Marine Mammal Science最新文献_第5页

Group-Specific Variation in Heterodyne Frequencies of Biphonic Calls in Resident (R-Type) Killer Whales Orcinus orca ater r型虎鲸（Orcinus orca）水域双声道叫声外差频率的群体特异性变化

IF 1.7 3区生物学

Marine Mammal Science Pub Date : 2026-08-04 DOI: 10.1111/mms.70251

Vera I. Fedorova, Ilya A. Volodin, Tatiana V. Ivkovich, Elena V. Volodina, Erich Hoyt, Olga A. Filatova

{"title":"Group-Specific Variation in Heterodyne Frequencies of Biphonic Calls in Resident (R-Type) Killer Whales Orcinus orca ater","authors":"Vera I. Fedorova, Ilya A. Volodin, Tatiana V. Ivkovich, Elena V. Volodina, Erich Hoyt, Olga A. Filatova","doi":"10.1111/mms.70251","DOIUrl":"https://doi.org/10.1111/mms.70251","url":null,"abstract":"Biphonation—the simultaneous production of two independent fundamental frequencies within a single vocalization—is a prominent feature of killer whale calls, yet the factors influencing the presence and intensity of heterodyne frequencies, which arise from interactions between these fundamentals, remain poorly understood. We analyzed long-term acoustic recordings of killer whales from Avacha Gulf, Kamchatka, focusing on two widespread biphonic call types across eight families. For each call, we quantified the prominence of heterodyne frequencies and measured relative intensity parameters between the fundamentals (lower F0 and upper G0) and heterodynes. Our results reveal pronounced family-level differences in heterodyne expression. Six families exhibited consistently strong heterodyne frequencies, whereas two families showed absent or weakly expressed heterodynes. Relative intensity of F0 vs. G0 and heterodynes vs. G0 differed significantly between call types and families, and were positively correlated. Calls with poorly expressed heterodyne frequencies usually had lower relative intensity of F0, indicating a link between fundamental amplitudes and heterodyne strength. These findings suggest that killer whales can modulate heterodyne expression, potentially reflecting differences in sound production or propagation through the tissues. Moreover, the family-specific patterns of heterodyne expression indicate that heterodyne frequencies may serve as culturally transmitted acoustic markers, contributing to dialect identity and facilitating recognition among matrilineal social units.","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"42 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.70251","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667310","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}

引用次数: 0

Structural Variation in Whistle Patterns of Two Coastal Dolphin Species Co-Occurring in the Southern Israeli Mediterranean Sea 在以色列地中海南部共存的两种海岸海豚鸣笛模式的结构变化

IF 1.7 3区生物学

Marine Mammal Science Pub Date : 2026-08-04 DOI: 10.1111/mms.70243

Y. E. Zuriel, I. Aharoni, D. Atch, O. Galili, D. Tchernov, A. Scheinin, D. Kerem

{"title":"Structural Variation in Whistle Patterns of Two Coastal Dolphin Species Co-Occurring in the Southern Israeli Mediterranean Sea","authors":"Y. E. Zuriel, I. Aharoni, D. Atch, O. Galili, D. Tchernov, A. Scheinin, D. Kerem","doi":"10.1111/mms.70243","DOIUrl":"https://doi.org/10.1111/mms.70243","url":null,"abstract":"Two coastal dolphin species, the common bottlenose dolphin (Tursiops truncatus—Tt) and the short-beaked common dolphin (Delphinus delphis—Dd), co-occur along the southern Israeli Mediterranean coast, where the critically endangered Dd population faces ecological pressures, potentially including competitive exclusion by that of the Tt population. In this context, reliable acoustic differentiation between the two species is needed to supplement visual differentiation. This study aimed to assess whether species-specific whistle characteristics could be used to acoustically distinguish between the two taxa using a novel manual contour extraction tool, Sound Annotator, combined with machine learning classification. A total of 940 high-quality whistles (705 Dd, 235 Tt) from field recordings collected between 2018 and 2024 were available for analysis. Sixteen frequency, temporal, and shape parameters were derived from the extracted contours and analyzed with multiple classification models. Principal component analysis revealed high acoustic overlap, yet the XGBoost classifier effectively classified individual whistles, with minimum, median, and beginning frequency emerging as the most informative features. This framework facilitates non-invasive, species-specific monitoring of dolphin populations in challenging visual conditions, particularly at night, providing a foundation for conservation-focused acoustic monitoring in the eastern Mediterranean.","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"42 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.70243","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667354","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}

引用次数: 0

Group-Specific Variation in Heterodyne Frequencies of Biphonic Calls in Resident (R-Type) Killer Whales Orcinus orca ater r型虎鲸（Orcinus orca）水域双声道叫声外差频率的群体特异性变化

IF 1.7 3区生物学

Marine Mammal Science Pub Date : 2026-08-04 DOI: 10.1111/mms.70251

Vera I. Fedorova, Ilya A. Volodin, Tatiana V. Ivkovich, Elena V. Volodina, Erich Hoyt, Olga A. Filatova

{"title":"Group-Specific Variation in Heterodyne Frequencies of Biphonic Calls in Resident (R-Type) Killer Whales Orcinus orca ater","authors":"Vera I. Fedorova, Ilya A. Volodin, Tatiana V. Ivkovich, Elena V. Volodina, Erich Hoyt, Olga A. Filatova","doi":"10.1111/mms.70251","DOIUrl":"https://doi.org/10.1111/mms.70251","url":null,"abstract":"Biphonation—the simultaneous production of two independent fundamental frequencies within a single vocalization—is a prominent feature of killer whale calls, yet the factors influencing the presence and intensity of heterodyne frequencies, which arise from interactions between these fundamentals, remain poorly understood. We analyzed long-term acoustic recordings of killer whales from Avacha Gulf, Kamchatka, focusing on two widespread biphonic call types across eight families. For each call, we quantified the prominence of heterodyne frequencies and measured relative intensity parameters between the fundamentals (lower F0 and upper G0) and heterodynes. Our results reveal pronounced family-level differences in heterodyne expression. Six families exhibited consistently strong heterodyne frequencies, whereas two families showed absent or weakly expressed heterodynes. Relative intensity of F0 vs. G0 and heterodynes vs. G0 differed significantly between call types and families, and were positively correlated. Calls with poorly expressed heterodyne frequencies usually had lower relative intensity of F0, indicating a link between fundamental amplitudes and heterodyne strength. These findings suggest that killer whales can modulate heterodyne expression, potentially reflecting differences in sound production or propagation through the tissues. Moreover, the family-specific patterns of heterodyne expression indicate that heterodyne frequencies may serve as culturally transmitted acoustic markers, contributing to dialect identity and facilitating recognition among matrilineal social units.","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"42 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.70251","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667435","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}

引用次数: 0

Be the Captain, Not the Crew: Effective Development and Deployment of Artificial Intelligence in Marine Mammal Science 做船长，而不是船员：人工智能在海洋哺乳动物科学中的有效发展和部署

IF 1.7 3区生物学

Marine Mammal Science Pub Date : 2026-08-04 DOI: 10.1111/mms.70238

Ted Cheeseman, Brian Miller, Shyam Madhusudhana, Amanda Hodgson

{"title":"Be the Captain, Not the Crew: Effective Development and Deployment of Artificial Intelligence in Marine Mammal Science","authors":"Ted Cheeseman, Brian Miller, Shyam Madhusudhana, Amanda Hodgson","doi":"10.1111/mms.70238","DOIUrl":"https://doi.org/10.1111/mms.70238","url":null,"abstract":"<div>\u0000 \u0000 Machine learning (ML), particularly the availability of deep neural networks, has enabled the proliferation of modern artificial intelligence (AI) and has revolutionized data processing capacity in marine mammal science. The development and application of these systems has delivered 1000-fold increases in throughput for applications such as photo identification and orders of magnitude increases in performance for passive acoustic detection of calls. Some AI systems now exceed the performance of human experts. As marine environments face unprecedented and compounding pressures from climate change, habitat degradation, and anthropogenic disturbance, these technological advances offer powerful promise. However, the success of AI applications depends less on algorithm sophistication than on the underlying information systems that enable their functionality. Here, we argue that marine mammal scientists must approach AI development with intentional agency—as captains rather than crew—emphasizing system-level design, interpretability, human oversight, and collaborative frameworks. We examine the spectrum of AI capabilities today, from pattern recognition where ML excels to context judgments and value judgments which must remain defined and decided by humans. By designing AI systems that center domain expertise, prioritize accessibility, and facilitate community engagement, the marine mammal science community can harness computational power while maintaining scientific rigor and advancing equitable conservation outcomes.\u0000 </div>","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"42 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667351","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}

引用次数: 0

Microplastic Munchies: Exploring Microplastic Trophic Transfer Potential Between Two Key Prey Fish Species and Resident Common Bottlenose Dolphins (Tursiops truncatus) in Sarasota Bay, Florida. 微塑料食物：探索佛罗里达州萨拉索塔湾两种主要猎物鱼类和常驻普通宽吻海豚（Tursiops truncatus）之间的微塑料营养转移潜力。

IF 1.7 3区生物学

Marine Mammal Science Pub Date : 2026-07-01 Epub Date: 2026-05-15 DOI: 10.1111/mms.70198

Estella Martin, Randall S Wells, Elizabeth J Berens McCabe, Miranda K Dziobak, Savannah M Case, Tita Curtin, Eric Conger, Ayushi Gaur, Millie A Knowles, Robyn Faulkner Allen, Christina N Toms, John E Weinstein, Leslie B Hart

{"title":"Microplastic Munchies: Exploring Microplastic Trophic Transfer Potential Between Two Key Prey Fish Species and Resident Common Bottlenose Dolphins (Tursiops truncatus) in Sarasota Bay, Florida.","authors":"Estella Martin, Randall S Wells, Elizabeth J Berens McCabe, Miranda K Dziobak, Savannah M Case, Tita Curtin, Eric Conger, Ayushi Gaur, Millie A Knowles, Robyn Faulkner Allen, Christina N Toms, John E Weinstein, Leslie B Hart","doi":"10.1111/mms.70198","DOIUrl":"10.1111/mms.70198","url":null,"abstract":"Microplastics have been identified in hundreds of species, with evidence of trophic transfer via contaminated prey. Sarasota Bay common bottlenose dolphins (Tursiops truncatus) serve as sentinels of coastal pollution, including plastics and chemical plasticizers. Previous research confirmed microplastic ingestion in these dolphins (100.0%, n = 7) and extensive contamination in 11 common prey species (96.5%, n = 86). This study compared microplastic characteristics in dolphins, Gulf toadfish (Opsanus beta, n = 30) and pinfish (Lagodon rhomboides, n = 35), to assess potential trophic transfer. Dolphin ingestion was evaluated using gastric (n = 23) and fecal (n = 15) samples from catch-and-release health assessments (2022-2024), while prey gastrointestinal and muscle tissues were screened. Particles were prevalent across samples (dolphins: 82.6%, pinfish: 97.1%, toadfish: 96.7%), with fibers as the dominant shape. Raman spectroscopy confirmed plastic polymers (PL, PP, and PET) in all species. Pinfish had a higher median particle load (1.4 particles/g tissue) than toadfish (0.6 particles/g tissue; p = 0.006). Based on estimated daily food intake (5.96-6.45 kg) and diet composition (toadfish-34.1%, pinfish-38.1%), Sarasota dolphins may ingest more than 10,000 particles/day from these fish alone. Contaminated prey may be vectors for dolphin microplastic exposure. This study emphasizes the need for further research on microplastic pathways in marine food webs and implications for wildlife.","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"42 3","pages":"e70198"},"PeriodicalIF":1.7,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13261691/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148252404","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}

引用次数: 0

Life History Parameters of Indian Ocean Humpback Dolphins Sousa plumbea Off KwaZulu-Natal, South Africa 南非夸祖鲁-纳塔尔省海域印度洋座头海豚的生活史参数

IF 1.7 3区生物学

Marine Mammal Science Pub Date : 2026-06-18 DOI: 10.1111/mms.70181

Stephanie Plön, Natasha Roussouw, Zianca Nolte, William P. Froneman

{"title":"Life History Parameters of Indian Ocean Humpback Dolphins Sousa plumbea Off KwaZulu-Natal, South Africa","authors":"Stephanie Plön, Natasha Roussouw, Zianca Nolte, William P. Froneman","doi":"10.1111/mms.70181","DOIUrl":"https://doi.org/10.1111/mms.70181","url":null,"abstract":"For the effective conservation of coastal cetaceans, such as Indian Ocean humpback dolphin, Sousa plumbea, currently listed as “Endangered” by the International Union for the Conservation of Nature (IUCN), information on its life history is urgently required. To fill this gap, the age of 119 humpback dolphins (74 males and 45 females) incidentally caught in bather protection nets (BPN) off the east-coast of South Africa over a 40-year period was determined by counting tooth growth layer groups (GLGs). Estimated length at birth using Scott's equation was 111.57 cm for males and 104.33 cm for females. A Gompertz growth curve indicated that physical maturity was reached at 268.03 cm in males and 246.12 cm in females, corresponding to 24 and 13 years, respectively. Histological analyses of reproductive organs of 45 males and 28 females showed that sexual maturity in males is attained at 7.5 years, and 210 cm total body length. In females, sexual maturity occurred around 8 years and a body length of 220 cm. The ovulation rate was 0.2 per year, indicating a calving interval of approximately 5 years. These results will aid in assessing the status of the South African population of Indian Ocean humpback dolphins.","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"42 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.70181","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148282197","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}

引用次数: 0

Humpback Whale (Megaptera novaeangliae) Site Fidelity, Residency, and Movement Patterns in Ireland Based on Citizen Science Data 基于公民科学数据的爱尔兰座头鲸（Megaptera novaeangliae）站点保真度，居住和运动模式

IF 1.7 3区生物学

Marine Mammal Science Pub Date : 2026-06-18 DOI: 10.1111/mms.70188

Miguel Blázquez, Pádraig Whooley, Nick Massett, Joanne M. O′Brien, Frederick W. Wenzel, Ian O′Connor, Simon D. Berrow

{"title":"Humpback Whale (Megaptera novaeangliae) Site Fidelity, Residency, and Movement Patterns in Ireland Based on Citizen Science Data","authors":"Miguel Blázquez, Pádraig Whooley, Nick Massett, Joanne M. O′Brien, Frederick W. Wenzel, Ian O′Connor, Simon D. Berrow","doi":"10.1111/mms.70188","DOIUrl":"https://doi.org/10.1111/mms.70188","url":null,"abstract":"Understanding the residency and movement patterns of large cetaceans like the humpback whale is crucial for effective conservation. In Ireland, the Irish Whale and Dolphin Group has been collecting humpback whale data since the 1990s, primarily through citizen science. This collective effort has contributed to the creation of the Irish Humpback Whale Photo-identification Catalogue. Using this dataset, we assessed humpback whale intra- and inter-annual site fidelity in Irish waters by calculating resighting rates and composite indices. Lagged identification rates and net squared displacements were used to describe residency times and movement patterns. We also modeled changes in migration timing, exploring possible phenological adaptations to a changing ocean. Humpback whales showed high site fidelity to Irish waters, with a mean interannual resighting rate of 70%, and 25% of identified individuals were resighted in five or more different years. Residency times were modeled at a minimum of 20 days, with a minimum estimated home range of 100 km. Earlier arrivals in Irish waters were significantly correlated with rising global ocean temperatures. Our study offers the most comprehensive data on humpback whale residency and movement in this region, highlighting the value of citizen science and rigorous data management for marine conservation.","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"42 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.70188","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148282198","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}

引用次数: 0

Baleen Whale Occurrence in the Waters Off Virginia and North Carolina, U.S.A. From 2001 to 2019 2001年至2019年美国弗吉尼亚州和北卡罗来纳州海域须鲸的发生情况

IF 1.7 3区生物学

Marine Mammal Science Pub Date : 2026-06-16 DOI: 10.1111/mms.70179

Sarah D. Mallette, William A. McLellan, D. Ann Pabst, M. Louise Burt, Ryan J. McAlarney, Gwendolyn G. Lockhart, Erin W. Cummings, Joel T. Bell, Matthew B. Ogburn, Philip K. Hamilton, Andrew J. Read, Robert L. Brownell Jr, Tiffany F. Keenan, Len Thomas, Peter G. Fisher, Jackie Bort Thornton, Mark P. Cotter, W. Mark Swingle, Susan G. Barco

{"title":"Baleen Whale Occurrence in the Waters Off Virginia and North Carolina, U.S.A. From 2001 to 2019","authors":"Sarah D. Mallette, William A. McLellan, D. Ann Pabst, M. Louise Burt, Ryan J. McAlarney, Gwendolyn G. Lockhart, Erin W. Cummings, Joel T. Bell, Matthew B. Ogburn, Philip K. Hamilton, Andrew J. Read, Robert L. Brownell Jr, Tiffany F. Keenan, Len Thomas, Peter G. Fisher, Jackie Bort Thornton, Mark P. Cotter, W. Mark Swingle, Susan G. Barco","doi":"10.1111/mms.70179","DOIUrl":"https://doi.org/10.1111/mms.70179","url":null,"abstract":"Eighteen years of visual survey and strandings data were used to describe baleen whale occurrence along the continental shelf of Virginia and North Carolina, U.S.A. This region experiences heavy anthropogenic use, which poses risks for mortality and injury to baleen whales. Between 2001 and 2019, six species of baleen whales were recorded, and whales occurred year-round. The total number of (on- and off-effort) sightings and strandings amounted to 838 whales, including humpback (Megaptera novaeangliae, n = 503), fin (Balaenoptera physalus, n = 197), North Atlantic right (Eubalaena glacialis, NARW, n = 76), common minke (B. acutorostrata, n = 51), sei (B. borealis, n = 10), and blue (B. musculus, n = 1) whales. Spatial modeling and abundance estimates indicated whale density and distribution changed seasonally. The highest densities of all whales combined occurred in winter and spring. Across seasons, average densities were highest in the northern portion of the study area. Ninety percent of NARW sightings were outside the designated Seasonal Management Areas in place for their protection. The stranding record offered a complementary view of species richness and seasonality. This study provides a baseline of baleen whale occurrence in an area experiencing increasing anthropogenic pressures (e.g., ship traffic and offshore wind-energy development).","PeriodicalId":18725,"journal":{"name":"Marine Mammal Science","volume":"42 3","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.70179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148282109","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}

引用次数: 0

IF 1.9 3区生物学

Marine Mammal Science Pub Date : 2026-05-25

引用次数: 0

IF 1.9 3区生物学

Marine Mammal Science Pub Date : 2026-05-25

引用次数: 0