Marine Mammal Science最新文献

{"title":"Inhalant anesthesia for minimally invasive procedures in free-ranging Guadalupe fur seals (Arctocephalus philippii townsendi)","authors":"Lorraine Barbosa,&nbsp;Benny Borremans,&nbsp;Alissa C. Deming,&nbsp;Casandra Gálvez,&nbsp;Tenaya Norris,&nbsp;Sarah Pattison,&nbsp;Sophie Whoriskey,&nbsp;Fernando R. Elorriaga-Verplancken","doi":"10.1111/mms.13124","DOIUrl":"10.1111/mms.13124","url":null,"abstract":"<p>Free-ranging otariids are routinely captured for data and sample collection. To achieve this, anesthesia may be used to facilitate handling, decrease stress, and improve human and animal safety. Injectable anesthetics are widely used for such endeavors; however, certain disadvantages to this approach warrant further exploration of alternative anesthetic techniques. Inhalant anesthesia, commonly utilized for otariids in a clinical setting, is used more sparingly in the field, with few studies assessing safety and efficacy in free-ranging otariids. During 2016–2020, 175 Guadalupe fur seals were net-captured and anesthetized with isoflurane and oxygen on Guadalupe Island, Mexico, for satellite telemetry attachment and biological sampling. To contribute to the body of knowledge surrounding the use of inhalants in the field, physiologic and anesthetic parameters (time to induction, total oxygen use, heart rate, respiratory rate, time to recovery, and anesthetic depth) were assessed for effects of biometric and logistical factors (pursuit and holding time, sex, age class, body weight, year, oxygen flow rate, and total anesthesia time). This anesthetic technique provided rapid induction and recovery times and rare side effects in Guadalupe fur seals, serving as a practical means of field immobilization for minimally invasive procedures in this imperiled species.</p>","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.13124","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140571148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of common bottlenose dolphin whistles in tropical waters","authors":"Raul Rio,&nbsp;Daniel Romero-Mujalli,&nbsp;Sergio Cobarrubia-Russo,&nbsp;Hiram Rosales Nanduca,&nbsp;Flávio Medeiros Vieites,&nbsp;Thales Renato Ochotorena de Freitas,&nbsp;Lilian Sander Hoffmann","doi":"10.1111/mms.13122","DOIUrl":"10.1111/mms.13122","url":null,"abstract":"","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140197647","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":"G. Carleton Ray 1928–2023","authors":"Douglas Wartzok","doi":"10.1111/mms.13121","DOIUrl":"10.1111/mms.13121","url":null,"abstract":"","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 2","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140171295","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":"First evidence of bubble trail production in Eden's whale (Balaenoptera edeni edeni)","authors":"Aamir Ibrahim,&nbsp;Jing Sun,&nbsp;Fangting Lu,&nbsp;Guang Yang,&nbsp;Bingyao Chen","doi":"10.1111/mms.13120","DOIUrl":"10.1111/mms.13120","url":null,"abstract":"","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140017010","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":"An observation of sexual behavior between two male humpback whales","authors":"Stephanie H. Stack,&nbsp;Lyle Krannichfeld,&nbsp;Brandi Romano","doi":"10.1111/mms.13119","DOIUrl":"10.1111/mms.13119","url":null,"abstract":"&lt;p&gt;Humpback whales (&lt;i&gt;Megaptera novaeangliae&lt;/i&gt;) are a species whose social behavior has been studied for decades, but whose sexual behavior remains largely undescribed. Most humpback whales spend the summer months feeding in polar waters and migrate during fall and winter months to tropical waters, where the observed behaviors are related largely to reproduction (Chittleborough, &lt;span&gt;1965&lt;/span&gt;; Craig et al., &lt;span&gt;2003&lt;/span&gt;; Currie et al., &lt;span&gt;2018&lt;/span&gt;). Despite decades of research on humpback whales around the world, reports of penis extrusion by males are relatively rare (Herman et al., &lt;span&gt;2007&lt;/span&gt;; Pack et al., &lt;span&gt;1998&lt;/span&gt;, &lt;span&gt;2002&lt;/span&gt;) and copulation in humpback whales has not yet been documented (Ransome et al., &lt;span&gt;2021&lt;/span&gt;). This is the first report of penetration by a humpback whale, and the first report of sexual activity between two male humpback whales.&lt;/p&gt;&lt;p&gt;Nonreproductive sexual behavior occurs between individuals whose age and/or sex mean that there is no possibility of producing offspring, such as same sex interactions or interactions between immature animals (Furuichi et al., &lt;span&gt;2014&lt;/span&gt;). In many species, the functions of sexual behavior extend beyond reproduction. Heterosexual behavior often occurs in nonreproductive contexts and homosexual behavior is common in the animal kingdom (Bagemihl, &lt;span&gt;1999&lt;/span&gt;). Sexual interactions between individuals of the same sex have been documented for a wide range of species, as reviewed in Bagemihl (&lt;span&gt;1999&lt;/span&gt;).&lt;/p&gt;&lt;p&gt;Among marine mammals, there are observations of this behavior in pinnipeds, e.g., walrus, &lt;i&gt;Odobenus rosmarus&lt;/i&gt;; gray seal, &lt;i&gt;Halichoerus grypus&lt;/i&gt;; and cetaceans, e.g., Amazon river dolphin, &lt;i&gt;Inia geoffrensis&lt;/i&gt;; common bottlenose dolphin, &lt;i&gt;Tursiops truncatus&lt;/i&gt;; Atlantic spotted dolphin, &lt;i&gt;Stenella frontalis&lt;/i&gt;; killer whales &lt;i&gt;Orcinus orca&lt;/i&gt;; gray whale, &lt;i&gt;Eschrichtius robustus&lt;/i&gt;; and bowhead whale, &lt;i&gt;Balaena mysticetus&lt;/i&gt; (reviewed in Bagemihl, &lt;span&gt;1999&lt;/span&gt;; Ham et al., &lt;span&gt;2023&lt;/span&gt;). In male cetaceans, homosexual activity can involve insertion of the penis of one male into the genital slit (Sylvestre, &lt;span&gt;1985&lt;/span&gt;) or anus (Renjun et al., &lt;span&gt;1994&lt;/span&gt;) of another male. The purpose for nonreproductive behavior is varied; proposed functions include learning or practicing reproductive behaviors, establishing or reinforcing dominance relationships, forming social alliances, and/or reduction in social tension (reviewed in Bagemihl, &lt;span&gt;1999&lt;/span&gt;; Bailey &amp; Zuk, &lt;span&gt;2009&lt;/span&gt;). Male–male sexual behavior is well studied in common bottlenose dolphins and plays an important role in social interactions among individuals (Caldwell &amp; Caldwell, &lt;span&gt;1972&lt;/span&gt;; Mann, &lt;span&gt;2006&lt;/span&gt;; Östman, &lt;span&gt;1991&lt;/span&gt;). Nonsexual behavior in cetaceans can also be associated with agonism and dominance behavior (Ham et al., &lt;span&gt;2023&lt;/span&gt;). D'Agostino et al. (&lt;span&gt;2017&lt;/span&gt;) desc","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.13119","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140011204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of external tags on maternal postpartum, offspring body mass and breeding frequency in gray seals Halichoerus grypus","authors":"Charity C. Justrabo,&nbsp;Cornelia E. den Heyer,&nbsp;W. Don Bowen,&nbsp;Damian C. Lidgard","doi":"10.1111/mms.13114","DOIUrl":"10.1111/mms.13114","url":null,"abstract":"<p>Few studies have examined the impacts of externally fitted data-loggers and telemetry tags on pinnipeds. We tested for instrument effects on body mass of lactating female gray seals and their offspring and probability of pupping in the next breeding season. Known-age adult females (<i>n</i> = 216) were fitted with instruments in winter, spring, and fall from 1992 to 2018 at Sable Island, Nova Scotia. Of those tagged in spring and fall, 61 of 135 returning females and 59 of their offspring were weighed within 5 days postpartum and 79 pups were weighed at weaning. Instrumented females were assigned to treatments based on tag frontal area sums, tag mass, deployment duration, and acoustic tag presence compared to control females without instruments using linear mixed-effects models. None of the treatment effects were included in the preferred models predicting birth mass of offspring or probability of breeding in the following year. The small negative effect (−3% to −7%) on postpartum maternal mass and pup weaning mass (−4.7%) for females instrumented in fall may be an artifact as longer spring deployments showed no effect. Overall, we found that the instruments deployed had no detectable negative effects on the maternal and offspring variables measured.</p>","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.13114","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140007268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Underwater vocalizations in foraging female Antarctic fur seals (Arctocephalus gazella) in the Kerguelen Islands","authors":"Mathilde Chevallay,&nbsp;Christophe Guinet,&nbsp;Tiphaine Jeanniard du Dot","doi":"10.1111/mms.13118","DOIUrl":"10.1111/mms.13118","url":null,"abstract":"<p>In the marine environment, many animals use sound to interact and communicate with their conspecifics or other species. Over the last decades, the development of sound recording systems has allowed a significant advance in our knowledge of sound production in marine animals. We deployed miniature sound and movement tags on Antarctic fur seals (AFS), a small otariid foraging on mesopelagic fish, to uncover potential underwater vocalizations in this species. Tags recorded underwater sounds synchronously with high-resolution AFS movements and diving behavior, allowing us to investigate the behavioral context of vocalizations in the natural environment. We provide evidence of underwater vocalizations in foraging female AFS in a context of foraging at sea. AFS produced stereotyped calls made of low-frequency pulses produced in series, exclusively during foraging dives. We hypothesized that these acoustic pulse series could be used as an acoustic lure to confuse or attract fish prey, however, a larger sample size is needed to study the adaptive significance of these underwater vocalizations.</p>","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.13118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139956507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Passive acoustic monitoring and visual sighting survey of cetacean occurrence patterns in the Kingdom of Saudi Arabia","authors":"Isla Duporge,&nbsp;Robert Lee,&nbsp;Ameer Eweida,&nbsp;Peter Mackelworth,&nbsp;Sofía Ten,&nbsp;Abdulaziz Alghamdi,&nbsp;Razan Alkhamis,&nbsp;Jesse Cochran,&nbsp;Stephen Lee,&nbsp;Holger Klinck","doi":"10.1111/mms.13113","DOIUrl":"10.1111/mms.13113","url":null,"abstract":"<p>The available data on occurrence patterns of cetaceans in the Red Sea area of the Kingdom of Saudi Arabia is very limited. The dearth of information is of pressing conservation concern as the coastline is undergoing rapid development as part of the Kingdom's effort to diversify its national economy. To understand how these developments will impact cetaceans in the region, the first large-scale acoustic and visual survey in the Kingdom's part of the Gulf of Aqaba and the northeastern Red Sea was undertaken in 2020. The results of the acoustic surveys reveal 3.6 encounters per 100 km of track line of odontocete species with variable distribution across the study area. No baleen whale vocalizations were detected. Through visual surveys, five odontocete species were identified within the study area: <i>Tursiops truncatus</i>, <i>T. aduncus</i>, <i>Stenella attenuata</i>, <i>S. longirostris</i>, and two opportunistic sightings of a single <i>Grampus griseus</i>.</p>","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.13113","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fine-scale distribution of the lungworm Halocercus delphini in the lungs of the striped dolphin, Stenella coeruleoalba: implications about migration pathways and functional significance","authors":"Rachel V. Pool,&nbsp;Neus Pons-García,&nbsp;Francesco Consoli,&nbsp;Miguel Rivero,&nbsp;Cristiano Bombardi,&nbsp;Juan A. Raga,&nbsp;Francisco J. Aznar","doi":"10.1111/mms.13111","DOIUrl":"10.1111/mms.13111","url":null,"abstract":"<p>Despite their high pathogenicity, limited knowledge is available on intrahost migration pathways and microhabitat distribution of pseudaliid lungworms. In this study, the distribution of <i>Halocercus delphini</i> in the lungs of the striped dolphin, <i>Stenella coeruleoalba</i>, was analyzed on three scales: between the right and left lungs, within the lungs, and between worm clusters. Evidence of a relationship between the distribution of <i>H. delphini</i> and the perfusion of the lungs of <i>S. coeruleoalba</i> is provided by the consistent correlation of these two factors, both on a longitudinal scale and by the difference in parasite burden between the left and right lung. This relationship, when coupled with the nested pattern of colonization, suggests that this species, like many other metastrongyloids, migrates to the lungs via the circulatory system. Additionally, the concentration of lungworms around the major airways could be a further reflection of the well-perfused nature of these passageways. Equally, this distribution could be a strategy to minimize the distance that larvae must travel to exit the lungs via the trachea, as do most other metastrongyloids. On a more localized scale, the tendency of <i>H. delphini</i> to form distinct heterosexual clusters even at low infection intensities indicates active mate-seeking behavior for reproduction.</p>","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.13111","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A demographic survey of the Davis Strait polar bear subpopulation using physical and genetic capture-recapture-recovery sampling","authors":"Kylee D. Dunham,&nbsp;Markus G. Dyck,&nbsp;Jasmine V. Ware,&nbsp;Andrew E. Derocher,&nbsp;Eric V. Regehr,&nbsp;Harry L. Stern,&nbsp;Garry B. Stenson,&nbsp;David N. Koons","doi":"10.1111/mms.13107","DOIUrl":"10.1111/mms.13107","url":null,"abstract":"<p>Conducting assessments to understand the effects of changing environmental conditions on polar bear (<i>Ursus maritimus</i>) demography has become increasingly important to inform management and conservation. Here, we combined physical (2005–2007) and genetic (2017–2018) mark-recapture with harvest recovery data (2005–2018) to estimate demographic rates of the Davis Strait polar bear subpopulation and examine the possible effects of climate, dynamic ice habitat, and prey resources on survival. Large sample sizes (e.g., 2,513 marked animals) allowed us to estimate temporal variation in annual survival rates using multistate mark-recapture-recovery models. We did not detect statistically significant effects of climate, ice habitat, and prey during the 13-year study. Estimated total abundance in 2006 was 2,190, credible interval (CRI) [1,954, 2,454] and 1,944, CRI [1,593, 2,366] in 2018. Geometric mean population growth rate (0.99, 95% CRI [0.97, 1.01]) indicated the subpopulation may have declined slightly between 2006 and 2018. However, we did not detect a declining trend in survival or substantial change in reproductive metrics over this period. Given forecasts of major environmental change we emphasize the need to review monitoring programs for this subpopulation.</p>","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"40 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139838772","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}