Aquatic Mammals最新文献

{"title":"Hematology and Blood Chemistry Reference Intervals for Antillean Manatees (Trichechus manatus manatus) in Colombia","authors":"Lesly J. Cabrias-Contreras, Dalila Caicedo-Herrera, Ruby A. Montoya-Ospina, Sandra Millán-Tripp, Yenyfer Moná-Sanabria, Isabel V. Gómez-Camelo, Laura Jaramillo-Ortíz, Ana M. Aguirre-González, Bert Rivera-Marchand, Antonio A. Mignucci-Giannoni","doi":"10.1578/am.49.5.2023.443","DOIUrl":"https://doi.org/10.1578/am.49.5.2023.443","url":null,"abstract":"Hematology and blood chemistry tests constitute an easy-to-apply veterinary tool that evaluates an organism’s systemic functioning and disease process by comparing the level of specific analytes against species norms. Such analyses help monitor marine mammals’ health and nutritional status. Although reference values have been published for a few manatee populations, there are none for Antillean manatees (Trichechus manatus manatus) in Colombia. We aim to establish the reference values for hematology and serum chemistries for these manatees and determine if there are variations between individuals of different age groups and sex. Thus, we obtained whole blood and serum samples from 45 rehabilitated manatees from Colombia between 1992 and 2021. Complete Blood Count and Comprehensive Metabolic Panel values were calculated, and differences between age groups and sex were determined. Results were compared with published reference intervals of other Antillean manatee populations, Florida manatees (Trichechus manatus latirostris), and Amazonian manatees (Trichechus inunguis) from Brazil. We determined the reference intervals of hematology and serum chemistry for manatees in Colombia for different age and sex categories. No relevant clinical variations were found in hematological parameters due to sex. Marked differences were found between age groups, mainly among young animals with an expected faster metabolism. There were significant variations between hematological and blood chemistry values when the Colombian manatees were compared to manatees from Puerto Rico and Amazonian manatees from Brazil. Such variations are likely influenced by evolutionary history and environmental factors associated with differences in habitat salinity and diet. We recommend that future studies correlate these blood tests with specific panels. We further recommend conducting wild manatee health assessments as this information will yield essential data for species management schemes needed due to the multiple anthropogenic and environmental threats that manatees face today which put the Colombian manatee’s health and ultimate survival at risk.","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135353428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sea Otters (Enhydra lutris) Found in the Stomach of a Stranded Killer Whale (Orcinus orca) in the Commander Islands, Western North Pacific","authors":"Sergey V. Fomin, Ivan D. Fedutin, Ekaterina A. Borisova, Ilya G. Meschersky, Olga A. Filatova","doi":"10.1578/am.49.5.2023.462","DOIUrl":"https://doi.org/10.1578/am.49.5.2023.462","url":null,"abstract":"","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135353425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"South American Fur Seals (Arctocephalus australis) Out of Range in Northern Peru","authors":"Fernando Vilchez-Delgado, Susana Cárdenas-Alayza, Selene Diaz, Sandra Márquez-Alvis, Fátima Gúzman, Alejandro Pereda-Sanchez, Evelin García-Collave, Shaleyla Kelez, Yuri Hooker, Carlos Calvo-Mac","doi":"10.1578/am.49.5.2023.468","DOIUrl":"https://doi.org/10.1578/am.49.5.2023.468","url":null,"abstract":"","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135353430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Book Review: We Are All Whalers: The Plight of Whales and Our Responsibility","authors":"MaryEllen Mateleska","doi":"10.1578/am.49.4.2023.406","DOIUrl":"https://doi.org/10.1578/am.49.4.2023.406","url":null,"abstract":"","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49417496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Young Eden’s Whale (Balaenoptera edeni edeni) Wandering in a Busy International Container Port","authors":"Jing Sun, Fangting Lu, Baolin Liao, Baohua Xiao, Min Li, Linyun He, Ling Bai, Bingyao Chen","doi":"10.1578/am.49.4.2023.321","DOIUrl":"https://doi.org/10.1578/am.49.4.2023.321","url":null,"abstract":"Eden’s whale (Balaenoptera edeni edeni) is one of the least-understood baleen whales, with a global distribution that is almost completely unknown; only a few basic population studies of this species have been reported thus far. On 29 June 2021, a single Eden’s whale was sighted in Dapeng Bay, Shenzhen, a busy international container port. This sighting was the first record of a live Eden’s whale in the area, and it attracted immediate widespread attention. Our research team monitored the whale, nicknamed “Xiaobu” by Shenzhen citizens, until its disappearance. There were 48 sightings of the whale over a period of 50 days during vessel-based surveys from 2 July to 29 August 2021. Xiaobu was mainly sighted in coastal areas with a depth of 8.70 to 16.30 m; it remained 1 km offshore. The whale moved in a small minimum convex polygon range of 44.67 km2 and kernel density estimation range of 87.96 km2. From 2 to 27 July 2021, the whale was sighted near the Liquefied Natural Gas Pier in the eastern part of Dapeng Bay; it moved toward the Yantian International Container Terminal in the western part of Dapeng Bay between 28 July and 25 August, after which it was not sighted again. Its shift from east to west may have been influenced by food distribution and/or a gradual increase in familiarity with the local environment. Aerial vertical photogrammetry estimated a short body length of 7.49 m, indicating a young whale. Based on stranding records from the Chinese coastal area, the Eden’s whale population in Beibu Gulf presumably migrates northward to the East China Sea (approximately 2,000 km northeast) in April, and then returns in December. Xiaobu may have become separated from the Eden’s whale group when whales reached Shenzhen during the northward migration.","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42894827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Auditory Health of Bowhead Whales (Balaena mysticetus) of the Bering-Chukchi-Beaufort Stock Based on Inner Ear Neuron Counts","authors":"David A. Waugh, J. D. Sensor, J. George, J. Thewissen","doi":"10.1578/am.49.4.2023.329","DOIUrl":"https://doi.org/10.1578/am.49.4.2023.329","url":null,"abstract":"","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41873420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Letter to the Editor: EAAM Symposium: Marine Mammals in Need: Let People Know that We Are Part of the Solution","authors":"M. Böye","doi":"10.1578/am.49.4.2023.407","DOIUrl":"https://doi.org/10.1578/am.49.4.2023.407","url":null,"abstract":"","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":"51 24","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41258013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distribution and Abundance of California (Zalophus californianus) and Steller (Eumetopias jubatus) Sea Lions in the Inshore Waters of Washington, 2013-2016","authors":"T. Jefferson, M. Smultea, E. Ward","doi":"10.1578/am.49.4.2023.366","DOIUrl":"https://doi.org/10.1578/am.49.4.2023.366","url":null,"abstract":"Two species of sea lions occur in the in387land waters of Washington State: the California sea lion (Zalophus californianus) and the Steller sea lion (Eumetopias jubatus). Both species breed elsewhere, but they typically move into Puget Sound and adjacent waters of the Salish Sea from autumn through spring. There is a need for information on their current abundance and seasonal use patterns as both species prey heavily on threatened/endangered stocks of salmon and steelhead trout (Oncorhynchus spp.), and empirical abundance estimates of these species are lacking for inland Washington waters. From 2013 to 2016, we conducted 39,399 km of aerial surveys for marine mammals in this area, sighting 255 groups of sea lions. We used a subset of 7,841 km of effort and 165 sea lion sightings made during surveys in good sighting conditions to estimate in-water abundance using line-transect methods. Historical tagging data collected in Pacific Northwest waters were used to evaluate the proportions of time that each species spent on land and conducting dives, and then to develop correction factors to derive total abundance for both sea lion species, providing the first empirical abundance estimates for these waters. We estimated that between 33 and 442 California sea lions were found in Puget Sound/Hood Canal in different seasons, with nearly 3,000 being found in the broader inland Washington waters in the peak season (spring). Steller sea lions occurred in much smaller numbers, with a peak of 219 animals in Puget Sound/Hood Canal/Strait of Juan de Fuca in autumn (and possibly as many as 600 to 700 in the entire study area). While some estimates suffer from low precision, this study demonstrates that substantial numbers of sea lions use waters of the study area throughout much of the year. Our results provide an important step toward a better understanding of these two species in the inland waters of Washington, as well as their potential effects on protected salmonid prey species.","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46394755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First Humpback Whale Movement Between Ecuador and the South Sandwich Islands: Redefines the Easternmost Migration Point of Breeding Stock G","authors":"Cristina Castro, M. Engel, Anthony R. Martin","doi":"10.1578/am.49.4.2023.382","DOIUrl":"https://doi.org/10.1578/am.49.4.2023.382","url":null,"abstract":"The humpback whales ( Megaptera novaean-gliae ) of the Southern Hemisphere migrate long distances from their feeding grounds in Antarctic waters to the tropics (Matthews, 1937). At the end of the feeding season, each population (i.e., stock) migrates latitudinally towards the Equator to its own coastal or insular breeding ground in tropical or near-tropical waters. Seven humpback whale breeding stocks (A to G) and six management feeding areas (Areas I to VI) are recognized by the International Whaling Commission (IWC) (1998). Two breeding populations migrate along South America: Breeding Stock A is found in the coastal waters of Brazil, and Breeding Stock G is found on the west coast of South America from northern Peru to south Nicaragua (Pacheco et al., 2009; IWC, 2011; De Weerdt et al., 2020). These populations feed in two Antarctic management areas. Feeding Area I goes from 120° to 60° W (IWC, 2005). South Georgia ( ∼ 54° S, 36° W) and the South Sandwich Islands ( ∼ 58° S, 26° W) in the Scotia Sea, South Atlantic (Feeding Area II), are known feeding grounds for Breeding Stock A (Stevick et al., 2006; Zerbini et al., 2006, 2020; Engel et al., 2008; Engel & Martin, 2009; Marcondes et al., 2021), whereas the western Antarctic Peninsula (Feeding Area I)","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42621167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of Antimicrobial Resistance in Faecal Microbes from Wild Dugongs (Dugong dugon)","authors":"A. M. McGowan, J. Seddon, J. Lanyon, Nicholas Clark, J. Gibson","doi":"10.1578/am.49.4.2023.395","DOIUrl":"https://doi.org/10.1578/am.49.4.2023.395","url":null,"abstract":"Estuarine and coastal waters are areas of potential concern for antimicrobial resistance because of the discharge of wastewater from sewage treatment plants and the run-off from urban and agricultural lands. Herein, we evaluate the antimicrobial resistance profiles in bacteria from dugongs (Dugong dugon), mammals that inhabit and feed in shallow coastal regions and, thus, are vulnerable to encountering water and sediment contaminated by human activities. Bacterial isolates were cultured from fresh faeces of four wild dugongs, as well as from one sediment sample from a dugong foraging ground in Queensland, Australia. Ten bacterial isolates underwent phenotypic antimicrobial susceptibility testing using disc diffusion and minimum inhibitory concentration testing, and genotypic resistance and virulence gene identification through whole genome sequencing. Four Staphylococcus warneri isolates and one Bacillus cereus isolate from dugong faeces were resistant to penicillin, with two S. warneri isolates also displaying resistance to trimethoprim. Four Escherichia coli isolates were all resistant to ampicillin. Resistance genes, including fosB, BcII, dfrC, blaZ, and mdfA, were identified in the isolates cultured from dugong faeces with two virulence genes (gad and lpfA) identified in all E. coli isolates. Lysinibacillus sphaericus cultured from the marine sediment and B. cereus from dugong faeces displayed phenotypic multidrug resistance (across categories of non-extended spectrum cephalosporins, penicillins and beta-lactamase inhibitors, and clindamycin; and for L. sphaericus, phosphonic acids). These results demonstrate the role that dugongs can play as a sentinel species for antimicrobial resistance in the coastal waters across their range, which includes both disturbed urban and rural regions.","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49037591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}