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Гирагосов, В. Е.; Khanaychenko, Antonina

doi:10.4194/1303-2712-v12_2_25

Cited by 8 publications

(5 citation statements)

References 3 publications

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“…Among S. maeoticus specimens collected and analyzed in 2017, a higher number of bacteria was reported than in the previous year, with the maximum bacterial load in fish from stations 2 (4 × 10 3 CFU/g), 3 (1 × 10 4 CFU/g) and 11 (2 × 10 4 CFU/g), where the depth was between 38 and 61 m, and we add that the specimens analyzed were large, and showed visible signs of illness (Figure 6).…”

Section: Bacterial Diseases and Their Impact On S Maeoticus Populatio...mentioning

confidence: 88%

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Epidemiology of Turbot (Scophthalmus maeoticus) Bacterial Contamination, a Fishery Limiting Factor on the Romanian Black Sea

Țoțoiu

Patriche²,

Niță

et al. 2023

Fishes

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The aim of this research was to evaluate the health status of the Scophthalmus maeoticus (Pallas, 1814) population from the Romanian marine area in 2016–2019, by identifying and investigating information about bacterial and constitutional diseases, establishing the influence of these bacterioses on the researched populations, and highlighting the main biological disorders (reproduction, growth, and feeding) that manifested in the analyzed fish. The bacterial diseases reported in S. maeoticus (Pallas, 1814) populations were caused by pathogens from the genera Vibrio, Aeromonas, and Pseudomonas. Numerous skin diseases, especially various types of “wounds”, lesions of bony tubercles, and tissue lesions may be the subsequent cause of neoplasms, as a result of fishing gear manipulations. The appearance of significant changes in the prevalence of neoplasia on the Romanian Black Sea coast can be considered an indicator of chronic stress (anthropogenic impact), rather than acute (environmental impact), and we suggest that the species could be used as a biological indicator of changes that may occur in the habitat in which it lives. In terms of future research directions, a combined analysis of the population structure, morphology and diseases determined in S. maeoticus populations, with a structural analysis of the habitat and bacteria contamination degree would be useful; this monitoring should be carried out regularly, to reveal changes in the Black Sea ecosystem, and to propose possible recommendations and protective measures.

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Section: Bacterial Diseases and Their Impact On S Maeoticus Populatio...mentioning

confidence: 88%

“…Researchers from the Biological Station of Sevastopol (BBS) conducted a first attempt to assess the health status of the S. maeoticus spawning population from 2007 to 2010. The preliminary health status analysis showed that at least 20% of adult fish showed clear signs of various diseases [3].…”

Section: Discussionmentioning

confidence: 99%

Epidemiology of Turbot (Scophthalmus maeoticus) Bacterial Contamination, a Fishery Limiting Factor on the Romanian Black Sea

Țoțoiu

Patriche²,

Niță

et al. 2023

Fishes

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“…As a follow-up, the Scientific, Technical and Economic Committee for Fisheries (STECF) assessed the updated Joint Recommendation presented and noted that improvements to the information provided were needed. The Commission has recognised the existence of scientific studies demonstrating the high survivability of turbot caught by vessels from non-EU countries fishing with gillnets in the Black Sea (Bașaran & Samsun, 2004;Samsun & Kalayci, 2005;Giragosov & Khanaychenko, 2012). Having regard to the fact that the studies cited relate to the same maritime basin, the same species and gears as included in the exemption requested by Romania and Bulgaria, the Commission considered that this Joint Recommendation should be taken into account for the purposes of granting the exemption.…”

Section: Aims and Backgroundmentioning

confidence: 99%

Turbot Survivability, Catches and Gillnet-Caused Injuries. Scientific Support for the Exemption from the Landing Obligation in EU Black Sea Countries

Niță¹,

Nenciu²,

Danilov³

et al. 2022

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The European Common Fisheries Policy aims to gradually eliminate discards in all European Union fisheries through the introduction of a landing obligation for all catches of species subject to catch limits (turbot and sprat for the Black Sea). In 2016, the Commission established a discard plan for turbot fisheries in the Black Sea, that provided for a survivability exemption of turbot caught with bottom-set gillnets, applied from 1 January 2017 until 31 December 2019. Subsequently, Romania and Bulgaria submitted an updated Joint Recommendation to the Commission, requesting the renewal of the discard plan and the survivability exemption based on the high survival rates of this species. The Scientific, Technical and Economic Committee for Fisheries (STECF) acknowledged the existence of data demonstrating the high survivability of turbot caught by vessels from non-EU countries using the same gears, however they requested that Member States concerned should submit additional data on survival estimates relating to the gillnet fishery for turbot. In this context, NIMRD “Grigore Antipa“ was commissioned by the Romanian National Agency for Fisheries and Aquaculture (NAFA) to perform a pilot study aiming at obtaining scientific evidence for the exemption of turbot from the landing obligation, carried-out during January-April 2022. Scientific fishing was performed in the Romanian marine area with specialized gears - turbot gillnets on board of NIMRD’s boat. The methodology consisted of launching the gillnets in established locations and recovering them after a soaking time depending on weather conditions. After each operation to recover the nets from the water, all turbot specimens caught were retained on board, parked in a fiber-reinforced polymer (FRP) container filled with seawater and equipped with an aeration system. The specimens were kept in the tank for 1 hour, during which time they were monitored from the point of view of their condition (dead, alive, injuries, other negative effects produced by the fishing gear). Subsequently, all turbot specimens declared viable were released back into the sea. The results indicate high survivability rates of turbot caught in gillnets (81.67%). Some injuries were reported in the dead specimens, probably caused by the mechanical action of the gear.

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“…Formally, this species is managed as a single stock across the Black Sea (GFCM 2019), although localized subpopulations do exist (Giragosov and Khanaychenko 2012) and there remains the need to account for those units in spatially resolved stock assessment models (M. Cardinale pers. comm.…”

Section: Atlanticmentioning

confidence: 99%

Scophthalmus maximus (turbot)

2022

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Untitled

Cited by 8 publications

References 3 publications

Epidemiology of Turbot (Scophthalmus maeoticus) Bacterial Contamination, a Fishery Limiting Factor on the Romanian Black Sea

Epidemiology of Turbot (Scophthalmus maeoticus) Bacterial Contamination, a Fishery Limiting Factor on the Romanian Black Sea

Turbot Survivability, Catches and Gillnet-Caused Injuries. Scientific Support for the Exemption from the Landing Obligation in EU Black Sea Countries

Scophthalmus maximus (turbot)

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