Assessment of Food Supply of Small Pelagic Fish in the Black Sea Based on Their Lipid Content

Nikolsky, Victor
Shulman, Georgiy
Shchepkina, Alla
Yuneva, Tatjana
Kıdeyş, Ahmet Erkan
Total lipids in anchovy and sprat were measured and interpreted as indicators of their nutritional condition and food supply for the period 2005 to 2010. High lipid content in anchovies suggested that they were able to found sufficient food and favorable environmental condition supporting their stock biomass on a certain level which was strongly limited by heavy fishing. Wide inter-annual fluctuations in anchovy landings could be caused by variability in yearly recruitment and due to shifts in the spatial distribution patterns of the exploited stock. Unlike anchovy, lipid reserves in sprat declined remarkably to the lowest levels recorded during the 50-year observations period. Such a significant worsening in sprat nutritional condition followed the evident warming of the Black Sea and coincided with a sharp decline in sprat catches off Crimea. Thus, the deterioration of food supply together with intensive fishing could have contributed to the reduction of that local sprat stock.


Present Condition of Small Pelagic Fishes in the Black Sea
Gh, Shulman; Ah, Shchepkına; Kaya, Y; Nıkolsky, Vn; Bat, Levent; Sezgin, M.; Yunev, Ao; Kıdeyş, Ahmet Erkan; Yardım, Ö.; Yuneva, Tv; Seyhan, K. (2011-04-01)
Recent data on the fat content and abundance of sprat and anchovies are considered here along with data related to sea temperatures and phytoplankton biomass. Findings showed that signicant changes in fish conditions were strongly related to environmental factors.
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Canli, Secil Demirkol; Seza, Esin Gulce; Sheraj, Ilir; Gomceli, Ismail; Turhan, Nesrin; Carberry, Steven; Prehn, Jochen H. M.; GÜRE, ALİ OSMAY; Banerjee, Sreeparna (Oxford University Press (OUP), 2020-09-01)
AKR1B1 and AKR1B10, members of the aldo-keto reductase family of enzymes that participate in the polyol pathway of aldehyde metabolism, are aberrantly expressed in colon cancer. We previously showed that high expression of AKR1B1 (AKR1B1(HIGH)) was associated with enhanced motility, inflammation and poor clinical outcome in colon cancer patients. Using publicly available datasets and ex vivo gene expression analysis (n = 51, Ankara cohort), we have validated our previous in silico finding that AKR1B1(HIGH) ...
The relationship between carbon dioxide, crop and food production index in Ghana: By estimating the long-run elasticities and variance decomposition
Sarkodie, Samuel Asumadu; Owusu, Phebe Asantewaa (2017-06-01)
The study estimated the relationship between carbon dioxide, crop and livestock production index in Ghana: Estimating the long-run elasticities and variance decomposition by employing a time series data spanning from 1960-2013 using both fit regression and ARDL models. There was evidence of a long-run equilibrium relationship between carbon dioxide emissions, crop production index and livestock production index. Evidence from the study shows that a 1% increase in crop production index will increase carbon d...
Assessment of pollution in the West Black Sea Coast of Turkey using biomarker responses in fish
BOZCAARMUTLU, AZRA; Sapmaz, Canan; Aygun, Zuleyha; Arinc, Emel (Elsevier BV, 2009-05-01)
Aim of this study was to determine the extent of pollution in the West Black Sea Coast of Turkey by measuring CYP1A associated EROD activity, phase II enzyme, glutathione S-transferase and antioxidant enzymes, catalase and glutathione reductase activities and immunochemical detection of CYP1A protein level in the liver of mullet. The fish samples were caught from six locations having a varying degree of pollution in the West Black Sea Region of Turkey in August 2005, 2006 and 2007. Mullets caught from Zongu...
POLAT, H; Selçuk, Nevin; SOYUPAK, S (1992-10-01)
The effects of hydraulic retention time and alkali treatment on methane production rate from the semicontinuous anaerobic digestion of 2 % sunflower-head/water mixtures were investigated. The experiments were carried out in laboratory-scale fermenters, fed with 1 liter of untreated, 2 g NaOH/100 g total solids (TS), and 5 g NaOH/100 g TS alkali-treated sunflower-head/water mixtures, respectively, and maintained at 55-degrees-C Digestion experiments were performed for hydraulic retention times of 8, 10, and ...
Citation Formats
V. Nikolsky et al., “Assessment of Food Supply of Small Pelagic Fish in the Black Sea Based on Their Lipid Content,” TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES, pp. 429–434, 2012, Accessed: 00, 2020. [Online]. Available: