[MARMAM] New publication on the body size and variation of the Black Sea bottlenose dolphins

Pavel Gol'din pavelgoldin412 at gmail.com
Thu Feb 19 02:29:26 PST 2015


Dear colleagues,

We are pleased to announce the following new publication:

Gol’din, P., Gladilina, E. 2015. Small dolphins in a small sea: Age, growth
and aspects of life history of the Black Sea common bottlenose dolphins
(Tursiops truncatus). Aquatic Biology 23(2): 159–166.

We provide first data on the life span, growth and seasonal aspects of the
life history of Black Sea bottlenose dolphins Tursiops truncatus in the
wild and compare these with historical data and conspecific populations in
other geographical regions. Average life span is 20 to 32 yr; the oldest
record is 41 yr. The reproductive season lasts at least from February to
September or October and includes the coldest months of the year (February
and March). Average adult body lengths are 240 ± 14 cm for females and 255
± 10 cm for males. Rapid early body growth ceases by 3 to 4 yr. Two morphs,
one large (offshore) and one small (coastal), possibly co-exist in the
Black Sea. The larger morph may include winter-breeding migrants or
immigrants from the Mediterranean Sea. The small coastal form is similar in
body size and growth patterns to coastal populations in the eastern
Mediterranean region and the Gulf of Mexico, but is characterized by early
growth to maturity and small asymptotic body size. Small-sized dolphin
populations in enclosed water bodies can be treated as an example of the
‘island rule’, and their dwarfism may hypothetically be explained as an
effect of smaller prey size.

It can be downloaded at:
http://www.int-res.com/abstracts/ab/v23/n2/p159-166/ (open access)

For the comments, you are welcome to contact me at: pavelgoldin412 at gmail.com


Regards,
Pavel Gol'din
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