Aquaculture Environment Interactions最新文献_第6页

Aquaculture carrying capacity of Nile tilapia Oreochromis niloticus and Nile crocodile Crocodylus niloticus in Lake Kariba, Zambia and Zimbabwe 赞比亚和津巴布韦卡里巴湖尼罗罗非鱼和尼罗鳄的养殖承载能力

IF 2.2 2区农林科学

Aquaculture Environment Interactions Pub Date : 2022-01-01 DOI: 10.3354/aei00427

K. te Velde, E. Peeters, M. Verdegem, J. Beijer

{"title":"Aquaculture carrying capacity of Nile tilapia Oreochromis niloticus and Nile crocodile Crocodylus niloticus in Lake Kariba, Zambia and Zimbabwe","authors":"K. te Velde, E. Peeters, M. Verdegem, J. Beijer","doi":"10.3354/aei00427","DOIUrl":"https://doi.org/10.3354/aei00427","url":null,"abstract":": Increased aquaculture production can improve food and nutrition security and economic growth in developing countries, but comes with environmental risks. In recent years, aquaculture has increased tremendously in Lake Kariba, which is located on the border between Zambia and Zimbabwe. We calculated the carrying capacity of aquaculture production in Lake Kariba using the Beveridge P balance model with data for lake-wide total-P concentrations, river flows and data from aquaculture farms and feed producers in the Lake Kariba area. The maximum permissible P load for aquaculture farms in Lake Kariba is 1.2 × 10 6 kg P yr −1 . Average loss of P to the environment in Lake Kariba through farming is 13.92 kg P t −1 for Nile tilapia Oreochromis niloticus and 92.5 kg P t −1 for Nile crocodile Crocodylus niloticus . Consequently, sustainable aquaculture carrying capacity in Lake Kariba is 86900 t yr −1 for O. niloticus and 13000 t yr −1 for C. niloticus . We expect aquaculture production in Lake Kariba to account for 71% of the total allowable aquaculture P load by 2028. The total-P concentration is expected to increase to 28.5 mg m −3 by 2028 due to growth in aquaculture, and its development should be carefully monitored. In future, we recom-mend that our predictions should be compared to observed changes in order to validate the model. We also illustrate that companies can greatly improve the carrying capacity of a system by improving the feed conversion ratio, the efficiency of nutrient uptake and the processing of mortalities.","PeriodicalId":8376,"journal":{"name":"Aquaculture Environment Interactions","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69594689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Combined models of fish growth, waste production, dispersal and deposition in spreadsheet format (XLDEPMOD) for predicting benthic enrichment from Atlantic salmon net-pen aquaculture 用电子表格格式(XLDEPMOD)预测大西洋鲑鱼网笼养殖中底栖生物富集的鱼类生长、废物产生、扩散和沉积组合模型

IF 2.2 2区农林科学

Aquaculture Environment Interactions Pub Date : 2022-01-01 DOI: 10.3354/aei00445

B. Hargrave, R. Filgueira, J. Grant, B. Law

引用次数: 0

Recognising trade-offs between welfare and environmental outcomes in aquaculture will enable good decisions 认识到水产养殖的福利和环境结果之间的权衡将有助于做出正确的决策

IF 2.2 2区农林科学

Aquaculture Environment Interactions Pub Date : 2022-01-01 DOI: 10.3354/aei00439

G. Macaulay, LT Barrett, T. Dempster

引用次数: 5

Analysing ecological carrying capacity of bivalve aquaculture within the Yellow River Estuary ecoregion through mass-balance modelling 利用质量平衡模型分析黄河口生态区内双壳类水产养殖的生态承载力

IF 2.2 2区农林科学

Aquaculture Environment Interactions Pub Date : 2022-01-01 DOI: 10.3354/aei00430

Q. Zhao, H. Huang, Y. Zhu, M. Cao, L. Zhao, X. Hong, J. Chu

{"title":"Analysing ecological carrying capacity of bivalve aquaculture within the Yellow River Estuary ecoregion through mass-balance modelling","authors":"Q. Zhao, H. Huang, Y. Zhu, M. Cao, L. Zhao, X. Hong, J. Chu","doi":"10.3354/aei00430","DOIUrl":"https://doi.org/10.3354/aei00430","url":null,"abstract":": As the largest aquaculture producer in the world, China is facing the challenge of maintaining sustainability while continuing to develop the aquaculture industry to meet socio-economic needs. Models of trophic structure and energy flow can be used to analyse ecological carrying capacity in order to determine whether a large and rapidly increasing aquaculture industry potentially puts sustainable development at risk. The Yellow River Estuary ecoregion in Shandong Province, China, is an ecologically important region, with extensive bivalve aquaculture that is increasing rapidly at an overall growth rate of 4% annually during recent decades. A trophic mass-balance model was used to analyse the ecological carrying capacity of bivalve aquaculture in this ecoregion. The biomass of cultured bivalves is currently 13.3 t km −2 and could be increased to 62.0 t km −2 without exceeding the ecological carrying capacity. Zooplankton are a key factor limiting the ecological carrying capacity and represent a sensitive functional group within the food web system in this ecoregion. At the ecological carrying capacity of cultured bivalves in the Yellow River Estuary ecoregion, harvests would amount to 353.2 t km −2 yr −1 or a total of 4.2 million t yr −1 in this region. If the current average rate of growth in aquaculture in China is maintained, under cautious development, the biomass of cultured bivalves would reach half of the estimated ecological carrying capacity (31.0 t km −2 ) after 20 yr. This implies that there is capacity for sustainable development of bivalve aquaculture under current environmental conditions.","PeriodicalId":8376,"journal":{"name":"Aquaculture Environment Interactions","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69594310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A statistical mechanistic approach including temperature and salinity effects to improve salmon lice modelling of infestation pressure 一种统计机制方法，包括温度和盐度的影响，以改善鲑鱼虱侵染压力的建模

IF 2.2 2区农林科学

Aquaculture Environment Interactions Pub Date : 2021-08-26 DOI: 10.3354/aei00410

L. Stige, K. Helgesen, H. Viljugrein, L. Qviller

{"title":"A statistical mechanistic approach including temperature and salinity effects to improve salmon lice modelling of infestation pressure","authors":"L. Stige, K. Helgesen, H. Viljugrein, L. Qviller","doi":"10.3354/aei00410","DOIUrl":"https://doi.org/10.3354/aei00410","url":null,"abstract":"Salmon lice Lepeophtheirus salmonis pose a major threat to the sustainable development of salmonid farming. To investigate effects of farm-origin salmon lice on wild salmonids, salmon lice dynamics are typically simulated using models that depend on experimentally determined rates of development, reproduction, mortality and infestation. Several recent studies provide new estimates of how these demographic rates depend on temperature and salinity. Here, we review and synthesize these studies and test if updating a salmon lice infestation model based on the new insights improves predictions of salmon lice infestations on salmon post-smolts in experimental cages in the sea. This model predicts spatiotemporal variation in infestation pressure based on weekly monitoring data of salmon lice and sea temperature in all salmonid fish farms in Norway, here supplemented by temperature and salinity data from a regional ocean model. Using data from 2012-2017 to select model formulation, we found the largest improvement in explanatory power by incorporating a salinity-dependent infestation rate. Updating functions for temperature-dependent egg production and infestation rates led to smaller improvements. Moreover, results suggest additional effects of temperature and a possible temperature-salinity interaction effect, not captured by the modelled processes. Out-of-sample predictions for experimental cage data from 2018-2020 confirmed that the uncertainty was realistically quantified, but also showed that associations of salmon lice infestations with salinity and temperature had changed. These results provide a field evaluation of experimental data and point to a knowledge gap regarding the combined effects of temperature and salinity on salmon lice infestations.","PeriodicalId":8376,"journal":{"name":"Aquaculture Environment Interactions","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69593333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Large-scale salmon farming in Norway impacts the epiphytic community of Laminaria hyperborea 挪威大规模养殖三文鱼对海带附生群落的影响

IF 2.2 2区农林科学

Aquaculture Environment Interactions Pub Date : 2021-03-25 DOI: 10.3354/AEI00392

M. O’Riain, Caroline S Armitage, T. Kutti, V. Husa, Skogen, T. Bekkby, M. Carvajalino‐Fernández, R. Bannister, C. White, K. M. Norderhaug, S. Fredriksen

{"title":"Large-scale salmon farming in Norway impacts the epiphytic community of Laminaria hyperborea","authors":"M. O’Riain, Caroline S Armitage, T. Kutti, V. Husa, Skogen, T. Bekkby, M. Carvajalino‐Fernández, R. Bannister, C. White, K. M. Norderhaug, S. Fredriksen","doi":"10.3354/AEI00392","DOIUrl":"https://doi.org/10.3354/AEI00392","url":null,"abstract":"Large-scale finfish farms are increasingly located in dispersive hard-bottom environments where Laminaria hyperborea forests dominate; however, the interactions between farm effluents and kelp forests are poorly understood. Effects of 2 levels of salmonid fish-farming effluents (high and low) on L. hyperborea epiphytic communities were studied by sampling canopy plants from 12 sites in 2 high-energy dispersive environments. Specifically, we assessed if farm effluents stimulated fast-growing epiphytic algae and faunal species on L. hyperborea stipes—as this can impact the kelp forest community composition—and/or an increased lamina epiphytic growth, which could negatively impact the kelp itself. We found that bryozoan biomass on the stipes was significantly higher at high-effluent farm sites compared to low-effluent farm and reference sites, resulting in a significantly different epiphytic community. Macroalgal biomass also increased with increasing effluent levels, including opportunistic Ectocarpus spp., resulting in a less heterogeneous macroalgae community at high-effluent farm sites. This habitat heterogeneity was further reduced by the high bryozoan biomass at the high-effluent sites. Such changes in the epiphyte community could have implications for the faunal community that relies on the epiphytes for food and refuge. On the kelp lamina, no clear response to farm effluents was found.","PeriodicalId":8376,"journal":{"name":"Aquaculture Environment Interactions","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43525477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Wild and farmed burbot Lota lota: differences in energy consumption and behavior during the spawning season 野生和养殖的河豚:产卵季节能量消耗和行为的差异

IF 2.2 2区农林科学

Aquaculture Environment Interactions Pub Date : 2021-03-11 DOI: 10.3354/meps00389

O. Slavík, P. Horký

{"title":"Wild and farmed burbot Lota lota: differences in energy consumption and behavior during the spawning season","authors":"O. Slavík, P. Horký","doi":"10.3354/meps00389","DOIUrl":"https://doi.org/10.3354/meps00389","url":null,"abstract":"Farmed fish released in a native environment can display different spawning behaviour compared to their wild conspecifics. In our study, farmed and wild burbot, a species recently introduced for aquacultural production, were equipped with electromyogram (EMG) radio tags. EMG biotelemetry allows a description of the spatial distribution of fish together with simultaneous measurements of individual energy consumption. Farmed burbot were released into the wild to simulate stocking or hatchery escape and were observed over a nocturnal phase during November to January. The observational period was assumed to cover the whole spawning season, including an expected peak of spawning activity determined according to egg production by naturally spawning burbot in an experimental seminatural river channel. We detected increased energy consumption and lower movement activity at the time of expected peak spawning for wild burbot only. Across the whole spawning season, farmed females showed lower movement activity and energy consumption than wild females, whereas the opposite results were found for farmed males. Farmed and wild fish kept larger distances between each other than the individuals within a group (farmed and wild) across the whole spawning season. The closest positions occurred between males and females in the wild group, while for farmed fish, the closest position was found within the same sex. Sexually conditioned energy consumption and spatial distribution differed between wild and farmed fish.","PeriodicalId":8376,"journal":{"name":"Aquaculture Environment Interactions","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43141885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Ecolabels can improve public perception and farm profits for shellfish aquaculture 生态标签可以提高公众对贝类养殖业的认识，提高养殖场的利润

IF 2.2 2区农林科学

Aquaculture Environment Interactions Pub Date : 2021-01-28 DOI: 10.3354/meps00388

M. Gray, Nicole Barbour, B. Campbell, Alexander J. Robillard, Alana Todd-Rodriguez, Huanhuan Xiao, L. Plough

引用次数: 4

Estimation of external infection pressure and salmon-louse population growth rate in Faroese salmon farms 法罗群岛三文鱼养殖场外部感染压力和三文鱼虱子种群增长率的估计

IF 2.2 2区农林科学

Aquaculture Environment Interactions Pub Date : 2021-01-28 DOI: 10.3354/aei00386

TJ Kragesteen, Knud Simonsen, A. Visser, KH Andersen

{"title":"Estimation of external infection pressure and salmon-louse population growth rate in Faroese salmon farms","authors":"TJ Kragesteen, Knud Simonsen, A. Visser, KH Andersen","doi":"10.3354/aei00386","DOIUrl":"https://doi.org/10.3354/aei00386","url":null,"abstract":"Managing salmon louse Lepeophtheirus salmonis outbreaks is a crucial part of salmon aquaculture in sea cages. Treatment management strategies can be optimized with the aid of salmon-louse population dynamic models. These models, however, need to be calibrated and validated with biologically meaningful parameters. Here, based on a time-series of lice data, we estimated 2 essential model parameters: the external infection pressure and the salmon-louse population growth rate for each active salmon farm site in the period 2011 to 2018 in the Faroe Islands. External infection pressure was found to vary between farm sites and ranged on average from 0.002 to 0.1 lice salmon-1 d-1. Further, external infection was significantly correlated with the total number of gravid lice in the Faroese farm network. Salmon-louse population growth rates were found to vary between farm sites and ranged on average from 1.7 to 5.4% d-1. These model parameter estimates are crucial in developing a salmon-louse population dynamic model for the Faroe Islands, and the method to estimate these parameters may be applicable in other aquaculture regions.","PeriodicalId":8376,"journal":{"name":"Aquaculture Environment Interactions","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41798650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Ecological co-benefits from sea cucumber farming: Holothuria scabra increases growth rate of seagrass 海参养殖的生态协同效益:斑海参能提高海草的生长速度

IF 2.2 2区农林科学

Aquaculture Environment Interactions Pub Date : 2021-01-01 DOI: 10.3354/AEI00409

J. Arnull, A. Wilson, K. Brayne, K. Dexter, AG Donah, C. Gough, T. Klückow, B. Ngwenya, A. Tudhope

{"title":"Ecological co-benefits from sea cucumber farming: Holothuria scabra increases growth rate of seagrass","authors":"J. Arnull, A. Wilson, K. Brayne, K. Dexter, AG Donah, C. Gough, T. Klückow, B. Ngwenya, A. Tudhope","doi":"10.3354/AEI00409","DOIUrl":"https://doi.org/10.3354/AEI00409","url":null,"abstract":"Sea cucumber aquaculture is increasing in extent and importance throughout the Indo-Pacific region, supplying a luxury seafood market in Asia. In this context, the grow-out of hatchery-bred juveniles in community-farmed pens is proving to be a viable model, providing increased income security and alternative livelihood options to resource-limited communities. Here, we report a study of the impacts of such sea cucumber farming on the growth of seagrass (a favourable habitat for the animals) at a village-scale aquaculture site in southwest Madagascar. Using experiments, we found that the presence of the hatchery-bred sea cucumber Holothuria scabra (sandfish), at stocking densities of 300 g m-2 (similar to the density used in the farmed pens, but relatively high for natural populations), resulted in a large (~30%), statistically significant increase in the leaf extension rate of the locally dominant seagrass species Thalassia hemprichii. However, the other dominant seagrass species, Cymodocea serrulata, did not significantly change its leaf extension rate in the presence of H. scabra. Since seagrass is a globally important coastal habitat, supporting high biodiversity, carbon sequestration, shoreline stability and nursery grounds for commercial and small-scale fisheries, the positive effect of H. scabra farming on the growth rate of at least one dominant seagrass species implies potential important ecological co-benefits. These co-benefits of H. scabra farming are likely to be relevant across the tropical Indo-Pacific coastlines, where this species is cultured.","PeriodicalId":8376,"journal":{"name":"Aquaculture Environment Interactions","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69593654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4