Marine fishes in the Black Sea: recent conservation status

Yankova, Maria; Pavlov, Danail; Ivanova, Petya; Карпова, Е. П.; Болтачев, А. Р.; Öztürk, Bayram; Bat, Levent; Oral, Muammer; Mgeladze, Marina

doi:10.12681/mms.700

Cited by 32 publications

(17 citation statements)

References 24 publications

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“…According to the latest documents prepared by Yankova et al . (2011), it is in the Red Data Book of the Bulgarian Black Sea, while it was notified as ‘vulnerable’—a high risk of endangerment in the wild—in Turkey. There is insufficient data to make an assessment of its risk of extinction in Romania, there is a low risk in Georgia and Ukraine and no data are available from Russia.…”

Section: Introductionmentioning

confidence: 99%

The relationship between fish size and otolith dimensions of stargazer (Uranoscopus scaber) in the south-eastern Black Sea

Sağlam

2014

J. Mar. Biol. Ass.

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Relations between fish size and otolith size of stargazer (Uranoscopus scaber) were studied in this study. A total of 268 samples were obtained from the coastal shelf of Ordu Province (south-eastern Black Sea) by commercial trawling and gillnetting operations. It was found that there were high correlations between fish size and otolith size. It was concluded that all measurable body sizes could be effectively used to estimate otolith length, width and weight. Similarly, estimation of the age of fish from otolith length and weight was also possible with high significance. The results of this research will be useful for others working on this fish, being a first study in the field. The ages of stargazer were determined between 0+ and 4+. Relationships were determined as OW ¼ 0.001 × OW i 2.76 , OW ¼ 0.35 × 10 23 × OL 2.54 with high correlation coefficients of r ¼ 0.965 and r ¼ 0.949, respectively.

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Section: Introductionmentioning

confidence: 99%

The relationship between fish size and otolith dimensions of stargazer (Uranoscopus scaber) in the south-eastern Black Sea

Sağlam

2014

J. Mar. Biol. Ass.

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“…In study, it was determined that 22 species those corresponding 63% of identified species in Düzce coast trawling composition was in least concern (LC) level. This rate is different from all Black Sea (26.46%) (Yankova et al, 2014), and similar to Düzce coast marine fish fauna (Yaglioglu, 2016). In this study, of the species within Düzce coast trawling composition, 14% is determined as "Vulnerable" 6% as "Critically Endangered", 6% as "Data Deficient" and 11% as "Not Evaluated" after the review of their red list statuses.…”

Section: Resultsmentioning

confidence: 46%

Catch Composition of Bottom Trawl Fisheries in Düzce Coast, southwestern Black Sea

Öğreden¹,

Yağlıoğlu²

2017

Natural and Engineering Sciences

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This study was performed to identify the catch composition of Düzce coast (southwestern Black Sea) at depths of 30-110 meters by bottom trawl between September 2014 and August 2015. In the catch compositions of the Düzce coast, the abundance of the first, second and third species were Merlangius merlangus with 73.12% (1290.29 kg / km 2 ), Gobius spp. with 9.30% (164.04 kg/km 2 ) and Mullus barbatus with 9.05% (159.61 kg / km2), respectively. The other 33 species make up 8.53% of total fish biomass. When seasonal distribution was examined, the total catch of fish were 1038. 54, 2552.37, 1068.72, 5132.96 kg/km 2 , of which economic (target) fish species (Merlangius merlangus) constitute 745.72, 1726.14, 724.58, 4910.15 kg/km 2 in autumn, winter, spring and summer respectively. In this study, fishing a very high rate of discard whiting in little sizes draws the attention. Whiting constitutes 56% of discard. Single or sporadic captures were also recorded for Acipenser stellatus, Trachurus trachurus, Spicara smaris, Lophius piscatorius, Serranus hepatus and Hippocampus hippocampus. Moreover, in this study, red list status for 36 fish species belonging to 27 family in Düzce coasts were considered with the Red List published by the International Union for conservation of Nature and Natural Resources (IUCN). As a result of this comparison, it was determined that 2 species Critically Endangered (CR), 5 species Vulnerable (VU), 22 species Least Concern (LC), 4 species Not Evaluated (NE), 2 species Data Deficient (DD).

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“…The length-weight relationship is widely used in the analysis of fishery data (28,29), mostly because of the difficulty and time required to record weight in the field (30). The relationship is often used to convert growth-in-length equations for prediction of weight-at-age and used in stock assessment models (31), to calculate condition indices (32) and for lifetime and morphological comparison of populations from various regions (33 A sum of 3455 authorized fishermen and 536 fishing boats are present in the Sinop region with ports like Gerze and Ayancık (37).…”

Section: Discussionmentioning

confidence: 99%

Fishery of Sinop Coasts in the Black Sea Surveys

Bat¹,

Şahin²,

Sezgi̇n³

et al. 2019

Eur J Biol

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Objective: The current work was carried out between 2013-2014 during the fishing periods to evaluate certain fish aggloremations within 3 miles of the coastal zone. Therefore, some basic characteristics of fish populations along the Inceburun coast of the Sinop province of the Black Sea were examined. Materials and Methods:Data was collected from 5 trawl operations in the Sinop-Inceburun Region of the Black Sea at depths of 20 to 39 meters at 5 different locations. Biometric measurements of each species was made. A literature search was performed to gather information about the status of threatened fish species found in the region. The length-weight parameters of 4 commercial fish species were estimated. Results:During the fishing season between 1 st September 2013 and 15 th April 2014 different fish species were captured depending on the season and climate. In these surveys, 16 teleost species from 15 families, 2 elasmobranch species from 2 families and 2 species of invertebrates were recorded from 5 different stations. In these surveys random samples of red mullet, bluefish, horse mackerel, turbot etc. were collected from 5 different stations. The total mean CPUA was estimated at 425.30 kg/km 2 . Conclusion:The Black Sea areas including those around the Sinop coast have an important effect on the entire production of sea fish of the Turkish fishery. In addition, Sinop fisheries generate significant fishery production supporting logistics and employment. In the Sinop peninsula, there is an increasing trend towards the production of commercial species of the Black Sea.

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Marine fishes in the Black Sea: recent conservation status

Cited by 32 publications

References 24 publications

The relationship between fish size and otolith dimensions of stargazer (Uranoscopus scaber) in the south-eastern Black Sea

The relationship between fish size and otolith dimensions of stargazer (Uranoscopus scaber) in the south-eastern Black Sea

Catch Composition of Bottom Trawl Fisheries in Düzce Coast, southwestern Black Sea

Fishery of Sinop Coasts in the Black Sea Surveys

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