The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea
При исследовании радиальных срезов раковин Chamelea gallina (Linnaeus, 1758) выявлены годичные слои роста, что позволило определить возраст моллюсков и продолжительность их жизни. Максимальный возраст моллюсков, определенный по эталонным экземплярам — 9 лет. Полученные данные сопоставлены с известны...
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Інститут зоології ім. І. І. Шмальгаузена НАН України
2003
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| Цитувати: | The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea / N. A. Boltacheva, S. A. Mazlumyan // Вестн. зоологии. — 2003. — Т. 37, № 3. — С. 71-74. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1859988296133771264 |
|---|---|
| author | Boltacheva, N.A. Mazlumyan, S.A. |
| author_facet | Boltacheva, N.A. Mazlumyan, S.A. |
| citation_txt | The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea / N. A. Boltacheva, S. A. Mazlumyan // Вестн. зоологии. — 2003. — Т. 37, № 3. — С. 71-74. — англ. |
| collection | DSpace DC |
| description | При исследовании радиальных срезов раковин Chamelea gallina (Linnaeus, 1758) выявлены годичные слои роста, что позволило определить возраст моллюсков и продолжительность их жизни. Максимальный возраст моллюсков, определенный по эталонным экземплярам — 9 лет. Полученные данные сопоставлены с известными для популяции этого вида из Средиземного моря. Показано, что при значительно различающихся темпах роста моллюсков из разных частей ареала, предельные размеры раковины близки.
Annual growth rings were found in the study of shell sections of Chamelea gallina (Linnaeus, 1758), from which the age and the longevity of Chamelea gallina were determined. Based on standard individuals, maximum age of molluscs was assessed as 9 years. Results obtained are compared with those known for Mediterranean population of the same species. It was also found that Chamelea gallina collected from different localities of the same area have comparable maximum shell length but considerably differ in the growth rate.
|
| first_indexed | 2025-12-07T16:30:13Z |
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UDC 594:591.1(262.5)
THE GROWTH AND LONGEVITY OF CHAMELEA GALLINA
(MOLLUSCA, VENERIDAE) IN THE BLACK SEA
N. A. Boltacheva, S. A. Mazlumyan
Institute of Biology of the Southern Seas, Nakhimov av., 2, Sevastopol, 99011 Ukraine
E-mail: mazlum@sevpochta.com.ua
Accepted 14 March 2002
The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea. Boltacheva N. A.,
Mazlumyan S. A. — Annual growth rings were found in the study of shell sections of Chamelea gallina
(Linnaeus, 1758), from which the age and the longevity of Chamelea gallina were determined. Based
on standard individuals, maximum age of molluscs was assessed as 9 years. Results obtained are
compared with those known for Mediterranean population of the same species. It was also found that
Chamelea gallina collected from different localities of the same area have comparable maximum shell
length but considerably differ in the growth rate.
Ke y wo r d s: Mollusca, Veneridae, Chamelea gallina, Black Sea, growth, longevity, maximum age.
Ðîñò è ïðîäîëæèòåëüíîñòü æèçíè Chamelea gallina (Mollusca, Veneridae) â ×åðíîì ìîðå. Áîëòà÷å-
âà Í. À., Ìàçëóìÿí Ñ. À. — Ïðè èññëåäîâàíèè ðàäèàëüíûõ ñðåçîâ ðàêîâèí Chamelea gallina
(Linnaeus, 1758) âûÿâëåíû ãîäè÷íûå ñëîè ðîñòà, ÷òî ïîçâîëèëî îïðåäåëèòü âîçðàñò ìîëëþñêîâ
è ïðîäîëæèòåëüíîñòü èõ æèçíè. Ìàêñèìàëüíûé âîçðàñò ìîëëþñêîâ, îïðåäåëåííûé ïî ýòàëîí-
íûì ýêçåìïëÿðàì — 9 ëåò. Ïîëó÷åííûå äàííûå ñîïîñòàâëåíû ñ èçâåñòíûìè äëÿ ïîïóëÿöèè
ýòîãî âèäà èç Ñðåäèçåìíîãî ìîðÿ. Ïîêàçàíî, ÷òî ïðè çíà÷èòåëüíî ðàçëè÷àþùèõñÿ òåìïàõ ðîñ-
òà ìîëëþñêîâ èç ðàçíûõ ÷àñòåé àðåàëà, ïðåäåëüíûå ðàçìåðû ðàêîâèíû áëèçêè.
Êëþ÷åâûå ñ ëîâ à: Mollusca, Veneridae, Chamelea gallina, ×åðíîå ìîðå, ðîñò, ïðîäîëæèòåëü-
íîñòü æèçíè, ìàêñèìàëüíûé âîçðàñò.
Introduction
The bivalve Chamelea gallina (Linnaeus, 1758) is mass species commonly found at sandy shoals, it is
also the major component of Venus * sand biocenosis of the Black Sea. Many aspects of the biology of C. gal-
lina have been thoroughly studied (Kisseleva, 1981; Scarlato, Starobogatov, 1972; Chukhchin, 1965), ho-
wever there is deficiency of the knowledge about longevity, age and growth rate of the mollusc. In addition
to the Black Sea, this species also inhabits the Mediterranean Sea and the Atlantic Ocean. Therefore, com-
parison between the longevity and growth rate of molluscs collected from different sites of the distribution
area was the aim of the reported study.
Material and methods
Molluscs for the study were collected during February-March 1992 after they had been dislodged and
washed ashore due to storm events in Omega Bay (Black Sea) with the greatest depth about 19 m. The ante-
rior-posterior length (L) of the shells was measured with vernier calliper to the nearest 0.1 mm. Shell valves
were cut from the umbo to the ventral margin along the axis of maximum growth (radial section). The sur-
face of the sections was polished and examined under a light microscope. Sections got from 144 molluscs
were studied.
Results
The examination of the radial sections has shown that dark and light growth zones
distinctly alternate. The dark bands cross medium and external layers of the shell, gra-
dually sloping in underlying parts of the valve and emerging on the surface in the groo-
Vestnik zoologii, 37(3): 71–74, 2003
© N. A. Boltacheva, S. A. Mazlumyan, 2003
* From Venus gallina, the former generic name of C. gallina.
ves between concentric ribs. Such alternation is usually associated with a delay of a shell
growth and has been reported for a number of species (Zolotarev, 1989). However,
growth delay periodicity is usually species-specific. A. hypothesis has been advanced
(Mazlumyan, Valovaya, 1994) that this structure of the shell forms in the molluscs de-
pending on season. For C. gallina from the western Mediterranean the periodicity of
the inhibited growth has been acknowledged as annual (Ramon, Richardson, 1992).
Therefore, the alternation of dark and light growth zones found in this species can be
used in determining age of the clam. In the Black Sea C. gallina have breading season
in July–August (Chukhchin, 1965). For our study molluscs were collected during
February–March; therefore individuals described as fry, should probably be of age
about 6–8 months, yearling — 1.5 yr. old and two-year old — 2.5 yr. old, etc.
Collective linear growth is described by two growth curves: an empirical curve,
derived from the obtained data (fig. 1, À) and Von Bertalanffy growth curve (fig. 1, Â),
based on Hohendorf method (Hohendorf, 1966). It is Von Bertalanffy growth curve
that describes the growth of C. gallina most reliably, with the difference between empir-
ical and computed estimates (Lt), deviating ± 2.99 % (fig. 1, Â):
Lt = 27.25 (1 – e -0.609 (t + 0.143))
The equation consists of an independent variable (individual age, yr, t), a depend-
ent variable — (shell length, mm, Lt) and three parameters — L ; K; t0. Ê equal 0.609
describes annual decrease of the shell's growth rate (Walford, 1946). Given Ê = 0.609,
annual increment of the shell's length is 55% last year's increment (Hohendorf, 1966).
In C. gallina, annual shell length increase declines with time: deceleration of the growth
manifests itself on both the empirical and computation-based curves (fig. 1).
On the Von Bertalanffy growth curve it can be seen as beginning from the dot
which corresponds to age of five years (fig. 1, Â). Comparison with the empirical curve
(fig. 1, À) evinces correspondence between values of the length (Lt), closely approxi-
mating maximum physiological length possible, L = 27.25 mm, — an asymptote of a
Von Bertalanffy growth curve, and the age of 5 years.
The assessment of the longevity C. gallina inhabiting in the Black Sea has pro-
duced interesting results. Maximum age of clams in the examined sample was 9 years
8
Fig. 1. C. gallina. Growth curve: A — determined from internal growth rings; B — Von Bertalanffy growth
equation.
Ðèñ. 1. C. gallina. Êðèâûå ðîñòà: À — ýìïèðè÷åñêàÿ êðèâàÿ, ïîñòðîåííàÿ íà îñíîâàíèè ïîëó÷åííûõ
äàííûõ î âíóòðåííèõ ñëîÿõ ðîñòà; Â — êðèâàÿ ðîñòà Áåðòàëàíôè.
72 N. A. Boltacheva, S. A. Mazlumyan
0
5
10
15
20
25
30
0 1 2 3 4 5 6 7 8 9 10
Age
si
z
e
(m
m
)
0
5
10
15
20
25
30
0 1 2 3 4 5 6 7 8 9 10
Age
si
z
e
(
m
m
)
L?
L? = 27. 25 ìì
Ê = 0. 609
t0 = - 0. 143
À Â
8
8
8
– 0.431
(1 individual). At the same time, the greatest shell length measured in molluscs under
the present study was 31 mm, vs. 43 mm formerly reported (Scarlato, Starobogatov,
1972). It is known that maximum age determined from standard individuals may vary
depending on the scope of the sample. Then, it is possible to evaluate the longevity
using statistics obtained based on Von Bertalanffy equation (Zolotarev, 1989):
T = –[ln (1–Lm/L )] / Ê,
where Ò is the age of the largest individual Lm — its length, Ê and L are equation
parameters; the value 27.10 mm, the average maximum length computed, for example,
through measuring 7 molluscs can also be used as Lm. Maximum age resulted from this
computation equals 9 years, i. e. the maximum age of clams included in the sample.
This phenomenon can be explained by similarity between the empirical and the com-
putation-based curve.
It is noteworthy that for Mediterranean C. gallina maximum age was estimated 4 years.
Shell length measured in this age group averages 27 mm (Ramon, Richardson, 1992).
C. gallina from the Black Sea reached this length at the age of 8 years (fig. 1). The dif-
ference between growth rate of C. gallina from the two seas may be due to dif-ference
in the environmental temperature, which is 7–28°Ñ in the Mediterranean near the coast
of Spain, and 4–21°Ñ in the Black sea (Omega Bay) (Ramon, Richardson, 1992; Pav-
lova, Ovsianiy, 1999). The marked difference between the longevity maximums in C. gal-
lina of the same length from the two populations evaluated through measuring standard
individuals may probably be due to that maximum longevity of molluscs of this species
is predertermined by the length, not by the age. This phenomenon has been document-
ed for molluscs and other hydrobionts (Valovaya, 1982; Vigman, 1979; Nikolsky, 1965).
The obtained data add to the knowledge having been accumulated about the bio-
logy of C. gallina. In particular, in the Black Sea the clams grow sex mature having
reached the length 8–14 mm (Chukhchin, 1965) that corresponds to dimensions cha-
racteristic of the first but not of the second year of life, as it was formerly believed.
Conclusions
On radial sections of the shells of Black Sea C. gallina annual growth rings are visi-
ble. The curve of C. gallina collective linear growth is well described by Von Bertalanffy
equation; where it is K = 0.609; L = 27.25 mm; t0 = –0.143. Maximum longevity as-
sessed using standard individuals and Von Bertalanffy equation is 9 years for the Black
Sea. Molluscs taken from different points of the same area have similar maximum shell
length, though their growth rates differ considerably. In the Black Sea C. gallina may
breed during the first year of life.
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ðàçìíîæåíèÿ Venus gallina L. (Lamellibranchiata) â ×åðíîì ìîðå] // Benthos. — Kyiv : Nauk.
dumka, 1965. — P. 15–23. — Russian.
Hohendorf K. Eine Discussion der Bertalanffy — Functionen und ichre anwendung zur Charakterisierung des
Wasktums von Fischen // Kieler Meer. ForC. — 1966. — 22, N 1. — S. 70–97.
Kisseleva M I. The benthos of soft bottom sediment of the Black Sea [Áåíòîñ ðûõëûõ ãðóíòîâ ×åðíîãî
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73The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea
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8
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74 N. A. Boltacheva, S. A. Mazlumyan
|
| id | nasplib_isofts_kiev_ua-123456789-3886 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0084-5604 |
| language | English |
| last_indexed | 2025-12-07T16:30:13Z |
| publishDate | 2003 |
| publisher | Інститут зоології ім. І. І. Шмальгаузена НАН України |
| record_format | dspace |
| spelling | Boltacheva, N.A. Mazlumyan, S.A. 2009-07-10T13:42:27Z 2009-07-10T13:42:27Z 2003 The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea / N. A. Boltacheva, S. A. Mazlumyan // Вестн. зоологии. — 2003. — Т. 37, № 3. — С. 71-74. — англ. 0084-5604 https://nasplib.isofts.kiev.ua/handle/123456789/3886 594:591.1(262.5) При исследовании радиальных срезов раковин Chamelea gallina (Linnaeus, 1758) выявлены годичные слои роста, что позволило определить возраст моллюсков и продолжительность их жизни. Максимальный возраст моллюсков, определенный по эталонным экземплярам — 9 лет. Полученные данные сопоставлены с известными для популяции этого вида из Средиземного моря. Показано, что при значительно различающихся темпах роста моллюсков из разных частей ареала, предельные размеры раковины близки. Annual growth rings were found in the study of shell sections of Chamelea gallina (Linnaeus, 1758), from which the age and the longevity of Chamelea gallina were determined. Based on standard individuals, maximum age of molluscs was assessed as 9 years. Results obtained are compared with those known for Mediterranean population of the same species. It was also found that Chamelea gallina collected from different localities of the same area have comparable maximum shell length but considerably differ in the growth rate. en Інститут зоології ім. І. І. Шмальгаузена НАН України Краткие сообщения The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea Рост и продолжительность жизни Chamelea gallina (Mollusca, Veneridae) в Черном море Article published earlier |
| spellingShingle | The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea Boltacheva, N.A. Mazlumyan, S.A. Краткие сообщения |
| title | The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea |
| title_alt | Рост и продолжительность жизни Chamelea gallina (Mollusca, Veneridae) в Черном море |
| title_full | The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea |
| title_fullStr | The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea |
| title_full_unstemmed | The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea |
| title_short | The Growth and Longevity of Chamelea gallina (Mollusca, Veneridae) in the Black Sea |
| title_sort | growth and longevity of chamelea gallina (mollusca, veneridae) in the black sea |
| topic | Краткие сообщения |
| topic_facet | Краткие сообщения |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/3886 |
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