Journal of Plankton Research最新文献_第8页

Should we reconsider how to assess eutrophication? 我们是否应该重新考虑如何评估富营养化?

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-05-01 DOI: 10.1093/plankt/fbad022

L Polimene, O Parn, E Garcia-Gorriz, D Macias, A Stips, O Duteil, N Ferreira-Cordeiro, S Miladinova, C Piroddi, N Serpetti

{"title":"Should we reconsider how to assess eutrophication?","authors":"L Polimene, O Parn, E Garcia-Gorriz, D Macias, A Stips, O Duteil, N Ferreira-Cordeiro, S Miladinova, C Piroddi, N Serpetti","doi":"10.1093/plankt/fbad022","DOIUrl":"https://doi.org/10.1093/plankt/fbad022","url":null,"abstract":"Eutrophication in marine waters is traditionally assessed by checking if nutrients, algal biomass and oxygen are below/above a given threshold. However, increased biomass, nutrient concentrations and oxygen demand do not lead to undesirable environmental effects if the flow of carbon/energy from primary producers toward high trophic levels is consistently preserved. Consequently, traditional indicators might provide a misleading assessment of the eutrophication risk. To avoid this, we propose to evaluate eutrophication by using a new index based on plankton trophic fluxes instead of biogeochemical concentrations. A preliminary, model-based, assessment suggests that this approach might give a substantially different picture of the eutrophication status of our seas, with potential consequences on marine ecosystem management. Given the difficulties to measure trophic fluxes in the field, the use of numerical simulations is recommended although the uncertainty associated with biogeochemical models inevitably affects the reliability of the index. However, given the effort currently in place to develop refined numerical tools describing the marine environment (Ocean Digital Twins), a reliable, model-based, eutrophication index could be operational in the near future.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"45 3","pages":"413-420"},"PeriodicalIF":2.1,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10243849/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9598748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zooplankton community size structure across lakes within a semi-arid landscape: the effect of temperature and salinity 半干旱地区湖泊浮游动物群落规模结构:温度和盐度的影响

3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-05-01 DOI: 10.1093/plankt/fbad016

Matías Mariani, Alicia Vignatti, Santiago Echaniz, Gerardo Cueto, Horacio Zagarese, Nadia Diovisalvi

{"title":"Zooplankton community size structure across lakes within a semi-arid landscape: the effect of temperature and salinity","authors":"Matías Mariani, Alicia Vignatti, Santiago Echaniz, Gerardo Cueto, Horacio Zagarese, Nadia Diovisalvi","doi":"10.1093/plankt/fbad016","DOIUrl":"https://doi.org/10.1093/plankt/fbad016","url":null,"abstract":"Abstract Body size is a master trait controlling biological communities and ecosystem functioning. Mean population size not only depends on the size of individuals, but also on the size distribution of individuals within the population. Mean community size is additionally influenced by the composition of species (larger- or smaller-sized species). Shallow lakes within semi-arid landscapes are prone to experience large changes in temperature and salinity, which affect the zooplankton size structure. Higher temperatures are expected to result in smaller average body size, while the effect of salinity appears to depend on the range under study. Here we analyze zooplankton body size patterns across shallow lakes from the semi-arid central region of Argentina. All community size descriptors point to decreasing size and a narrow size range at higher temperatures. On the other hand, the maximum average community body size occurred at intermediate (~30 gL−1) salinity levels. The combined effect of both variables resulted in a bell-shaped pattern, with maximum community body size toward lower temperatures and intermediate salinities. Based on future temperature scenarios, one may anticipate an overall decrease in community body size. But such prediction is strongly conditioned by regional and local trends in salinity.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136338633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chytrids alleviate the harmful effect of heat and cyanobacteria diet on Daphnia via PUFA-upgrading. 壶菌通过pufa -升级来缓解热和蓝藻日粮对水蚤的有害影响。

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-05-01 DOI: 10.1093/plankt/fbad012

András Abonyi, Matthias Pilecky, Serena Rasconi, Robert Ptacnik, Martin J Kainz

{"title":"Chytrids alleviate the harmful effect of heat and cyanobacteria diet on Daphnia via PUFA-upgrading.","authors":"András Abonyi, Matthias Pilecky, Serena Rasconi, Robert Ptacnik, Martin J Kainz","doi":"10.1093/plankt/fbad012","DOIUrl":"https://doi.org/10.1093/plankt/fbad012","url":null,"abstract":"Chytrid fungal parasites increase herbivory and dietary access to essential molecules, such as polyunsaturated fatty acids (PUFA), at the phytoplankton-zooplankton interface. Warming enhances cyanobacteria blooms and decreases algae-derived PUFA for zooplankton. Whether chytrids could support zooplankton with PUFA under global warming scenarios remains unknown. We tested the combined effect of water temperature (ambient: 18°C, heat: +6°C) and the presence of chytrids with Daphnia magna as the consumer, and Planktothrix rubescens as the main diet. We hypothesized that chytrids would support Daphnia fitness with PUFA, irrespective of water temperature. Heating was detrimental to the fitness of Daphnia when feeding solely on the Planktothrix diet. Chytrid-infected Planktothrix diet alleviated the negative impact of heat and could support Daphnia survival, somatic growth and reproduction. Carbon stable isotopes of fatty acids highlighted a ~3x more efficient n-3 than n-6 PUFA conversion by Daphnia feeding on the chytrid-infected diet, irrespective of temperature. The chytrid diet significantly increased eicosapentaenoic acid (EPA; 20:5n-3) and arachidonic acid (ARA; 20:4n-6) retention in Daphnia. The EPA retention remained unaffected, while ARA retention increased in response to heat. We conclude that chytrids support pelagic ecosystem functioning under cyanobacteria blooms and global warming via chytrids-conveyed PUFA toward higher trophic levels.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"45 3","pages":"454-466"},"PeriodicalIF":2.1,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10243842/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9971647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Examining the performance of three ballast water compliance monitoring devices for quantifying live organisms in both regulated size classes (≥50 μm and ≥10-<50 μm). 研究了三个压载水合规监测装置的性能，用于量化两种规格规格(≥50 μm和≥10-<50 μm)的活生物体。

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-05-01 DOI: 10.1093/plankt/fbad014

Oscar Casas-Monroy, Torben Brydges, Jocelyn Kydd, Dawson Ogilvie, Robin M Rozon, Sarah A Bailey

{"title":"Examining the performance of three ballast water compliance monitoring devices for quantifying live organisms in both regulated size classes (≥50 μm and ≥10-<50 μm).","authors":"Oscar Casas-Monroy, Torben Brydges, Jocelyn Kydd, Dawson Ogilvie, Robin M Rozon, Sarah A Bailey","doi":"10.1093/plankt/fbad014","DOIUrl":"https://doi.org/10.1093/plankt/fbad014","url":null,"abstract":"A number of ballast water compliance monitoring devices (CMDs) have been made commercially available to verify the efficacy of ballast water management systems by quantifying the living organisms for both plankton size classes (≥50 μm and ≥10-<50 μm). This study aimed to examine whether new CMDs can provide a reliable indication of compliance regarding Regulation D-2 and to evaluate their performance for indicative analysis of organisms by assessing their accuracy (comparison to microscopy) and precision (comparison within measurement). Challenge fresh water samples were collected in four locations of Lake Ontario, Canada, whereas marine challenge water samples were collected around the Bay of Fundy, New Brunswick, Canada. Ballast water samples were collected from ships visiting several ports across Canada. Overall, accuracy was higher (>80%) in estimating organisms from prepared-challenge water (Ballast Eye and BallastWISE) than from ballast water samples (>70%) (B-QUA only). The sensitivity ranged from 50 to 100% for the ≥50 μm organism size class, whereas for the ≥10-<50 μm organism size class, it was higher for freshwater samples (>75%) than for marine samples (>50%). The performance of CMDs should be assessed under real-world conditions for a better understanding and to improve their use.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"45 3","pages":"540-553"},"PeriodicalIF":2.1,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10243861/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9590930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Body condition of larval roundherring, Gilchristella aestuaria (family Clupeidae), in relation to harmful algal blooms in a warm-temperate estuary. 暖温带河口有害藻华对圆鲱鱼幼鱼体状况的影响。

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-05-01 DOI: 10.1093/plankt/fbad013

Taryn Smit, Catriona Clemmesen, Daniel A Lemley, Janine B Adams, Eugin Bornman, Nadine A Strydom

{"title":"Body condition of larval roundherring, Gilchristella aestuaria (family Clupeidae), in relation to harmful algal blooms in a warm-temperate estuary.","authors":"Taryn Smit, Catriona Clemmesen, Daniel A Lemley, Janine B Adams, Eugin Bornman, Nadine A Strydom","doi":"10.1093/plankt/fbad013","DOIUrl":"https://doi.org/10.1093/plankt/fbad013","url":null,"abstract":"Eutrophication-driven harmful algal blooms (HABs) can have secondary effects on larval fishes that rely on estuaries as nurseries. However, few studies worldwide have quantified these effects despite the global rise in eutrophication. This study presents a novel approach using biochemical body condition analyses to evaluate the impact of HABs on the growth and body condition of the larvae of an estuarine resident fish. Recurrent phytoplankton blooms of Heterosigma akashiwo occur in the warm-temperate Sundays Estuary on the southeast coast of South Africa. The response in body condition and assemblage structure on larval estuarine roundherring (Gilchristella aestuaria) was measured in conjunction with bloom conditions, water quality and zooplanktonic prey and predators. Larvae and early juveniles were sampled during varying intensity levels, duration and frequency of hypereutrophic blooms. This study demonstrated that extensive HABs could significantly impact larval roundherring, G. aestuaria, by decreasing larval nutritional condition and limiting their growth, resulting in poor grow-out into the juvenile phase. Poor condition and growth may likely affect recruitment success to adult populations, and since G. aestuaria is an important forage fish and zooplanktivore, poor recruitment will hold consequences for estuarine food webs.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":"45 3","pages":"523-539"},"PeriodicalIF":2.1,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10243853/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9598751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Variability of tintinnid ciliate communities with water masses in the western Pacific Ocean 西太平洋Tintinid纤毛虫群落随水团的变化

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-04-15 DOI: 10.1093/plankt/fbad011

Haibo Li, Chaofeng Wang, Li Zhao, Yi Dong, Yuan Zhao, Wuchang Zhang

{"title":"Variability of tintinnid ciliate communities with water masses in the western Pacific Ocean","authors":"Haibo Li, Chaofeng Wang, Li Zhao, Yi Dong, Yuan Zhao, Wuchang Zhang","doi":"10.1093/plankt/fbad011","DOIUrl":"https://doi.org/10.1093/plankt/fbad011","url":null,"abstract":"\u0000 Tintinnids play a pivotal role in the marine plankton ecosystem and are model organisms in plankton studies. However, the biogeographic distribution type and community variation of tintinnids from coastal to open waters in the western Pacific have never been studied before. In the present study, 42 surface tintinnid samples were collected from coastal water to the western Pacific warm pool. A total of 84 tintinnid species were identified. The Kuroshio intrusion has obvious influence on tintinnid distribution and community structure. Fifty-two tintinnid species with relatively high occurrence frequency were classified into neritic, transitional, Kuroshio, warm-pool and cosmopolitan species. We verified the existence of tintinnid transitional species and community in Mixed Water between Neritic and Kuroshio Waters (KW). Tintinnid species richness, abundance, Shannon-Wiener index and Pielou index were higher in the KW than in the Warm-pool Water. The community complexity and stability was highest in the KW. Our findings provide a profound understanding of planktonic biogeography and community variation from nearshore to open waters in tropical and subtropical oceans.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48409296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Ontogenetic social behavior and seasonal abundance of the subtropical krill Nyctiphanes simplex in northwestern Mexican waters 墨西哥西北海域亚热带磷虾个体发育、社会行为及季节丰度

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-04-04 DOI: 10.1093/plankt/fbad008

Gabriel A Mondragón-Neri, J. Gómez‐Gutiérrez, Franklin García-Fernández, D. Gendron, Geraldine Busquets-Vass, C. Robinson

{"title":"Ontogenetic social behavior and seasonal abundance of the subtropical krill Nyctiphanes simplex in northwestern Mexican waters","authors":"Gabriel A Mondragón-Neri, J. Gómez‐Gutiérrez, Franklin García-Fernández, D. Gendron, Geraldine Busquets-Vass, C. Robinson","doi":"10.1093/plankt/fbad008","DOIUrl":"https://doi.org/10.1093/plankt/fbad008","url":null,"abstract":"\u0000 Nyctiphanes simplex (Euphausiidae) is the key prey for numerous pelagic predators because it is the most abundant of the 12 krill species present in the Gulf of California, forming dense and complex ontogenetic social interactions throughout its life cycle. We describe the diverse social behaviors of N. simplex and estimate its seasonal abundance in the Gulf of California accounting on average 74% of the krill assemblage. N. simplex exhibited complex and dynamic social repertoires of intraspecific behavioral interactions as early as Calyptopis 1 to adult phase, showing all possible ranges of social behavior known for pelagic invertebrates (aggregations, swarms, schools, shoals). We conclude that N. simplex displays different degrees of social behavior that concentrate abundance throughout their life cycle in epibenthic, pelagic and near surface habitats being highly adaptive behavior for feeding and reproduction. However, social interactions also pose a negative effect, facilitating parasite and disease transmission among conspecifics and facilitate predation for diverse visual predators adapted to find and prey on N. simplex aggregations and swarms. We report the most complete integrated evidence of social behavior and dataset of abundance data of any krill species in tropical and subtropical regions that have remained overlooked using traditional zooplankton net sampling methods.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45284032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Short-term variability in plankton abundance on the inner shelf off Ubatuba, Brazil 巴西乌巴图巴内大陆架浮游生物丰度的短期变化

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-03-29 DOI: 10.1093/plankt/fbad009

S. B. Penninck, R. Lopes

{"title":"Short-term variability in plankton abundance on the inner shelf off Ubatuba, Brazil","authors":"S. B. Penninck, R. Lopes","doi":"10.1093/plankt/fbad009","DOIUrl":"https://doi.org/10.1093/plankt/fbad009","url":null,"abstract":"\u0000 The interaction between biological and short-term physical processes affects plankton distribution and composition variability, with consequences for the entire ecosystem. Aspects of the plankton distribution at smaller scales have been understudied, mainly in coastal regions where highly variable conditions promote variations in the biophysical environment. This work aimed to investigate the short-term variations in the distribution of plankton along the inner shelf off Ubatuba, Brazil. We quantified the abundance and diversity of the main planktonic taxa (>100 μm) and their spatiotemporal distribution in winter 2018 and summer 2019 using high-resolution sensors and a shadowgraphic imaging system at cross-shore and fixed stations (12 and 24 h). Summer–winter environmental contrast was evident in the water column stability and plankton abundance. In the summer, higher values of plankton abundance and diversity were obtained. Our results suggested that spatiotemporal variations related to wind-induced mixing and water mass intrusions lead to variabilities in plankton populations on a time scale of a few hours, vertically between depth layers and at spatial scales ˂2 km. This study contributes to the knowledge of the mechanisms of biophysical interactions and their spatiotemporal variation, which is crucial for assessing the effects of climate variability on plankton-mediated ecosystem services.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43673445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pioneers of plankton research: Salvatore Lo Bianco (1860–1910)

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-03-13 DOI: 10.1093/plankt/fbad010

J. Dolan

引用次数: 1

Elemental composition and stoichiometry of krill and salps 磷虾和海带的元素组成和化学计量学

IF 2.1 3区环境科学与生态学

Journal of Plankton Research Pub Date : 2023-03-10 DOI: 10.1093/plankt/fbad005

C. Plum, Fenja-Marie Möller, Mike Smykala, S. Moorthi

{"title":"Elemental composition and stoichiometry of krill and salps","authors":"C. Plum, Fenja-Marie Möller, Mike Smykala, S. Moorthi","doi":"10.1093/plankt/fbad005","DOIUrl":"https://doi.org/10.1093/plankt/fbad005","url":null,"abstract":"\u0000 Krill and salps play a pivotal role in marine food webs and ocean biogeochemistry, yet little is known about their stoichiometry, which is crucial for our understanding of the consequences of key grazer population shifts for ecosystem functioning. To assess differences in stoichiometric requirements, we compared the elemental composition of carbon (C), nitrogen (N) and phosphorus (P) in body tissue and gut content of Euphausia superba and Salpa thompsoni collected along the Northern Antarctic Peninsula and conducted a systematic literature review on the stoichiometry of 33 euphausiid and 19 salp species. Our data revealed significantly lower body C:P and N:P ratios but higher gut content N:P in S. thompsoni compared with E. superba, suggesting higher P uptake. In contrast, literature data showed higher C:N, C:P and N:P ratios in salps, potentially indicating lower nutrient demand compared with krill. However, literature data exhibited high intra- and interspecific variability potentially driven by organism size, seasonal or latitudinal variations, emphasizing that nutritional requirements are not only related to the target species, but also to its habitat. Our study provides valuable stoichiometric information for future experimental and modeling studies, fostering our ability to predict the future role of krill and salps for ocean biogeochemistry.","PeriodicalId":16800,"journal":{"name":"Journal of Plankton Research","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47754286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0