Environmental Biology of Fishes最新文献_第10页

Hesperidin Supplementation Improves Altered PON -1, LDL Oxidation, Inflammatory Response and Hepatic Function in an Experimental Rat Model of Hyperlipidemia. 补充橙皮甙可改善实验性高脂血症大鼠模型中改变的 PON-1、低密度脂蛋白氧化、炎症反应和肝功能。

IF 1.4 4区环境科学与生态学

Environmental Biology of Fishes Pub Date : 2024-04-01 Epub Date: 2023-06-20 DOI: 10.1007/s12291-023-01140-5

Raushan Kumar, Mohammad Idreesh Khan, Fauzia Ashfaq, Abdulrahman A Alsayegh, Fahmida Khatoon, Tahani Nasser Altamimi, Syed Ibrahim Rizvi

{"title":"Hesperidin Supplementation Improves Altered PON -1, LDL Oxidation, Inflammatory Response and Hepatic Function in an Experimental Rat Model of Hyperlipidemia.","authors":"Raushan Kumar, Mohammad Idreesh Khan, Fauzia Ashfaq, Abdulrahman A Alsayegh, Fahmida Khatoon, Tahani Nasser Altamimi, Syed Ibrahim Rizvi","doi":"10.1007/s12291-023-01140-5","DOIUrl":"10.1007/s12291-023-01140-5","url":null,"abstract":"In this study, we have examined the effect of hesperidin on rats fed on an experimental high-fat diet. Male Wistar rats were given a high-fat diet orally for one month for developing an HFD (High fat- diet) model. Rats were also supplemented with hesperidin (100 mg/kg body weight) for one month. We determined serum LDL (Low-density lipoprotein) oxidation, Paraoxonase-1 (PON-1) activity, and histopathological profile of the liver. Inflammatory cytokines levels were also measured in serum. HFD induced significant changes in LDL oxidation and PON-1 activity. Liver tissue histopathology and gene expression of inflammatory markers (Il-6(Interleukin-6), TNF- alpha (Tumor necrosis factor alpha), NF-KB (Nuclear factor kappa B) show that significant changes occur in the hyperlipidemic model of rats. We also show that hesperidin can effectively improve plasma antioxidant, LDL oxidation, and inflammatory cytokine expression in rats already subjected to hyperlipidemic stress. We conclude that hesperidin may protect the liver from oxidative stress by improving hepatic function.","PeriodicalId":11799,"journal":{"name":"Environmental Biology of Fishes","volume":"96 1","pages":"257-263"},"PeriodicalIF":1.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10987415/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73933080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Community structure of indigenous fishes relative to habitat variation and invasive tilapia in lakes of Quintana Roo, Mexico 墨西哥金塔纳罗奥州湖泊中与生境变化和入侵罗非鱼有关的本地鱼类群落结构

IF 1.4 4区环境科学与生态学

Environmental Biology of Fishes Pub Date : 2024-03-28 DOI: 10.1007/s10641-024-01537-y

Carlos A. Gracida-Juárez, Juan J. Schmitter-Soto, Martin J. Genner

{"title":"Community structure of indigenous fishes relative to habitat variation and invasive tilapia in lakes of Quintana Roo, Mexico","authors":"Carlos A. Gracida-Juárez, Juan J. Schmitter-Soto, Martin J. Genner","doi":"10.1007/s10641-024-01537-y","DOIUrl":"https://doi.org/10.1007/s10641-024-01537-y","url":null,"abstract":"Fish communities of tropical lakes are commonly predicted by local environmental variables, including depth, temperature, oxygen concentration, and substrate composition. Increasingly, however, lacustrine fish communities are being impacted by invasive species. In the state of Quintana Roo, on the Caribbean versant of the Yucatan Peninsula in Mexico, inland aquaculture production has resulted in the widespread establishment of African tilapia (Oreochromis sp.). However, there are still limited quantitative data on their abundance relative to indigenous species, or their influence on native fish diversity. Here, we quantified the ichthyofauna of six lakes from this region, alongside physical and chemical environmental variables. Overall, we observed that greater dissolved oxygen concentration and shallower depths were associated with the highest fish biodiversity across lakes. Moreover, spatial comparisons additionally highlighted the importance of substrate heterogeneity and lake area as influential in determining native fish community structure. Notably, in all lakes, tilapia were relatively uncommon, comprising less than 3% of all fish captured, and their presence was not a significant predictor of indigenous fish biodiversity. Based on these results, we suggest that tilapia may have strong limitations on their population size, plausibly due to the presence of predatory native fish species, or scarce suitable ecological resources (food, breeding habitat). Conservation-focussed lake-wide management of native species via protection of core habitat characteristics may be key to promoting environmental resistance against negative effects of tilapia regional expansions.","PeriodicalId":11799,"journal":{"name":"Environmental Biology of Fishes","volume":"12 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140312915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Resource partitioning among endangered and non-native bitterling fishes in a small pond: insights from stable isotope and gut content analyses 小池塘中濒危苦丁鱼和非本地苦丁鱼的资源分配：稳定同位素和肠道成分分析的启示

IF 1.4 4区环境科学与生态学

Environmental Biology of Fishes Pub Date : 2024-03-27 DOI: 10.1007/s10641-024-01541-2

Natsuru Yasuno, Yasufumi Fujimoto, Eisuke Kikuchi

{"title":"Resource partitioning among endangered and non-native bitterling fishes in a small pond: insights from stable isotope and gut content analyses","authors":"Natsuru Yasuno, Yasufumi Fujimoto, Eisuke Kikuchi","doi":"10.1007/s10641-024-01541-2","DOIUrl":"https://doi.org/10.1007/s10641-024-01541-2","url":null,"abstract":"The population decline of the endangered bitterling species, Acheilognathus typus, following non-native bitterling invasion underscores the need to understand interspecific interactions among bitterling fishes. In this study, the dietary habits of A. typus, alongside introduced non-native bitterling species (Acheilognathus rhombeus and Rhodeus ocellatus ocellatus) and other omnivorous fishes (Oryzias latipes, Pseudorasbora parva, and Rhinogobius sp.), were investigated in a small pond in Japan using gut content and stable isotope analyses (δ13C and δ15N). Analysis revealed that microalgae, particularly diatoms with periphytic or benthic life forms, dominated the gut contents of the three bitterling species, which exhibited high dietary overlaps (Pianka’s index range 0.89–0.98). Although bitterling species displayed similar δ13C (mean range −18.4 to −16.1‰) and δ15N (12.1 to 12.6‰) values, the other omnivorous fishes exhibited distinct isotopic signatures: lower δ13C and higher δ15N values. Isotopic niche overlaps among the three bitterling species were limited (0–2.4%). Furthermore, A. typus and A. rhombeus showed no overlap in the corrected standard ellipse area. These findings suggest that the three bitterling species may forage on similar food items, primarily microalgae, with differing stable isotope ratios, enabling them to partition foraging sites within the confines of a small pond where competition may arise.","PeriodicalId":11799,"journal":{"name":"Environmental Biology of Fishes","volume":"72 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140312732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Habitat characteristics and diel patterns of sand lance (Ammodytes spp) in coastal Newfoundland 纽芬兰沿海沙矛（Ammodytes spp）的栖息地特征和日间模式

IF 1.4 4区环境科学与生态学

Environmental Biology of Fishes Pub Date : 2024-03-26 DOI: 10.1007/s10641-024-01540-3

{"title":"Habitat characteristics and diel patterns of sand lance (Ammodytes spp) in coastal Newfoundland","authors":"","doi":"10.1007/s10641-024-01540-3","DOIUrl":"https://doi.org/10.1007/s10641-024-01540-3","url":null,"abstract":"<h3>Abstract</h3> Fish select habitat based on many abiotic and biotic factors, with some species having narrow habitat requirements due to morphological traits. Fish of the genus Ammodytes (sand lance) are small schooling pelagic forage fish that lack a swim bladder and burrow into sandy substrate when not actively feeding to avoid predation and reduce energy expenditure. Sand lance species in the Pacific and Northeast Atlantic show diel shifts in feeding in the water column and burrowing, but diel patterns for species in the Northwest Atlantic remain unclear. The objectives of this study were to investigate sand lance habitat characteristics and diel behaviour during July–August 2013–2021 on the northeast Newfoundland coast. Integrating underwater camera surveys, sediment grabs, and hydroacoustics, sand lance were found associated with fine sediment (0.5–4 mm) that were < 11˚C (typically ~ 2˚C). Acoustic sand lance biomass in the water column tended to decline between the morning (09:00 Newfoundland Daylight Time, NDT) and late evening (23:00 NDT), while fish densities in sediment grabs peaked during the evening (~ 19:00 NDT) when buried fish more commonly had non-empty stomachs. Findings suggest that sand lance primarily fed in the water column during the day and burrowed in the evening once stomachs were full. Diel patterns were size-dependent, with a higher proportion of larger sand lance (≥ 150 mm) caught in sediments throughout the night, when smaller sand lance (< 150 mm) were absent from sediments. Overall, sand lance species in the Northwest Atlantic appear to exhibit similar habitat requirements and diel patterns to those in other regions.","PeriodicalId":11799,"journal":{"name":"Environmental Biology of Fishes","volume":"11 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140298681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Life history characteristics and distribution of lake sturgeon in an unfragmented section of a northern river 北方河流未破碎河段中湖鲟鱼的生活史特征和分布情况

IF 1.4 4区环境科学与生态学

Environmental Biology of Fishes Pub Date : 2024-03-23 DOI: 10.1007/s10641-024-01539-w

Mike Friday, Tim Haxton

{"title":"Life history characteristics and distribution of lake sturgeon in an unfragmented section of a northern river","authors":"Mike Friday, Tim Haxton","doi":"10.1007/s10641-024-01539-w","DOIUrl":"https://doi.org/10.1007/s10641-024-01539-w","url":null,"abstract":"Lake sturgeon (Acipenser fulvescens), a potamodromous species, have been impacted by habitat fragmentation. Understanding the variation in population structure and spatial distribution in regulated and unimpeded rivers is valuable for recovery or rehabilitation purposes. The objectives of this study were to assess the relative abundance and spatial distribution of lake sturgeon in Rainy River and ascertain demographics of inhabitant juveniles. A standardized, index-netting study was conducted in the Rainy River to target juvenile and adult lake sturgeon. A total of 472 juvenile and 56 adult lake sturgeon were sampled. Juvenile and adult lake sturgeon were found throughout the river; however, juvenile relative abundance was greatest in the lowest river section close to the confluence with Lake of the Woods. Spatial clustering of juveniles and to lesser extent adults was also evident but adults were not necessarily segregated from juveniles. Juvenile annual survival rates were estimated to be approximately 75% and recruitment within this population was detected in all years but was variable in size. There were strong and weak year classes produced; however, they could not be explained by any of the environmental variables assessed.","PeriodicalId":11799,"journal":{"name":"Environmental Biology of Fishes","volume":"42 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140202975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Functional diversity of fish assemblages across a latitudinal gradient in coral ecosystems of the Mexican Tropical Pacific 墨西哥热带太平洋珊瑚生态系统纬度梯度鱼群的功能多样性

IF 1.4 4区环境科学与生态学

Environmental Biology of Fishes Pub Date : 2024-03-22 DOI: 10.1007/s10641-024-01538-x

{"title":"Functional diversity of fish assemblages across a latitudinal gradient in coral ecosystems of the Mexican Tropical Pacific","authors":"","doi":"10.1007/s10641-024-01538-x","DOIUrl":"https://doi.org/10.1007/s10641-024-01538-x","url":null,"abstract":"<h3>Abstract</h3> Fishes are relevant indicators of reefs’ conservation status due to the wide variety of functions they perform in the ecosystem. Natural and anthropogenic-induced threats are causing declines in biomass and diversity locally, with immediate effects on trophic structure and ecosystem function. This study evaluated the spatial variation of species richness and the alpha and beta functional diversity of fish assemblages across the Mexican Tropical Pacific (MTP). Visual fish censuses were performed in nine localities between 2012 and 2020. The results showed that species richness and functional diversity of the reef-associated fish assemblage vary at different spatial scales (local and regional), with the highest variability on the local scale. The functional richness and functional divergence presented high values in most localities. On their part, functional beta diversity among regions was low, with almost no functional turnover, while higher trait turnover was observed among localities. This study complements taxonomic diversity metrics by identifying differences due to local conditions, with human intervention as a critical factor. Therefore, it provides information tools that can help improve the management of marine communities subjected to distinct types and degrees of intervention in the MTP.","PeriodicalId":11799,"journal":{"name":"Environmental Biology of Fishes","volume":"44 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140202981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Observations of skin color aberrations in four shark species off the coast of southern California, USA 观察美国南加州海岸四种鲨鱼的肤色畸变情况

IF 1.4 4区环境科学与生态学

Environmental Biology of Fishes Pub Date : 2024-03-20 DOI: 10.1007/s10641-024-01532-3

Zachary R. Skelton, Tanya S. Prinzing, Andrew P. Nosal, Zoey Vagner, Peter Demman, Phil J. Zerofski, Nicholas C. Wegner

{"title":"Observations of skin color aberrations in four shark species off the coast of southern California, USA","authors":"Zachary R. Skelton, Tanya S. Prinzing, Andrew P. Nosal, Zoey Vagner, Peter Demman, Phil J. Zerofski, Nicholas C. Wegner","doi":"10.1007/s10641-024-01532-3","DOIUrl":"https://doi.org/10.1007/s10641-024-01532-3","url":null,"abstract":"Skin color aberrations are naturally occurring abnormal pigment patterns that are generally rare among chondrichthyans. In this study, we highlight different skin color aberrations from observations of four shark species native to southern California, USA. We report the first recorded instance of apparent leucism (regional pigmentation loss), in a California horn shark Heterodontus francisci (Girard 1855) and tope shark Galeorhinus galeus (Linnaeus 1758). We also report the apparent second documented occurrence of albinism in the swell shark Cephaloscyllium ventriosum (Garman 1880) from a newly hatched captive individual with parents of normal pigmentation. Lastly, we redescribe a rare secondary color morph in the leopard shark Triakis semifasciata Girard 1855 using previous literature and new sightings/images from sharks in the wild. Color aberrations may lead to different advantages (e.g., certain color morphs may offer additional camouflage) or disadvantages (e.g., reduced pigmentation may limit camouflage and protection from ultraviolet light). Documenting these rare color aberrations augments our understanding of how color patterns can vary between individuals and taxa, and ultimately how these conditions potentially impact shark biology.","PeriodicalId":11799,"journal":{"name":"Environmental Biology of Fishes","volume":"176 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140196233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A case study of sequential colonization: intra- and interspecific patterns of recovery in a hydrologically pulsed ecosystem 有序定殖案例研究：水文脉冲生态系统中的种内和种间恢复模式

IF 1.4 4区环境科学与生态学

Environmental Biology of Fishes Pub Date : 2024-03-19 DOI: 10.1007/s10641-024-01535-0

John V. Gatto, Jeffrey L. Kline, Joel C. Trexler

{"title":"A case study of sequential colonization: intra- and interspecific patterns of recovery in a hydrologically pulsed ecosystem","authors":"John V. Gatto, Jeffrey L. Kline, Joel C. Trexler","doi":"10.1007/s10641-024-01535-0","DOIUrl":"https://doi.org/10.1007/s10641-024-01535-0","url":null,"abstract":"Community assembly is influenced by disturbance intensity, sequential colonization (arrival order) of species, and interactions between species arriving early and species arriving later. We documented both intra- and interspecific patterns of colonization following hydrological disturbance using a 20-year time series of marsh-fish density at 21 study sites located in the Everglades, Florida, USA, as a case study of sequential colonization. The critical swimming speed (UCRIT) of 20 juveniles and 20 adults for six species was estimated using UCRIT tests to evaluate if UCRIT predicted timing of re-colonization. We observed a consistent pattern of species colonization over 500 disturbance events. On average, juveniles of early arriving species were collected prior to adults, while adults consistently appeared prior to juveniles for late-arriving species. Density at first collection was inversely correlated with arrival order; early arriving species tended to have higher density when first collected following marsh re-flooding than later arriving ones. Females consistently arrived before males for all species where sex could be identified. Neither absolute nor size-adjusted UCRIT was correlated with arrival order. Although interspecific colonization was highly repeatable, intraspecific differences among demographic groups were species-specific and possibly tied to reproductive biology and juvenile life history. Juvenile early arrival may indicate rapid colonization of pregnant females (Poeciliidae), diapausing eggs laid before marsh drying, or early development of robust swimming capacity (Cyprinodontidae and Fundulidae); in the Everglades, water currents are absent or too weak to support larval drift as an important mechanism. Stage- and sex-specific UCRIT and reproductive traits such as embryo diapause in oviparous species need more attention to understand successional dynamics following disturbance in aquatic communities.","PeriodicalId":11799,"journal":{"name":"Environmental Biology of Fishes","volume":"147 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140169034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Genetic origin and morphometric traits of invasive African catfish (Clarias gariepinus) in a protected area in southeastern Brazil 巴西东南部保护区中外来入侵非洲鲶鱼（Clarias gariepinus）的遗传起源和形态特征

IF 1.4 4区环境科学与生态学

Environmental Biology of Fishes Pub Date : 2024-03-18 DOI: 10.1007/s10641-024-01536-z

Felipe Nóbrega, Michelle Torres Dumith, Fabiano Salgueiro, Alejandra F. G. N. Santos

{"title":"Genetic origin and morphometric traits of invasive African catfish (Clarias gariepinus) in a protected area in southeastern Brazil","authors":"Felipe Nóbrega, Michelle Torres Dumith, Fabiano Salgueiro, Alejandra F. G. N. Santos","doi":"10.1007/s10641-024-01536-z","DOIUrl":"https://doi.org/10.1007/s10641-024-01536-z","url":null,"abstract":"The African catfish Clarias gariepinus is a freshwater species native to nearly all of Africa and a small part of Asia. Due to being a generalist species, highly fertile and able to survive in a wide range of environmental conditions, the African catfish has become invasive in many non-native systems where it was introduced, bringing negative impacts to wild ecosystems. In Brazil, C. gariepinus was introduced from Africa for aquaculture in 1986 and established itself in the wild within a decade, after escaping from aquaculture ponds and being further translocated to be used in recreational fishing. As further evidence of the expansion of this invasive species in Brazil, we sequenced the mitochondrial control region and cytochrome b markers to confirm the occurrence of C. gariepinus in a major river in a protected area in the southeastern region, and to assess its genetic diversity. Morphometric data was also collected to aid species identification and to compare to other invasive populations in Brazil. The analysis of 24 specimens revealed a single haplotype for each marker. The single cytochrome b haplotype is identical to a haplotype from the Democratic Republic of the Congo, unveiling the possible genetic origin of the C. gariepinus lineage that invaded Brazil. Morphometric data suggests consistency in the morphometric traits of C. gariepinus invasive populations in Brazil. The assessment and monitoring of the distribution of C. gariepinus in non-native areas are crucial for the maintenance of native freshwater biodiversity and ecosystem functioning worldwide.","PeriodicalId":11799,"journal":{"name":"Environmental Biology of Fishes","volume":"17 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140169119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Repeated patterns in the body shape of distantly related estuarine and riverine cichlids from Northern Middle America 中美洲北部远亲河口慈鲷体形的重复模式

IF 1.4 4区环境科学与生态学

Environmental Biology of Fishes Pub Date : 2024-03-18 DOI: 10.1007/s10641-024-01534-1

Alfonso A. González-Díaz, Miriam Soria-Barreto, Leonardo Martínez-Cárdenas

{"title":"Repeated patterns in the body shape of distantly related estuarine and riverine cichlids from Northern Middle America","authors":"Alfonso A. González-Díaz, Miriam Soria-Barreto, Leonardo Martínez-Cárdenas","doi":"10.1007/s10641-024-01534-1","DOIUrl":"https://doi.org/10.1007/s10641-024-01534-1","url":null,"abstract":"Body shape is a morphological attribute that frequently changes as organisms adapt to environmental fluctuations and optimize the use of available resources. In fish whose distribution includes estuarine and riverine environments, it is common to observe changes in body shape that are related to maneuverability and speed of movement in response to temporal and spatial variation in water flow. Here, through geometric morphometric and linear morphometric analysis, the intraspecific morphological variation of the cichlids Amphilophus trimaculatus, Astatheros macracanthus, and Mayaheros beani was evaluated to determine if there are repeated patterns of variation in body shape associated with estuarine and riverine environments. The three species showed the same trend of morphological variation; in the estuaries, the specimens were generally deeper and robust, with a long head and short caudal peduncle, while river specimens had shallowed and fusiform bodies with a short head and long caudal peduncle. The magnitude of the changes was not the same in the three species, as M. beani showed greater differentiation, and some morphological measures showed changes in opposite directions between the species. These findings indicate that the environment occupied by the species is an important factor in the differentiation of body shape, probably due to water flow, although other factors may determine the magnitude and direction of change in some morphological traits.","PeriodicalId":11799,"journal":{"name":"Environmental Biology of Fishes","volume":"57 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140153906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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