Journal of fish biology最新文献_第2页

Spatial variation in otolith elemental chemistry of Stegastes arcifrons (Pomacentridae) reflects environmental patchiness at the Galápagos archipelago. Galápagos群岛石蜡石质元素化学的空间变化反映了环境斑块性。

IF 1.7 3区农林科学

Journal of fish biology Pub Date : 2025-06-18 DOI: 10.1111/jfb.70120

Juan Manuel Alava-Jurado, Margarita Brandt, Michael J Kingsford

{"title":"Spatial variation in otolith elemental chemistry of Stegastes arcifrons (Pomacentridae) reflects environmental patchiness at the Galápagos archipelago.","authors":"Juan Manuel Alava-Jurado, Margarita Brandt, Michael J Kingsford","doi":"10.1111/jfb.70120","DOIUrl":"https://doi.org/10.1111/jfb.70120","url":null,"abstract":"In marine ecosystems, environmental conditions shape important ecological processes. The equatorial Galápagos Marine Reserve (GMR) is known for great spatial variation in the upwelling of cold nutrient-rich waters and the input of warm Panamanian waters. Differences in oceanography influence the structure of benthic communities. There is, however, a paucity of knowledge on the spatial scales of exposure to cool and warmer waters. Here we analysed the elemental chemistry of otoliths in the territorial yellow-tail damselfish (Stegastes arcifrons) to identify patterns of elemental signals across a gradient from warm to upwelled waters. Contrasting patterns of elemental ratios (Ba/Ca, Mg/Ca, Mn/Ca and Sr/Ca) were found in whole otoliths of adult fish at spatial scales of kilometres to 10 s of kilometres; there was also high variation among fish within some sites. A positive correlation was detected between temperature and Sr/Ca ratios. We conclude that variation in environmental conditions influenced fish elemental incorporation into otoliths, highlighting the oceanographic heterogeneity of shallow rocky reef environments in the Galápagos.","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325940","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

Prolonged use of freshwater habitats by the European sea bass revealed by otolith chemical analysis. 耳石化学分析揭示了欧洲海鲈鱼对淡水栖息地的长期利用。

IF 1.7 3区农林科学

Journal of fish biology Pub Date : 2025-06-18 DOI: 10.1111/jfb.70069

Carlos Antunes, Catarina M Antunes, Mafalda Fernandes, Ester Dias

{"title":"Prolonged use of freshwater habitats by the European sea bass revealed by otolith chemical analysis.","authors":"Carlos Antunes, Catarina M Antunes, Mafalda Fernandes, Ester Dias","doi":"10.1111/jfb.70069","DOIUrl":"https://doi.org/10.1111/jfb.70069","url":null,"abstract":"The European sea bass, Dicentrarchus labrax (Linnaeus, 1758), is a highly valuable marine resource for both commercial and sport fishing. Estuaries are well-recognized as critical feeding areas, particularly for juveniles, throughout the species' distribution range. Empirical observations suggest that sea bass can also use freshwater habitats, although the time spent in these habitats remains unclear. This study aimed to investigate the seasonal occurrence of sea bass in a freshwater habitat within the Minho River, and to estimate the duration of their stay in these habitats. To characterize the freshwater contingent (e.g. age structure, sex ratio), sea bass collected with fyke nets between 2008 and 2023 from a fixed station in a freshwater habitat were analysed. A random subsample of 30 fish was selected for otolith chemical analysis to reconstruct habitat use throughout their lives and estimate time spent in freshwater habitats. An increase in the number of catches was observed from 2016 onwards, with sea bass numbers peaking during autumn and spring. The youngest and smallest individuals were collected during autumn and early winter, whereas the oldest and largest individuals were found more frequently during late spring and summer. The most common age was 4 years old, and 63% of the individuals collected were undifferentiated. Otolith chemical analysis revealed that nearly 50% of the individuals began their lives in brackish environments, suggesting that coastal habitats may also serve as spawning grounds. This finding raises the hypothesis that this population may also exhibit partial migratory behaviour. The continuous use of freshwater habitats for more than a year was documented, which should be considered in fisheries management.","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325939","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

A blacktip's black tip: The reliability of using dorsal-fin patterns for photo identification of blacktip reef sharks (Carcharhinus melanopterus). 黑鳍的黑尖：使用背鳍图案照片识别黑鳍礁鲨（Carcharhinus melanopterus）的可靠性

IF 1.7 3区农林科学

Journal of fish biology Pub Date : 2025-06-18 DOI: 10.1111/jfb.70114

Laetitia A M G Lionnet, Shamil F Debaere, Hugo Heuls, Johann Mourier, Serge Planes, Jodie L Rummer

{"title":"A blacktip's black tip: The reliability of using dorsal-fin patterns for photo identification of blacktip reef sharks (Carcharhinus melanopterus).","authors":"Laetitia A M G Lionnet, Shamil F Debaere, Hugo Heuls, Johann Mourier, Serge Planes, Jodie L Rummer","doi":"10.1111/jfb.70114","DOIUrl":"https://doi.org/10.1111/jfb.70114","url":null,"abstract":"Photo identification (photo ID) has increasingly become a valuable technique serving not only to identify individual animals but also to monitor populations, track migration patterns and assess wildlife health, among others uses. Various species of sharks are amenable to photo ID, among which the blacktip reef shark (Carcharhinus melanopterus) is a particularly suitable subject. Their distinctive pigmentation and dorsal-fin patterns serve as potential key identifying features. This study focuses on the variation in dorsal-fin patterns among individual neonatal and juvenile C. melanopterus around Moorea, French Polynesia. We employed a Gower distance matrix to assess dissimilarities in dorsal-fin patterns and conducted an elliptical Fourier analysis (EFA) to characterize shape variations. The results from the EFA were further summarized using principal component analyses. Additionally, we explored the potential symmetry between the left and right sides of the dorsal fin. To assess the long-term reliability of using pigmentation patterns for photo ID, dorsal-fin patterns of recaptured individuals were compared using regressions of log-transformed dorsal-fin measurements over log-transformed pre-caudal lengths. Recaptures occurred over varying time frames, ranging from as short as 2 weeks to as long as 9 months. The diverse range allowed us to evaluate the temporal stability of dorsal-fin patterns across different intervals. The analyses revealed that each individual shark's dorsal-fin pattern is unique, but the left and right sides are asymmetrical. Regarding the analysis of recaptured individuals, the ontogenetic changes in dorsal-fin size were not significant enough to alter the dorsal-fin patterns, thus ensuring their temporal stability. The application of photo ID techniques, as demonstrated in this study, underscores its indispensable role in conservation strategies, promoting a deeper understanding of elasmobranch species.","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325935","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 case of parthenogenesis in an intersexual zebra shark (Stegostoma tigrinum) having incomplete claspers. 双性斑马鲨（Stegostoma tigrinum）单性生殖的第一例。

IF 1.7 3区农林科学

Journal of fish biology Pub Date : 2025-06-18 DOI: 10.1111/jfb.70122

Kazuyuki Momota, Itsuki Kiyatake, Takeshi Izawa, Hiroki Aihara, Shigehiro Kuraku, Kiyonori Nishida

{"title":"First case of parthenogenesis in an intersexual zebra shark (Stegostoma tigrinum) having incomplete claspers.","authors":"Kazuyuki Momota, Itsuki Kiyatake, Takeshi Izawa, Hiroki Aihara, Shigehiro Kuraku, Kiyonori Nishida","doi":"10.1111/jfb.70122","DOIUrl":"https://doi.org/10.1111/jfb.70122","url":null,"abstract":"Parthenogenesis, where reproduction occurs without fertilization by a male, and intersexuality, where an individual exhibits both male and female characteristics, have occasionally been observed in elasmobranchs. Although parthenogenesis has been previously documented in zebra sharks (Stegostoma tigrinum), no individual with intersexuality has been reported. The female S. tigrinum [2060 mm total length (TL)], with incomplete claspers, laid 30 eggs in 2018 at the Osaka Aquarium NIFREL after 2 years and 5 months of monosex rearing. Embryonic development was confirmed in eight of these eggs, resulting in the successful hatching of one individual (253.8 mm TL). Its claspers exhibited incomplete external and internal structures, and its ovary contained scattered sperm duct-like structures without any evidence of spermatogenesis. Consequently, the present specimen was classified as having basic intersexuality. Furthermore, an analysis of 14 microsatellite loci in the hatching juvenile revealed complete maternal homozygosity across all loci, indicating parthenogenesis. This is the first report of parthenogenesis in an intersex individual. Our results play an important role in enhancing our understanding of the diversity of shark reproduction.","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144325938","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

Re-describing and ascertaining to homeland Hypostomus vaillanti (Steindachner, 1877) (Siluriformes: Loricariidae), a golden and black pleco from Northeast Brazil. 巴西东北部一种金黑相间的斑蝽，原产于巴西斯坦达纳（Steindachner, 1877）。

IF 1.7 3区农林科学

Journal of fish biology Pub Date : 2025-06-18 DOI: 10.1111/jfb.70097

Cláudio Henrique Zawadzki, Iago de Souza Penido, Silvia Yasmin Lustosa-Costa, Telton Pedro Anselmo Ramos

{"title":"Re-describing and ascertaining to homeland Hypostomus vaillanti (Steindachner, 1877) (Siluriformes: Loricariidae), a golden and black pleco from Northeast Brazil.","authors":"Cláudio Henrique Zawadzki, Iago de Souza Penido, Silvia Yasmin Lustosa-Costa, Telton Pedro Anselmo Ramos","doi":"10.1111/jfb.70097","DOIUrl":"https://doi.org/10.1111/jfb.70097","url":null,"abstract":"Approximately 26 species of Hypostomus occur in the five freshwater ecoregions in Northeast Brazil. One of these ecoregions is the Parnaíba, which drains almost the entire state of Piauí, and part of the states of Maranhão and Ceará. Among the species of Hypostomus registered in this ecoregion, there is Hypostomus vaillanti. The type locality of H. vaillanti was assigned to the Rio Preto, a tributary of the median portion of the Rio São Francisco basin at the municipality of Villa de Santa Rita (currently Santa Rita de Cássia), Bahia State, Brazil. Despite these historical data, we only found H. vaillanti in the Rio Parnaíba basin. Some fish surveys were carried out in different times by the authors and by other skilled ichthyologists in the Rio Preto and other nearby rivers from the Rio São Francisco basin, and no specimen of H. vaillanti have been found. Additionally, although the original description of H. vaillanti was well written, searching its distinction from some congeners in the taxonomic literature is nowadays quite complicated. Therefore, this species is re-described, and a new diagnosis is provided based on the analysis of recently found specimens in addition to an analysis of the type material. A lectotype of the Plecostomus vaillanti is designated herein. The results suggest that the distribution of H. vaillanti is restricted to the Rio Parnaíba basin; furthermore, we provide a molecular phylogenetic analysis that highlights some relationships between H. vaillanti and closely related species.","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144317071","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

Whale shark Rhincodon typus foraging on small schooling fish in the northern Mexican Caribbean. 在墨西哥加勒比海北部，鲸鲨在捕食鱼群。

IF 1.7 3区农林科学

Journal of fish biology Pub Date : 2025-06-16 DOI: 10.1111/jfb.70117

Natalí Cárdenas-Palomo, Emanuel Mimila-Herrera, Iván Velázquez-Abunader

引用次数: 0

Do shortfin mako Isurus oxyrinchus hunt dolphins actively? 短鳍灰鲭鲨主动捕食海豚吗？

IF 1.7 3区农林科学

Journal of fish biology Pub Date : 2025-06-15 DOI: 10.1111/jfb.70113

Gonzalo Mucientes, Nair Vilas-Arrondo, David Villegas-Ríos

引用次数: 0

Drivers of the range expansion of the European catfish (Silurus glanis) within its native distribution. 欧洲鲶鱼（Silurus glanis）在其本地分布范围扩张的驱动因素。

IF 1.7 3区农林科学

Journal of fish biology Pub Date : 2025-06-12 DOI: 10.1111/jfb.70099

Jan Baer, Stephan Hüsgen, Matthias Fromherz, Juergen Geist, Alexander Brinker

引用次数: 0

Age determination, growth and otolith shape analysis of Lepidotrigla cavillone from Sardinian and Sicilian waters (Mediterranean Sea). 地中海撒丁岛和西西里岛海域鳞蝗年龄测定、生长及耳石形态分析。

IF 1.7 3区农林科学

Journal of fish biology Pub Date : 2025-06-12 DOI: 10.1111/jfb.70098

A Bellodi, E Asciutto, D Malara, F Longo, B Agus, C Bacchiani, M C Follesa, C Porcu, M C Mangano, P Battaglia

{"title":"Age determination, growth and otolith shape analysis of Lepidotrigla cavillone from Sardinian and Sicilian waters (Mediterranean Sea).","authors":"A Bellodi, E Asciutto, D Malara, F Longo, B Agus, C Bacchiani, M C Follesa, C Porcu, M C Mangano, P Battaglia","doi":"10.1111/jfb.70098","DOIUrl":"https://doi.org/10.1111/jfb.70098","url":null,"abstract":"The large-scaled gurnard Lepidotrigla cavillone (Lacepède, 1801) is heavily affected by trawl fisheries targeting more economically valuable species. This species plays a key role in the food web and its potential collapse could negatively affect commercially exploited species. To date, few studies have attempted to provide needed life-history information for this species' stock status evaluation. With this in mind, we collected the otoliths of 470 specimens caught along the coasts of the two larger Mediterranean islands (271 specimens in Sardinia and 199 in Sicily). Age readings showed good reproducibility (index of average percent error = 11.4%, reading agreement 86.7%). For the first time, age-at-length data from this species were employed in a multi-model inference analysis. Von Bertalanffy's function outperformed the other examined models in terms of fitting the observed data. In both regions, there were no major differences in growth between sexes. The species exhibited a relatively rapid growth rate while having a short life span (3.5 years maximum recorded age in both locations). The obtained growth parameters for combined sexes were L∞ = 14.02 cm (TL), k = 0.45, t0 = -1.02 and L∞ = 11.76 cm (TL), k = 0.62, t0 = -1.43 in the Sardinian and Sicilian Seas, respectively. Shape analysis revealed that otolith morphology might distinguish between Sardinian and Sicilian populations, which warrants further investigation. The reconstructed otolith outlines differed significantly between the two sampled locations. These morphological discrepancies are most likely due to a mix of genetic and environmental factors.","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144275054","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

Structure and composition of yellowtail kingfish (Seriola lalandi) otoliths: implications for using aquaculture-reared fish to reconstruct life histories. 黄尾王鱼（serola lalandi）耳石的结构和组成：利用水产养殖鱼类重建生活史的意义。

IF 1.7 3区农林科学

Journal of fish biology Pub Date : 2025-06-12 DOI: 10.1111/jfb.70110

Belinda K Goddard, Laura M Otter, Julian M Hughes, Fabrice R A Jaine, Jasmin C Martino, Ulrike Troitzsch, Jackson Doherty, Hayden T Schilling

{"title":"Structure and composition of yellowtail kingfish (Seriola lalandi) otoliths: implications for using aquaculture-reared fish to reconstruct life histories.","authors":"Belinda K Goddard, Laura M Otter, Julian M Hughes, Fabrice R A Jaine, Jasmin C Martino, Ulrike Troitzsch, Jackson Doherty, Hayden T Schilling","doi":"10.1111/jfb.70110","DOIUrl":"https://doi.org/10.1111/jfb.70110","url":null,"abstract":"Understanding fish life history is essential for effective management of fisheries, but continuous tracking over lifetime temporal scales can be difficult. Fish otoliths contain a natural biogeochemical record of ambient environmental conditions and habitat use over such scales. However, ecological interpretations of these elemental compositions can be influenced by the structural composition of calcium carbonate otoliths, which can vary between wild and aquaculture fish as well as across species. As such, we used in situ confocal micro-Raman spectroscopy and powder X-ray diffraction to assess and quantify, respectively, the calcium carbonate polymorphs of the otoliths of aquaculture and wild yellowtail kingfish (Seriola lalandi) to validate whether the otoliths from aquaculture fish can be used to interpret patterns seen in the otoliths of wild fish. We then analysed major and minor trace elements using wavelength dispersive X-ray spectroscopy to investigate the potential habitat use of wild S. lalandi. The elemental composition of S. lalandi otoliths was examined across three cross-sectioned growth zones: the first (i.e. oldest) annulus (growth ring), the outermost (i.e. most recent) annulus and mid-way between these. All otoliths were shown to be composed of aragonite, with the exception of small proportions (0.5 wt%) of vaterite in a single wild S. lalandi otolith. This finding indicates that otoliths of aquaculture S. lalandi, reared in known conditions, are appropriate to interpret stable isotope analyses in wild S. lalandi. Wild-caught S. lalandi otoliths had concentrations of barium and manganese below detectable limits (<0.2 and <0.01 wt%, respectively) inferring that S. lalandi were not in estuarine or brackish environments when the analysed annuli were formed, suggesting these environments are not used for spawning.","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144275068","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