Pub Date : 2023-03-15DOI: 10.1578/am.49.2.2023.160
Holli C. Eskelinen, Jill L. Richardson, Kelley A. Winship
{"title":"Fence Fishing: The Use of Algae by Bottlenose Dolphins (Tursiops truncatus) to Attract Fish","authors":"Holli C. Eskelinen, Jill L. Richardson, Kelley A. Winship","doi":"10.1578/am.49.2.2023.160","DOIUrl":"https://doi.org/10.1578/am.49.2.2023.160","url":null,"abstract":"","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41439388","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}
Pub Date : 2023-03-15DOI: 10.1578/am.49.2.2023.195
R. Pitman, Alisa Schulman-Janiger, M. E. Guerrero-Ruíz, Andre Meresiev Ortega-Gonzalez, Hiram Rosales Nanduca, M. Fishbach, Ralph Pace, Rui Rodrigues, Denis Chevallay, Lorena Viloria-Gómora
Historically, there has been only one documented fatal killer whale (Orcinus orca) attack on a fin whale (Balaenoptera physalus)—from Baja California, Mexico (BC), in 2005. We compiled records of seven more recent fatal attacks, including four more from BC. Two male killer whales that we identified were involved, separately or together, in at least four of the five fin whale kills off BC as they traveled with their groups the length of the Baja Peninsula on both sides. They were also involved in two Bryde’s whale (Balaenoptera edeni) kills, and we suggest that they might specialize on large whale prey. We discuss offensive and defensive strategies during these attacks and the role (or lack thereof) of adult male killer whales. One of the fin whales taken appeared to be a healthy adult, which raises questions about large whales as prey for killer whales. We also discuss the burgeoning role of citizen science in this type of research, noting that most of our data came from social media postings.
{"title":"Records of Fatal Killer Whale (Orcinus orca) Attacks on Fin Whales (Balaenoptera physalus) with an Emphasis on Baja California, Mexico","authors":"R. Pitman, Alisa Schulman-Janiger, M. E. Guerrero-Ruíz, Andre Meresiev Ortega-Gonzalez, Hiram Rosales Nanduca, M. Fishbach, Ralph Pace, Rui Rodrigues, Denis Chevallay, Lorena Viloria-Gómora","doi":"10.1578/am.49.2.2023.195","DOIUrl":"https://doi.org/10.1578/am.49.2.2023.195","url":null,"abstract":"Historically, there has been only one documented fatal killer whale (Orcinus orca) attack on a fin whale (Balaenoptera physalus)—from Baja California, Mexico (BC), in 2005. We compiled records of seven more recent fatal attacks, including four more from BC. Two male killer whales that we identified were involved, separately or together, in at least four of the five fin whale kills off BC as they traveled with their groups the length of the Baja Peninsula on both sides. They were also involved in two Bryde’s whale (Balaenoptera edeni) kills, and we suggest that they might specialize on large whale prey. We discuss offensive and defensive strategies during these attacks and the role (or lack thereof) of adult male killer whales. One of the fin whales taken appeared to be a healthy adult, which raises questions about large whales as prey for killer whales. We also discuss the burgeoning role of citizen science in this type of research, noting that most of our data came from social media postings.","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45010666","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}
Pub Date : 2023-03-15DOI: 10.1578/am.49.2.2023.130
R. Reep, G. Bauer
Herein, we report anecdotes of manatee (family Trichechidae) behavior based upon accounts made by experienced observers. We have categorized the anecdotes into the broad categories of Conservation and Management (interactions with boats, people, and capture nets; rehabilitation and release), Behavioral Ecology (navigation, mother–calf interactions, interactions with conspecifics, mating behavior and birthing, anti-predator behavior, foraging and eating), and Cognition (sensory perception; learning, memory, and knowledge; interactions with objects, other species, and people; and mimetic behavior). These are all subjects that pertain to the goals of the Florida Manatee Recovery Plan of 2001. We found that many accounts report similar behaviors, suggesting that these may be fruitful lines of further inquiry. One subcategory, Navigation, appears to offer many research areas amenable to systematic study. The apparent behavioral flexibility and knowledge shown in manatee actions in several domains suggest that investigations of manatee intelligence are likely to be revealing.
{"title":"Anecdotal Accounts of Manatee Behavior: Conservation and Management, Behavioral Ecology, and Cognition","authors":"R. Reep, G. Bauer","doi":"10.1578/am.49.2.2023.130","DOIUrl":"https://doi.org/10.1578/am.49.2.2023.130","url":null,"abstract":"Herein, we report anecdotes of manatee (family Trichechidae) behavior based upon accounts made by experienced observers. We have categorized the anecdotes into the broad categories of Conservation and Management (interactions with boats, people, and capture nets; rehabilitation and release), Behavioral Ecology (navigation, mother–calf interactions, interactions with conspecifics, mating behavior and birthing, anti-predator behavior, foraging and eating), and Cognition (sensory perception; learning, memory, and knowledge; interactions with objects, other species, and people; and mimetic behavior). These are all subjects that pertain to the goals of the Florida Manatee Recovery Plan of 2001. We found that many accounts report similar behaviors, suggesting that these may be fruitful lines of further inquiry. One subcategory, Navigation, appears to offer many research areas amenable to systematic study. The apparent behavioral flexibility and knowledge shown in manatee actions in several domains suggest that investigations of manatee intelligence are likely to be revealing.","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49471649","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}
Indo-Pacific humpback dolphins (Sousa chinensis) live in coastal waters that have experienced considerable anthropogenic disturbances. Specifically, along the coasts of highly urbanized regions, available habitats have decreased in both space and scale. This study used Maxent software to simulate the distribution of suitable habitats for S. chinensis during the dry and wet seasons in Xiamen Bay. We also aimed to identify key environmental factors influencing habitat distribution, with the goal of using our results to analyze conservation gaps and propose adjustments. We found that during the dry season, S. chinensis were mainly distributed in the Western Harbor, Jiulong River Estuary, and the mouth of Tongan Bay. During the wet season, they were distributed in the south of Western Harbor, Jiulong River Estuary, and around the Wuyu and Dadeng-Xiaodeng Islands. Nekton density, chlorophyll-a concentration, sea surface temperature, slope, and salinity are the primary factors affecting S. chinensis distribution in Xiamen Bay. To better protect the species, the existing Tongan Bay reserve should be expanded during dry seasons, and suitable habitats in the Jiulong River Estuary should be turned into a seasonal protected region. Similarly, during wet seasons, the original Western Harbor portion of the reserve should increase to include the Jiulong River Estuary, northwest of the Wuyu Islands and south of the Dadeng-Xiaodeng Islands. In addition to this dynamic seasonal management of reserve size, we also recommend developing multiple-use protected areas and establishing a joint protection mechanism between local governments. In conclusion, our model offers important guidance on improving conservation measures of S. chinensis in Xiamen Bay.
{"title":"Modeling Suitable Habitats of Indo-Pacific Humpback Dolphins (Sousa chinensis) in a Highly Urbanized Bay","authors":"Zhilan Lin, Minhao Gao, Xingguang Yu, Q. Zhu, Zhigang Yu, Xianyan Wang","doi":"10.1578/am.49.2.2023.148","DOIUrl":"https://doi.org/10.1578/am.49.2.2023.148","url":null,"abstract":"Indo-Pacific humpback dolphins (Sousa chinensis) live in coastal waters that have experienced considerable anthropogenic disturbances. Specifically, along the coasts of highly urbanized regions, available habitats have decreased in both space and scale. This study used Maxent software to simulate the distribution of suitable habitats for S. chinensis during the dry and wet seasons in Xiamen Bay. We also aimed to identify key environmental factors influencing habitat distribution, with the goal of using our results to analyze conservation gaps and propose adjustments. We found that during the dry season, S. chinensis were mainly distributed in the Western Harbor, Jiulong River Estuary, and the mouth of Tongan Bay. During the wet season, they were distributed in the south of Western Harbor, Jiulong River Estuary, and around the Wuyu and Dadeng-Xiaodeng Islands. Nekton density, chlorophyll-a concentration, sea surface temperature, slope, and salinity are the primary factors affecting S. chinensis distribution in Xiamen Bay. To better protect the species, the existing Tongan Bay reserve should be expanded during dry seasons, and suitable habitats in the Jiulong River Estuary should be turned into a seasonal protected region. Similarly, during wet seasons, the original Western Harbor portion of the reserve should increase to include the Jiulong River Estuary, northwest of the Wuyu Islands and south of the Dadeng-Xiaodeng Islands. In addition to this dynamic seasonal management of reserve size, we also recommend developing multiple-use protected areas and establishing a joint protection mechanism between local governments. In conclusion, our model offers important guidance on improving conservation measures of S. chinensis in Xiamen Bay.","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42531098","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}
Pub Date : 2023-03-15DOI: 10.1578/am.49.2.2023.208
Myriam Llamas González, Christian D. Ortega‐Ortiz, F. Elorriaga-Verplancken, Ú. González-Peral, M. Liñán-Cabello, Astrid Frisch‐Jordán, L. Medrano-González
{"title":"A Mother–Calf Humpback Whale (Megaptera novaeangliae) Pair from the Southeast Pacific Population Sighted in Mexican Waters","authors":"Myriam Llamas González, Christian D. Ortega‐Ortiz, F. Elorriaga-Verplancken, Ú. González-Peral, M. Liñán-Cabello, Astrid Frisch‐Jordán, L. Medrano-González","doi":"10.1578/am.49.2.2023.208","DOIUrl":"https://doi.org/10.1578/am.49.2.2023.208","url":null,"abstract":"","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41995971","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}
Pub Date : 2023-03-15DOI: 10.1578/am.49.2.2023.117
Umberto Romani-Cremaschi, Agustín Rebollada-Merino, Rocio Canales, Ignacio Vargas-Castro, M. Pérez-Sancho, J. Sánchez-Vizcaíno, M. Domínguez, L. Domínguez, A. Rodríguez-Bertos
{"title":"Histopathology, Immunohistochemical Diagnosis, and Management of Penicillin-Resistant Staphylococcus delphini Cutaneous Infection in a Bottlenose Dolphin","authors":"Umberto Romani-Cremaschi, Agustín Rebollada-Merino, Rocio Canales, Ignacio Vargas-Castro, M. Pérez-Sancho, J. Sánchez-Vizcaíno, M. Domínguez, L. Domínguez, A. Rodríguez-Bertos","doi":"10.1578/am.49.2.2023.117","DOIUrl":"https://doi.org/10.1578/am.49.2.2023.117","url":null,"abstract":"","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41412682","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}
Pub Date : 2023-03-15DOI: 10.1578/am.49.2.2023.167
Florencia O. Vilches, M. Sironi, A. Zerbini, Santiago J. Fernández, M. Uhart, V. Rowntree
{"title":"Life Histories of Satellite-Tracked Southern Right Whales Through Photo-Identification and Citizen Science in Patagonia, Argentina","authors":"Florencia O. Vilches, M. Sironi, A. Zerbini, Santiago J. Fernández, M. Uhart, V. Rowntree","doi":"10.1578/am.49.2.2023.167","DOIUrl":"https://doi.org/10.1578/am.49.2.2023.167","url":null,"abstract":"","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42900451","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}
Pub Date : 2023-03-15DOI: 10.1578/am.49.2.2023.177
Arturo Hernández-Olascoaga, S. Guillén-Hernández, R. Díaz-Gamboa
{"title":"Parasites of Pygmy Sperm Whales (Kogia breviceps) Stranded in the Southern Gulf of Mexico","authors":"Arturo Hernández-Olascoaga, S. Guillén-Hernández, R. Díaz-Gamboa","doi":"10.1578/am.49.2.2023.177","DOIUrl":"https://doi.org/10.1578/am.49.2.2023.177","url":null,"abstract":"","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46495234","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}
Pub Date : 2023-03-15DOI: 10.1578/am.49.2.2023.184
Jaime Bolaños‐Jiménez, J. Kiszka, Laurent Bouveret, G. Rodríguez Ferrer, E. Ramos, Angiolina Henriquez, J. Luksenburg, J. Bernus, Yurasi Briceño, Leonardo Sánchez Criollo
The killer whale (Orcinus orca) is a cosmopolitan cetacean distributed worldwide. Extensive studies have described its ecology and behavior across multiple polar and temperate regions. On the other hand, there is limited information on the distribution, ecological roles, and abundance of killer whales in tropical and subtropical regions. Herein, we build on previous work to update information on the spatiotemporal distribution, exploitation, and natural history of killer whales in the Caribbean Sea. We also document new records on their interaction with other species and human activities. We collated 385 records from the literature, online biodiversity information systems, the Internet (social networks and video-hosting websites), and citizen science-based initiatives. Records included sightings (87.3%), intentional captures (10.6%), bycatch (0.3%), and strandings (1.8%). Data primarily originated from research projects/activities (57%) and citizen science-based initiatives (43%). Records were distributed in the eastern Caribbean (39.5%), the southern Caribbean (19.7%), the Greater Antilles (19.2%), the Bahamian Region (13.0%), Central America (6.8%), and eastern Florida (1.8%). Killer whales were recorded year-round, but most data were reported between March and August (59.6%). The scarcity of records in Central America could reflect true lower densities in the region, lower observation effort, or a combination of the two. Because of the paucity of data, this study supports the growing importance of citizen-science initiatives to document the occurrence and ecology of this species in the Caribbean. Our dataset also confirms the occasional and widespread occurrence of killer whales throughout the Caribbean Sea. Potential low densities and limited predictability of their occurrence hinder dedicated research on this species.
{"title":"The Killer Whale in the Caribbean Sea: An Updated Review of Its Ecology, Exploitation, and Interactions with Fisheries","authors":"Jaime Bolaños‐Jiménez, J. Kiszka, Laurent Bouveret, G. Rodríguez Ferrer, E. Ramos, Angiolina Henriquez, J. Luksenburg, J. Bernus, Yurasi Briceño, Leonardo Sánchez Criollo","doi":"10.1578/am.49.2.2023.184","DOIUrl":"https://doi.org/10.1578/am.49.2.2023.184","url":null,"abstract":"The killer whale (Orcinus orca) is a cosmopolitan cetacean distributed worldwide. Extensive studies have described its ecology and behavior across multiple polar and temperate regions. On the other hand, there is limited information on the distribution, ecological roles, and abundance of killer whales in tropical and subtropical regions. Herein, we build on previous work to update information on the spatiotemporal distribution, exploitation, and natural history of killer whales in the Caribbean Sea. We also document new records on their interaction with other species and human activities. We collated 385 records from the literature, online biodiversity information systems, the Internet (social networks and video-hosting websites), and citizen science-based initiatives. Records included sightings (87.3%), intentional captures (10.6%), bycatch (0.3%), and strandings (1.8%). Data primarily originated from research projects/activities (57%) and citizen science-based initiatives (43%). Records were distributed in the eastern Caribbean (39.5%), the southern Caribbean (19.7%), the Greater Antilles (19.2%), the Bahamian Region (13.0%), Central America (6.8%), and eastern Florida (1.8%). Killer whales were recorded year-round, but most data were reported between March and August (59.6%). The scarcity of records in Central America could reflect true lower densities in the region, lower observation effort, or a combination of the two. Because of the paucity of data, this study supports the growing importance of citizen-science initiatives to document the occurrence and ecology of this species in the Caribbean. Our dataset also confirms the occasional and widespread occurrence of killer whales throughout the Caribbean Sea. Potential low densities and limited predictability of their occurrence hinder dedicated research on this species.","PeriodicalId":8219,"journal":{"name":"Aquatic Mammals","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42699362","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}
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