H. Hata, S. Lavoué, S. Bogorodsky, Tilman J. Alpermann, H. Motomura
The new anchovy Stolephorus meteorum, formerly confused with Stolephorus indicus, is described on the basis of 19 specimens collected from the southern Red Sea. Four other species, previously confused with or placed in the synonymy of S. indicus, have been either redescribed (Stolephorus commersonnii), described as new (Stolephorus belaerius), or resurrected from its synonymy (Stolephorus balinensis and Stolephorus scitulus). The new species shares with the latter four species, plus S. indicus, a relatively short maxilla and pelvic fins, and six or fewer prepelvic scutes but differs from them in the combination of some other characters, including intermediate numbers of gill rakers (total gill rakers on first gill arch 40–43, modally 41), 41 vertebrae, a large head and narrower interorbital area, and longer pelvic fins. A genetic analysis of the mitochondrial cytochrome oxidase I gene (COI) of S. meteorum, new species, S. balinensis, S. belaerius, and S. indicus revealed each species to be genetically divergent from the others by 2.5–3.6% uncorrected distance.
{"title":"A New Stolephorus (Teleostei: Clupeiformes: Engraulidae: Engraulinae) from the Red Sea","authors":"H. Hata, S. Lavoué, S. Bogorodsky, Tilman J. Alpermann, H. Motomura","doi":"10.1643/i2022064","DOIUrl":"https://doi.org/10.1643/i2022064","url":null,"abstract":"The new anchovy Stolephorus meteorum, formerly confused with Stolephorus indicus, is described on the basis of 19 specimens collected from the southern Red Sea. Four other species, previously confused with or placed in the synonymy of S. indicus, have been either redescribed (Stolephorus commersonnii), described as new (Stolephorus belaerius), or resurrected from its synonymy (Stolephorus balinensis and Stolephorus scitulus). The new species shares with the latter four species, plus S. indicus, a relatively short maxilla and pelvic fins, and six or fewer prepelvic scutes but differs from them in the combination of some other characters, including intermediate numbers of gill rakers (total gill rakers on first gill arch 40–43, modally 41), 41 vertebrae, a large head and narrower interorbital area, and longer pelvic fins. A genetic analysis of the mitochondrial cytochrome oxidase I gene (COI) of S. meteorum, new species, S. balinensis, S. belaerius, and S. indicus revealed each species to be genetically divergent from the others by 2.5–3.6% uncorrected distance.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":"111 1","pages":"191 - 203"},"PeriodicalIF":1.5,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48349719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ichthyology & Herpetology (formerly Copeia) publishes work on the biology of fishes, amphibians, and reptiles, or work using those organisms as models for testing hypotheses of broad significance.
{"title":"Fish Diversity of Japan: Evolution, Zoogeography, and Conservation","authors":"Theodore W. Pietsch","doi":"10.1643/t2022068","DOIUrl":"https://doi.org/10.1643/t2022068","url":null,"abstract":"<i>Ichthyology & Herpetology</i> (formerly <i>Copeia</i>) publishes work on the biology of fishes, amphibians, and reptiles, or work using those organisms as models for testing hypotheses of broad significance.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135877314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EDITORIAL NOTES AND NEWS","authors":"","doi":"10.1643/t2023012","DOIUrl":"https://doi.org/10.1643/t2023012","url":null,"abstract":"","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":"111 1","pages":"155 - 155"},"PeriodicalIF":1.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46010897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
BS in Biology; University of Puerto Rico, Rı́o Piedras, PR MS in Biology; University of Puerto Rico, Rı́o Piedras, PR; Advisors: Patricia Burrowes and Rafael Joglar PhD in Ecology and Evolutionary Biology; Cornell University, Ithaca, NY; Advisor: Kelly Zamudio NSF Postdoctoral Fellow; University of Maryland, College Park, MD and Smithsonian Institution, Center for Conservation Genomics, Washington, DC; Advisors: Karen Lips and Robert Fleischer
{"title":"Dr. Ana V. Longo","authors":"Dr. Ana V. Longo","doi":"10.1643/t2023011","DOIUrl":"https://doi.org/10.1643/t2023011","url":null,"abstract":"BS in Biology; University of Puerto Rico, Rı́o Piedras, PR MS in Biology; University of Puerto Rico, Rı́o Piedras, PR; Advisors: Patricia Burrowes and Rafael Joglar PhD in Ecology and Evolutionary Biology; Cornell University, Ithaca, NY; Advisor: Kelly Zamudio NSF Postdoctoral Fellow; University of Maryland, College Park, MD and Smithsonian Institution, Center for Conservation Genomics, Washington, DC; Advisors: Karen Lips and Robert Fleischer","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":"111 1","pages":"151 - 152"},"PeriodicalIF":1.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46222838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.1007/978-981-16-7427-3
T. Pietsch
{"title":"Fish Diversity of Japan: Evolution, Zoogeography, and Conservation","authors":"T. Pietsch","doi":"10.1007/978-981-16-7427-3","DOIUrl":"https://doi.org/10.1007/978-981-16-7427-3","url":null,"abstract":"","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":"111 1","pages":"153 - 154"},"PeriodicalIF":1.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48527995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"SUMMARY OF THE MEETINGS","authors":"","doi":"10.1643/t2023013","DOIUrl":"https://doi.org/10.1643/t2023013","url":null,"abstract":"","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":"111 1","pages":"156 - 164"},"PeriodicalIF":1.5,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47463539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Geoffrey N. Hughes, Louise M. Streeting, A. Burns, P. Mcdonald
Researchers frequently encounter turtle nests after the nest has been raided, finding only eggshell fragments that are difficult to identify. Valuable information on the breeding biology and needs of different species might still be collected from these nests if remains could be confidently assigned to a particular species. However, this can be difficult if there are multiple turtle species nesting within an area at a given time, and gross-scale characteristics such as egg size and shape are no longer available due to damage. This study examined eggshell microstructure, by scanning electron microscopy (SEM), among multiple species of freshwater turtle eggshell fragments, with the aim of potentially developing a diagnostic tool for species identification. Eggshell fragments were collected from known sources of four species of turtle native to eastern Australia: Eastern Long-necked Turtle (Chelodina longicollis), Murray River Turtle (Emydura macquarii), Bell's Turtle (Myuchelys bellii), and Bellinger River Turtle (M. georgesi). Fragments were scanned and analyzed for microstructural and ultrastructural features, and measured for differences in feature size across species. Central plaque diameter emerged as a potential diagnostic feature for separating species, with longneck turtle eggshells having no visible plaques, Murray River Turtle eggshells having relatively small mean plaque size (19.8 µm ± 10.28 SD), while Bell's Turtle (43.5 µm ± 14.16 SD) and Bellinger River Turtle eggshells (41.9 µm ± 15.41 SD) had relatively large plaques with little overlap between genera. Other measured features (shell unit size, basal knob size, and shell unit density) significantly differed in means among species but overlapped in range, or showed a lack of statistical difference, likely preventing the technique being definitive with a single measure. Some of this variance may be due to inherent confounding factors, such as the replicability of fragment preparation, condition of eggshells, and stage of embryonic development at the time of collection. These results suggest that use of measurements of microstructural features has promise as a means for distinguishing the provenance of eggshell fragments, and further investigation is warranted to develop site-specific protocols for use as a diagnostic tool for turtle ootaxonomy.
研究人员经常在龟巢被突袭后遇到龟巢，只发现了难以识别的蛋壳碎片。如果遗骸能够被自信地分配给特定物种，那么关于不同物种的繁殖生物学和需求的有价值的信息仍然可以从这些巢穴中收集。然而，如果在给定的时间有多个海龟物种在一个区域内筑巢，并且由于破坏，卵的大小和形状等总规模特征不再可用，这可能会很困难。本研究通过扫描电子显微镜（SEM）检查了多种淡水龟蛋壳碎片的蛋壳微观结构，目的是开发一种潜在的物种鉴定诊断工具。蛋壳碎片是从四种原产于澳大利亚东部的海龟的已知来源收集的：东部长颈龟（Chelodina longicolis）、默里河龟（Emydura macquarii）、贝尔龟（Myuchelys bellii）和贝林格河龟（M.georgesi）。扫描和分析碎片的微观结构和超微结构特征，并测量不同物种特征大小的差异。中央斑块直径成为分离物种的潜在诊断特征，长颈龟蛋壳没有可见斑块，默里河龟蛋壳的平均斑块大小相对较小（19.8µm±10.28 SD），而Bell's Turtle（43.5µm±14.16 SD）和Bellinger River Turtle蛋壳（41.9µm±15.41 SD）的斑块相对较大，属间几乎没有重叠。其他测量特征（外壳单位大小、基本旋钮大小和外壳单位密度）在物种间的平均值上存在显著差异，但范围重叠，或显示出缺乏统计差异，这可能使该技术无法通过单一测量确定。其中一些差异可能是由于固有的混杂因素，如碎片制备的可复制性、蛋壳的状况和收集时胚胎发育的阶段。这些结果表明，使用微观结构特征的测量作为区分蛋壳碎片来源的一种手段是有希望的，有必要进行进一步的研究，以开发特定位点的方案，用作龟卵轴切开术的诊断工具。
{"title":"Towards a Diagnostic Tool for Turtle Ootaxonomy: Investigation of Microstructural Differences in the Eggshells of Australian Freshwater Turtles","authors":"Geoffrey N. Hughes, Louise M. Streeting, A. Burns, P. Mcdonald","doi":"10.1643/h2021125","DOIUrl":"https://doi.org/10.1643/h2021125","url":null,"abstract":"Researchers frequently encounter turtle nests after the nest has been raided, finding only eggshell fragments that are difficult to identify. Valuable information on the breeding biology and needs of different species might still be collected from these nests if remains could be confidently assigned to a particular species. However, this can be difficult if there are multiple turtle species nesting within an area at a given time, and gross-scale characteristics such as egg size and shape are no longer available due to damage. This study examined eggshell microstructure, by scanning electron microscopy (SEM), among multiple species of freshwater turtle eggshell fragments, with the aim of potentially developing a diagnostic tool for species identification. Eggshell fragments were collected from known sources of four species of turtle native to eastern Australia: Eastern Long-necked Turtle (Chelodina longicollis), Murray River Turtle (Emydura macquarii), Bell's Turtle (Myuchelys bellii), and Bellinger River Turtle (M. georgesi). Fragments were scanned and analyzed for microstructural and ultrastructural features, and measured for differences in feature size across species. Central plaque diameter emerged as a potential diagnostic feature for separating species, with longneck turtle eggshells having no visible plaques, Murray River Turtle eggshells having relatively small mean plaque size (19.8 µm ± 10.28 SD), while Bell's Turtle (43.5 µm ± 14.16 SD) and Bellinger River Turtle eggshells (41.9 µm ± 15.41 SD) had relatively large plaques with little overlap between genera. Other measured features (shell unit size, basal knob size, and shell unit density) significantly differed in means among species but overlapped in range, or showed a lack of statistical difference, likely preventing the technique being definitive with a single measure. Some of this variance may be due to inherent confounding factors, such as the replicability of fragment preparation, condition of eggshells, and stage of embryonic development at the time of collection. These results suggest that use of measurements of microstructural features has promise as a means for distinguishing the provenance of eggshell fragments, and further investigation is warranted to develop site-specific protocols for use as a diagnostic tool for turtle ootaxonomy.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":"111 1","pages":"138 - 148"},"PeriodicalIF":1.5,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49505440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vitellogenesis is the process in which female oviparous vertebrates synthesize the protein vitellogenin to develop egg yolk. In some species, vitellogenin has been used to investigate reproductive status, as a biomarker of clutch size and nesting frequency, and as a biomarker of exposure to endocrine-disruptive chemicals. The Diamond-backed Terrapin (Malaclemys terrapin) is an obligate coastal species that in the northern extent of its range nests in the spring and summer months. Diamond-backed Terrapins serve as a key indicator species of coastal ecosystem health; thus, furthering our understanding of the endocrine control of reproduction may inform biologists of the health and status of coastal ecosystems. The objective of this study was to quantify baseline values of vitellogenin and testosterone in Diamond-backed Terrapins during the nesting season, in the northern part of their range. Blood samples were taken from adult female terrapins from two populations in coastal New Jersey from June–August. Enzyme-linked immunosorbent assays (ELISAs) were used to quantify vitellogenin (VTG) and testosterone (T) across the nesting season. VTG concentrations showed peak values in the earliest part of the nesting season, significantly declining through the summer before reaching basal values in August, with T showing a similar trend. This suggests that terrapins in New Jersey follow a similar reproductive cycle to other turtle species from temperate latitudes. Additionally, we found that larger females exhibited higher concentration of T and VTG than smaller females. This suggests that VTG and T are useful biomarkers of reproductive output in these animals. Lastly, we also noted that larger females tended to nest earlier in the nesting season than smaller females. We hypothesize that larger females may compete for resources more effectively and efficiently than smaller females, which may confer larger individuals a fitness advantage.
{"title":"Plasma Vitellogenin and Testosterone in Diamond-backed Terrapins (Malaclemys terrapin) during the Nesting Season in Coastal New Jersey","authors":"Stephanie A. Wolfe, Jordan Donini, R. Valverde","doi":"10.1643/h2020122","DOIUrl":"https://doi.org/10.1643/h2020122","url":null,"abstract":"Vitellogenesis is the process in which female oviparous vertebrates synthesize the protein vitellogenin to develop egg yolk. In some species, vitellogenin has been used to investigate reproductive status, as a biomarker of clutch size and nesting frequency, and as a biomarker of exposure to endocrine-disruptive chemicals. The Diamond-backed Terrapin (Malaclemys terrapin) is an obligate coastal species that in the northern extent of its range nests in the spring and summer months. Diamond-backed Terrapins serve as a key indicator species of coastal ecosystem health; thus, furthering our understanding of the endocrine control of reproduction may inform biologists of the health and status of coastal ecosystems. The objective of this study was to quantify baseline values of vitellogenin and testosterone in Diamond-backed Terrapins during the nesting season, in the northern part of their range. Blood samples were taken from adult female terrapins from two populations in coastal New Jersey from June–August. Enzyme-linked immunosorbent assays (ELISAs) were used to quantify vitellogenin (VTG) and testosterone (T) across the nesting season. VTG concentrations showed peak values in the earliest part of the nesting season, significantly declining through the summer before reaching basal values in August, with T showing a similar trend. This suggests that terrapins in New Jersey follow a similar reproductive cycle to other turtle species from temperate latitudes. Additionally, we found that larger females exhibited higher concentration of T and VTG than smaller females. This suggests that VTG and T are useful biomarkers of reproductive output in these animals. Lastly, we also noted that larger females tended to nest earlier in the nesting season than smaller females. We hypothesize that larger females may compete for resources more effectively and efficiently than smaller females, which may confer larger individuals a fitness advantage.","PeriodicalId":29892,"journal":{"name":"Ichthyology and Herpetology","volume":"111 1","pages":"119 - 127"},"PeriodicalIF":1.5,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44307653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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