AMPHIPODS OF THE MARINE FARMS IN SEVASTOPOL COASTAL WATERS (BLACK SEA)

Long-term (20032014) routine observations of zooplankton in Sevastopol Bay (the Black Sea) have allowed the naturalization of the invasive copepod Oithona davisae to be studied in the Black Sea coastal waters. Inter-annual and seasonal variability of the species and their impact on the native copepod community have been analyzed. The invasion of O. davisae and their undoubted dominance in terms of abundance were shown to alter the community structure but, at the same time, the abundances of the native species did not decrease, excepting the Black Sea earlier invader Acartia tonsa. A significant decline in A. tonsa numbers over the stages of O. davisae establishment and naturalization provided evidence of competition between the species. O. davisae have been demonstrated to gain competitive advantage over A. tonsa, that ensured their fast dispersal in the Black Sea, acclimatization in the new habitat and the successful competition over native species.

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ANALYSIS OF THE FUNCTIONING OF MARINE ECOSYSTEMS ON CHANGING THE PARAMETERS OF THE BIOLUMINESCENCE FIELD ON THE CRIMEAN BLACK SEA SHELF

Proceedings of International Conference "Managinag risks to coastal regions and communities in a changinag world" (EMECS'11 - SeaCoasts XXVI) ◽

10.21610/conferencearticle_58b43168bfc21 ◽

2017 ◽

Author(s):

Svetlana Rubtsova ◽

Natalya Lyamina ◽

Aleksey Lyamin ◽

...

Keyword(s):

Black Sea ◽

Field Intensity ◽

Deep Water ◽

Coastal Waters ◽

Integrated Management ◽

Abiotic Factors ◽

Environmental Safety ◽

The Black Sea ◽

Intensity Increase ◽

First Time

The concept of a new approach to environmental assessment is offered in the system of integrated management of the resource and environmental safety of the coastal area of the Black Sea. The studies of the season and daily changeability in the bioluminescence field in the Sevastopol coastal waters has been conducted. For the first time considerable differences in the bioluminescence field seasonal changes in the surface and deep water layers and the reasons conditioning this phenomenon have been shown, using a method of multidimensional statistical analysis. The bioluminescence field vertical profile change in the Black sea coastal waters in the autumn period at night has been studied. It has been shown that according to the character of bioluminescence parameters dynamics a water column can be divided into layers: upper (0 – 35 m) and deep water (36 – 60 m). It has been revealed that life rhythms of the plankton community are the main reason for the bioluminescence field intensity variability. It has been revealed that 14-hour periodicity of the bioluminescence field is related to the changes in light and its variations with 2,5…4,5 hours are conditioned by planktonts endogenous daily rhythms. And here biotic factors effect mostly periodicity of the bioluminescence field intensity increase and fall down at the dark time of the day. Abiotic factors are of less importance in circadian rhythmic of the bioluminescence field in the neritic zone.

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The Influence of Phytoplankton Primary Production on the Cycle of Biogenic Elements in the Coastal Waters off Sevastopol, Black Sea

Russian Journal of Marine Biology ◽

10.1134/s1063074018030057 ◽

2018 ◽

Vol 44 (3) ◽

pp. 240-247 ◽

Cited By ~ 2

Author(s):

V. N. Egorov ◽

V. N. Popovichev ◽

S. B. Gulin ◽

N. I. Bobko ◽

N. Yu. Rodionova ◽

...

Keyword(s):

Primary Production ◽

Black Sea ◽

Coastal Waters ◽

Biogenic Elements ◽

Phytoplankton Primary Production

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The long-term ichthyoplankton abundance summer trends in the coastal waters of the Black Sea under conditions of hydrometeorological changes

Estuarine Coastal and Shelf Science ◽

10.1016/j.ecss.2021.107450 ◽

2021 ◽

pp. 107450

Author(s):

Basova Marina ◽

Krasheninnikova Svetlana ◽

Fazio Francesco

Keyword(s):

Black Sea ◽

Coastal Waters ◽

The Black Sea

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A new record of Ratan goby - Ponticola ratan (Nordmann, 1840) (Pisces: Gobiidae) in the Black Sea, Romanian coastal waters

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Animal Science and Biotechnologies ◽

10.15835/buasvmcn-asb:12220 ◽

2016 ◽

Vol 73 (2) ◽

pp. 245

Author(s):

Daniel Cocan ◽

Vasile Otel ◽

Calin Latiu ◽

Vioara Miresan

Keyword(s):

Black Sea ◽

Coastal Waters ◽

New Record ◽

Head Length ◽

Distribution Area ◽

The Black Sea ◽

Future Research ◽

Meristic Characters ◽

Lower Jaw ◽

Western Area

In August 2015 we managed to capture a specimen of ratan goby (Ponticola ratan) in the Romanian coastal waters of the Black Sea, near the locality of Sf. Gheorghe (Tulcea County). This is the 7-th signaling for this species in Romanian coastal waters. The previous 6 specimens were recorded in the period 1960-1993, between Mangalia (Constanţa County) and Sulina (Tulcea County). The species was identified by means of meristic characters (number of scales on medial line, number of spiny and soft rays), and morphological particularities (cycloid scales on the nape area and pectoral fin joint). Also, the measurements made, confirmed that the ratio between the head length and total length, which was 33% (TL=8.70 cm vs. Head Length=2.61cm). Another morphological character, specific to this species, is the lower jaw, which exceeds in length the upper jaw. Being a Ponto-Caspian endemite, with low population along the Bulgarian and Romanian coastline, we considered it important to point out this new record. Noting that, being known the trend of sporadic migration of this species, would not be excluded that global warming causes a shift from its normal distribution area, from northern and northeastern (Black Sea) to south-west. Therefore, future research may bring more notifications regarding this species in south-western area of the Black Sea

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