237 pp. 105880
ISSN:
0165-7836
Subject:
stocking rate,   etc   ; Mallotus villosus; fish; research; time series analysis; uncertainty; Barents Sea;     Show all 7 Subjects
Abstract:
... It is assumed that maturation in the Barents Sea capelin is length-dependent, and that fish of at least 14 cm will potentially spawn. Current assessment and management models for the stock are based on this assumption of constant maturity at length (MaL). Using data from scientific surveys, this paper examines the validity of the constant MaL assumption, and contrasts it with maturation based on e ...
DOI:
10.1016/j.fishres.2021.105880

16. Linking soil organic carbon stock to microbial stoichiometry, carbon sequestration and microenvironment under long-term forest conversion

Author:
Rudong Zhao; Mei He; Pengyun Yue; Lin Huang; Feng Liu
Source:
Journal of environmental management 2022 v.301 pp. 113940
ISSN:
0301-4797
Subject:
stocking rate,   etc   ; Cryptomeria; Cunninghamia lanceolata; Metasequoia glyptostroboides; carbon sequestration; carbon sinks; deforestation; environmental management; fine roots; forest litter; forests; homeostasis; microbial biomass; nitrogen; phosphorus; soil depth; soil organic carbon; soil respiration; stoichiometry; structural equation modeling; trees;     Show all 21 Subjects
Abstract:
... Forest conversion can drastically impact carbon (C) and nutrient processes and microbial stoichiometry, which will modify soil organic C (SOC) stock. However, SOC stock dynamics and its underlying mechanisms induced by long-term forest conversion remain unclear. Three well-protected plantations converted from natural forests for 36 years were compared, i.e., Cryptomeria fortunei (CF), Metasequoia ...
DOI:
10.1016/j.jenvman.2021.113940

17. Identifying overexploitation in the coastal Greenland halibut fishery in the Disko Bay using static bioeconomic modelling

Author:
Theresa Fredenslund
Source:
Fisheries research 2022 v.254 pp. 106417
ISSN:
0165-7836
Subject:
stocking rate,   etc   ; Reinhardtius hippoglossoides; bioeconomics; boats; fish; fisheries; growth models; income; research; Greenland;     Show all 10 Subjects
Abstract:
... The North Atlantic Fisheries Organization (NAFO) has continuously lowered their advice regarding the Total Allowed Catch (TAC) for the coastal Greenland halibut fisheries in Western Greenland. This is due to concerns of overexploitation of the fishery. This paper investigates how the fishing intensity in the fishery for Greenland halibut (Reinhardtius hippoglossoides) in the Disko Bay, Greenland, ...
DOI:
10.1016/j.fishres.2022.106417

18. Comparative Pasture Management on Canadian Cattle Ranches With and Without Adaptive Multipaddock Grazing

Author:
Edward W. Bork; Timm F. Döbert; Jessica S.J. Grenke; Cameron N. Carlyle; James F. Cahill; Mark S. Boyce
Source:
Rangeland ecology & management 2021 v.78 pp. 5-14
ISSN:
1550-7424
Subject:
stocking rate,   etc   ; cattle; ecosystems; forage; grasslands; greenhouses; pasture management; pastures; rangelands; soil carbon; Canada;     Show all 11 Subjects
Abstract:
... Significant interest exists in the potential for specialized grazing systems, including adaptive multipaddock (AMP) grazing, to enhance grassland health and function. However, specific pasture management practices associated with AMP grazing at the ranch level remain poorly understood in comparison with more regionally representative management systems. As part of a larger study examining grazing ...
DOI:
10.1016/j.rama.2021.04.010

19. Fisheries management under incomplete information by optimal stochastic control and Hidden Markov Model filter

Author:
Xi Chen
Source:
Fisheries research 2021 v.243 pp. 106047
ISSN:
0165-7836
Subject:
stocking rate,   etc   ; Markov chain; biomass; economic performance; fish; fisheries; issues and policy; research; uncertainty;     Show all 9 Subjects
Abstract:
... This paper deals with mathematical modelling of strategies in harvesting of fish populations. Since too aggressive harvesting may have severe consequences, a cautious control of the process is called for. The determination of optimal harvesting based on the biomass size is made even more challenging since there is considerable uncertainty in the estimation of the stock size, the so-called incomple ...
DOI:
10.1016/j.fishres.2021.106047

20. Soil greenhouse gas emissions and grazing management in northern temperate grasslands

Author:
Zilong Ma; Bharat M. Shrestha; Edward W. Bork; Scott X. Chang; Cameron N. Carlyle; Timm F. Döbert; Laio Silva Sobrinho; Mark S. Boyce
Source:
Science of the total environment 2021 v.796 pp. 148975
ISSN:
0048-9697
Subject:
stocking rate,   etc   ; carbon dioxide; cattle; ecosystems; grasslands; greenhouse gases; soil density; soil water content; Alberta;     Show all 9 Subjects
Abstract:
... Adaptive multi-paddock (AMP) grazing, a grazing system in which individual paddocks are grazed for a short duration at a high stock density and followed by a long rest period, is claimed to be an effective tool to sustainably manage and improve grasslands and enhance their ecosystem services. However, whether AMP grazing is superior to conventional grazing (n-AMP) in reducing soil greenhouse gas ( ...
DOI:
10.1016/j.scitotenv.2021.148975