Journal of fish biology最新文献

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Broad thermal tolerance and high mitochondrial genetic connectivity in the pinfish (Lagodon rhomboides). 鱼(Lagodon rhomboides)广泛的耐热性和高线粒体遗传连通性。
IF 1.7 3区 农林科学
Journal of fish biology Pub Date : 2024-11-28 DOI: 10.1111/jfb.16015
Katherine M Eaton, Jacob E Samenuk, Laurel Thaxton, Victoria Chaves, Moisés A Bernal
{"title":"Broad thermal tolerance and high mitochondrial genetic connectivity in the pinfish (Lagodon rhomboides).","authors":"Katherine M Eaton, Jacob E Samenuk, Laurel Thaxton, Victoria Chaves, Moisés A Bernal","doi":"10.1111/jfb.16015","DOIUrl":"https://doi.org/10.1111/jfb.16015","url":null,"abstract":"<p><p>Pinfish (Lagodon rhomboides) are highly abundant in coastal ecosystems of the Gulf of Mexico and western Atlantic Ocean and serve as a crucial link in marine food webs. Despite their ecological relevance, little is known about this species' susceptibility to anthropogenic climate change. Here, we characterized patterns of mitochondrial genetic divergence and examined the upper thermal tolerance of pinfish across a large portion of the species' range. We found little evidence of population genetic differentiation among distant localities with divergent temperature regimes (e.g., Mexico and North Carolina), using two mitochondrial markers (cytochrome b [CytB] and cytochrome c oxidase I [COI]). This suggests high genetic connectivity, which implies low potential for local adaptation of populations to different thermal conditions along a latitudinal gradient. To further examine population-scale differences in thermal tolerance, we assessed the critical thermal maxima (CT<sub>max</sub>) of pinfish from four localities: North Carolina, Florida Keys, Alabama, and Texas. We found that CT<sub>max</sub> was similar across sites, with all localities showing an average CT<sub>max</sub> within a 1°C temperature range (34.5-35.5°C). This suggests that southern populations of pinfish may be more susceptible to the detrimental effects of ocean warming, as individuals in lower latitudes regularly experience temperatures within a few degrees of their CT<sub>max</sub>. Finally, we examined the influence of varying salinity on the upper thermal limit of the pinfish and found that pinfish show no variation in CT<sub>max</sub> under salinity conditions ranging from hypo- to hypersaline (15-35 ppt). These results show that pinfish can tolerate a wide range of environmental parameters but may rely on phenotypic plasticity, rather than local adaptation, to distinct conditions to cope with different environmental regimes.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142750991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
First records of the roughskin dogfish Centroscymnus owstonii in the greater Antilles, central Caribbean Sea, Western Atlantic Ocean. 在大安的列斯群岛、加勒比海中部、西大西洋发现粗皮角鲨的最早记录。
IF 1.7 3区 农林科学
Journal of fish biology Pub Date : 2024-11-28 DOI: 10.1111/jfb.16008
Olivia F L Dixon, Shannon E Aldridge, Johanna K Kohler, Anne Veeder, Paul Chin, Teresa F Fernandes, Timothy Austin, Rupert F Ormond, Mauvis A Gore, Diego F B Vaz, Austin J Gallagher
{"title":"First records of the roughskin dogfish Centroscymnus owstonii in the greater Antilles, central Caribbean Sea, Western Atlantic Ocean.","authors":"Olivia F L Dixon, Shannon E Aldridge, Johanna K Kohler, Anne Veeder, Paul Chin, Teresa F Fernandes, Timothy Austin, Rupert F Ormond, Mauvis A Gore, Diego F B Vaz, Austin J Gallagher","doi":"10.1111/jfb.16008","DOIUrl":"https://doi.org/10.1111/jfb.16008","url":null,"abstract":"<p><p>The roughskin dogfish Centroscymnus owstonii, a deep-sea shark, has a patchy global distribution, with most knowledge stemming from incidentally captured specimens. Using a deep-sea remote lander video system, we observed multiple C. owstonii individuals alive on the footage at 1054 m off Little Cayman, Cayman Islands, Western Atlantic Ocean, marking, to our knowledge, the first record of the species in the Greater Antilles, central Caribbean Sea, while also adding a new species locality record for the Cayman Islands. This study expands our knowledge of the distribution of the roughskin dogfish in the region, and highlights the utility of video lander systems for enhancing and expanding our understanding of the biology and diversity of deep-sea sharks.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142750993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Welfare and resilience in aquaculture 水产养殖中的福利和复原力。
IF 1.7 3区 农林科学
Journal of fish biology Pub Date : 2024-11-26 DOI: 10.1111/jfb.16006
Jonathan A. C. Roques, Hans J. W. van de Vis
{"title":"Welfare and resilience in aquaculture","authors":"Jonathan A. C. Roques,&nbsp;Hans J. W. van de Vis","doi":"10.1111/jfb.16006","DOIUrl":"10.1111/jfb.16006","url":null,"abstract":"&lt;p&gt;As the world population is continuing its growth, the resilience of the aquaculture industry is essential to ensure that it can sustainably meet the growing demand for seafood, while minimizing the negative impact of the environment and ensuring good welfare of the cultured organisms. In this special issue, we have compiled nine original articles that provide an overview of the different aspects between resilience and welfare, and how those two notions are closely connected and contribute to the sustainability and ethical functioning of aquaculture systems.&lt;/p&gt;&lt;p&gt;In the first article, Meijboom and Bovenkerk (&lt;span&gt;2025&lt;/span&gt;) explored the concept of resilience in fish aquaculture, emphasizing that it involves not only the biological capacity of individual fish but also the overall aquaculture system. The authors encourage a holistic view that integrates both the robustness of fish and the adaptability of aquaculture systems while addressing moral concerns. The authors further discussed the ethical dimensions of resilience, including the assumptions of “win-win” scenarios, trade-offs between individual welfare and system efficiency, the need to center animal agency, and the potential moral implications of adapting fish to challenging conditions.&lt;/p&gt;&lt;p&gt;Challenging conditions in an aquaculture context include housing, as fish are usually kept at high densities in a relatively stimulus-free environment. These conditions can have a negative impact on the welfare and mental state of the animal. Epping et al. (&lt;span&gt;2025&lt;/span&gt;) used the judgment bias paradigm (Mendl et al., &lt;span&gt;2009&lt;/span&gt;) to assess the impact of different standard laboratory housing conditions on the mental states of female guppies. The guppies showed no significant stress response to variations in standard housing conditions, indicating their adaptability. These results showed the resilience of guppies to standard housing conditions and confirmed the utility of the judgment bias paradigm as a tool for assessing fish welfare, which can be extrapolated to ensuring optimal living conditions in aquaculture settings.&lt;/p&gt;&lt;p&gt;Atlantic salmon (&lt;i&gt;Salmo salar&lt;/i&gt;) is one of the key aquaculture species, being considered a “climate friendly” protein source due to its good growth, utilization of feed resources, low carbon footprint, and greenhouse gas emission (Aas et al., &lt;span&gt;2022&lt;/span&gt;; Singh et al., &lt;span&gt;2024&lt;/span&gt;). Nevertheless, the salmon industry is facing several challenges regarding resilience and welfare, including the sea lice crisis, which caused mass mortalities and economical losses (Powell et al., &lt;span&gt;2018&lt;/span&gt;). The article from Rosendal et al. (&lt;span&gt;2025&lt;/span&gt;) presents a Norwegian case study exploring the factors explaining why policy instruments to stimulate breeding for lice resistance in salmon aquaculture are currently absent, despite documented opportunities for selection progress. This study highlights the potential of breeding for lice resistance to enha","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":"106 1","pages":"3-5"},"PeriodicalIF":1.7,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jfb.16006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142729522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fish-Finder: A robust small target detection method for aquaculture fish in low-quality underwater images. Fish-Finder:低质量水下图像中水产养殖鱼类的鲁棒小目标检测方法。
IF 1.7 3区 农林科学
Journal of fish biology Pub Date : 2024-11-25 DOI: 10.1111/jfb.15992
Liang Liu, Junfeng Wu, Haiyan Zhao, Han Kong, Tao Zheng, Boyu Qu, Hong Yu
{"title":"Fish-Finder: A robust small target detection method for aquaculture fish in low-quality underwater images.","authors":"Liang Liu, Junfeng Wu, Haiyan Zhao, Han Kong, Tao Zheng, Boyu Qu, Hong Yu","doi":"10.1111/jfb.15992","DOIUrl":"https://doi.org/10.1111/jfb.15992","url":null,"abstract":"<p><p>Underwater fish object detection serves as a pivotal research direction in marine biology, aquaculture management, and computer vision, yet it poses substantial challenges due to the complexity of underwater environments, occultations, and the small-sized and frequently moving fish in aquaculture. Addressing these challenges, we propose a novel underwater fish object detection algorithm named Fish-Finder. First, we engendered a structure titled \"C2fBF,\" utilizing the dual-path routing attention protocol of BiFormer. The primary objective of this structure is to alleviate the perturbations induced by underwater intricacies during the phase of downsampling in the backbone network, thereby discerning and conserving finer contextual features. Subsequently, we co-opted the RepGFPN method within our neck network-a distinctive approach that adeptly merges high-level semantic constructs with low-level spatial specifics, thus fortifying its multi-scale detection prowess. Then, in an endeavor to diminish the sensitivity toward positional aberrations during the detection of diminutive aquatic creatures, we incorporated a novel bounding box regression loss function, the Wasserstein loss, to the existing CIoU. This innovative function gauges the congruity between the predicted bounding box Gaussian distribution and the reference bounding box Gaussian distribution. Finally, in regard to the dataset, we independently assembled a specific dataset termed \"SmallFish.\" This unique dataset, meticulously designed for the detection of small-scale fish within intricate underwater settings, includes 5000 annotated images of small fish. Experimental results demonstrate that, compared to the state-of-the-art detection methods, our proposed method improves the accuracy by <math> <semantics><mrow><mn>2.58</mn> <mo>%</mo></mrow> <annotation>$$ mathbf{2.58}% $$</annotation></semantics> </math> and <math> <semantics><mrow><mn>2.32</mn> <mo>%</mo></mrow> <annotation>$$ mathbf{2.32}% $$</annotation></semantics> </math> , and mean average precision (mAP) increases <math> <semantics><mrow><mn>2.6</mn> <mo>%</mo></mrow> <annotation>$$ mathbf{2.6}% $$</annotation></semantics> </math> and <math> <semantics><mrow><mn>2.53</mn> <mo>%</mo></mrow> <annotation>$$ mathbf{2.53}% $$</annotation></semantics> </math> in public dataset Kaggle-Fish and our SmallFish dataset, respectively.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Transient receptor potential a1b regulates primordial germ cell numbers and sex differentiation in developing zebrafish. 瞬时受体电位 a1b 调节发育中斑马鱼的原始生殖细胞数量和性别分化。
IF 1.7 3区 农林科学
Journal of fish biology Pub Date : 2024-11-25 DOI: 10.1111/jfb.16005
Xiaoting Gong, Qianqian Yan, Liangbiao Chen
{"title":"Transient receptor potential a1b regulates primordial germ cell numbers and sex differentiation in developing zebrafish.","authors":"Xiaoting Gong, Qianqian Yan, Liangbiao Chen","doi":"10.1111/jfb.16005","DOIUrl":"https://doi.org/10.1111/jfb.16005","url":null,"abstract":"<p><p>Temperature is a leading environmental factor determining the sex ratio of some animal populations, such as fish, amphibians, and reptiles. However, the underlying mechanism by which temperature affects gender is still poorly understood. Transient receptor potential a1b (Trpa1b) belongs to the ion channel family of transient receptor potentials and exhibits dual thermosensitivity to heat and cold. In this study, we have unveiled a novel function of the trpa1b gene. Zebrafish generated through clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 with Trpa1b-null manifest a male-biased sex ratio. The quantity of primordial germ cells (PGCs) in zebrafish is closely linked to gender determination and gonadal development. Yet the role of the trpa1b gene in zebrafish reproductive development remains unexplored in the literature. Our investigation revealed a significant reduction in PGCs in Trpa1b mutant zebrafish compared to their wild-type counterparts 24-h postfertilization (hpf). Transcriptome sequencing of tissues near the reproductive crest of embryos at 1.25 days postfertilization (dpf) revealed differential changes in PGC-related marker genes and genes related to sperm cell development and differentiation. The relative expression of ddx4 and sycp3 genes was significantly downregulated, whereas amh was significantly upregulated at 20 dpf in trpa1b<sup>-/-</sup> zebrafish. The results of this study provide valuable insights and references for studying the molecular mechanism of sex determination in zebrafish. Undoubtedly, these results will further enhance our understanding of gender differentiation and gonadal development in fish and other vertebrates.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142715820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
The effects of warm thermal variability on metabolism and swimming performance in wild Atlantic salmon (Salmo salar). 温热变化对野生大西洋鲑(Salmo salar)新陈代谢和游泳性能的影响。
IF 1.7 3区 农林科学
Journal of fish biology Pub Date : 2024-11-24 DOI: 10.1111/jfb.15996
Sean Andrew, Suzanne Currie, Andrea Jane Morash
{"title":"The effects of warm thermal variability on metabolism and swimming performance in wild Atlantic salmon (Salmo salar).","authors":"Sean Andrew, Suzanne Currie, Andrea Jane Morash","doi":"10.1111/jfb.15996","DOIUrl":"https://doi.org/10.1111/jfb.15996","url":null,"abstract":"<p><p>Warmer and more variable temperatures have been implicated in the recent decline of Atlantic salmon (Salmo salar) in Eastern Canada. To date, we know little on how ecologically relevant thermal fluctuations affect swimming performance in fishes. The goal of this study is to determine the effects of warm versus cool diel thermal variability on swimming efficiency and the speed limit for sustainable aerobically fueled swimming. We acclimated wild S. salar juveniles to a cool and a warm ecologically realistic diel thermal profile (16-21 and 19-24°C), and then tested individuals over a common acute change in temperature (16-24°C). We measured metabolic rate and swimming kinematics at a range of swimming speeds, at five temperatures (16, 18, 20, 22, and 24°C) and calculated swimming efficiency. Our temperature acclimation did not appear to significantly affect energetic and kinematic swimming efficiency, but acute exposure to high temperature did increase overall metabolic rate. It appears that wild S. salar can swim efficiently and sustainably during both acute cool and warm exposures, and after acclimation to diel thermal variation of 16-21 or 19-24°C.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142710322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species. Pollimyrus (Teleostei,Mormyridae)的形态综合,并描述了四个新种。
IF 1.7 3区 农林科学
Journal of fish biology Pub Date : 2024-11-24 DOI: 10.1111/jfb.15983
Katrien Dierickx, Soleil Wamuini Lunkayilakio, Roger Bills, Emmanuel Vreven
{"title":"Morphometric synthesis of Pollimyrus (Teleostei, Mormyridae) with the description of four new species.","authors":"Katrien Dierickx, Soleil Wamuini Lunkayilakio, Roger Bills, Emmanuel Vreven","doi":"10.1111/jfb.15983","DOIUrl":"https://doi.org/10.1111/jfb.15983","url":null,"abstract":"<p><p>Mormyridae, a species-rich family endemic to Africa, remains taxonomically understudied. This has been the case for the genus Pollimyrus Taverne, 1971, which hinders further understanding of the distribution, ecology, and conservation of its species. Therefore, an in-depth morphometric comparison of all currently valid species is carried out using most of the available type specimens. Species delineations were re-evaluated, and four species new to science described: Pollimyrus ibalazambai sp. nov. (the Luki River, the Democratic Republic of the Congo), Pollimyrus krameri sp. nov. (the Lugenda River, Mozambique), Pollimyrus vanneeri sp. nov. (the Kouilou-Niari River, the Republic of the Congo), and Pollimyrus weyli sp. nov. (the Buzi River, Mozambique). In this study, Pollimyrus guttatus is confirmed to belong to Pollimyrus, whereas Pollimyrus eburneensis and Cyphomyrus plagiostoma seem more similar to species allocated to other genera. No or only little morphological differences were found between the type series of several species, which could indicate the need for synonymization of these species (Pollimyrus cuandoensis with Pollimyrus marianne and Pollimyrus nigripinnis with Pollimyrus pulverulentus). As such 20 species are currently morphologically identifiable in the genus Pollimyrus. The present study highlights the critical need for further synthetic efforts and new collecting efforts across Africa for this and other Mormyridae genera.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142710306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Assessment of genomic diversity within and between two cryptic shiners, the West Texas shiner (Notropis megalops) and the Texas shiner (Notropis amabilis). 评估两种隐蔽鲥鱼--西德克萨斯鲥鱼(Notropis megalops)和德克萨斯鲥鱼(Notropis amabilis)--内部和之间的基因组多样性。
IF 1.7 3区 农林科学
Journal of fish biology Pub Date : 2024-11-21 DOI: 10.1111/jfb.15999
Kayla R Dye, Andrew T Fields, Megan G Bean, Sarah M Robertson, Christopher M Hollenbeck, Kevin W Conway, David S Portnoy
{"title":"Assessment of genomic diversity within and between two cryptic shiners, the West Texas shiner (Notropis megalops) and the Texas shiner (Notropis amabilis).","authors":"Kayla R Dye, Andrew T Fields, Megan G Bean, Sarah M Robertson, Christopher M Hollenbeck, Kevin W Conway, David S Portnoy","doi":"10.1111/jfb.15999","DOIUrl":"https://doi.org/10.1111/jfb.15999","url":null,"abstract":"<p><p>The presence of cryptic species can hinder effective conservation planning and implementation, as has been the case for speciose groups of freshwater fishes that are difficult to differentiate due to conserved morphologies. The West Texas shiner Notropis megalops and the Texas shiner Notropis amabilis are a cryptic pair of leuciscids (minnows) that co-occur in spring-fed tributaries of the Rio Grande in Texas and Mexico. Both N. megalops and N. amabilis are listed as Species of Greatest Conservation Need by the Texas Parks and Wildlife Department. Notropis amabilis is widespread and listed as apparently secure by Texas Parks and Wildlife Department whereas N. megalops has a very limited distribution and has not been ranked by Texas Parks and Wildlife Department because of data deficiency. Morphological differences between these species have been described; however, proper identification in situ remains problematic. Furthermore, given their range of overlap there is potential for hybridization, and limited genetic data have been collected comparing the species. Therefore, reduced representation genomic and mitochondrial sequencing data were used to reassess the distinctness of the species, screen for hybridization, and characterize their relative frequencies throughout their range of overlap. Genomic analyses recovered two distinct genetic groups corresponding to the species (F'<sub>CT</sub> = 0.89) with no evidence of admixture or introgression. The species were found to co-occur at three sampling locations, two in the Devils River and one in the Pecos, but not in equal frequencies. Overall, these results provide data and tools for further research on N. megalops needed for accurate conservation policies and management practices.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142687088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Comparative study of gut content microbiota in freshwater fish with different feeding habits: A case study of an urban lake. 不同摄食习惯淡水鱼肠道微生物群的比较研究:城市湖泊案例研究
IF 1.7 3区 农林科学
Journal of fish biology Pub Date : 2024-11-20 DOI: 10.1111/jfb.16002
Zaitian Li, Junsheng Lv, Jun Chen, Fengzhu Sun, Ruozhu Sheng, Yueyun Qin, Lihua Rao, Tao Lu, Liwei Sun
{"title":"Comparative study of gut content microbiota in freshwater fish with different feeding habits: A case study of an urban lake.","authors":"Zaitian Li, Junsheng Lv, Jun Chen, Fengzhu Sun, Ruozhu Sheng, Yueyun Qin, Lihua Rao, Tao Lu, Liwei Sun","doi":"10.1111/jfb.16002","DOIUrl":"https://doi.org/10.1111/jfb.16002","url":null,"abstract":"<p><p>The gut microbiota plays a crucial role in various physiological functions of the host and can be modulated by numerous factors, including feeding habit or trophic level. In this study, the impact of host feeding habits on the gut microbiota of freshwater fish was explored. Ten fish species, classified into four feeding habit categories (herbivorous, omnivorous, planktivorous, and carnivorous) were sampled from West Lake, a renowned urban scenic lake, and their gut content microbiota was analysed using 16S ribosomal RNA gene sequencing. A total of 2531 operational taxonomic units, belonging to 34 bacterial phyla, were identified, with 33.4% shared across all feeding habits. Firmicutes and Proteobacteria were the predominant phyla. However, at the family level, Peptostreptococcaceae and Clostridiaceae_1 were the most dominant. Microbiota composition diversity was highest in herbivorous fish, followed by omnivores, carnivores, and planktivores. Statistically significant differences in microbiota diversity were found between different feeding categories, except for the omnivores, which did not differ from the carnivores or planktivores. The most abundant predicted metabolic pathways across all feeding habits were similar, with amino acid metabolism, carbohydrate metabolism, metabolism of cofactors and vitamins, and metabolism of other amino acids being dominant. However, comparing the relative abundance of gene functions between different feeding habits revealed notable variations across most comparisons. Co-occurrence network analysis for each feeding habit revealed that all networks were dominated by the strong positive correlation among pairs of bacterial genera abundances, while the basic properties varied, implying differences in gut microbiota interactions based on the feeding habit. In conclusion, these results confirmed that the feeding habit could affect the structure and composition of the gut content microbiota but also changed their functions and interactions.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142681848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Swimming kinematics of deep-sea fishes. 深海鱼类的游泳运动学。
IF 1.7 3区 农林科学
Journal of fish biology Pub Date : 2024-11-19 DOI: 10.1111/jfb.15989
Brett Woodworth, Jessica Palmeri, Patrick Flannery, Lydia Fregosi, Cassandra Donatelli, Mackenzie E Gerringer
{"title":"Swimming kinematics of deep-sea fishes.","authors":"Brett Woodworth, Jessica Palmeri, Patrick Flannery, Lydia Fregosi, Cassandra Donatelli, Mackenzie E Gerringer","doi":"10.1111/jfb.15989","DOIUrl":"https://doi.org/10.1111/jfb.15989","url":null,"abstract":"<p><p>Although the deep oceans represent Earth's largest habitat, the challenges of studying deep-sea organisms in situ have limited our understanding of adaptation, ecology, and behaviour in these important ecosystems. One fundamental trait of fishes that remains largely unexplored in the deep ocean is swimming, a vital process for movement, migration, and dispersal in marine habitats. Deep-sea conditions such as temperature, pressure, and food availability could each impact the speed and efficiency of swimming in fishes. To investigate swimming kinematics of fishes with increasing depth, we analysed in situ video of bony fishes across a 6000-m depth gradient. We compared open-source videos of fishes from National Oceanic and Atmospheric Administration (NOAA) Ocean Exploration with tank-based recordings of shallow-water relatives from Puget Sound, Washington, USA to understand how both habitat depth and phylogeny influence swimming in fishes. We analysed kinematics in four dominant demersal fish groups, the orders Anguilliformes, Gadiformes, Ophidiiformes, and Perciformes. Deep-sea fishes swam consistently slowly. Swimming kinematics varied across temperature, oxygen, body elongation, and depth. These results suggest that swimming kinematics do not change linearly with increasing habitat depth in fishes and that the impacts of deep-sea conditions such as low temperatures, high pressures, and low nutrient availability on swimming behaviour need to be considered independently of one another. These findings provide insight into the evolution of fish form and function in the deep ocean.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142675889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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