Water Biology and Security最新文献

{"title":"Construction of hybrid constructed wetlands for phosphorus chemical industry tailwater treatment in the middle Yangtze river basin: Responses of plant growth and root-associated microbial communities","authors":"Qianzheng Li ,&nbsp;Yao Guo ,&nbsp;Junqi Yu ,&nbsp;Lu Yao ,&nbsp;Shun Liu ,&nbsp;Yahua Li ,&nbsp;Disong Chen ,&nbsp;Fei Peng ,&nbsp;Dong Xu ,&nbsp;Zhenbin Wu ,&nbsp;Qiaohong Zhou","doi":"10.1016/j.watbs.2023.100144","DOIUrl":"https://doi.org/10.1016/j.watbs.2023.100144","url":null,"abstract":"<div><p>Constructed wetlands are commonly utilized to treat industrial wastewater due to their effectiveness, affordability, and environmental benefits. Many phosphorus chemical enterprises in the middle Yangtze River basin are facing high pollution load challenges and efforts are needed to improve removal efficiency of pollutants. This work was the first to use constructed wetlands for phosphorus chemical industry tailwater (PCITW) treatment. The new hybrid constructed wetlands (CWs) proposed were the aeration horizontal subsurface flow constructed wetland (AHSCW) and the integrated vertical flow constructed wetland (IVCW), which were constructed on a pilot scale. Here, the effectiveness of pollutant removal along hybrid CWs, wetland plant growth, and root-associated microbial community responses to the PCITW were investigated. The results showed that there was spatial variation in removal of carbon, nitrogen, and phosphorus in the hybrid CWs, and that the AHSCW and the IVCW played synergistic roles in the removal of pollutants. Compared with influent, the toxic effect of effluent to embryos of a rare minnow (<em>Gobiocypris rarus</em>) was alleviated. Exposure to the effluent resulted in no malformation or death for embryos. Plants and microorganisms in the wetland system of the phosphate chemical tailwater were then compared with the control system of municipal tailwater. Plants in the former system had lower root density, and higher average root diameter, root shoot ratio, specific root length, and specific surface area. Plant roots also had decreased NH₄⁺ uptake ability but increased Ca²⁺ uptake to adapt to the high load and complex pollution stress. Unlike the control system, stochastic mechanisms had a more important role than deterministic processes in shaping the microbial community assembly associated with the PCITW. Meanwhile, analysis of microbial network-level topological characteristics demonstrated substantial reduction in network interactions complexity and microbiome stability in the treatment system. Findings from this study suggest wetlands will be helpful for efficient purification of phosphorus chemical industry wastewater in the Yangtze River basin.</p></div>","PeriodicalId":101277,"journal":{"name":"Water Biology and Security","volume":"2 3","pages":"Article 100144"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49712425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Finding middle ground: Flow regimes designed for salmon and energy value","authors":"Henriette I. Jager,&nbsp;Rocio Uria-Martinez","doi":"10.1016/j.watbs.2023.100183","DOIUrl":"https://doi.org/10.1016/j.watbs.2023.100183","url":null,"abstract":"<div><p>In regulated rivers, shaping seasonal flows to recover species at risk depends on understanding when to expect conflicts with competing water users and when their interests are aligned. Multi-objective optimization can be used to reveal such conflicts and commonalities. When species are involved, multi-objective optimization is challenged by the need to simulate complex species responses to flow regimes. Previously, we addressed that challenge by developing a simplified salmon model (<em>Quantus</em>) that defines cohorts of salmon by the river section and time in which they were spawned. Salmon in these space-time cohorts are tracked from the time redds (nests) are constructed until the cohort exits the tributary <em>en route</em> to the ocean. In this study, we modeled seasonal patterns in energy value and developed a Pareto-optimal frontier of seasonal flow patterns to maximize in-river salmon survival and hydropower value. Candidate flow regimes were characterized by two pulse flows varying in magnitude, timing, and duration and constrained by a total annual flow near the historical median. Our analysis revealed times when economic and salmon objectives were aligned and times when they differed. Pulse flows that favored higher energy value were timed to meet demand during extreme temperatures. Both salmon and hydropower objectives produced optimal flow regimes with pulse flows in early summer, but only solutions favoring hydropower value included high flows in mid-winter. Solutions favoring higher age-0 salmon survival provided an extended pulse flow in late winter/early spring, which suggests that access to productive floodplain habitat allowed faster growth and earlier out-migration and reduced the need for higher temperature-moderating flows later in spring. Minimum flows were also higher among solutions favoring salmon over energy. The tools used to produce these results can help to design simplified seasonal flow regimes by revealing compromise solutions that satisfy both fish and energy producers and highlighting when potential conflicts are likely.</p></div>","PeriodicalId":101277,"journal":{"name":"Water Biology and Security","volume":"2 3","pages":"Article 100183"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49712454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sperm whales in the waters off China: A glimpse of the past and present","authors":"Mingming Liu ,&nbsp;Mingli Lin ,&nbsp;Songhai Li","doi":"10.1016/j.watbs.2022.100133","DOIUrl":"https://doi.org/10.1016/j.watbs.2022.100133","url":null,"abstract":"<div><p>Spatiotemporal information is crucial for cetacean research and conservation, particularly for wide-ranging and migratory species. Sperm whales (<em>Physeter macrocephalus</em>) are distributed worldwide in deep oceans; however, little is known about the species in the western margin of the Pacific Ocean. Here, we examined the available information related to the occurrence, distribution, and potential habitats of sperm whales in the waters off China. Historical whaling information (18th–20th century) indicates that sperm whales have been captured in the East China Sea (ECS) and South China Sea (SCS). Furthermore, sporadic strandings have been recorded since the 1910s, and more frequently from 1990 onwards. Since 1990, accidental sightings have been documented in the eastern ECS, northeastern and southern SCS, and their adjacent waters. More recently (2019–2022), field encounters have been reported in dedicated ship-based investigations in the Xisha and Nansha waters, providing robust evidence of the regular existence and potential residency of sperm whales in the northwestern and central areas of the SCS. Female nursery groups suggest that the Xisha waters might be an important nursing ground for sperm whales. Satellite tracking data from four adults showed that sperm whales in the SCS might display both fine-scale and long-distance movements. Taken together, it appears that sperm whales are currently active in the waters off China, and that deep waters (depth &gt;200 ​m) in the ECS and SCS may provide the species with critical habitats. This review provides crucial baseline information on sperm whales in the waters off China, which may help to facilitate future research efforts and conservation initiatives for the species at national and cross-regional scales. More field investigations and other monitoring approaches including acoustic monitoring, biologging, photo-identification, and genetics are required to reveal the distribution, movement, and habitat use patterns of sperm whales in these waters.</p></div>","PeriodicalId":101277,"journal":{"name":"Water Biology and Security","volume":"2 3","pages":"Article 100133"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49734119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic effect of vermiculite and submerged plants on lake sediments","authors":"Rou Wang ,&nbsp;Yunli Liu ,&nbsp;Feng Luo ,&nbsp;Guoliang Bai ,&nbsp;Yadong Tang ,&nbsp;Qingjun Fang ,&nbsp;Jiying Zhu ,&nbsp;Beining Li ,&nbsp;Zisen Liu ,&nbsp;Feng He ,&nbsp;Qiaohong Zhou ,&nbsp;Zhenbin Wu ,&nbsp;Yi Zhang","doi":"10.1016/j.watbs.2023.100181","DOIUrl":"https://doi.org/10.1016/j.watbs.2023.100181","url":null,"abstract":"<div><p>The synergistic effect of vermiculite and the submerged macrophytes <em>Vallisneria spiralis</em> and <em>Hydrilla verticillata</em> on lake sediment was studied using diffusive gradients in thin films (DGT) technology. The dynamics of phosphorus (P) fractions in sediment, the labile-P and labile-S in the water-sediment continuum, and the microbial community in the rhizosphere were studied. Vermiculite effectively promoted reproduction of microorganisms in the sediments Microbial abundance in treatments containing <em>V. spiralis</em> with sediments containing 10% added vermiculite, and <em>H. verticillata</em> containing 50% added vermiculite being 1.7 and 3.5 times higher than the controls which contained no added vermiculite. <em>Acidobacteria</em> and <em>Proteobacteria</em> populations, which are both beneficial for the sediment microenvironment, were higher in treatment groups containing vermiculite. The bioavailable-P in treatment groups containing added vermiculite was lower at the sediment-water interface, with a correlating decrease of TP by between 63% and 91% in the overlying water. This suggests that vermiculite can affect the release of labile P and facilitate the assimilation of nutrients by macrophyte roots. Additionally, vermiculite can improve the Oxidation-Reduction potential and further reduce sulfide toxicity to plants. These results provide theoretical guidance and technical support for the application of vermiculite combined with submerged plants for the remediation of eutrophic lakes.</p></div>","PeriodicalId":101277,"journal":{"name":"Water Biology and Security","volume":"2 3","pages":"Article 100181"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49712426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acknowledgement of reviewers who reviewed for Water Biology and Security in 2022","authors":"","doi":"10.1016/S2772-7351(23)00051-3","DOIUrl":"https://doi.org/10.1016/S2772-7351(23)00051-3","url":null,"abstract":"","PeriodicalId":101277,"journal":{"name":"Water Biology and Security","volume":"2 2","pages":"Article 100172"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49733797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Water transfer determines the regional spread dynamics of non-native fish species","authors":"Jiao Qin ,&nbsp;Bjorn Victor Schmidt ,&nbsp;Lei Zhang ,&nbsp;Fei Cheng ,&nbsp;Songguang Xie","doi":"10.1016/j.watbs.2023.100135","DOIUrl":"https://doi.org/10.1016/j.watbs.2023.100135","url":null,"abstract":"<div><p>Interbasin water transfer projects (IBWT's) have emerged as dispersal corridors for aquatic species. However, little is known about how water transfer affects regional spread dynamics, or shapes the genetic diversity patterns of non-native populations. Shimofuri Goby <em>Tridentiger bifasciatus</em> is a globally introduced fish species with many well-established populations in IBWT's. Here, we used nuclear microsatellites to assess the genetic diversity and population structure of the Shimofuri Goby in its native and introduced sites belonging to two IBWT's in China. Our objectives were to (1) reveal the genetic diversity patterns of the Shimofuri Goby during regional spread, and (2) identify its mode of spreading in water transfer systems. We observed (1) a high level of genetic diversity in non-native populations without evidence of bottleneck effects, (2) that non-native populations with a longer water transfer times had a higher private allele richness, and (3) that non-native populations showed a highly mixed genetic structure, low level of genetic differentiation, and no significant relationship between geographical and genetic distances. Our results indicate that the genetic patterns of diversity of non-native populations are mainly shaped by a linear cascade spread processes due to long-distance movement of larvae, and are probably related to propagule pressure caused by the construction of water transfer. To manage the non-native populations of <em>T. bifasciatus</em>, preventive actions and physical removal should be implemented in IBWT's.</p></div>","PeriodicalId":101277,"journal":{"name":"Water Biology and Security","volume":"2 2","pages":"Article 100135"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49711902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Knockout of lipoprotein lipase with CRISPR/Cas9 causes severe developmental defects and affects lipid deposition in Japanese medaka (Oryzias latipes)","authors":"Hexiong Feng ,&nbsp;Xu-Fang Liang","doi":"10.1016/j.watbs.2023.100138","DOIUrl":"https://doi.org/10.1016/j.watbs.2023.100138","url":null,"abstract":"","PeriodicalId":101277,"journal":{"name":"Water Biology and Security","volume":"2 2","pages":"Article 100138"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49733796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oral PLGA-based DNA vaccines using interferons as adjuvants remarkably promote the immune protection of grass carp (Ctenopharyngodon idella) against GCRV infection","authors":"Chaolin Jiang ,&nbsp;Xingchen Huo ,&nbsp;Lingjie Tang ,&nbsp;Meidi Hu ,&nbsp;Chunrong Yang ,&nbsp;Daji Luo ,&nbsp;Jianguo Su","doi":"10.1016/j.watbs.2023.100143","DOIUrl":"https://doi.org/10.1016/j.watbs.2023.100143","url":null,"abstract":"<div><p>Grass carp hemorrhagic disease caused by grass carp reovirus (GCRV) results in significant economic losses to the global grass carp aquaculture industry. Oral vaccination is an ideal choice for disease precaution in aquaculture. However, oral vaccine can be degraded in the gut. Therefore, the selection of loading materials is essential. In this study, the S6 and S7 fragments (encoding the outer capsid protein VP4 and fibronectin VP56 of GCRV) and grass carp interferons (IFNs), including IFN1, IFN3, and IFNγ2 were used to create DNA vaccines and adjuvants based on pcDNA3.1, respectively. The oral DNA vaccine was encapsulated in poly(lactic-co-glycolic acid) (PLGA) and polyvinyl alcohol (PVA) with IFNs. The PLGA-PVA (PP) nano-microspheres were prepared by double emulsion-solvent evaporation technique. Using transmission electron microscopy and dynamic light scattering assays, it was determined the vaccines had a spherical structure with uniform particle size (643.5 ​± ​35.3 ​nm). The nano-microspheres possessed excellent encapsulation efficiency (81.6 ​± ​2.6%) and loading rate (0.54 ​± ​0.02%), and simultaneously exhibited negligible hemolytic activity and cell toxicity. The protection rate and tissue viral loads post-GCRV challenge in grass carp were assessed. The oral PP nano-microsphere with pVP4 ​+ ​pIFN1 (PP41) vaccine increased protection rate by 44% compared with the control group and was correlated with relatively low viral loads in the spleen, head kidney, and hindgut. Further, three crucial serum biochemical indexes, total superoxide dismutase (TSOD), complement C3 (C3), and lysozyme (LZM), were also dramatically increased. Furthermore, mRNA expressions of representative immune-related genes (IgM, IFN1, IFNγ2, MHC-Ⅰ, and CD8α) in the head kidney and spleen were significantly enhanced. In addition, mRNA expression of IgT was significantly boosted in the hindgut. The results indicate that DNA vaccine capsulated with PP is effective against GCRV infection. The present study provides insights into a prospective strategy for oral vaccine development in aquaculture.</p></div>","PeriodicalId":101277,"journal":{"name":"Water Biology and Security","volume":"2 2","pages":"Article 100143"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49712456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing physical habitat structure and biological condition in eastern Amazonia stream sites","authors":"Jady Vivia Almeida da Silva Santos ,&nbsp;Myllena Lima ,&nbsp;Josinete Sampaio Monteles ,&nbsp;Daiany Larissa Ribeiro Carrera ,&nbsp;Ana Paula Justino de Faria ,&nbsp;Leandro Schlemmer Brasil ,&nbsp;Leandro Juen","doi":"10.1016/j.watbs.2022.100132","DOIUrl":"https://doi.org/10.1016/j.watbs.2022.100132","url":null,"abstract":"<div><p>The advance of agricultural frontiers and industrialization in Amazonia has increased natural resource deterioration, resulting in degraded physical habitat structure and reduced local aquatic biodiversity. We evaluated the relative sensitivities of the Biological Monitoring Working Party (BMWP) and Average Score Per Taxon (ASPT) biotic indexes based on EPT (Ephemeroptera, Plecoptera, Trichoptera) versus EPT taxa richness, EPT abundance, and Shannon-Wiener EPT diversity for evaluating anthropogenic impacts on Amazonian streams. We expected that EPT-BMWP and EPT-ASPT would be more sensitive in detecting environmental changes on stream biota than the other measures. We sampled 32 stream sites in eastern Amazonia distributed along an environmental gradient resulting from different land use intensities. All the biological metrics except EPT-ASPT were significantly responsive to anthropogenic pressures; however, EPT taxa richness was slightly more responsive.</p></div>","PeriodicalId":101277,"journal":{"name":"Water Biology and Security","volume":"2 2","pages":"Article 100132"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49712234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel insights into the reproductive strategies of wild Chinese sturgeon (Acipenser sinensis) populations based on the kinship analysis","authors":"Dan Yu ,&nbsp;Xin Gao ,&nbsp;Zhongyuan Shen ,&nbsp;Masami Fujiwara ,&nbsp;Ping Yang ,&nbsp;Tao Chang ,&nbsp;Futie Zhang ,&nbsp;Xinghua Wu ,&nbsp;Zhonghua Duan ,&nbsp;Huanzhang Liu","doi":"10.1016/j.watbs.2023.100134","DOIUrl":"https://doi.org/10.1016/j.watbs.2023.100134","url":null,"abstract":"<div><p>Understanding the reproductive strategy of an organism is important in conservation ecology as it directly affects the population performance under changing environmental conditions. Chinese sturgeon (<em>Acipenser sinensis</em>) are the largest anadromous fish in the Yangtze River, China. Currently, the species has only one spawning ground and has failed to spawn in recent years, leading it to the brink of extinction. To develop effective conservation measures, a further understanding of its reproductive strategy is needed. In our study, we conducted kinship analyses by using mitochondrial and microsatellite DNA data from 216 wild juveniles collected over nine years (2006−2013, 2015) to understand the mating system, breeding interval, effective number of breeding adults, and reproductive success. The results from these analyses suggested polygynandry, with some parents contributing up to eight half-sibling juvenile genotypes. Although the spawning ground was restricted to a limited area, genetic diversity was maintained at a relatively high level (observed heterozygosity from 0.698 to 0.787 and expected heterozygosity from 0.763 to 0.787) and inbreeding coefficients in each year-class ranged from −1% to 9% (low to modest detrimental effects on offspring). A parental inference analysis revealed that Chinese sturgeon have a breeding interval of 2–6 years, indicating that it has the potential to feed, accumulate nutrition in the ocean, and then migrate back to the Yangtze River for iteroparous reproduction. The annual effective number of breeders in the Yangtze River ranged from 14 to 161 during the study period, and it decreased by 62.1% from the 2011−2014 year-classes. This sharp population decline likely contributes to the reproduction failure. However, the ratios of effective to census population size (<em>N</em>_e/<em>N</em>_c) were all larger than 0.20 after the 2010 year-class, indicating relatively even reproductive success. Based on these results, a suggested approach to protect this species is to restock parent fish to increase the reproductive stock size and optimize the discharge of the Three Gorges Dam to reduce the unsuitable hydrological conditions and rehabilitate spawning ground habitats.</p></div>","PeriodicalId":101277,"journal":{"name":"Water Biology and Security","volume":"2 2","pages":"Article 100134"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49711900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}