Baş, Aylin,Erdoğan, Mehmet Akif,Richard Charles Morris, Neil,Yeoman, Kathryn,Humphrey, Ophelie,Gaggioli, Elisa,Roland, Chloe
Seasonal encounter rates and residency patterns of an unstudied population of bottlenose dolphin ( Journal Article
In: Hyla: Herpetological Bulletin, vol. Vol.2016, no. 325, pp. 1-13, 2017.
Abstract | BibTeX | Tags: Antalya Bay, bottlenose dolphin, Distribution, Levantine Sea, residency, tursiops truncatus
@article{,
title = {Seasonal encounter rates and residency patterns of an unstudied population of bottlenose dolphin (},
author = {Baş, Aylin,Erdoğan, Mehmet Akif,Richard Charles Morris, Neil,Yeoman, Kathryn,Humphrey, Ophelie,Gaggioli, Elisa,Roland, Chloe},
year = {2017},
date = {2017-01-01},
journal = {Hyla: Herpetological Bulletin},
volume = {Vol.2016},
number = {325},
pages = {1-13},
abstract = {Insufficient data regarding abundance, distribution and movement patterns of bottlenose dolphins has contributed to lack of effective conservation strategies within the Levantine Sea. It has been inferred that the bottlenose dolphin population has decreased by 30 % in the last 60 years, thus a basin wide research effort on the population is an urgent priority. We present the preliminary results of the first bottlenose dolphin photo-identification study in the northwestern Levantine Sea. 32 boat surveys were conducted from March 2015 to July 2016, totalling 1433 km of survey effort. Current study reported an uneven distribution, high seasonal encounters and varied residency patterns of bottlenose dolphins within the northwestern Levantine Sea. We propose that the northwestern Levantine Sea, specifically the coastal waters of Antalya Bay, indeed is an important bottlenose dolphin habitat and adjacent waters may be of similar significance. Of the 51 individuals catalogued, 13 were re-sighted in both years. Encounter rates varied seasonally, with a peak in spring of 12 groups and 100 individuals per 100 km. Dolphin presence was not detected during autumn and winter. While seasonal, visitor and transient dolphins were reported, no year-round residency was documented. Incidental observations of visible starvation signs and skin parasites suggested individual dolphins in this region could be under anthropogenic stressors. The results reported here highlight the importance of baseline information on encounter rate, distribution and residency pattern as they have a key role on the assessment of population statues and the threats they are facing. Future studies with annual survey effort, have to be continued in the northwestern Levantine Sea and its adjacent waters.},
keywords = {Antalya Bay, bottlenose dolphin, Distribution, Levantine Sea, residency, tursiops truncatus},
pubstate = {published},
tppubtype = {article}
}
Insufficient data regarding abundance, distribution and movement patterns of bottlenose dolphins has contributed to lack of effective conservation strategies within the Levantine Sea. It has been inferred that the bottlenose dolphin population has decreased by 30 % in the last 60 years, thus a basin wide research effort on the population is an urgent priority. We present the preliminary results of the first bottlenose dolphin photo-identification study in the northwestern Levantine Sea. 32 boat surveys were conducted from March 2015 to July 2016, totalling 1433 km of survey effort. Current study reported an uneven distribution, high seasonal encounters and varied residency patterns of bottlenose dolphins within the northwestern Levantine Sea. We propose that the northwestern Levantine Sea, specifically the coastal waters of Antalya Bay, indeed is an important bottlenose dolphin habitat and adjacent waters may be of similar significance. Of the 51 individuals catalogued, 13 were re-sighted in both years. Encounter rates varied seasonally, with a peak in spring of 12 groups and 100 individuals per 100 km. Dolphin presence was not detected during autumn and winter. While seasonal, visitor and transient dolphins were reported, no year-round residency was documented. Incidental observations of visible starvation signs and skin parasites suggested individual dolphins in this region could be under anthropogenic stressors. The results reported here highlight the importance of baseline information on encounter rate, distribution and residency pattern as they have a key role on the assessment of population statues and the threats they are facing. Future studies with annual survey effort, have to be continued in the northwestern Levantine Sea and its adjacent waters.
Rommel,S.
Osteology of the bottlenose dolphin Journal Article
In: Academic Press, Inc?, no. 456, pp. 29 -49, 1990.
Abstract | BibTeX | Tags: bottlenose dolphin, dolphin, dolphins, osteology, stranded, tursiops truncatus
@article{,
title = {Osteology of the bottlenose dolphin },
author = {Rommel,S.},
year = {1990},
date = {1990-01-01},
journal = {Academic Press, Inc?},
number = {456},
pages = {29 -49},
abstract = {This chapter describes some features of the skeleton of the bottlenose dolphin, Tursiops truncatus. The terminology I use generally follows that of Flower (1867, 1885). I have described the osteological features by examining specimens in the collection of the United States National Museum (USNM) (Table 1). Additional specimens were examined to verify controversial or questionable features. Most of the specimens were dolphins that stranded along the coasts of North Carolina and Virginia (see Mead and Potter, Chapter 9, this volume). In the figures, specific bone names are capitalized; other features are in lower case. In the text, specific bone names are in boldface type (e.g., orbitosphenoid); commonly used alternate names are in parentheses. Distinct features of the skull that are self-explanatory (e.g., postorbital process of the frontal) are not described in the text unless clarification is required. Cranial nerves and digits are referred to by Roman numerals.},
keywords = {bottlenose dolphin, dolphin, dolphins, osteology, stranded, tursiops truncatus},
pubstate = {published},
tppubtype = {article}
}
This chapter describes some features of the skeleton of the bottlenose dolphin, Tursiops truncatus. The terminology I use generally follows that of Flower (1867, 1885). I have described the osteological features by examining specimens in the collection of the United States National Museum (USNM) (Table 1). Additional specimens were examined to verify controversial or questionable features. Most of the specimens were dolphins that stranded along the coasts of North Carolina and Virginia (see Mead and Potter, Chapter 9, this volume). In the figures, specific bone names are capitalized; other features are in lower case. In the text, specific bone names are in boldface type (e.g., orbitosphenoid); commonly used alternate names are in parentheses. Distinct features of the skull that are self-explanatory (e.g., postorbital process of the frontal) are not described in the text unless clarification is required. Cranial nerves and digits are referred to by Roman numerals.