Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae)
The olfactory organ in decapod crustaceans is represented by the outer antennular flagellum with specialized sensilla called aesthetascs. Characteristic structures of the lateral antennular flagellum with olfactory setae in larvae, juveniles and adults of grass shrimp Pandalus kessleri Czerniavski,...
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Інститут зоології ім. І.І. Шмальгаузена НАН України
2010
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| Cite this: | Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae) / N.K. Blinova, S.A. Cherkashin // Вестник зоологии. — 2010. — Т. 44, № 5. — С. 413–419. — Бібліогр.: 14 назв. — англ. |
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| citation_txt | Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae) / N.K. Blinova, S.A. Cherkashin // Вестник зоологии. — 2010. — Т. 44, № 5. — С. 413–419. — Бібліогр.: 14 назв. — англ. |
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| description | The olfactory organ in decapod crustaceans is represented by the outer antennular flagellum with specialized sensilla called aesthetascs. Characteristic structures of the lateral antennular flagellum with olfactory setae in larvae, juveniles and adults of grass shrimp Pandalus kessleri Czerniavski, 1878 are described.
Орган обоняния десятиногих ракообразных представлен наружными жгутами антеннул, с расположенными на них специализированными чувствительными щетинками — эстетасками. Описаны особенности строения латерального жгута антеннулы с обонятельными щетинками у личинок, молоди и половозрелых особей травяной креветки — Pandalus kessleri Czerniavski, 1878.
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UDC 595.384:591.486
ONTOGENETIC DEVELOPMENT OF OLFACTORY ORGANS IN
GRASS SHRIMP, PANDALUS KESSLERI (DECAPODA,
PANDALIDAE)
N. K. Blinovà1, S. A. Cherkashin2
1 Technological Institute of Volodymyr Dahl East Ukrainian National University
Sovetskiy pr., 59 a, Severodonetsk, Luhansk oblast, 934000 Ukraine
E-mail: sti@sti.lg.ua
2 Pacific Research Fisheries Centre
Shevchenko alley, 4, Vladivostok, 690091 Russia
E-mail: cherkashin@tinro.ru
Received 20 September 2009
Accepted 8 June 2010
Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda,
Pandalidae). Blinovà N. K., Cherkashin S. A. — The olfactory organ in decapod crustaceans is
represented by the outer antennular flagellum with specialized sensilla called aesthetascs. Characteristic
structures of the lateral antennular flagellum with olfactory setae in larvae, juveniles and adults of grass
shrimp Pandalus kessleri Czerniavski, 1878 are described.
Ke y wo r d s: grass shrimp, olfactory organ, development, aesthetasc.
Ðàçâèòèå îðãàíîâ îáîíÿíèÿ òðàâÿíîé êðåâåòêè, Pandalus kessleri (Decapoda, Pandalidae), â
îíòîãåíåçå. Áëèíîâà Í. Ê., ×åðêàøèí Ñ. À. — Îðãàí îáîíÿíèÿ äåñÿòèíîãèõ ðàêîîáðàçíûõ
ïðåäñòàâëåí íàðóæíûìè æãóòàìè àíòåííóë, ñ ðàñïîëîæåííûìè íà íèõ ñïåöèàëèçèðîâàííûìè
÷óâñòâèòåëüíûìè ùåòèíêàìè — ýñòåòàñêàìè. Îïèñàíû îñîáåííîñòè ñòðîåíèÿ ëàòåðàëüíîãî
æãóòà àíòåííóëû ñ îáîíÿòåëüíûìè ùåòèíêàìè ó ëè÷èíîê, ìîëîäè è ïîëîâîçðåëûõ îñîáåé
òðàâÿíîé êðåâåòêè — Pandalus kessleri Czerniavski, 1878.
Êëþ÷åâûå ñ ëîâ à: òðàâÿíàÿ êðåâåòêà, îðãàí îáîíÿíèÿ, ðàçâèòèå, ýñòåòàñê.
Introduction
Today, the crustaceans olfactory system is the subject of close morpho-functional studies (McClintock
et al., 2006). In decapod crustaceans, this organ is studied to a greater extent. The large body size and
accessibility of chemosensor organs in such species as Caribbean spiny lobster Panulirus argus, California
spiny lobster Panulirus interruptus, and American lobster Homarus americanus allowed their successful use in
morphological and neurobiological experiments (McClintock et al., 2006; Schmidt et al., 2006; Derby,
Sorensen, 2008).
The olfactory organ in decapod crustaceans is represented as the outer antennular flagellum with
specialized sensilla called aesthetascs. There are lots of information on aesthetascs morphology in many
Decapoda species (Ghiradella et al., 1868; Snow, 1973; Tierney et al., 1986; Blinova, 1988; Steullet et al.,
2000). Characteristic structures of olfactory receptors in grass shrimp Pandalus kessleri Czerniavski, 1878 has
been already described (Blinova, 1988, 2008). However, data on the ontogenetic development of
chemosensor structures in marine decapod crustaceans are still scanty.
The aim of the study was description of characteristic structures of olfactory receptors in grass shrimp
P. kessleri at different stages of individual development.
Material and methods
Outer structure of antennules with olfactory setae was studied in larvae of grass shrimp P. kessleri grown
in laboratory (Blinova, Cherkashin, 1999). Juveniles and adults for investigations catches in the Bay of Peter
the Great in the Sea of Japan.
Vestnik zoologii, 44(5): 413–419, 2010 Ìîðôîëîãèÿ
Morphometric parameters were studied with using of the scale ruler in MBS–9 binocular and Biola
microscope with ocular micrometer. The following parameters were measured: body length, length of the
outer antennular flagellum, length of aesthetasc, diameter of proximal and distal parts of antennular flagellum.
Body length was measured from the beginning of rostrum till the end of telson; total length of antennular
flagellums — from the base of distal annulet; diameter of the distal part of flagellum — at the level of fine
appendage without aesthetascs.
For the light microscopy, total preparations of the outer flagellum of antennulae stained with methylene
blue were used. For scanning electron microscopy, pieces of antennular tissue were fixed in 5% glutaraldehyde
in cacodylate buffer at pH 7.4 for 1.5 hours. Post fixation was performed in 1% of OsO4 solution in cacodylate
buffer at 4°Ñ for 1 hour. Dehydration was carried out in alcohols of increasing concentrations, material was dried
at the critical point, covered with gold and examined under scanning microscope JSM 25S (“JEOL”, Japan).
In every size-age group, from 5 to 10 specimens were studied. Totally, 80 animals were studied.
Morphometric data of the size-age groups with the number of specimens more than 5 are given with
arithmetic mean of error. For existing set of values, with using of MS Excel software, regression equation,
significance level of approximation (R2) and Pearson’s correlation coefficient (r) for linear function are
calculated.
Results
Outer structure of antennules with olfactory setae was studied in the early ontoge-
nesis of P. kessleri at 4 stages (after Kurata, 1955) of larval development. The transi-
tion from one stage to another is associated with moulting. Duration of the period
between moults was 4–5 days.
Body length of larvae grown under laboratory conditions was 9 mm on average.
Antennule unsegmented, its distal part is divided into two branches which further give
rise to internal and external flagellums (fig. 1). Internal branch is a short feathery seta,
260 µm long, sitting on a circular prominence. The length of external branch signifi-
cantly exceeds that of the inner (650 µm) due to a fine distal process, and on the ven-
tral side it has two smooth setae 120 µm in length each. Morphometric data on anten-
nules and aesthetascs in grass shrimp are presented in table 1.
The average size of the second stage larvae was 10.5 mm. Antennule has annulet-
ed structure: stem of three annuli and formed inner and outer flagellums. Outer flagel-
lum is divided into three annuli bearing 12 aesthetascs on the ventral side (fig. 2).
414 N. K. Blinovà, S. A. Cherkashin
Fig. 1. Antennules of Pandalus kessleri at the I larval stage: OF — outer flagellum; IF — inner flagellum.
Magnification õ30.
Ðèñ. 1. Àíòåííóëû Pandalus kessleri íà I ñòàäèè ëè÷èíî÷íîãî ðàçâèòèÿ: OF — íàðóæíûé æãóò; IF —
âíóòðåííèé æãóò. Óâåëè÷åíèå õ30.
Fig. 2. Distal part of àntennules of Pandalus kessleri at the II larval stage: OF — outer flagellum; A —
aesthetascs. Magnification õ63.
Ðèñ. 2. Äèñòàëüíàÿ ÷àñòü àíòåííóëû Pandalus kessleri íà II ñòàäèè ëè÷èíî÷íîãî ðàçâèòèÿ: OF —
íàðóæíûé æãóò; A — ýñòåòàñêè. Óâåëè÷åíèå õ63.
Larval aesthetascs are fine, smooth setae 350 µm in length with thickened base and
annulated rod. On flagellum, they form transverse rows, 3 hairs in each. One row of
olfactory setae is located on the distal annulet of the flagellum, two other rows are on
the second annulet and one row of growing aesthetascs (length 50–60 µm) on the prox-
imal annulet. Internal antennular flagellum is smaller than the outer one and consists
of two annuli (table 1).
At stage III of larval development, number of annuli on shrimp internal antennu-
lae flagellum increases, as well as all morphometric parameters (body length 12 mm).
However, the number of annuli of the outer flagellum and the number of aesthetascs
on them remain unchanged. The length of aesthetascs reaches 400 µm. Internal anten-
nulae flagellum of the IV stage larvae consists of six annuli. It equalizes in length with
the outer flagellum and even becomes larger. Short projection of the distal part of the
outer flagellum is isolated in a separate annulet, and the 5th group of growing aesthetascs
appears on proximal annulet. By the end of larval development, antennulae of grass
shrimp have 15 olfactory setae.
Statistical analysis of morphometric data indicated an exponential (for the length
of the outer flagellum, number of annuli) and power (for aesthetascs) dependence on
larval body length (table 2).
415Ontogenetic Development of Olfactory Organs in Grass Shrimp…
Ta b l e 1. Morfometric indices of the olfactory organs in larvae, juveniles and adults of Pandalus kessleri
Òàáëèö à 1. Ìîðôîìåòðè÷åñêèå ïàðàìåòðû îðãàíîâ îáîíÿíèÿ ó ëè÷èíîê, þâåíèëüíûõ è ïîëîâîçðåëûõ
îñîáåé Pandalus kessleri
Larvae
10.5 0.35 3 0.11 — 0.35
12.0 0.46 3 — — 0.40
13.0 1.05 4 — — 0.42
Juveniles
16 ± 0.70 1.5 ± 0.06 — 0.15 ± 0.006 0.096 ± 0.00 0.45 ± 0.020
18 ± 0.02 1.7 ± 0.07 — 0.17 ± 0.009 0.096 ± 0.03 0.47 ± 0.020
37 ± 0.30 5.5 ± 0.20 27 ± 0.4 0.28 ± 0.040 0.130 ± 0.010 0.48 ± 0.018
Adults
55 ± 1.8 8.5 ± 0.58 40 ± 1.1 0.41 ± 0.03 0.31 ± 0.03 0.65 ± 0.060
86 ± 2.2 16.3 ± 0.90 65 ± 0.3 0.61 ± 0.03 0.39 ± 0.02 0.65 ± 0.014
110 ± 1.8 18.1 ± 0.31 82 ± 0.6 0.70 ± 0.01 0.39 ± 0.03 0.68 ± 0.016
131 ± 2.1 19.6 ± 0.50 85 ± 1.3 0.74 ± 0.06 0.39 ± 0.02 0.78 ± 0.050
Body length,
mm
Length of outer
flagellum, mm
Number
of flagellum’s
annuli, psc
Diameter
of flagellum’s base,
mm
Diameter
of the peak,
mm
Aesthetasc length,
mm
Ta b l e 2. Dependence of morphometric parameters of olfactory organ on body length of Pandalus kessleri at
different ontogenetic stages
Ò à á ëèö à 2. Çàâèñèìîñòü ìîðôîìåòðè÷åñêèõ ïàðàìåòðîâ îðãàíà îáîíÿíèÿ îò äëèíû òåëà Pandalus kess-
leri íà ðàçëè÷íûõ ýòàïàõ îíòîãåíåçà
Length of outer
flagellum.
Number of flagellum’s
annuli
Diameter of flagellum’s
foundation
Diameter of the peak Aesthetasc length
No t e. R2 — significance level of approximation; r — Pearson’s correlation coefficient.
Larvae
Y =e 0.549 x
(R2 = 0.92)
Y=2.47 e 0.143x
(R2=0.75)
— — Y = 0.351X 0.168
(R2 = 0.98)
Juveniles
Y = 2X — 1.1
(R2 = 0.78)
r = 0.99
- Y = 0.065X + 0.07
(R2 = 0.86)
r = 0.99
Y = 0.017X+0.73
(R2 = 0.75)
r = 0.99
Y = 0.450X 0.059
(R2 = 0.99)
Adults
Y = 3.51X+6.85
(R2 = 0.84)
r = 0.95
Y = 15.2Õ+30
(R2 = 0.90)
r = 0.97
Y = 0.108X+0.35
(R2 = 0.89)
r = 0.97
– Y = 0.237X–0.06
(R2 = 0.73)
r = 0.94
After the next moulting, number of aesthetascs increases in proportion to size of
animal’s body. On outer antennular flagellum of juvenile shrimps, thin distal part which
bears no olfactory setae is formed. In the proximal part of the flagellum, zone with
increased number of growing aesthetascs becomes visible (fig. 3). On annuli of the mid-
dle part of the outer flagellum, aesthetascs are ordered in rows of 3 setae each (fig. 4).
For determined morphometric parameters, linear dependence on the length of animal’s
body was noted (table 2). With increased body length, the number of annuli and the
length of outer antennular flagellum increases in direct proportion: Pearson’s coefficient
of linear correlation is rather higher, 0.99. The dependence of every morphometric
parameter of outer antennular flagellum (Y) on body length (X) of young and adult
animals represented linear function. However, the length of the aesthetascs in the young
is increasing as well as in the larvae, according to power function. The number of aes-
thetascs per annulet of the flagellum remains relatively unchanged. Regression equation
reflecting the dependence of morphometric parameters of olfactory organs on shrimp’s
body length are given in table 2.
Antennules of mature specimens of grass shrimp P. kessleri consisted of foundation
divided into three parts, interior and outer flagellum (Blinova, 1988; fig. 1). Outer
antennular flagellum is slightly shorter than inner one. In grass shrimps of the size
131 mm in length, antennulae is 37 mm, the length of the outer flagellum — 19.6 mm.
Normally, outer flagellum consisted of 85 annuli. At the level of proximal annuli, its
diameter is 740 µm, and at the level of 60–70 annuli (in place of the transition to a
thin distal) is reduced to 390 µm.
Outer antennular flagellum is flattened dorso-ventrally (fig. 5). It has considerable
longitudinal groove on the ventral side where aesthetascs are located. This groove is
non-uniform, it is pronounced more on the medial side and in the middle of antennu-
lae. As a result, the groove has two limiting lateral lobes: larger medial and smaller lat-
eral. On approaching the thin distal part of antennulae, groove is evened out. Cuticle
inside the groove has numerous folds. Each annulet in the middle part of antennulae
(excluding 8–10 proximal and 15–20 distal) has two transverse rows of aesthetascs. One
416 N. K. Blinovà, S. A. Cherkashin
Fig. 3. New aesthetascs on proximal annuli of outer antennular flagellum of Pandalus kessleri: OF — outer
flagellum; A — aesthetascs. Magnification õ160.
Ðèñ. 3. Ðàñòóùèå ýñòåòàñêè íà ïðîêñèìàëüíûõ ÷ëåíèêàõ íàðóæíîãî æãóòà àíòåííóëû Pandalus kessleri:
OF — íàðóæíûé æãóò; A — ýñòåòàñêè. Óâåëè÷åíèå õ160.
Fig. 4. Outer antennular flagellum with aesthetascs of juvenile Pandalus kessleri: OF — outer flagellum; A —
aesthetascs. Magnification õ63.
Ðèñ. 4. Íàðóæíûé æãóò àíòåííóëû ñ ýñòåòñêàìè ó þâåíèëüíûõ îñîáåé Pandalus Kessler: OF —
íàðóæíûé æãóò; A — ýñòåòàñêè. Óâåëè÷åíèå õ63.
row consists of 6 sensory hairs. Proximal 6–8 annuli of the flagellum have no aes-
thetascs. Each next annulet contains two rows of 3, then 4, 5, and at last of 6 olfacto-
ry setae.
Aesthetasc of mature grass shrimp is a fine hairless villus embedded into the cutic-
ular fold of antennulae. It is formed by expanded ampoule shaped base and a rod of
segmented structure. In specimens with average body length of 131 mm, the total length
of hairs in the middle part of antennulae is 780 µm, and the hairs located on the dis-
tal and proximal annuli — 620 µm. Diameter of hairs at the base is 30 µm. The height
of the rod annuli increases from 20 mm at the base to 40 µm in the middle. The api-
cal part of the aesthetascs is characterized by thin seta, 30–35 µm in length. In cutic-
ular fold of antennulae, small pores (10 pores in each hair) are located proximally from
aesthetasc.
In some specimens of P. kessleri with body length of 130–140 mm, special fan-
shaped setae were found behind aesthetascs. These setae have rounded base and up to
40 fused elongated «petals», the total size of which does not exceed 35 µm.
Discussion
Distant perception of chemical stimuli in crustaceans by antennular chemorecep-
tors (Antenna 1) is studied. However, antennule of crustaceans is multifunctional sen-
sory organ with numerous sensitive structures of different modalities. Among sensory
setae of outer antennular flagellum in grass shrimp, as well as in other species of deca-
pod crustaceans, the most numerous specific olfactory setae are aesthetascs.
Sensory setae appeared on antennules on early ontogenetic stages. Grass shrimp
has incomplete metamorphosis — hatched larvae look like adults. Nevertheless, mor-
phological studies of olfactory organs on various ontogenetic stages P. kessleri revealed
significant differences between the outer antennular structure and olfactory setae in lar-
vae, juveniles and adults. During the growth and development of grass shrimp, the
structure of olfactory organs is being improved and complicated to meet increasing sen-
sory needs of the animal.
417Ontogenetic Development of Olfactory Organs in Grass Shrimp…
Fig. 5. Outer antennular flagellum of antennule of Pandalus kessleri with aesthetascs: OF — outer flagellum;
A — aesthetascs. Scanning electronogramme. Scale bar 1000 µm.
Ðèñ. 5. Íàðóæíûé æãóò àíòåííóëû Pandalus kessleri ñ ýñòåòàñêàìè: OF — íàðóæíûé æãóò; A —
ýñòåòàñêè. Ñêàíèðóþùàÿ ýëåêòðîíîãðàììà. Ìàñøòàáíàÿ ëèíåéêà 1000 ìêì.
The outer antennular structure with their sensory setae in P. kessleri larvae has
been described in detail earlier (Blinova, Cherkashin, 1999). Hatched larvae of grass
shrimp have two smooth setae on each ventral outer antennular branch. These setae
may be precursors of aesthetascs. Before the first moult, their outer structure is not sim-
ilar to that of aesthetascs. The larvae of some Far Eastern species of shrimps on the
early stages of development also have sensory setae on their antennules (Ivanov, 1971).
In ontogenesis, aesthetascs in P. kessleri appear on the II stage of larval development:
9 morphologically formed setae and 3 young growing setae (Blinova, Cherkashin,
1999). Kurata (1955) also noted that in this period outer antennular flagellum in grass
shrimp consists of three annuli with four groups of sense hairs. By the end of larval
development, the outer antennular flagellum totally contains 15 aesthetascs. In young
animals, newly emerged setae starts functioning after a long time. It is known that in
the post-embryonic period larvae of crustaceans complete their organogenesis (Ivanova-
Cazas, 1979).
The growth and formation of aesthetascs in the young individuals starts in the
proximal part of the outer antennular flagellum and then wave of turnover goes distal-
ly to fine prominence where aesthetascs destructed. On the outer antennular flagellum
of grass shrimp, as well as other decapod crustaceans, from proximal to distal parts, the
following zones are seen: proliferation where setae are formed; zone with functionally
mature aesthetascs and, finally, senescense zone (Schmidt et al., 2006). Sometimes the
transition zone is distinguished between the proliferation zone and zone with mature
aesthetascs (McClintock et al., 2006). It covers proximal annuli of the outer flagellum
with growing aesthetascs. For P. kessleri, the annuli with functionally mature sensory
setae form most part of the outer antennular flagellum (50%). The lifetime of newly
appeared setae in juvenile lobster P. argus is not associated with moulting and this is a
period of approximately 3 to 6 moults (Steullet et al., 2000). Differentiation and func-
tional formation of olfactory sensory neurons in aesthetascs occurs over rather long
period of time: from several weeks to several months. Flagellar growth due to increas-
ing number of annuli in the growth zone with a constant number of hairs on each
annulet of the middle part of antennulae enables the animal to maintain the constan-
cy of the receptive field and sensitivity to chemicals.
In ontogenesis, in the middle part of the outer antennular flagellum, the number
of aesthetascs in one row increases from three to six. In adults, protective and promot-
ing perception of chemical stimuli structures and appliances appear. Deepening of aes-
thetascs in P. kessleri into the groove with two lateral lobes prevent damaging of setae.
For this purpose, lobster P. argus has powerful guard bristles forming two longitudinal
rows medially and laterally from aesthetascs (Derby et al., 2001). Possible functions of
pores at the foundation of olfactory setae are associated with release of a secret from
so-called “aesthetasc tegumental glands” preventing aesthetascs friction and contami-
nation (Schmidt et al., 2006). Fan-shaped setae revealed behind the aesthetascs foun-
dation in some large specimens of grass shrimp are probably a sign of sexual dimor-
phism and participate in the reception of pheromones in females (Blinova, 2008). Fine
apical villus of distal part of setae rod may increase probability of interaction with olfac-
tory stimulus.
Morphometric parameters of the olfactory organ larvae has nonlinear, but expo-
nential or power dependence on the total length of the grass shrimp body. The power
function was proposed to determine dimensions of different parts of body in P. kessleri
larvae at known carapace length (Kurata, 1955). In contrast to obtained power depen-
dence between larval body length and antennular morphometric parameters, young and
adult animals have mainly simple linear dependence. Changing the nature of morpho-
metric data of olfactory organs from the body length during ontogenesis is likely due to
the fact that the development of the peripheral part of olfactory system is the most
418 N. K. Blinovà, S. A. Cherkashin
intensive during the larval period and completes in mature animals. Based on these
data, we can assume that during the larval and juvenile stages of development of the
grass shrimp, morphological basis for functioning of olfactory organ and related innate
behavioural reactions are formed.
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Pandalus latirostris // Çîîëîãè÷åñêèé æóðíàë.
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(Decapoda, Pandalidae) // Âåñòíèê çîîëîãèè.
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419Ontogenetic Development of Olfactory Organs in Grass Shrimp…
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| id | nasplib_isofts_kiev_ua-123456789-65719 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0084-5604 |
| language | English |
| last_indexed | 2025-12-07T17:17:08Z |
| publishDate | 2010 |
| publisher | Інститут зоології ім. І.І. Шмальгаузена НАН України |
| record_format | dspace |
| spelling | Blinova, N.K. Cherkashin, S.A. 2014-07-01T05:30:52Z 2014-07-01T05:30:52Z 2010 Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae) / N.K. Blinova, S.A. Cherkashin // Вестник зоологии. — 2010. — Т. 44, № 5. — С. 413–419. — Бібліогр.: 14 назв. — англ. 0084-5604 https://nasplib.isofts.kiev.ua/handle/123456789/65719 595.384:591.486 The olfactory organ in decapod crustaceans is represented by the outer antennular flagellum with specialized sensilla called aesthetascs. Characteristic structures of the lateral antennular flagellum with olfactory setae in larvae, juveniles and adults of grass shrimp Pandalus kessleri Czerniavski, 1878 are described. Орган обоняния десятиногих ракообразных представлен наружными жгутами антеннул, с расположенными на них специализированными чувствительными щетинками — эстетасками. Описаны особенности строения латерального жгута антеннулы с обонятельными щетинками у личинок, молоди и половозрелых особей травяной креветки — Pandalus kessleri Czerniavski, 1878. en Інститут зоології ім. І.І. Шмальгаузена НАН України Вестник зоологии Морфология Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae) Развитие органов обоняния травяной креветки, Pandalus kessleri (Decapoda, Pandalidae), в онтогенезе Article published earlier |
| spellingShingle | Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae) Blinova, N.K. Cherkashin, S.A. Морфология |
| title | Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae) |
| title_alt | Развитие органов обоняния травяной креветки, Pandalus kessleri (Decapoda, Pandalidae), в онтогенезе |
| title_full | Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae) |
| title_fullStr | Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae) |
| title_full_unstemmed | Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae) |
| title_short | Ontogenetic Development of Olfactory Organs in Grass Shrimp Pandalus kessleri (Decapoda, Pandalidae) |
| title_sort | ontogenetic development of olfactory organs in grass shrimp pandalus kessleri (decapoda, pandalidae) |
| topic | Морфология |
| topic_facet | Морфология |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/65719 |
| work_keys_str_mv | AT blinovank ontogeneticdevelopmentofolfactoryorgansingrassshrimppandaluskessleridecapodapandalidae AT cherkashinsa ontogeneticdevelopmentofolfactoryorgansingrassshrimppandaluskessleridecapodapandalidae AT blinovank razvitieorganovobonâniâtravânoikrevetkipandaluskessleridecapodapandalidaevontogeneze AT cherkashinsa razvitieorganovobonâniâtravânoikrevetkipandaluskessleridecapodapandalidaevontogeneze |