Description of Selected Behaviours of Humpback Dolphins Sousa Chinensis
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
List of Marine Mammal Species and Subspecies
List of Marine Mammal Species and Subspecies Introduction The Committee on Taxonomy, chaired by Patricia Rosel, produced the first official Society for Marine Mammalogy list of marine mammal species and subspecies in 2010. Consensus on some issues has not been possible; this is reflected in the footnotes. The list is updated at least annually. The current version was updated in May 2020. This list can be cited as follows: “Committee on Taxonomy. 2019. List of marine mammal species and subspecies. Society for Marine Mammalogy, www.marinemammalscience.org, consulted on [date].” This list includes living and recently extinct (within historical times) species and subspecies. It is meant to reflect prevailing usage and recent revisions published in the peer-reviewed literature. Classification and scientific names follow Rice (1998), with adjustments reflecting more recent literature. Author(s) and year of description of each taxon follow the Latin (scientific) species name; when these are enclosed in parentheses, the taxon was originally described in a different genus. The Committee annually considers and evaluates new, peer-reviewed literature that proposes taxonomic changes. The Committee’s focus is on alpha taxonomy (describing and naming taxa) and beta taxonomy primarily at lower levels of the hierarchy (subspecies, species and genera), although it may evaluate issues at higher levels if deemed necessary. Proposals for new, taxonomically distinct taxa require a formal, peer-reviewed study and should provide robust evidence that some subspecies or species criterion was met. For review of species concepts, see Reeves et al. (2004), Orr and Coyne (2004), de Queiroz (2007), Perrin (2009) and Taylor et al. -
A Survey of the Atlantic Humpback Dolphin (Sousa Teuszii) in the Saloum Delta Biosphere Reserve, Senegal, 21 October to 7 November 2015
A survey of the Atlantic humpback dolphin (Sousa teuszii) in the Saloum Delta Biosphere Reserve, Senegal, 21 October to 7 November 2015 Report author: Dr Caroline R. Weir Author contact: www.ketosecology.co.uk Email: [email protected] Tel: +44 (0)777 578 7564 On behalf of: SYLVATROP 26, Rte de Vannes - 44100 Nantes - FRANCE SIRET : 477 748 578 000 10 – NAF : 9499Z Tel : + 33 2 40 40 18 02 - Mobile : + 33 6 87 56 38 61 Email : [email protected] Web site : www.sylvatrop.org Local partners Direction des Parcs Nationaux (DPN) Direction des Aires Marines Communautaires Protégées (DAMCP) Submission date: 7 January 2016 (Version 2) Contents 1. INTRODUCTION 3 1.1. Background 3 1.2. Objectives 3 2. METHODS 6 2.1. Study area 6 2.2. Survey coverage 9 2.3. Survey methods 10 2.3.1. Survey team 10 2.3.2. Survey methodology 11 2.3.3. Dolphin photo-identification 12 2.3.4. Data analysis 13 3. RESULTS 16 3.1. Survey effort 16 3.2. Dolphin sightings 19 3.3. Dolphin distribution 21 3.3.1. Survey data 21 3.3.2. Information from questionnaires 25 3.4. Dolphin relative abundance 28 3.5. Dolphin group size and composition 29 3.6. Dolphin photo-identification 33 3.6.1. Minimum population size 33 3.6.2. Movements within the Saloum Delta 36 4. DISCUSSION 39 4.1. Survey effort and logistics 39 4.2. Dolphin distribution and movements 39 4.3. Photo-identification 42 4.4. Managing the Sousa dolphin population 45 4.5. -
Life History of the Indo-Pacific Humpback Dolphin in the Pearl
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by UNL | Libraries University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Publications, Agencies and Staff of the U.S. Department of Commerce U.S. Department of Commerce 2011 Life history of the Indo-Pacific humpback dolphin in the earlP River Estuary, southern China Thomas A. Jefferson Clymene Enterprises, [email protected] Samuel K. Hung Hong Kong Cetacean Research Project Kelly M. Robertson NOAA Frederick I. Archer NOAA Follow this and additional works at: https://digitalcommons.unl.edu/usdeptcommercepub Part of the Environmental Sciences Commons Jefferson, Thomas A.; Hung, Samuel K.; Robertson, Kelly M.; and Archer, Frederick I., "Life history of the Indo-Pacific humpback dolphin in the Pearl River Estuary, southern China" (2011). Publications, Agencies and Staff of the U.S. Department of Commerce. 283. https://digitalcommons.unl.edu/usdeptcommercepub/283 This Article is brought to you for free and open access by the U.S. Department of Commerce at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Publications, Agencies and Staff of the U.S. Department of Commerce by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. MARINE MAMMAL SCIENCE, **(*): ***–*** (*** 2011) C 2011 by the Society for Marine Mammalogy DOI: 10.1111/j.1748-7692.2010.00462.x Life history of the Indo-Pacific humpback dolphin in the Pearl River Estuary, southern China THOMAS A. JEFFERSON Clymene Enterprises, 5495 Camino Playa Malaga, San Diego, California 92124, U.S.A. E-mail: [email protected] SAMUEL K. HUNG Hong Kong Cetacean Research Project, Lam Tin, Kowloon, Hong Kong KELLY M. -
Marine Mammal Taxonomy
Marine Mammal Taxonomy Kingdom: Animalia (Animals) Phylum: Chordata (Animals with notochords) Subphylum: Vertebrata (Vertebrates) Class: Mammalia (Mammals) Order: Cetacea (Cetaceans) Suborder: Mysticeti (Baleen Whales) Family: Balaenidae (Right Whales) Balaena mysticetus Bowhead whale Eubalaena australis Southern right whale Eubalaena glacialis North Atlantic right whale Eubalaena japonica North Pacific right whale Family: Neobalaenidae (Pygmy Right Whale) Caperea marginata Pygmy right whale Family: Eschrichtiidae (Grey Whale) Eschrichtius robustus Grey whale Family: Balaenopteridae (Rorquals) Balaenoptera acutorostrata Minke whale Balaenoptera bonaerensis Arctic Minke whale Balaenoptera borealis Sei whale Balaenoptera edeni Byrde’s whale Balaenoptera musculus Blue whale Balaenoptera physalus Fin whale Megaptera novaeangliae Humpback whale Order: Cetacea (Cetaceans) Suborder: Odontoceti (Toothed Whales) Family: Physeteridae (Sperm Whale) Physeter macrocephalus Sperm whale Family: Kogiidae (Pygmy and Dwarf Sperm Whales) Kogia breviceps Pygmy sperm whale Kogia sima Dwarf sperm whale DOLPHIN R ESEARCH C ENTER , 58901 Overseas Hwy, Grassy Key, FL 33050 (305) 289 -1121 www.dolphins.org Family: Platanistidae (South Asian River Dolphin) Platanista gangetica gangetica South Asian river dolphin (also known as Ganges and Indus river dolphins) Family: Iniidae (Amazon River Dolphin) Inia geoffrensis Amazon river dolphin (boto) Family: Lipotidae (Chinese River Dolphin) Lipotes vexillifer Chinese river dolphin (baiji) Family: Pontoporiidae (Franciscana) -
Review of Small Cetaceans. Distribution, Behaviour, Migration and Threats
Review of Small Cetaceans Distribution, Behaviour, Migration and Threats by Boris M. Culik Illustrations by Maurizio Wurtz, Artescienza Marine Mammal Action Plan / Regional Seas Reports and Studies no. 177 Published by United Nations Environment Programme (UNEP) and the Secretariat of the Convention on the Conservation of Migratory Species of Wild Animals (CMS). Review of Small Cetaceans. Distribution, Behaviour, Migration and Threats. 2004. Compiled for CMS by Boris M. Culik. Illustrations by Maurizio Wurtz, Artescienza. UNEP / CMS Secretariat, Bonn, Germany. 343 pages. Marine Mammal Action Plan / Regional Seas Reports and Studies no. 177 Produced by CMS Secretariat, Bonn, Germany in collaboration with UNEP Coordination team Marco Barbieri, Veronika Lenarz, Laura Meszaros, Hanneke Van Lavieren Editing Rüdiger Strempel Design Karina Waedt The author Boris M. Culik is associate Professor The drawings stem from Prof. Maurizio of Marine Zoology at the Leibnitz Institute of Wurtz, Dept. of Biology at Genova Univer- Marine Sciences at Kiel University (IFM-GEOMAR) sity and illustrator/artist at Artescienza. and works free-lance as a marine biologist. Contact address: Contact address: Prof. Dr. Boris Culik Prof. Maurizio Wurtz F3: Forschung / Fakten / Fantasie Dept. of Biology, Genova University Am Reff 1 Viale Benedetto XV, 5 24226 Heikendorf, Germany 16132 Genova, Italy Email: [email protected] Email: [email protected] www.fh3.de www.artescienza.org © 2004 United Nations Environment Programme (UNEP) / Convention on Migratory Species (CMS). This publication may be reproduced in whole or in part and in any form for educational or non-profit purposes without special permission from the copyright holder, provided acknowledgement of the source is made. -
Cetaceans of the Red Sea - CMS Technical Series Publication No
UNEP / CMS Secretariat UN Campus Platz der Vereinten Nationen 1 D-53113 Bonn Germany Tel: (+49) 228 815 24 01 / 02 Fax: (+49) 228 815 24 49 E-mail: [email protected] www.cms.int CETACEANS OF THE RED SEA Cetaceans of the Red Sea - CMS Technical Series Publication No. 33 No. Publication Series Technical Sea - CMS Cetaceans of the Red CMS Technical Series Publication No. 33 UNEP promotes N environmentally sound practices globally and in its own activities. This publication is printed on FSC paper, that is W produced using environmentally friendly practices and is FSC certified. Our distribution policy aims to reduce UNEP‘s carbon footprint. E | Cetaceans of the Red Sea - CMS Technical Series No. 33 MF Cetaceans of the Red Sea - CMS Technical Series No. 33 | 1 Published by the Secretariat of the Convention on the Conservation of Migratory Species of Wild Animals Recommended citation: Notarbartolo di Sciara G., Kerem D., Smeenk C., Rudolph P., Cesario A., Costa M., Elasar M., Feingold D., Fumagalli M., Goffman O., Hadar N., Mebrathu Y.T., Scheinin A. 2017. Cetaceans of the Red Sea. CMS Technical Series 33, 86 p. Prepared by: UNEP/CMS Secretariat Editors: Giuseppe Notarbartolo di Sciara*, Dan Kerem, Peter Rudolph & Chris Smeenk Authors: Amina Cesario1, Marina Costa1, Mia Elasar2, Daphna Feingold2, Maddalena Fumagalli1, 3 Oz Goffman2, 4, Nir Hadar2, Dan Kerem2, 4, Yohannes T. Mebrahtu5, Giuseppe Notarbartolo di Sciara1, Peter Rudolph6, Aviad Scheinin2, 7, Chris Smeenk8 1 Tethys Research Institute, Viale G.B. Gadio 2, 20121 Milano, Italy 2 Israel Marine Mammal Research and Assistance Center (IMMRAC), Mt. -
Dhofar IMMA Summary
Dhofar IMMA Summary The waters off the coast of the Dhofar region of southern Oman are characterized by dynamic oceanographic conditions strongly influenced by summer and winter monsoons. The summer monsoon creates strong upwelling conditions and high levels of primary productivity between the months of May and September. Highly variable bathymetry in the IMMA comprises wide protected bays and islands on the edge of the continental shelf Area Size as well as steep slopes that plummet to great depths. 19,168 km2 This variety provides a range of highly productive habitats for a diverse array of cetacean species. The Qualifying Species and Criteria area has been documented as a ‘hotspot’ for Endangered Arabian Sea humpback whales Indian Ocean blue whale – (Megaptera novaeangliae). This sub-population is the Balaenoptera musculus indica only known non-migratory humpback whale Criteria A, C2 population in the world, as the animals remain in the Arabian Sea year-round to both feed and Bryde’s whale - Balaenoptera edeni breed. Individually identified humpback whales in the Criteria A, C2 Dhofar IMMA demonstrate a high degree of site fidelity, as well as behaviours associated with both Humpback whale – Megaptera novaeangliae feeding and reproduction (singing males (Fig. 1) and Criteria A, B2, C1, C2 mothers with calves). In total, 17 cetacean species have been observed in the region thus far, ranging Sperm whale – Physeter macrocephalus from resident nearshore communities of Endangered Criteria C1, C2 Indian Ocean humpback dolphins (Sousa plumbea) and Indo-Pacific bottlenose dolphins (Tursiops False killer whale – Pseudorca crassidens aduncus) to deep-diving species such as Risso’s Criterion C1 dolphins (Grampus griseus), rough toothed dolphins (Steno bredanensis) and Cuvier’s beaked whales Indian Ocean humpback dolphin – Sousa plumbea (Ziphius cavirostris). -
Indo-Pacific Humpback and Australian Snubfin Dolphins
A Vulnerability Assessment for the Great Barrier Reef Indo-Pacific humpback and Australian snubfin dolphInfoirnmas tion valid as of Feb 2012 Summary Cumulative pressures Cumulative impacts are of great concern as they act over Diversity space and time to apply a combined effect that is often difficult to quantify and are usually compounding. Such Indo-Pacific humpback dolphin – Sousa chinensis impacts include catchment run-off (creating greater Australian snubfin dolphin – Orcaella heinsohni bioaccumulation of toxins through the food web and Hereafter referred to collectively as 'inshore dolphins'. a delivering bacterias), coastal development (and vessel- Susceptibility related impacts with population growth), climate change Life-history traits of inshore dolphins that make inshore impacts and depletion of food resources through dolphins susceptible to a number of pressures occurring in commercial fishing. These pressures are likely to impact the World Heritage Area include: on the species directly, on their habitats and available prey species. • Being long-lived • Slow growth rate Management in the Great Barrier Reef and • Late maturing adjacent areas in Queensland • Low reproduction rate Legislative management tools for the conservation of • S. chinensis philopatric and O. heinsohni considered to inshore dolphins that occur in the Great Barrier Reef be philopatric b World Heritage Area (the World Heritage Area) include the • Low relative abundance, small group sizes and Great Barrier Reef Marine Park Act 1975; Environment occupying -
Chlorinated Pesticides and Polychlorinated Biphenyls in Marine Tucuxi Dolphins (Sotalia Fluviatilis) from the Cananeia´ Estuary, Southeastern Brazil
The Science of the Total Environment 312 (2003) 67–78 Chlorinated pesticides and polychlorinated biphenyls in marine tucuxi dolphins (Sotalia fluviatilis) from the Cananeia´ estuary, southeastern Brazil Gilvan Takeshi Yoguiaba , Marcos Cesar´ de Oliveira Santos , Rosalinda Carmela Montone, * aLaboratorio´´ˆ de Quımica Organica Marinha, Instituto Oceanografico, ´ Universidade de Sao ˜ Paulo, Praca¸ do Oceanografico ´ 191, Sao˜ Paulo, SP, 05508-120, Brazil bProjeto Atlantis; LABMAR, Departamento de Ecologia Geral, Instituto de Biociencias,ˆ˜ Universidade de Sao Paulo, Rua do Matao˜˜ 321 travessa 14, Sao Paulo, SP, 05508-090, Brazil Received 17 September 2002; accepted 1 March 2003 Abstract The Cananeia´ estuary is an important biological area on the southeast coast of Brazil.In the past, it was impacted by both chlorinated pesticides and polychlorinated biphenyls (PCBs) due to its natural location.The marine tucuxi dolphin (Sotalia fluviatilis) is a top predator in this ecosystem and can be found year round in Cananeia´ estuarine waters that represent an important nursing area for the species.This work investigated chlorinated compounds in the blubber of nine individuals from the Cananeia´ estuary.Residue levels of DDTs (0.541–125 mg gy1 lipid wt.) were the highest, followed by PCBs (0.2–9.22 mg gy1 lipid wt.), mirex (0.014–0.312 mg gy1 lipid wt.), chlordanes (0.001–0.047 mg gy1 lipid wt.), HCHs (-0.003–0.044 mg gy1 lipid wt.), and HCB (n.d.y0.024 mg gy1 lipid wt.). The mean p,p9-DDEyS DDT ratio was approximately 0.8 and is indicative of -
Recent Sightings of Southern Right Whales in Mozambique
Recent sightings of southern right whales in Mozambique. AARON BANKS1,2, PETER BEST3, ANGIE GULLAN4, ALMEIDA GUISSAMULO5, VICTOR COCKCROFT2, KEN FINDLAY6 1Sea Mammal Research Unit, Gatty Marine Laboratory, University of St Andrews, St Andrews, Fife, KY16 8LB, UK. 2Center for Dolphin Studies, P.O. Box 1856, Plettenberg Bay, 6600, South Africa. 3 Mammal Research Institute, University of Pretoria, C/o Iziko South African Museum, P.O. Box 61, Cape Town, 8000, South Africa. 4Dolphin EnCOuntours Interaction & Research Center, Main Campsite, Ponta do Ouro, Mozambique. 5Universidade Eduardo Mondlane, Museu de Historia Naturale, Praça Trevessia Zambeze, 104, Maputo, Mozambique, P.O. Box 257 6MaRe, Oceanography Department, University of Cape Town Private Bag, Rondebosch 7701, South Africa *Contact Email: [email protected] ABSTRACT The presence of southern right whales (Eubalaena australis) along the coast of Mozambique has not been recorded since the close of commercial whaling in 1923. This paper describes ten sightings (5 ‘confirmed’ and 5 ‘probable’) made from land- based observations, boat-based ‘single-day’ surveys as well as land-based and inshore boat-based incidental sightings between 1997 and 2009. The number of sightings increased over the 1997 and 2009 time period and occurred only during August and September. On one occasion, a mother-calf pair was recorded. We also describe an interaction between a southern right whale and humpback whale, which was observed on at least two days. These recent sightings confirm that southern right whales have resumed visiting the coast of Mozambique, albeit in probably very low numbers. Keywords: Southern right whale, Eubalaena australis, Mozambique, distribution, whaling. INTRODUCTION Southern right whales (Eubalaena australis) were once widely distributed in the three ocean basins within the Southern Hemisphere (Perry et al., 1999). -
Australian Humpback Dolphin (Sousa Sahulensis)
Australian Humpback Dolphin (Sousa sahulensis) Figure 1. Suggested geographical range of Australian humpback dolphins (Sousa sahulensis) and locations where studies have occurred within their range (see also Table 1). THE IUCN RED LIST OF THREATENED SPECIES™ Figure 2. Major Ports (including ports under expansion) and mines located along Australian humpback dolphins (Sousa sahulensis) range. 2 Table 1. Best available estimates for areas in which Sousa chinensis abundance/population size has been assessed (it should be noted that although each of these is assumed to be separate subpopulation for this assessment, in most cases, this has not been confirmed through empirical studies). Study Site Approximate Number of Mature State Population Estimate (95%CI) Reference (~Area km2) Density Individuals* Cleveland Bay (310 34 (24-49) – 54 (38-77) 0.11–0.17 17 - 27 (Parra et al. 2006a) km2) Capricorn coast (980 104 (88-120) – 115 (100-130) 0.11-0.12 52 – 58 (Cagnazzi 2013) km2) Curtis coast (510 45 (30-61) – 84 (73-95) 0.09 - 0.16 23 – 42 (Cagnazzi 2013) km2) Great Sandy Strait 137 (121-154) – 162 (157-167) 0.13 – 0.17 68 – 81 (Cagnazzi et al. 2011) (1000 km2) Northern Great Sandy Strait (560 59 (48-72) – 79 (74-84) 0.11 - 0.14 30 – 40 (Cagnazzi et al. 2011) km2) Southern Great Sandy strait (440 68 (59-78)- 78 (65-94) 0.15 - 0.18 34 – 39 (Cagnazzi et al. 2011) km2) Moreton Bay (1315 119 (81-166)–163 (108-251) 0.09 – 0.12 60 – 82 (Corkeron et al. 1997) km2) QLD Weipa region (1100 (I. -
The Indo-Pacific Humpback Dolphin of the Arabian Region: a Status Review Robert M
Aquatic Mammals 2004, 30(1), 111-124, DOI 10.1578/AM.30.1.2004.111 The Indo-Pacific Humpback Dolphin of the Arabian Region: A Status Review Robert M. Baldwin,1 Moth Collins,1 Koen Van Waerebeek,2 and Gianna Minton1 1Oman Whale and Dolphin Research Group, P.O. Box 2531, CPO 111, Sultanate of Oman 2Peruvian Centre for Cetacean Research (CEPEC), Museo de los Delfines, Pucusana, Peru Abstract relative values found in individuals from the Saudi Arabian Gulf coast. Cranial abnormalities were Records of Indo-Pacific humpback dolphin sight- few. Recommendations are made for conserva- ings, strandings, and museum specimens in the tion management-oriented research focusing on Arabian region were compiled and used to review stock identity and status assessments, as well as the distribution and status of this species. Nominal for monitoring of fisheries by-catch, clearer defi- usage of Sousa chinensis (Osbeck, 1765) has been nition of other threats, continued specimen and retained as a pragmatic measure, although the sample collection, and training of local scientists. species present in the region resembles Sousa plumbea (Cuvier, 1828). Little is known about Key Words: Humpback dolphin, Sousa, Arabia, the ecology of this species in the region. Most Persian Gulf, Middle East, Oman, distribution, available information on S. chinensis in the region abundancy conservation originates from the Sultanate of Oman, where this species is among the most commonly recorded Introduction cetaceans; however, there is no absolute measure of abundance for anywhere in the region and the Available information on general and specific status of the species is unknown. Distribution aspects of small cetaceans of the Arabian region, is described for the region to include much of including S.