Natural markings of Cuvier's beaked whale Ziphius cavirostris in the Mediterranean Sea

@article{Rosso2011NaturalMO,
  title={Natural markings of Cuvier's beaked whale Ziphius cavirostris in the Mediterranean Sea},
  author={Massimiliano Rosso and Marco Ballardini and Aur{\'e}lie Moulins and Maurizio Würtz},
  journal={African Journal of Marine Science},
  year={2011},
  volume={33},
  pages={45 - 57}
}
Errors in analysis using natural marks have been recognised since the early development of mark-recapture techniques. In this nine-year study, the mark types present on Cuvier's beaked whales Ziphius cavirostris in the Mediterranean Sea were categorised in order to assess the reliability of natural marks for long-term photo-identification studies. Mark prevalence, abundance and gain/loss rates among age/sex classes were investigated. Results showed that Cuvier's beaked whales were extensively… 
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References

SHOWING 1-10 OF 52 REFERENCES
THE USE OF NATURAL MARKINGS IN STUDIES OF LONG‐FINNED PILOT WHALES (GLOBICEPHALA MELAS)
TLDR
To identify which mark types are reliable and which could improve the method, fifteen mark types, and their distribution within the population, were described and the rates of gain and loss of each mark type were calculated and the variability in visibility was investigated.
PHOTOGRAPHIC IDENTIFICATION OF NORTHERN BOTTLENOSE WHALES (HYPEROODON AMPULLATUS): SOURCES OF HETEROGENEITY FROM NATURAL MARKS
The use of natural marks in capture-recapture studies can lead to unequal capture probabilities. This paper examined a catalog of northern bottlenose whale (Hyperoodon ampullatus) photographs from
Aspects of the distribution of Cuvier's beaked whale (Ziphius cavirostris) in relation to topographic features in the Pelagos Sanctuary (north-western Mediterranean Sea)
Cuvier's beaked whale is a poorly-known species. It has been considered common since 1980 in the Pelagos Sanctuary (north-western Mediterranean Sea), but it has hardly been studied, chiefly due to
SITE FIDELITY, ASSOCIATIONS, AND MOVEMENTS OF CUVIER'S (ZIPHIUS CAVIROSTRIS) AND BLAINVILLE'S (MESOPLODON DENSIROSTRIS) BEAKED WHALES OFF THE ISLAND OF HAWAI‘I
TLDR
Site fidelity, patterns of association, and movements of two species, Cuvier's and Blainville's beaked whales, were assessed using a 21-yr photographic data set from the west coast of the island of Hawai‘i, suggesting long-term site fidelity to the area.
Sighting characteristics and photo-identification of Cuvier’s beaked whales (Ziphius cavirostris) near San Clemente Island, California: a key area for beaked whales and the military?
TLDR
The basin west of San Clemente Island may be an important region for Cuvier’s beaked whales, and also one which affords an unusual opportunity to collect detailed data on this species, given its status as an active military range.
The abundance and distribution of bottlenosed dolphins (Tursiops truncatus) in Doubtful Sound, New Zealand
TLDR
Photographic identification and standardized zigzag surveys were used to study the distribution and abundance of bottlenose dolphins in Doubtful Sound, New Zealand, and the majority of the dolphins in the catalogue were found in each survey period, indicating their residency in the fiord.
Biological aspects of Cuvier’s beaked whale (Ziphius cavirostris) recorded in the Croatian part of the Adriatic Sea
TLDR
The paper describes two stranded ziphiids from Croatia that were confirmed to be Cuvier’s beaked whales from analysis of mitochondrial DNA sequences and osteological features and are the northernmost findings of this species in the Adriatic Sea.
AN ASSESSMENT OF CHANGES WITH TIME IN THE MARKING PATTERNS USED FOR PHOTOIDENTIFICATION OF INDIVIDUAL SPERM WHALES, PHYSETER MACROCEPHALUS
TLDR
Most individuals identified by us possess at least a few characteristic marks and, therefore, changes of the type observed in this study are unlikely to severely affect their recognizability, and population sizes calculated from these data may be overestimated.
TEMPORAL VARIABILITY IN FEATURES USED TO PHOTO‐IDENTIFY HUMPBACK WHALES (MEGAPTERA NOVAEANGLIAE)
TLDR
It is suggested that photographs combining the dorsal fin and the caudal peduncle provide the most consistent way to reidentify humpback whales, particularly calves following weaning.
Errors in identification using natural markings: rates, sources, and effects on capture-recapture estimates of abundance
The results of a double-marking experiment using natural markings and microsatellite genetic markers to identify humpback whales (Megaptera novaeangliae) confirm that natural markings are a reliable
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