Leonid Svetlichny

Leonid Svetlichny
National Academy of Sciences of Ukraine | ISP · Department of Invertebrate Fauna and Systematics of the I. I. Schmalhausen Institute of Zoology, Kiev

PhD

About

95
Publications
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Introduction
Leonid Svetlichny currently works at the Department of Invertebrate Fauna and Systematics of the I. I. Schmalhausen Institute of Zoology, Kiev, National Academy of Sciences of Ukraine. Leonid does research in Marine Biology. Their most recent publication is 'Swim and fly. Escape strategy in neustonic and planktonic copepods.'

Publications

Publications (95)
Article
Cyclopoid and calanoid copepods differ in how they move. Cyclopoid copepods use the thoracic legs for cruise and escape swimming while most calanoid copepods use the cephalic appendages for cruise swimming and the thoracic legs for escape reactions. Apart from this gross difference, little is known on the comparative aspects of the locomotor functi...
Preprint
Full-text available
In autumn 2020, Sinodiaptomus sarsi (Rylov, 1923) was found in three artificial ponds in one of the capital`s parks, the Nyvka Park, in Kyiv, Ukraine (Svetlichny, Samchyshyna, 2021). This was a second finding of the species after the record in the West Ukraine (Mykitchak, 2016) which was in fact a first finding for Europe. As known, the term invasi...
Conference Paper
Full-text available
The effect of starvation on Limnocalanus macrurus energy metabolism and behavioural response was studied in a short-term experiment during August-September 2019 at the mesocosm facilities of Finnish Environment Institute in Helsinki (SYKE). Planktonic copepods, such as Limnocalanus macrurus, are able to survive during unfavourable periods by using...
Article
Multi-day experiments were carried out with two Marmara Sea calanoid copepod species: Acartia clausi and Centropages typicus, to assess the possible role of the type of feeding on the consumption of microplastics and its influence on the rate of energy metabolism of these species. In a mixture of microplastic beads (6μm diameter) and algae Rhodomon...
Article
Full-text available
The gender differences in reaction to salinity (3-50) and temperature (6-26°C) stress were studied in the thermophilic cyclopoid copepod Oithona davisae, introduced in the brackish temperate Black Sea since 2001. Both females and males possessed similar salinity tolerance ranges (6–40) irrespective of the salinity change rate, and females displayed...
Article
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Sinodiaptomus sarsi is found for the second time in Ukraine, in the three artificial lakes of the one of capital Kyiv city`s park, Nyvky, after its first record in the Carpathian Mountain region near Slovakian border in 2016 by Dr. Mykitchak. Our morphological study showed the similarity between the specimens of S. sarsi found in Kyiv with existing...
Article
Full-text available
Consumption rates of polystyrene microplastics (beads of 6, 12, and 26 μm diameter) and their effects on energy metabolism and motor activity of the copepod Calanus helgolandicus living in the Marmara Sea were investigated. All sizes of microplastic particles were actively consumed and excreted via fecal pellets, however, copepods displayed a signi...
Article
Full-text available
Calanoid copepods have two swimming gaits, namely cruise swimming that is propelled by the beating of the cephalic feeding appendages and short-lasting jumps that are propelled by the power strokes of the four or five pairs of thoracal swimming legs. The latter may be 100 times faster than the former, and the required forces and power production ar...
Article
Full-text available
Since 2007, the non-indigenous calanoid copepod Pseudodiaptomus marinus Sato, 1913 has been increasingly recorded in numerous European sites, spreading at an unexpectedly fast pace over a short time-span. This species presents specific biological and behavioural traits which make it of particular interest for ecological and applied research topics....
Article
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The salinity tolerance and the effect of temperature were studied on the behavior and motor activity of the nonindigenous Indo-Pacific calanoid copepod Pseudodiaptomus marinus, first found in Sevastopol Bay (Black Sea) in autumn 2016. According to the index of median lethal salinity (LS50 ), the salinity tolerance range of adult P. marinus collecte...
Article
Full-text available
During 2013–2016 in Sevastopol Bay, seasonal and interannual dynamics of the population density, age and sex composition, fecundity, and mortality of males and females of O. davisae were studied. A maximum population number (up to 554 ind × 10³ m–3) was registered at the end of summer–end of autumn. In this period, the nauplii and early copepodite...
Conference Paper
Full-text available
Microplastic particles are now found throughout the world's oceans. Recent studies have shown that these particles can be ingested by zooplankton species and later egested within their fecal pellets, which lead to spreading of the microplastic along the food web. This study investigated ingestion, egestion and effects of microplastic on the metabol...
Article
Full-text available
Copepods may respond to predators by powerful escape jumps that in some surface dwelling forms may propel the copepod out of the water. We studied the kinematics and energetics of submerged and out-of-water jumps of two neustonic pontellid Anomalocera patersoni and Pontella mediterranea and one pelagic calanoid copepod Calanus helgolandicus (euxinu...
Chapter
In the Black Sea copepod species from marine and coastal areas (including Ponto- Caspian and boreal relicts, old Mediterranean immigrants and recent Atlantic and Indo- Pacific invaders), the salinity tolerance ranges and osmotic responses to salinity changes were estimated. Also, the effect of temperature and dissolved oxygen concentration on respi...
Article
Comparative studies of total and basal respiration rate, body mass density, gravity sinking, routine and escape swimming speeds in sac-spawning and broadcast-spawning females of Pseudocalanus elongatus and Acartia clausi, respectively, were conducted. The effect of temperature on the behavior of females with different fecundity status was investiga...
Article
Around 2010, the alien copepod Oithona davisae was introduced to the Marmara Sea and Golden Horn Estuary to live alongside the native species, Oithona nana. By October 2015, the population number, including nauplii, of the introduced species (213,600 ind m⁻³) was higher than that of the native species (54,900 ind m⁻³) and close to that of O. davisa...
Article
Full-text available
Salinity tolerance, energy metabolism, buoyancy, and passive sinking and swimming speeds have been studied for comparative assessment of the adaptive potential of two species of cyclopoid copepods in the Black Sea, the native Oithona similis and new invader Oithona davisae. Both species were considered marine euryhaline copepods, but the range of s...
Article
Full-text available
Annual dynamics of abundance and gender composition, seasonal variations in reproduction, respiration rate and locomotor activity of the new invasive cyclopoid species Oithona davisae were investigated in Sevastopol Bay (Black Sea) from January 2013 till July 2014. The abundance of O. davisae in Sevastopol Bay was highest in September – November at...
Conference Paper
Full-text available
Abundance, population structure and salinity tolerance as an index of adaptive capacity were studied in cyclopoid copepods Oithona nana and Oithona davisae in the Golden Horn Estuary and adjacent Marmara Sea during October 2015. For comparison the data on O. davisae from Sevastopol Bay (Black Sea) and Oithona similis (common for all studied regions...
Conference Paper
Full-text available
Respiration rates were measured in active and anesthetized females of Pseudocalanus elongatus with or without ovisacs in order to estimate the energy cost of egg-carrying strategy. Mass density of the body and eggs and sinking and swimming speed of female in different reproductive stages were measured to understand the effect of brood on body posit...
Book
Full-text available
The book is the official document containing the data on species and subspecies of animals protected in the territory of the Republic of Crimea. It contains 370 species: 7 species of annelids, 12 species of mollusks, 217 species of arthropods and 134 species of chordates. The description of each species is accompanied by a color illustration and a...
Article
Full-text available
The dynamics of abundance and biomass of Noctiluca scintillans (Dinoflagellata) and Acartia clausi (Copepoda) in the Bosphorus area of the Black and Marmara Seas during 2005–2009 has been analyzed. Despite the fact that the more abundant Black Sea zooplankton community permanently enters the Marmara Sea, A. clausi and N. scintillans have formed ind...
Article
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This paper reviews the changes in the marine planktonic copepods of the Black Sea species' list from the beginning of taxonomic research to the present day. The study was based on the SESAME biological database, unpublished data, literature and data obtained during the course of the SESAME project. Comparisons were made with the Guidebook for Marin...
Article
Full-text available
Abundance, biomass, age composition, lipid reserves in Calanus euxinus population from the deep shelf and slope zones of the north-western Black Sea were studied basing on the data collected during the cruise of the R/V “Professor Vodyanitsky” in October 2010. Reproductive activity of females was evaluated according to the gonad and oocyte maturity...
Conference Paper
Full-text available
Our field observation and laboratory experiments indicate that O. davisae population in the Black Sea can survive winter in the stage of pre-fertilized females similar to Cyclops strenuus (Nsess, Nilssen, 1991). Life cycle pattern of O. davisae in the Black Sea is the same as that in Fukuyama Harbor (the Inland Sea of Japan) (Uye, Sano, 1995) where...
Conference Paper
Full-text available
Effects of salinity and temperature on mortality, egg production and hatching success of Acartia tonsa and Oithona davisae were studied in the laboratory. The salinity tolerance ranges of these species living in the Black Sea at 18 psu amounted to 2 -30 psu and 3 -40 psu for A. tonsa and O. davisae, respectively. However, after long-term acclimatio...
Conference Paper
Full-text available
Body size, oil sac volume, molting patterns and respiration rate were studied in copepods Calanus euxinus inhabiting the Black Sea and penetrating into the Marmara Sea, and mother species Calanus helgolandicus living in the Ionian Sea. Our laboratory and field data suggested more effective energy strategy of C. euxinus in the Black Sea due to metab...
Article
Full-text available
Mortality, respiration rate, and body mass density of the estuarine copepods Calanipeda aquaedulcis and Arctodiaptomus salinus and their eggs were studied over a wide range of salinities. Empirical hydrodynamic modeling was applied to calculate body mass density using the sinking speed of the copepods. According to the index of median lethal salini...
Article
Full-text available
Mass density, sinking speed and hatching success of eggs in Calanus euxinus, Acartia clausi and A. tonsa have been examined in response to salinity and temperature of the Marmara and Black Seas. Eggs of C. euxinus from the Marmara and Black Sea populations (mean mass density of 1.036 to 1.040 g cm(-3)) laid in brackish (18 to 22 psu) upper layers o...
Article
Full-text available
We investigated how stenohalinic Black Sea Calanus euxinus, when migrating to the north-eastern Marmara Sea, can adapt to the pronounced salinity gradient there. During field observations (2005 to 2008) females of Calanus euxinus with significantly smaller body length (compared with those inhabiting the brackish Black Sea at 17 to 18 psu) were foun...
Article
Full-text available
During 2005–2008 species composition, abundance patterns, natural mortality rates and salinity effects on zooplankton were studied in the Bosphorus regions of the Black and Marmara Seas. The tendencies to diminish for abundance and biomass of the Black Sea originated zooplankton species and to increase for the proportion of their carcasses in the d...
Article
Full-text available
Temporal and spatial changes in abundance, prosome length, oil sac volume, molting patterns and morphometric parameters were studied in Calanus euxinus from the Black and Marmara Seas. In the south-western part of the Black Sea and deep shelf zone near Sinop the abundance of C. euxinus was high during the whole studied period (2000–2005), with a...
Article
Full-text available
In copepodites and adults of Calanus euxinus abundance, body length and weight, chemical composition and respiration rate in relation to age were studied during the cruise of R/V ‘Knorr’ in April 2003 in the southwestern Black Sea and in laboratory experiments. Data on morphology and physiology of C. euxinus collected during other seasons were also...
Article
Full-text available
In October 2005 spatial distribution of live and dead Acartia clausi and Acartia tonsa was studied in the Black and Marmara Seas and near the Marmara Sea inlet of the Bosphorus, in order to understand their fate upon transportation between two seas. The morphometric characteristics in both species from all studied areas, and the decreased abundance...
Article
Full-text available
Oil sac volume, gonad size and moulting patterns were investigated in the copepod Calanus euxinus inhabiting deep and shallow zones of the Black Sea and penetrating into the Marmara Sea. In summer the C. euxinus population in deep layers of the Black Sea was dominated by pre-diapause and diapausing postmoult copepodite stage V (CV) with small sexua...
Article
Full-text available
In October 2005 species composition and abundance of mesozooplankton collected in the Black Sea (near the entrance of the Bosphorus) and in the Marmara Sea (near the exit of the Bosphorus and Prince Islands) were studied taking into account the number of live and dead individuals. Along the Bosphorus, the numbers of the Black Sea originated Copepod...
Article
Full-text available
The effect of locomotor activity on respiration rate was studied in the food-deprived copepod Calanus euxinus tethered to a force sensor. The power generated by mouth appendages during cruising locomotion, with a frequency of 40 Hz, accounted for 0.026 and 0.0031 W for metabolic and mechanical processes, respectively. To overcome total hydrodynamic...
Article
Full-text available
The proximate biochemical composition and metabolic rates of ctenophores Mnemiopsisleidyi and Beroeovata from the Black Sea were examined with respect to starvation conditions. Although organic matter content in B.ovata was two times higher than that of M.leidyi (2.51 ±0.53 and 1.14 ±0.17 mg g-1 of wet weight, respectively), these species did not s...
Article
Full-text available
The vertical distribution, diel gut pigment content and oxygen consumption of Calanus euxinus were studied in April and September 1995 in the Black Sea. Gut pigment content of C. euxinus females was associated with diel vertical migration of the individuals, and it varied with depth and time. Highest gut pigment content was observed during the nigh...
Article
Full-text available
Metabolic rates of the ctenophore Beroe ovata within the length range from 0.4 mm (newly hatched larvae) to 60 mm were investigated. At 20°С the respiration rates (Q, µg O2 ind.−1 h−1) of individuals with wet weights (W, mg) less than or greater than 100 mg changed according to the equations Q=0.093W 0.62 and Q=0.016W 0.99, respectively. The weight...
Article
Full-text available
Zooplankton community state in Sevastopol Bay after the invasion of ctenophore Beroe ovata into the Black Sea (1999 – 2003). E. S. Hubareva, L. S. Svetlichny, Z. A. Romanova, G. I. Abolmasova, B. E. Anninsky, G. A. Finenko, L. Bat, A. Kideys. From September 1999 till September 2003 the studies of species composition, abundance and biomass of fodder...
Article
Full-text available
The impact of the introduced ctenophore Beroe ovata on its prey Mnemiopsis leidyi, another invader ctenophore voraciously feeding on mesozooplankton, and consequently on the mesozooplankton community, was evaluated by undertaking both laboratory and field studies in the northern Black Sea. Ingestion and growth rates as well as the gross growth effi...
Article
Full-text available
Laboratory measurements of the metabolic rates and locomotion in the migrating (CM) and diapaus- ing (CD) copepods Calanus euxinus were carried out at different dissolved oxygen contents in the range from 10 to 0.2 mg 2/l. The level of the total, basal, and activity metabolisms, as well as the kinematic and mechan- ical parameters of their motor a...
Article
Full-text available
The influence of oxygen concentration on total and basal metabolism, scope of activity, drag force and duration of jerks, time spent swimming and energy cost of locomotion in Moina micrura Hellich females cultured under hypo- and normoxia was investigated. Scope of activity (Q l) of hemoglobin-rich red individuals (Ma) acclimated to hypoxia depende...
Article
Full-text available
 In the Black Sea, during summer stratification, Calanus euxinus (Hulsemann) undertakes diel vertical migrations with an amplitude of about 117 m from oxygenated, warm (18 °C) surface layers to hypoxic (∼0.8 mg O2 l−1) zones with lower temperature (7.9 °C). When such changes in temperature and oxygen concentration are reproduced in the laboratory,...
Article
Full-text available
The content and composition of lipids in Calanus euxinus females were studied in cyclonic and anticyclonic regions in the southern Black Sea during the period of persistent density stratification (September 1996). The lipid content of C, euxinus from cyclonic regions was greater than of individuals from anticyclonic regions (average 101.9 and 58.8...
Article
Motor activity, content and composition of total lipids, phospholipids, fatty acids of triacylglycerides, waxes, and phospholipids of diapausing groups of Calanus euxinus V-copepodites from the Black Sea redox-zone have been investigated. It has been shown that diapausing V-copepodites had 1.5 times lower activity and 2-2.5 times higher fatness as...
Article
Full-text available
The effect оf hypoxia on the metabolism and behaviour of active and diapausing copepodite stage V of Calanus еихinus is investigated. The atomic 0:N гасtiо is used as an indicator of the substrates involved in metabolism. It is shown that in actively migrating copepodites V (СVa), changing oxygen concentration from saturation со hypoxia (0.81 ± 0.1...
Article
Full-text available
Trends in the dynamics of respiration rate and the efficiency of swimming in dependence on mechanical energy of locomotion were analyzed in six species of Black Sea and Mediterranean copepods. Respiration rate proved to weakly depend on mechanical energy expenditures, whereas locomotion efficiency monotonously increased from 2.5-6 to 22% proportion...
Article
During field studies, the relationships between chlorophyll concentrations, phytoplankton biomass (total, individual sizes and species) and the level of accumulation of total lipids, wax esters, triacylglycerols, and phospholipids in C. euxinus (copepodites V and females) were studied. These links allowed us to display not only simple trophic relat...
Article
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Data on the morphology, reproduction and diet of Mnemiopsis mccradyi, a new inhabitant of the Black Sea, are presented. The distribution of the species and its temporal variation are described based on data collected between 1988 and 1990. The abundant development of this predator has greatly decreased the abundance of the Zooplankton on which it f...
Article
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Succession, orientation, frequency, circular velocity of the mouth appendages as well as body movement velocity in routine swimming of copepods have been studied. Some ontogenesis aspects of the locomotion of copepods are considered.
Article
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The scale variations of the coefficients of hydrodynamic resistance of antennas, hydrodynamical efficiency, power and cost of the transport have been established on the basis of direct measurements of the pull force, velocity and frequency of motion of the mouth appendages in copepods of different size.
Article
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Results of direct instrumental determination of the hydrodynamic resistance of body and limbs with uniform and unsteady locomotion of copepods are presented. The obtained data are compared with previous estimates obtained by means of physical and mathematical simulation.
Article
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The high-speed filming and semi-conducting micro tensors were used to study the kinematic structure and mechanical parameters of the locomotion using mouth appendages in Calanus helgolandicus. At the highest activity the frequency of locomotive cycles in mature specimens reaches 45 Hz, angular velocity of the appendages, 170 rad s-1, the resultant...
Article
Full-text available
The connection (r=0.84) between the oxygen uptake rate (Q, μl O2 h-1) and lo¬comotion mechanic energy (E, ergs h-1) in Calanus attached in a force data unit appro¬ximated by the power equation Q=0.071±0.002 E0.29±0.04. Coefficient of mechanic-chemical conjugation, when there is usual locomotion, changes within 2-15% in proportion to the locomotion...
Article
Full-text available
In the experiments lasting up to 37 days, at constant temperature and in complete darkness the copepods attached to a force sensor maintained the circadian rhythm of locomotion, predominantly by mouth extremities. The rhythm was revealed within 10 to 97 percent of the copepods maximal activity and its period clearly depended on the temperature (Q10...
Article
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Established is the dependence of frequency, force and locomotion power on temperature for continuous and dashing swimming of the Black Sea Сalanus. In the conditions of acclimation the frequency and power of the mouth extremities of the crustacean are related to temperature accordingly to exponential law, with mean temperature coefficients 1.5 and...
Article
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Mechanism and parameters of locomotion at danger avoidance reaction in mass copepod species of the Black and Mediterranian Seas have been studied. Tractive effort in copepods increase in proportion to square their linear dimensions, nevertheless, Rubner's «surface rule» cannot be applied to their power, because of simultaneous increase in radial sp...
Article
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Linear and volumetric morphometry was performed in basic groups of body muscles of the Black Sea C. helgolandicus, structural and functional parameters are reported. The largest integral values of rate, strength and power of muscle contraction at the working stage of the jump-type locomotor act were by high speed filming and synchronous electron te...
Article
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Velocities of free, jump-like movement of the Black sea Calanus during escape reaction, and tractive forces developed by these crustacea in the regime of their swimming on а leash are presented. For maximum mean velocity about 40 cm/s the integral thrust for species with body length 0,32 cm is up to 19 dynes, and mechanical power is 1,8 • 10-4 W. M...
Article
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Reaction of escaping in the older developmental stages of С. helgolandicus is а single or several series consisting of many dozens of jumps continuously following each other with intensity gradually decreased. Significant correlations have been determined between duration, mean velocity and distance of а jump as well as between angular velocity of...