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Otolith oxygen isotopes inform dispersal and movement patterns for eastern school (Sillago flindersi) and stout (Sillago robusta) whiting along the east coast of Australia 耳石氧同位素为澳大利亚东海岸东部白鲸(Sillago flindersi)和粗壮白鲸(Sillago robusta)的扩散和运动模式提供了信息
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-06-13 DOI: 10.1016/j.fishres.2025.107419
Melissa Tan , Brendan P. Kelaher , Lewis Adler , Curtis Champion , Karina C. Hall
{"title":"Otolith oxygen isotopes inform dispersal and movement patterns for eastern school (Sillago flindersi) and stout (Sillago robusta) whiting along the east coast of Australia","authors":"Melissa Tan ,&nbsp;Brendan P. Kelaher ,&nbsp;Lewis Adler ,&nbsp;Curtis Champion ,&nbsp;Karina C. Hall","doi":"10.1016/j.fishres.2025.107419","DOIUrl":"10.1016/j.fishres.2025.107419","url":null,"abstract":"<div><div>Understanding stock structure and connectivity of harvested marine fishes is crucial for informed management and conservation efforts. We analysed stable oxygen isotopes in fish otolith carbonate to infer dispersal and movement patterns of stout whiting (<em>Sillago robusta</em>) and eastern school whiting (<em>Sillago flindersi</em>) in southeastern Australia. Adult fish were collected from commercial catches across seven locations spanning 8° latitude for stout whiting and 16 locations distributed over 15° latitude for eastern school whiting. Sagittal otoliths were sectioned, polished and micromilled to produce a carbonate sample from the juvenile ‘core’ and adult ‘edge’ portion of each otolith. Samples were analysed for oxygen isotope ratios (δ<sup>18</sup>O<sub>otolith</sub>) using isotope ratio mass spectrometry. Oxygen isotope ratios in stout whiting otoliths were significantly influenced by the interaction between capture location and life stage, with temperature preferences between life stages more pronounced with increasing latitude. Variation in δ<sup>18</sup>O<sub>otolith</sub> values among adult eastern school whiting sampled from different locations indicated limited connectivity between northern and southern extremities of the species distribution, but considerable mixing across adjacent latitudes. Additionally, significant variation in δ<sup>18</sup>O<sub>otolith</sub> values between male and female eastern school whiting suggested sex-biased dispersal may be occurring, with males dispersing further than females. For each species, low core δ<sup>18</sup>O<sub>otolith</sub> values implied movement from warmer juvenile nursery habitats to cooler waters as adults, which may involve inshore-offshore ontogenetic migrations and/or southerly longshore migrations using prevailing currents. The intricate dynamics of connectivity and ontogenetic movements of stout and eastern school whiting across multiple jurisdictions highlight the importance for co-operative and collaborative management efforts.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"288 ","pages":"Article 107419"},"PeriodicalIF":2.2,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Assessing the social-ecological dimensions of Dungeness crab fishery closures in Southeast Alaska from analysis of public records 从公共记录分析评估阿拉斯加东南部邓杰内斯蟹渔业关闭的社会生态维度
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-06-12 DOI: 10.1016/j.fishres.2025.107429
Rondi Nordal , Anne H. Beaudreau , Eréndira Aceves-Bueno , Andrew Olson
{"title":"Assessing the social-ecological dimensions of Dungeness crab fishery closures in Southeast Alaska from analysis of public records","authors":"Rondi Nordal ,&nbsp;Anne H. Beaudreau ,&nbsp;Eréndira Aceves-Bueno ,&nbsp;Andrew Olson","doi":"10.1016/j.fishres.2025.107429","DOIUrl":"10.1016/j.fishres.2025.107429","url":null,"abstract":"<div><div>Spatial management of marine resources is of growing interest at local, national, and international scales. Understanding the characteristics of spatial closures that make them advantageous in areas of intense resource dependency is crucial for understanding their utility as a fishery management tool. Here, we examined the process of establishing fisheries closures for Dungeness crab (<em>Metacarcinus magister</em>) in southeastern Alaska through analysis of publicly available records from the Alaska Board of Fisheries (BOF), a regulatory body that allows members of the public to propose changes to fisheries management. Using 14 years of BOF meeting records, we synthesized a rich dialogue on the social, ecological, and policy dimensions of crab fishery closure proposals. Key themes identified through qualitative analysis of 18 proposals include an emphasis on preserving local access to the fishery, complex social dynamics among user groups, differences in representation by various user groups throughout the public process, concerns around inequitable impacts of closures, and concerns around the quality and quantity of data for managing the fishery. These themes indicate that social needs, rather than ecological concerns, led the justification of proposals. This novel application of public records analysis is a valuable approach for understanding the social and political conditions under which regulatory proposals may succeed or fail, and the role of fishers’ and managers’ values in determining outcomes. Improved knowledge sharing among fishers and management bodies may help to better anticipate and respond to social-ecological change, and address challenges in ways that center community needs.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"288 ","pages":"Article 107429"},"PeriodicalIF":2.2,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Examining potential biases through prior predictive checks: Prior mis-specifications and their impact on Bayesian stock assessments 通过先前的预测检查检查潜在的偏差:先前的错误规格及其对贝叶斯库存评估的影响
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-06-10 DOI: 10.1016/j.fishres.2025.107405
Kyuhan Kim , Philipp Neubauer
{"title":"Examining potential biases through prior predictive checks: Prior mis-specifications and their impact on Bayesian stock assessments","authors":"Kyuhan Kim ,&nbsp;Philipp Neubauer","doi":"10.1016/j.fishres.2025.107405","DOIUrl":"10.1016/j.fishres.2025.107405","url":null,"abstract":"<div><div>Bayesian stock assessment models are widely used to evaluate fish stock status and inform management decisions. The Bayesian approach enables the incorporation of prior information into assessment models, improving estimated precision and constraining over-parameterised models towards solutions that align with prior expectations. Understanding the interaction between joint priors across model parameters and the model likelihood is crucial for robust Bayesian inference, yet this aspect is seldom addressed in applied Bayesian stock assessments. Depending on the model, structural assumptions, and parameterisations, various prior mis-specification issues may emerge, leading to well-documented problems. In this study, we present two common prior mis-specifications using three stock assessment models of increasing complexity applied to South Atlantic albacore tuna data. The first mis-specification stems from an inconsistency between the prior and likelihood function, where the model structure implicitly modifies the prior to avoid negative biomass calculations. The second mis-specification involves uniform priors with constrained support on parameters like harvest rates or population scale, which, despite their intended non-informativeness, can be highly informative for derived quantities from the model. Simulations show that failing to address these issues in the likelihood function can result in misleading inference. We demonstrate that such issues can be mitigated by carefully encoding prior information with the help from prior predictive distributions of quantities directly linked to the likelihood function. To prevent potentially misinformed inference in Bayesian stock assessments, we recommend routinely conducting prior predictive checks to identify and correct unintended interactions between the likelihood and implicit information in joint priors.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"288 ","pages":"Article 107405"},"PeriodicalIF":2.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144254000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 density and sound-speed contrast values of sakura shrimp (Lucensosergia lucens) 樱花对虾的密度和声速对比值
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-06-09 DOI: 10.1016/j.fishres.2025.107427
Burak Saygili , Mizuki Habaguchi , Jing Liu , Natsuki Yamamoto , Kenichi Kobayashi , Tetsutaro Aikawa , Fuxiang Hu , Kazuo Amakasu
{"title":"The density and sound-speed contrast values of sakura shrimp (Lucensosergia lucens)","authors":"Burak Saygili ,&nbsp;Mizuki Habaguchi ,&nbsp;Jing Liu ,&nbsp;Natsuki Yamamoto ,&nbsp;Kenichi Kobayashi ,&nbsp;Tetsutaro Aikawa ,&nbsp;Fuxiang Hu ,&nbsp;Kazuo Amakasu","doi":"10.1016/j.fishres.2025.107427","DOIUrl":"10.1016/j.fishres.2025.107427","url":null,"abstract":"<div><div>Sakura shrimp (<em>Lucensosergia lucens</em>) are an important fishery resource in Suruga Bay, Japan. We investigated the density contrast <span><math><mi>g</mi></math></span> and sound-speed contrast <span><math><mi>h</mi></math></span> of the shrimp. Acoustic survey methods using scientific echosounders are expected to be applied in the future for the estimation of shrimp abundance, but the <span><math><mi>g</mi></math></span>- and <span><math><mi>h</mi></math></span>-values, which are essential parameters for predicting the target strength (TS) by theoretical acoustic scattering models, have not been clarified. In this study, the <span><math><mi>g</mi></math></span>-values were determined based on body-density measurements conducted six times with the density-bottle method. The mean <span><math><mi>g</mi></math></span>-values for each measurement ranged from 1.0461 to 1.0590, and the overall mean and the standard deviation (SD) for a total of 118 individuals were 1.0508 and 0.0050, respectively. The <span><math><mi>h</mi></math></span>-values were inferred by best-fitting the predicted TS spectra by the distorted wave Born approximation-based deformed cylinder model to the measured TS spectra by a broadband pulse-echo system using a linear frequency modulated signal with a sweep frequency range at 20–220 kHz. The <span><math><mi>h</mi></math></span>-values of 12 individuals ranged from 0.990 to 1.029, and the mean and SD were 1.006 and 0.012, respectively. These results will contribute to establishing the acoustic survey method. According to a simple examination, variations of ± 1 SD in the <em>g</em>- and <em>h</em>-values resulted in changes in TS ranging from −3.1 to 2.2 dB. To clarify the variations in <span><math><mi>g</mi></math></span> and <span><math><mi>h</mi></math></span> associated with the shrimp growth and seasons, further investigations need to be conducted regularly.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"288 ","pages":"Article 107427"},"PeriodicalIF":2.2,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144240154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Using angler-submitted records to interpret the spatial seasonality of a large predator (Black bass, Micropterus spp.) 利用垂钓者提交的记录来解释大型捕食者(黑鲈鱼,小翅鱼)的空间季节性。
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-06-05 DOI: 10.1016/j.fishres.2025.107423
L.E. Miranda , Frank Griffin , J. Wesley Neal , Thomas J. Lang , Natalie Goldstrohm , Michael Mehlmann
{"title":"Using angler-submitted records to interpret the spatial seasonality of a large predator (Black bass, Micropterus spp.)","authors":"L.E. Miranda ,&nbsp;Frank Griffin ,&nbsp;J. Wesley Neal ,&nbsp;Thomas J. Lang ,&nbsp;Natalie Goldstrohm ,&nbsp;Michael Mehlmann","doi":"10.1016/j.fishres.2025.107423","DOIUrl":"10.1016/j.fishres.2025.107423","url":null,"abstract":"<div><div>In addition to having cultural, social, and economic significance, large predatory fish affect aquatic communities from the top down and serve as markers of ecosystem health. A focus on large predators is critical for managing ecosystems, conserving species, and guaranteeing the sustainability of aquatic resources. Recreational fishing is inherently biased towards large fish, and anglers possess the strength in numbers and geographical dispersion that enable them to sample the upper tiers of size distributions rarely encountered in standard fish surveys. We sought to further understand the ecological requirements and spatial seasonality of exceptionally sized black bass (<em>Micropterus</em> spp.) via angler catches. Black bass <u>&gt;</u> 3.6 kg were examined across 147 reservoirs in Texas, USA, with 2817 fish recorded by anglers into an online database in 2018–2024. Most fish were caught in late-winter and early-spring in line with spawning activities that included movements in-and-out of shallow water, nest building, and nest defense. Approximately 54 % of fish were caught with bottom-oriented fishing lures and techniques, and 40 % midwater; surface catches were less common. The efficacy of angling techniques varied seasonally. Those effective in winter were midwater, while those effective in summer were bottom or surface. Conversely, a combination of bottom and midwater techniques were effective in the fall and spring, suggesting cyclic habitat transitions. Moreover, the frequency with which fish were caught over various macrohabitats varied seasonally and cyclically. Our findings have the potential to inform habitat management that supports large predators and their migratory relocations. Our findings also underscore the value of using anglers and technology as sources of difficult-to-obtain fish and environmental data that may evade regular monitoring.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"287 ","pages":"Article 107423"},"PeriodicalIF":2.2,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144222655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
A multi-platform metabolomics approach to investigate the effects of acute thermal stress on New Zealand black-footed abalone (Haliotis iris) 多平台代谢组学方法研究急性热应激对新西兰黑足鲍鱼的影响
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-06-04 DOI: 10.1016/j.fishres.2025.107426
Thao V. Nguyen , Andrea C. Alfaro , Thanh Nha Ngo , Anu Kumar , David Beale
{"title":"A multi-platform metabolomics approach to investigate the effects of acute thermal stress on New Zealand black-footed abalone (Haliotis iris)","authors":"Thao V. Nguyen ,&nbsp;Andrea C. Alfaro ,&nbsp;Thanh Nha Ngo ,&nbsp;Anu Kumar ,&nbsp;David Beale","doi":"10.1016/j.fishres.2025.107426","DOIUrl":"10.1016/j.fishres.2025.107426","url":null,"abstract":"<div><div>The rise in ocean temperatures and the increasing frequency of marine heatwave events pose significant threats to shellfish fisheries and marine ecosystems worldwide. In New Zealand, natural abalone (<em>Haliotis iris</em>) populations have recently experienced elevated mortalities, particularly during summer months, due to these extreme thermal events. This study employed a multi-platform metabolomics and lipidomics approach using gas chromatography–mass spectrometry (GC–MS) and liquid chromatography–mass spectrometry (LC–MS) approach, to investigate the metabolic responses of adult abalone to three temperature treatments (14, 19 and 24 °C) over a 24-hour exposure period in a controlled laboratory experiment. A total of 34 metabolites and 34 lipids were identified in foot muscle tissue as significantly altered across temperature treatments, with the majority exhibiting higher concentrations at 24 °C compared to the lower temperature groups. These metabolic shifts indicate cellular and oxidative damage induced by acute thermal stress, along with evidence of metabolic depression, disruptions in energy metabolism, lipid metabolism, osmotic regulation, and alterations in membrane composition and stability. Notably, the decrease in aspartic acid levels, alongside changes in tricarboxylic acid (TCA) cycle intermediates, suggests the activation of the aspartate–succinate pathway as an alternative energy production mechanism under heat stress. Overall, this study provides valuable insights into the metabolic and lipidomic responses of abalone to rising ocean temperatures, enhancing our understanding of how marine organisms respond to climate change and extreme thermal events.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"287 ","pages":"Article 107426"},"PeriodicalIF":2.2,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 spatial and temporal stability of tributary-specific otolith trace element signatures 支流耳石微量元素特征的时空稳定性评价
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-06-03 DOI: 10.1016/j.fishres.2025.107420
O.V. Raven , J.E.M. Couper , H. Trotter , M.R. Reid , R. Svirgsden , M. Rohtla , G.P. Closs
{"title":"Assessment of spatial and temporal stability of tributary-specific otolith trace element signatures","authors":"O.V. Raven ,&nbsp;J.E.M. Couper ,&nbsp;H. Trotter ,&nbsp;M.R. Reid ,&nbsp;R. Svirgsden ,&nbsp;M. Rohtla ,&nbsp;G.P. Closs","doi":"10.1016/j.fishres.2025.107420","DOIUrl":"10.1016/j.fishres.2025.107420","url":null,"abstract":"<div><div>Otolith trace element analysis is a powerful tool for studying fish migration between juvenile and adult habitats. To track catchment-scale migration, trace element signatures in juvenile otoliths are compared to the otolith natal region of adults, with the aim of matching adults to their natal habitat. However, the stability of signatures in natal habitat over time, crucial for this method to work across generations, has rarely been tested. To evaluate spatiotemporal stability of natal stream trace element signatures in otoliths, a four-year study in New Zealand's lower Clutha River/Mata-Au was executed. 602 brown trout juveniles from 20 tributaries were sampled and trace element analysis was performed, enabling comparisons of the signatures within each stream over time. The findings suggest the signatures of the elements Mn, Sr, and Ba are generally stable over four-years. This means that, it is not necessary to analyse juvenile otoliths from each year. Spatial variability of Mn, Sr and Ba was tested by using Random Forest and Linear Discriminant Analysis models, which assigned juvenile trout to the correct stream in 61 % and 52 % cases, respectively. Grouping the sites using Nearest-Neighbour Cluster Analysis resulted in 93 % accuracy for both models. Collection of juveniles from key spawning streams across 2–3 years should be sufficient to establish reference signatures for each tributary that will facilitate tracking of adult migration over several years.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"287 ","pages":"Article 107420"},"PeriodicalIF":2.2,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Application of otolith shape analysis to species separation in silversides (Odontesthes, Atherinopsidae) from South America and the South Atlantic Ocean 耳石形态分析在南美和南大西洋银科(齿形科,Atherinopsidae)种分离中的应用
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-06-03 DOI: 10.1016/j.fishres.2025.107421
Santiago Morawicki , Patricio Solimano , Catalina Guidi , Gustavo A. Thompson , Alejandra V. Volpedo
{"title":"Application of otolith shape analysis to species separation in silversides (Odontesthes, Atherinopsidae) from South America and the South Atlantic Ocean","authors":"Santiago Morawicki ,&nbsp;Patricio Solimano ,&nbsp;Catalina Guidi ,&nbsp;Gustavo A. Thompson ,&nbsp;Alejandra V. Volpedo","doi":"10.1016/j.fishres.2025.107421","DOIUrl":"10.1016/j.fishres.2025.107421","url":null,"abstract":"<div><div>Argentina has one of the largest numbers of species of the genus <em>Odontesthes</em> that coexist in the world (<em>Odontesthes argentinensis</em>, <em>O. platensis, O. smitti, O. nigricans, O. incisa, O. bonariensis</em> and <em>O. hatcheri</em>). These species have an important ecological role in the trophic webs in the region and in commercial fisheries. However, due to the number of species of the genus <em>Odontesthes</em>, the identification of otoliths in feces and stomach contents of ichthyophages is difficult, as well as in fisheries where the different species are commercialized under the same common name. The aim of this study is the use of otolith shape outline as a morphometric tool for the identification of seven silverside species that coexist in marine and freshwater environments of Argentina. Otolith sagittae of 387 silverside specimens were processed using ShapeR package (R statistical software). The Wavelet coefficients (WCs) and Fourier descriptors (FDs) obtained were analyzed using multivariate methods. Results show that the percentage of correctly classified silversides considering WCs, FDs and WCs and FDs together were 71.83 %, 78.81 %, and 88.63 % respectively. There are significant differences among the otolith shape outline of these species (PERMANOVA test, p &lt; 0.0001). <em>O. platensis, O. argentinensis, O. smitti</em> and <em>O. bonariensis</em> otoliths have elongated shapes, while those of <em>O. nigricans</em> and <em>O. incisa</em> are rounded. Shape differences in the otolith’s antero-posterior axis (<em>rostrum</em>-<em>antirostrum</em>) and posterior end are the more important for species differentiation. Results could contribute to the identification of these species of silversides in dietary studies of ichthyophages and for the identification of the species marketed jointly under the name of silverside on which specific fishing measures could be carried out.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"287 ","pages":"Article 107421"},"PeriodicalIF":2.2,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144194665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Age estimation in three subtropical fish species by microstructural analysis of otoliths 用耳石显微结构分析估计三种亚热带鱼类的年龄
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-06-02 DOI: 10.1016/j.fishres.2025.107424
Letícia dos Santos Alves , Alberto Teodorico Correia , André Martins Vaz-dos-Santos
{"title":"Age estimation in three subtropical fish species by microstructural analysis of otoliths","authors":"Letícia dos Santos Alves ,&nbsp;Alberto Teodorico Correia ,&nbsp;André Martins Vaz-dos-Santos","doi":"10.1016/j.fishres.2025.107424","DOIUrl":"10.1016/j.fishres.2025.107424","url":null,"abstract":"<div><div><em>Atherinella brasiliensis</em>, <em>Diapterus rhombeus</em> and <em>Eucinostomus argenteus</em> are fish species widely distributed in the western Atlantic, inhabiting coastal habitats and the inner continental shelf (&lt;50 m depth), where they play key ecological roles and have direct and indirect fishery value. Traditional otolith macrostructural analysis has failed to age these species; therefore, otolith microstructural analysis (OMA) was applied to both juvenile and adult specimens. Polishing of sagittal (for <em>A. brasiliensis</em> and <em>E. argenteus</em>) and transverse cross-sectioned (for <em>D. rhombeus</em>) otoliths allowed microincrements to be counted with precision between readers (average percent error values &lt; 6 %). Counts were adjusted to overcome some artifacts near to the otolith edge due to the polishing process. Microincrements counts and radius measurements were used to back-calculate length-at-age data (modified Fry’s model) and then to fit growth models (multi-model inference). Methodological accuracy includes the adoption of the biological intercept (the beginning of the otolith radius-total length relationship) in the back-calculation. For <em>A. brasiliensis</em>, the number of microincrements varied between 125 and 374, for <em>D. rhombeus</em> were between 91 and 609, and for <em>E. argenteus</em> between 100 and 274. The Gompertz model best described the growth of <em>A. brasiliensis</em> (<em>L</em><sub>∞</sub>: 104.88 mm, <em>K</em>: 3.554<sub>,</sub> <em>G</em>: 0.01154/day) and <em>E. argenteus</em> (<em>L</em><sub>∞</sub>: 109.23 mm, <em>K:</em> 2.517<sub>,</sub> <em>G</em>: 0.0102/day) while the von Bertalanffy model best described the growth of <em>D. rhombeus</em> (<em>L</em><sub>∞</sub>: 232.01 mm, <em>k:</em> 0.00308/day, <em>t</em><sub><em>0</em></sub>: −2.179 days). These results are novel for these species, supporting the use of this method in species without clear macrostructural increments. Although laborious and time-consuming, OMA, combined with the proposed correction protocol for microincrements counts, offers a robust methodological framework to fill critical gaps in age and growth studies for coastal fish species in variable environments.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"287 ","pages":"Article 107424"},"PeriodicalIF":2.2,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Corrigendum to “Gender differences in participation rate, socioeconomic profile, recreational motivation, and wildlife-related value orientation among recreational fishers in Spain” [Fish. Res. 285 (2025) 107363] “西班牙休闲渔民参与率、社会经济状况、休闲动机和野生动物相关价值取向的性别差异”的勘误表[Fish]。Res. 285 (2025) 107363]
IF 2.2 2区 农林科学
Fisheries Research Pub Date : 2025-05-29 DOI: 10.1016/j.fishres.2025.107417
Beatriz Morales-Nin , Robert Arlinghaus , Josep Alós
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