The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 462 records.
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How to cite
Please be aware, this is an old version of the dataset. Researchers should cite this work as follows:
Gol'din P, Gladilina E, Savenko O, Vishnyakova K, Ivanchikova J, Derkacheva T, Gulak B, Kriukova A, Polyanska K, Neprokin O (2017): Data on cetacean occurrence collected during the project “Identification and initial assessment of cetacean groupings in coastal waters of the north-western Black Sea, Ukrainian sector” funded by ACCOBAMS. v1. Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES). Dataset/Occurrence. http://gp.sea.gov.ua:8082/ipt/resource?r=accobams_2016-2017&v=1.0
Researchers should respect the following rights statement:
The publisher and rights holder of this work is Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES). This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
This resource has been registered with GBIF, and assigned the following GBIF UUID: 24aa45a4-dc45-4138-98e0-513fbedb8344. Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Ocean Biodiversity Information System.
Occurrence; Black Sea; cetaceans; Phocoena; Delphinus; Tursiops; Ukraine; Observation; photo identification; line-transect survey
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This data set is focused on two coastal areas: (a) waters near the Dzharylgach (or Jarilgac in another transcription) Island, and particularly in the Dzharylgach Bay (b) waters near the Danube delta
|Bounding Coordinates||South West [45, 29], North East [46.7, 33.5]|
No Description available
|Subspecies||Phocoena phocoena relicta (Harbour porpoise), Tursiops truncatus ponticus (Bottlenose dolphin), Delphinus delphis ponticus (Common dolphin)|
|Start Date / End Date||2016-06-23 / 2017-12-31|
The project is conducted by the Ukrainian Scientific Center of Ecology of the Sea (UkrSCES) in Odessa, Ukraine, with the expert support of Schmalhausen Institute of Zoology of National Academy of Sciences of Ukraine. The UkrSCES is the main institution of the Ministry of Ecology and Natural Resources of Ukraine in the field of marine ecological research. The project is aimed to increase knowledge about population structure and local distribution of the Black Sea cetaceans, among which there are endangered Black Sea bottlenose dolphins and harbour porpoises and vulnerable common dolphins.
|Title||Identification and initial assessment of cetacean groupings in coastal waters of the north-western Black Sea, Ukrainian sector|
|Funding||ACCOBAMS Secretariat Jardin de l’UNESCO Les Terrasses de Fontvieille MC 98000 Monaco|
|Study Area Description||This study is focused on two coastal areas where the highest densities of cetaceans: (a) waters near the Dzharylgach (or Jarilgac in another transcription) Island, and particularly in the Dzharylgach Bay (b) waters near the Danube delta In addition, the third area potentially important for cetaceans is covered by the study, the Hrigoryevsky Bay, where a summer resident local group of common dolphins was recently discovered.|
|Design Description||Project activities included photo identification boat cruises, a cetacean density survey, observations at sea from the platforms of opportunity, observations and photo identification efforts from coastal platforms and coastal surveys for monitoring of strandings.|
The personnel involved in the project:
The linear transect survey (LTS) were designed according to standard principles of distance sampling (Buckland, 2004; Buckland et al., 2001). The survey platform was the yacht 8.8 m long; two pairs of observers, equipped by binoculars (10x40 and 10x50), changed after 30 minutes, and a dedicated operator recorded the data. The survey was conducted under good weather conditions (sea state less than 2 points of the Beaufort scale, visibility more than 5 km, zero precipitation). Boat speed was on average 9.5 km/h, at maximum 11 km/h. The observer eye height was 2.5 m. Tracks and coordinates were recorded, using the GPS navigator Garmin eTrex 30. Protocols of effort and registrations were filled in during the surveys. Species, group size, distance and angle from the moving boat were recorded at each encounter. In addition, behaviour types were recorded: fast movement, normal movement, feeding, etc., as well as behaviour in relation to the boat: avoiding, attraction or neutral. Individual photo identification was conducted from small boats, with a dedicated person responsible for protocol and coordinate logging. Tracks and coordinates were recorded, using the GPS navigator Garmin eTrex 30. Protocols of effort and registrations were filled in during the surveys.
|Study Extent||two coastal areas: (a) waters near the Dzharylgach (or Jarilgac in another transcription) Island, and particularly in the Dzharylgach Bay (b) waters near the Danube delta warm season (from April to October)|
Method step description:
- LTS (Linear transect surveys) The linear transect survey (LTS) was designed according to standard principles of distance sampling (Buckland, 2004; Buckland et al., 2001). Density and abundance, cluster (group) density were estimated by analytical tools based on detection probability functions for distance sampling (Buckland et al., 2001), using Distance 7.0 software (Thomas et al., 2010). Photo identification. The basis of the method is the principle of individual identification with natural labels on the body and on the dorsal fin in particular (Würsig and Jefferson, 1990; Wilson et al., 1999; Urian et al., 2015).
marine, harvested by iOBIS
|Purpose||The data set was developed according to Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES) under the provisions of the project funded as a part of ACCOBAMS activities.|
|Maintenance Description||As needed|