Aims A study was conducted to compare the intestinal microbial compositions of two fish species with similar feeding strategy; paddlefish (Polyodon spathala) and bighead carp (Aristichthys nobilis) reared in same pond. Methods Results Age-0 mean average body lengths 43·39 ± 2·78 19·33 3·68 cm, respectively, were natural prey items pond (20 m2). After 30 days rearing, microbiota assessed by pyrosequencing 16S rRNA genes. Interestingly, deviations observed communities according alpha-...

ABSTRACT Aim The Ocean is the major carrier of energy storage earth and greatly affected by climate change human activities. spotted seal ( Phoca largha ) a national first‐class protected species in China only pinniped that breeds waters. This study investigated impacts on distribution primary prey fish from 1970 to 2060, based results conclusions, conservation strategies for seals are proposed. Location Yellow Bohai Seas, China. Methods Three system models dynamic bioclimate envelope model...

The study aimed to highlight the profitability and production function analysis of Penaeus monodon Litopenaeus vannamei in intensified shrimp farms Gujarat (India). Two hundred twenty (220) farm households were used identify (principal component cluster analyses) 8 clusters management practices that reflected various scales intensity ranging from 0–2999 kg/ha/crop 9000kg/ha/crop above for both species. Cobb-Douglas function, which relates output several independent input variables, was...

Mariculture development has contributed to improving global food and nutrition security. This commentary reviews the importance of blue growth potential for aquaculture fill nutritional gap left by wild fisheries. On this basis, Chinese mariculture was analyzed, focusing on five representative large-scale practices over past 60 years. The industry moved from an extensive low-efficiency stage intensive high-efficiency stage; however, been characterized environmental economic over-farming....

The delimitation of an ecotone is important reference for ecosystem conservation; however, the assessment a marine from ecological point view represents knowledge gap. Yellow River Estuary (YRE) serves as both spawning and feeding grounds numerous economically organisms. Delineating boundary YRE assessing change have great importance in maintaining its health. This study attempts to apply Moving Split Window (MSW) determine YRE. Level 2 remote sensing satellite data spanning 2012 2020...

AbstractMolluscan mariculture has become increasingly common in coastal areas of China with production accounting for ∼69% Chinese total production. In other international locations, however, a possible underutilization molluscan may result from hesitancy based on initial environmental impacts. This study investigated the dynamic relationship between industry (MMI) development and quality (solid waste production, wastewater emissions, sulfur dioxide emissions) at meso level. Their trend...

The effects of stocking density (15, 30, 45, and 60 fish m−2) on the production economics, growth, food utilization, body composition Amur sturgeon reared in cages were investigated. weight at start trial was 48.7–51.6 g. After 75 days rearing, mean weights 110.3 ± 11.2, 90.3 10.2, 79.9 8.5, 78.7 7.2 g aforementioned densities, respectively. results show that growth performances various treatments differed significantly (P < 0.05) terms final condition factor. feed conversion rate 15 m−2...

Experiments were carried out with juvenile Amur sturgeon (Acipenser schrenckii Brandt) including two size classes [small sized (SS) and large (LS)] to study the effect of stocking density on growth when reared in indoor tanks. In first trial (SS), juveniles (8.70 ± 0.90 cm total length) at five relatively high initial densities (120, 240, 360, 480, 600 individuals m−3), whereas second (LS), larger-sized (17.31 2.05 lower (50, 100, 150, 200, 250 m−3). Thus, differences refer numbers rather...

Abstract Aim Ocean warming has been observed in a number of marine ecosystems and is believed to influence species many ways, such as through changes distribution range abundance. In this study, we investigated the potential impacts climate change on maximum catch 34 warm water fishes from 2000 2060. Location Yellow Sea, China. Methods We used dynamic bioclimate envelope model under RCP2.6 RCP8.5 scenarios with Earth system models, including GFDL, IPSL, MPI their ensemble average, predict...

As the largest aquaculture producer in world, China is facing challenge of maintaining sustainability while continuing to develop industry meet socio-economic needs. Models trophic structure and energy flow can be used analyse ecological carrying capacity order determine whether a large rapidly increasing potentially puts sustainable development at risk. The Yellow River Estuary ecoregion Shandong Province, China, an ecologically important region, with extensive bivalve that overall growth...

AEI Aquaculture Environment Interactions Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 10:13-20 (2018) - DOI: https://doi.org/10.3354/aei00250 Comparing trace element concentrations in muscle tissue of marbled eel Anguilla marmorata reared three different aquaculture systems Li Li1,*, Wenjing Ren1, Chengyue Liu1, Shuanglin Dong1, Yunhao Zhu2 1Key Laboratory Mariculture, Ministry Education,...

Abstract The fungus, Alternaria alternata (Fr.) Keissler Strain 501, has been evaluated as a bioherbicide for control of Eupatorium adenophorum Spreng., but the biology pathogen–host interaction and optimal environmental conditions disease development effective weed are unknown. Disease A. 501 mycelia on E. was assessed under several factors including pathogen inoculum concentration, plant age, dew period duration, post-dew temperature, storage temperature duration. minimum concentration...

The food preferences of paddlefish (Polyodon spathula) in polyculture with bighead carp (Aristichthys nobilis) are unknown. Three consecutive analyses gastrointestinal contents and were conducted at 3d, 11d 19d after introduction into the non-fed ponds. objectives this study to test for competitive interactions between paddlefish, document their preferred prey when two species have a limited resource. results showed that basically diets. When they cultured one pond same density, fed more...