Translation 3261

FISHERIES AND MARINE SERVICE
r^^IICTïlVES
Translation Series No. 3261
Reproduction of the Siberian Redside Sucker (Catostomus catostomus
rostratus
Tilesius) in'the Kolyma.River
by Yu.A. Shilin
Original title:
Razmnozhenie chukuchana - Catostômus catostômus rostratus
Tilesius) vr; Kolyme
From:
Izvestiya Tikhookeanskogo Nauchno-Issledovatel!skogo Instituta
Rybnogo Khozyaistva i Okeanografii (TINRO) (Proceedings of.the
Pacific Scientific Research Institute of Marine Fisheries and
Oceanography), 86(14) . 131-133, 1973
Translated by the Translation Bureau(LHM)
Multilingual Services Division
Department of the Secretary of'State of Canada
Department of the Environment
Fisheries and Marine'Service
Pacific'Biological Station
Nanaimo, B.C.
1974
5
pages typescript
,
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AUTHOR - AUTEUR
Yu. A. Shilin
TITLE M ENGLISH - TITRE ANGLAIS
Reproduction of the Siberian Redside Sucker (Catostomus
catostomus rostratus) (Tilesius) in the Kolyma River
TITLE IN FOREIGN LANGUAGE (TRANSLITERATE FOREIGN CHARACTERS)
TITRE EN LANGUE ÉTRANGÉRE (TRANSCRIRE EN CARACTÈRES ROMAINS)
Razmnozhenie chukuchana Catostomus catostomus rostratus
(Tilesius) v r. Kolyme
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Izvestiya Tikhookeanskogo nauchno-issledovaterskogo instituta
rybnogo khozyaistva i okeanografii
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Proceedings of the Pacific Scientific Technical Institute of
Fisheries and Oceanography
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Izvestiya Tikhookeanskogo nauchno-issledovatel T skogo instituta rybnogo
khozyaistva i okeanografii (Proceedings of the Pacific Scientific
Technical Institute of Fisheries and Oceanography), 1973, Vol. 86, No. 14,
pp. 131 - 133. (USSR)
Reproduction of the Siberian Redside Sucker (Catostomus catostomus
(Tilesius) in the Kolyma River
rostau)
LitVqpiTED TUCifiLialON
FC.ir ieifOrrn& irn
by Yu. A. - Shilin
REVISU
ultdeemoi
The information on the biOlogy of the Siberian redside sucker in
our literature (Berg, 1949; Kirillov, 1955; Novikov, 1966; Novikov and
Streletskaya, 1966; Shilin, 1971) still does not throw sufficient light
on all of its life processes. Besides, the Siberian redside sucker is
one of the most abundant species in the Kolyma R. and, in our view, could
be a promising subject for acclimation in the basins of the upper and
middle courses of other rivers of the Soviet Union.
This article is based on the results of observations carried out
in 1966 - 1969, during which period 979 sex glands of the redside sucker
were examined, histological study of the sex glands of 30 specimens of
the fish was conducted, and experiments in the aritificial fertilization
* Numbers in the right-hand margin are those of pages in the original. - Trans.
131*
2
of the roe were also completed.
Kolyma redside sucker males first become sexually mature at the age
of 6+, upon reaching a standard length of 28-30 cm, while the females reach
sexual maturity at 7+ and a length of 30-32 cm (Shilin, 1971).
'
The absolute fecundity of the Siberian redside sucker changes with
age, and here an inverse relationship between fecundity and the age, length
and weight of the fish (table 1) has been noted. The absolute fecundity of
the redside sucker in the basin of the middle course of the Kolyma R. taken
Table 1
Fecundity of redside suckers in the basin of the middle course of the
Kolyma R.
Ta6acnria 1
11
$o^
acr
^^7
no,tjOHHYOCT6 yyKy4BHa u 6aCCeNHB cpe};Hero 7e4eHH51 p. I{OlIblMbl
uçûâtio>i in ^ Vera^q ^ Fuctua^rC9
p c1<< R
I oneat^ +e
1(o:ieGaxue
AR,
i mula 1
i,eca r
std. cae *JPnyth d , c .^c le
i n we iy ht ,
i vera^,g ^
veraga l FJuciuation in
LI1eA
K one Gaxue
CpeAetu^
q :1oaoalt^no;toci[rocrit
ucc, r
^e cu>t d i f y ^
c ^ f., 9
fé1,^`dit^
799
600-960
36,86
35 ,0-39,0
8}
848
615-1030
39,40
36,5-42,0
9-}872
800-1 040
40,20
39,5-41,5
10-{908
855-995
40,70
40,0-41,0
11+
1 007
995-1 020
42,25
42,0-42,5
12•-k
Average -fecundity
CpeAHSIn n10*,(o9nTOCTb
no nce ^c no3pacTHht^c rp}'nnant :For ail aye groupe
15 655-51 625
13 200-93 888
19 907-62 3_ï7
11 360-39 129
28 810-29 110
II'
P
35 490
31637
30 222
28 427
28 960
11
18
7
3
2
33603
41
* RnHita OT Ha=Ia.7la pwna po i;ofiua ecutyilnoro noxpo:!a.
* Length from tip of snout to end of scale covering.
on the basis of an investigation of 41 specimens of the fish, varies from
11,360 to 93,888 eggs, for an average of 33,603. In the lower reaches of
the Kolyma, the absolute fecundity of the Siberian redside sucker varies
between 29,800 and 59,800 eggs, for an average of 42,850. The fecundity of
the Kolyma redside sucker approaches that of the American redside sucker,
132
3
which has from 17,525 to 60,307 eggs, for an average of 35,006 (Novikov, 1966).
A study of histological sections from the sexual glands of maturing
Siberian redside sucker females showed that the ovicells were in various
phases of development. We noted ovicells in the slow, protoplasmic and
trophoplasmic periods of growth. Asynchrony in the development of older
generation oocytes were observed throughout the maturation period.
Fig. 1
gives a picture of the asynchrony in the development of the oocytes in a
female redside sucker ovary.
The asynchrony in development of oocytes in
intermittently-spawning fish provides grounds for supposing that the redside
sucker spawns intermittently.
David Behmer (1965) indicates that no residual roe was noted after
spawning in the redside sucker of the Des Moines River.
he states that some females spawn twice.
At the same time,
Our research in 1966-1969 during
the spawning period revealed many females with partially spawned roe (up to
50%).
Individuals with partly spawned roe were found in catches over a
very brief period (for 8-10 days). All this confirms our supposition as
to the intermittent nature of spawning in the Kolyma redside sucker.
Thus, the results of our research disprove the idea which currently
exists in ichthyology, to the effect that there are no intermittently-spawning
fishes among the fish fauna of water bodies located in high latitudes.
According to A. S. Novikov's data (1966), the redside sucker goes
to spawn at the end of May - beginning of June, in those branches of the
Kolyma R. that have a swift current and a sandy-pebbly bottom. Spawning
takes place at a depth of 2-3 m. In the basin of the middle course of the
Kolyma, we found males and females with flowing genital products in
nid-June in streams of the first order, with pebbly bottoms of average
P st c. 1. I'ltcroaornticcxurt cpea sut^tnsstta r,oa;,t.Nscroro ayt(^•t:atta (T3F11f[W oijouttTt,t n ueptto'Re ntaaoro Pocra npoTOnaa3^tartt+echoro Il rpoç)ostjtas`ta•rmtect.oro pocTa).
Histological section of a Kolyma redside sucker ovary (oocytes
Fig. 1.
in the slow, protoplasmic and trophoplasmic periods of development can
be seen).
dimensions.
This is the period when maximum water levels and currents of
great swiftness were observed. It is essential to note that the spawning
periods of the redside sucker in the middle part of the Kolyma are very
short (15-20 days). This is determined by the peculiarity of the hydrological
regime of this section of the river. Experiments in artificial fertilization
of the roe showed that it does not adhere to the substrate. The fertilized
eggs sank to the bottom and moved around freely there with the fluctuations
of the water.
5
The presence in spawning period catches of 10-12 year-old females
with genital products at the second stage of maturity provides grounds for
assuming that part of the females skip a regular spawning. It is possible
that this is connected with the migration of a population.
LITERATURE
1. Berg, L. S. 1949.
Countries. 4th ed., vol. II.
Freshwater Fishes and those of Adjoining
2. Kirillov, F. N. 1955. Fishes of the Indigirka River.
of VNIORKh*, vol. 35, Pishchepromizdat.
3. Novikov, A. S. 1966.
Proceedings
Fishes - of the Kolyma River. Moscow, "Nauka".
4. Novikov, A. S. and Streletskaya, E. L. 1966. Information on the
Biology of the Siberian Redside Sucker. - Bull , of the Moscow Naturalists'
Society. Biology div., 71, 1.
5. Shilin, Yu. A. 1971. The Reproductive System of the Fishes of
the Middle Kolyma. - Ekologiya , No. 3.
TIHTEPATYPA
C. 1949. Phi6bt npecubtx BOR H coupeenbubix malt. 14311. 4, T. H.
I. Bepr
BHHOPX, T. 35, Hume2. KlIpli.TIZOB (1.). H. 1955. Pleim pexii
npomumar.
H o B II IC o n.A. C. 1966. PLitibi peKit Konbimbl. M. «HayKa».
1966.' MaTeimanbi no 6iio.lornit cn6iipcizoro
eux a a
411 HODHROB A. C., CT p
MOCIC013CICOCO 061110.CTBB 'term -re-read"' 111)11p0,11131. OT.11. 6110:1., 71, I.
*yp5. III u H II 10. A. 1971. BocuponauoRuTem,iian ciic -rema pb16 epe..uneii
Han eDKoziormi», el 3.
. Behmer D. I. 1965. Spawning periodicity of the river carpsucker, carpiodes carpio.
Proc. Iowa Acad. Sel. Vol. 72.
e.
REPRODUCTION OF CHUKUCHANA— CATOSTOMUS CATOSTOMUS
ROSTRATUS (TILESIUS) IN TFIE KOLYMA RIVER
U. A. Shilin
Summary .
The Kolymskaya chuktichana males become at fist puberty at the age 6+ at the
length AD 23-30 cm. and the females— at the age 7+ at the lentil 30-32 cm.
The absolute fecundity fluctuates within the limits of 11 369-93 890 eggs. There is
the retrospective dependence in the change of fecundity with the age.
The microscopical studying of milts and ovaries points to the portional character
of chukuchana spawning. In this connection the existing notion of the lack of the portional spawning of fishes at the high latitudes is placed under the doubt.
*
The All—Union Scientific Research Institute of Lake and River Fisheries. —
Trans.