Diseases of aquatic organisms最新文献_第2页

Characterization of Piscinoodinium sp. associated with epizootics and mortality in non-native and endemic freshwater fish of the Andaman Islands, India. 与印度安达曼群岛非本地淡水鱼和本地淡水鱼流行病和死亡有关的 Piscinoodinium sp.

IF 1.1 4区农林科学

Diseases of aquatic organisms Pub Date : 2024-11-14 DOI: 10.3354/dao03821

J Praveenraj, A Uma, K Saravanan, B Ahilan, A Gopalakannan, D Manikandavelu, R Kiruba-Sankar, G Kumar

引用次数: 0

Population biology of crab Hapalogaster dentata parasitized by rhizocephalan Briarosaccus hoegi in the northwestern Sea of Japan. 日本海西北部被根瘤藻类 Briarosaccus hoegi 寄生的 Hapalogaster dentata 蟹的种群生物学。

IF 1.1 4区农林科学

Diseases of aquatic organisms Pub Date : 2024-11-14 DOI: 10.3354/dao03825

Olga M Korn, Darya D Golubinskaya, Nikolai I Selin, Alexander V Kalachev

{"title":"Population biology of crab Hapalogaster dentata parasitized by rhizocephalan Briarosaccus hoegi in the northwestern Sea of Japan.","authors":"Olga M Korn, Darya D Golubinskaya, Nikolai I Selin, Alexander V Kalachev","doi":"10.3354/dao03825","DOIUrl":"https://doi.org/10.3354/dao03825","url":null,"abstract":"We studied the population and reproductive characteristics of the stone crab Hapalogaster dentata (De Haan, 1849) (Anomura: Lithodidae) parasitized by Briarosaccus hoegi (Rhizocephala: Peltogastridae) from Peter the Great Bay (northwestern Sea of Japan) in 2023. The sex structure of the H. dentata population was female-biased and represented by 39.1% males and 60.9% females. The size-frequency distribution differed between males and females. The prevalence of parasitization of H. dentata by B. hoegi reached 6.7%. No relationship between crab sex and parasitization prevalence was found. Most of the parasitized specimens (94.8%) had only a single parasitic externa. The non-parasitized and parasitized crabs did not differ in main carapace length. The pleopods in most of the externa-bearing females were shortened or completely atrophied. H. dentata produced 1 clutch per year with ovigerous females occurring from October to May. An obvious delay in embryonic development was observed in winter. None of the parasitized H. dentata females were ovigerous. Externae with embryos of B. hoegi were found from May to July.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"160 ","pages":"35-46"},"PeriodicalIF":1.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142616601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effect of trematode infection on cardiac activity of marine gastropod Littorina littorea in situ and under laboratory conditions. 在原地和实验室条件下，吸虫感染对海洋腹足类 Littorina littorea 心脏活动的影响。

IF 1.1 4区农林科学

Diseases of aquatic organisms Pub Date : 2024-10-10 DOI: 10.3354/dao03819

Igor Bakhmet, Kirill E Nikolaev, Alexei O Smurov, Ivan Levakin, Dmitry Ekimov

引用次数: 0

PirA- or PirB-binding nanobodies can protect whiteleg shrimp from the acute hepatopancreatic necrosis disease toxin. 与 PirA 或 PirB 结合的纳米抗体可保护南美白对虾免受急性肝胰腺坏死病毒素的侵害。

IF 1.1 4区农林科学

Diseases of aquatic organisms Pub Date : 2024-10-10 DOI: 10.3354/dao03817

Sylvia Cheung, Slade A Loutet, Sarah Zaytsoff, Filip Van Petegem, Loc H Tran, Hamlet Abnousi

引用次数: 0

Inactivation in vitro of the marine parasite Amyloodinium ocellatum. 体外灭活海洋寄生虫 Amyloodinium ocellatum。

IF 1.1 4区农林科学

Diseases of aquatic organisms Pub Date : 2024-09-26 DOI: 10.3354/dao03814

Rui Sousa, Vincent Laizé, Cátia Lourenço-Marques, Marisa Barata, Pedro Pousão-Ferreira, Florbela Soares

引用次数: 0

Retrospective comparison of thyroid hormones in Steller sea lions Eumetopias jubatus under professional care with and without thyroid disease. 在专业护理下，有甲状腺疾病和没有甲状腺疾病的斯特勒海狮（Eumetopias jubatus）甲状腺激素的回顾性比较。

IF 1.1 4区农林科学

Diseases of aquatic organisms Pub Date : 2024-09-26 DOI: 10.3354/dao03816

Amber M Lum, Tatiana C Weisbrod, Sarah I Jacob, Ramiro Isaza, Caroline E C Goertz, Allison D Tuttle, Treasa C Deegan, Ruth Francis-Floyd, Nicole I Stacy

{"title":"Retrospective comparison of thyroid hormones in Steller sea lions Eumetopias jubatus under professional care with and without thyroid disease.","authors":"Amber M Lum, Tatiana C Weisbrod, Sarah I Jacob, Ramiro Isaza, Caroline E C Goertz, Allison D Tuttle, Treasa C Deegan, Ruth Francis-Floyd, Nicole I Stacy","doi":"10.3354/dao03816","DOIUrl":"https://doi.org/10.3354/dao03816","url":null,"abstract":"An evaluation of morbidity and mortality in Steller sea lions (SSLs) Eumetopias jubatus under professional care identified a high prevalence of thyroid disease in aged animals. While studies have investigated the effects of age, season, nutrition, stressors, and pollutants on thyroid hormones in pinnipeds, data from individuals with known thyroid disease are lacking. Histopathological reports of adult SSLs in North American aquariums from 1979 to 2022 with banked serum (n = 14) were reviewed. Radioimmunoassays, which have been validated in this species, were used to determine triiodothyronine (TT3), total thyroxine (TT4), and free thyroxine (fT4). A solid-phase chemiluminescent immunometric assay for thyroid-stimulating hormone (TSH) quantification was validated by testing inter- and intra-assay repeatability, recovery, and parallelism. Lesions included follicular cysts (n = 5), adenoma with thyroglossal duct or follicular cysts (n = 2), medullary or follicular C-cell carcinoma with follicular cysts and nodular hyperplasia (n = 1), neuroendocrine carcinoma with follicular cysts (n = 1), and sarcomatoid carcinoma metastasis to the thyroid (n = 1). Significantly lower concentrations of TT3, TT4, and fT4 in SSLs with thyroid disease (n = 10) versus those without (n = 4) were attributed to space-occupying lesions, advanced age, and/or season. TSH was not significantly different between groups. Fifty percent of diseased SSL profiles were within reference ranges, and all individuals with lesions were clinically euthyroid. These data expand the current understanding of thyroid disease in SSLs and underscore the need for additional diagnostics (e.g. cervical ultrasound) concurrently with hormone assays to effectively screen for underlying abnormalities.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"159 ","pages":"199-208"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142343493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Synovial fluid analysis in healthy green turtles Chelonia mydas in Taiwan. 台湾健康绿海龟的滑膜液分析。

IF 1.1 4区农林科学

Diseases of aquatic organisms Pub Date : 2024-09-26 DOI: 10.3354/dao03813

Hsiang-Pei Su, Chau-Hwa Chi, Tsung-Hsien Li, I-Jiunn Cheng, Pin-Huan Yu

{"title":"Synovial fluid analysis in healthy green turtles Chelonia mydas in Taiwan.","authors":"Hsiang-Pei Su, Chau-Hwa Chi, Tsung-Hsien Li, I-Jiunn Cheng, Pin-Huan Yu","doi":"10.3354/dao03813","DOIUrl":"https://doi.org/10.3354/dao03813","url":null,"abstract":"Septic arthritis is a frustrating disease in sea turtle rehabilitation because of its unclear pathogenesis, delayed onset during rehabilitation, long-term treatment requirements, and potentially poor prognosis. Radiography, blood cultures, and arthrocentesis have been used as diagnostic tools for suspected cases. However, there is currently a lack of data on the characteristics of synovial fluid in healthy sea turtles. To establish reference data for synovial fluid in sea turtles, we enrolled 14 green turtles Chelonia mydas rescued between 2019 and 2022 from 3 facilities using the following inclusion criteria: normal attitude and appetite, normal motor functions of the 4 limbs, no joint swelling, and no ongoing use of antibiotics for at least 1 mo. Bacterial cultures of blood and synovial fluid from the shoulder joints of these turtles were obtained and a qualitative analysis of the synovial fluid was performed. The results revealed bacterial culture-negative blood and synovial fluids at 37°C. Most characteristics of normal synovial fluid in green turtles, such as being transparent, colorless, and able to create a strand of over 2.5 cm by being pulled with a needle in viscosity trials, as well as the cytology of the normal synovial fluids being dominated by histiocytes and synovial lining cells, lymphocytes, and occasionally a few heterophils or erythrocytes were similar to those in mammals. This study provides information on the normal synovial fluid characteristics of green turtles in Taiwan, which may be beneficial for the diagnosis of joint diseases in sea turtles.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"159 ","pages":"171-182"},"PeriodicalIF":1.1,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142343494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 detection of Marteilia pararefringens in Mytilus trossulus. 首次在贻贝中检测到 Pararefringens。

IF 1.1 4区农林科学

Diseases of aquatic organisms Pub Date : 2024-09-26 DOI: 10.3354/dao03818

Mats Bøgwald, Sigmund B Larsson, Stein Mortensen

引用次数: 0

Relationship between nutritional condition and causes of death in beluga whales Delphinapterus leucas from the St. Lawrence estuary, Quebec, Canada 加拿大魁北克圣劳伦斯河口白鲸的营养状况与死亡原因之间的关系

IF 1.4 4区农林科学

Diseases of aquatic organisms Pub Date : 2024-09-12 DOI: 10.3354/dao03812

Sylvain Larrat, Véronique Lesage, Robert Michaud, Stéphane Lair

{"title":"Relationship between nutritional condition and causes of death in beluga whales Delphinapterus leucas from the St. Lawrence estuary, Quebec, Canada","authors":"Sylvain Larrat, Véronique Lesage, Robert Michaud, Stéphane Lair","doi":"10.3354/dao03812","DOIUrl":"https://doi.org/10.3354/dao03812","url":null,"abstract":"ABSTRACT: Carcasses of endangered beluga whales Delphinapterus leucas from the St. Lawrence Estuary, Canada, have been examined consistently since 1983 to determine causes of death. The objective of this study is to compare the nutritional condition of belugas that died of different causes. Previously published categories of death were refined to discriminate acute from chronic pathological processes. Bayesian linear models were used to predict cause of death from the scaled mass index (SMI). Causes of death were as follows: ‘bacterial diseases’, ‘verminous pneumonia’, ‘toxoplasmosis’, ‘other parasitic diseases’, ‘other infectious diseases’, ‘trauma—entrapment’, ‘other noninfectious diseases’, ‘dystocia—postpartum complications’, ‘neonatal mortality’, ‘cancer’, ‘primary starvation’ and ‘undetermined’. The models predicted a lower nutritional condition for the ‘neonatal mortality’ in belugas <290 cm in length and for ‘primary starvation’ and ‘verminous pneumonia’ categories for belugas ≥290 cm. Belugas that died from ‘dystocia—postpartum complications’ or from ‘undetermined causes’ had a higher-than-average SMI. Animals in the ‘trauma—entrapment’ category did not exhibit the highest nutritional condition, which was unexpected since individuals that died from trauma or entrapment are often used as references for optimal nutritional condition in other cetacean populations. Females that died from dystocia and postpartum complications were in similar nutritional condition as females dead from other causes during, or shortly after, pregnancy. This suggests that these females are not obese, ruling out a possible cause of dystocia. Although studying dead animals biases results toward low nutritional condition, our findings support the link between chronic pathological processes and poorer nutritional condition in belugas.","PeriodicalId":11252,"journal":{"name":"Diseases of aquatic organisms","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Nectonema horsehair worms (Nematomorpha) parasitic in the Tanner crab Chionoecetes bairdi, with a note on the relationship between host and parasite phylogeny 寄生于丹纳蟹 Chionoecetes bairdi 的马鬃线虫（Nematomorpha），以及关于宿主与寄生虫系统发育关系的说明

IF 1.4 4区农林科学

Diseases of aquatic organisms Pub Date : 2024-09-12 DOI: 10.3354/dao03815

Keiichi Kakui

引用次数: 0