scholarly journals Сезонная динамика активности антиоксидантных ферментов крови массовых видов рыб из прибрежной акватории г. Севастополя (Черное море)

2021 ◽  
pp. 16-21
Author(s):  
Е. Н. Скуратовская
Keyword(s):  
Scorpaena Porcus

Изучена сезонная динамика активности антиоксидантных ферментов (каталазы, супероксиддисмутазы, пероксидазы, глутатионредуктазы, глутатион-S-трансферазы) в эритроцитах крови морского ерша Scorpaena porcus, спикары Spicara flexuosa, ставриды Trachurus mediterraneus из прибрежной акватории . Севастополя. Установлено, что активность антиоксидантных ферментов изменяется в течение года, что связанно как с существованием сезонных физиологических ритмов у рыб, особенностями их биологии и экологии, так и с различным уровнем антропогенной нагрузки в каждый период года. При оценке состояния рыб и среды их обитания с использованием изученных параметров в качестве биомаркеров необходимо учитывать пределы их естественной вариабельности, что позволит правильно интерпретировать результаты исследований.

scholarly journals The Spatial Heterogeneity of the Black Scorpionfish, Scorpaena porcus (Scorpaenidae): Differences in Length, Dietary and Age Compositions

2021 ◽  
Vol 11 (24) ◽  
pp. 11919
Author(s):  
Josipa Ferri ◽  
Sanja Matić-Skoko
Keyword(s):  
High Selectivity ◽  
Adriatic Sea ◽  
Multivariate Analyses ◽  
Growth Parameters ◽  
Island Area ◽  
Intraspecific Variations ◽  
Geographical Scale ◽  
Diet Analyses ◽  
Slow Growing ◽  
Scorpaena Porcus

The present study assessed spatial variations in several biological characteristics of Scorpaena porcus Linnaeus, 1758 and estimated length structure, dietary composition and growth parameters for the species. Sampling was carried out in two areas, about 200 km apart, in the coastal Adriatic Sea, which is the northernmost region of the Mediterranean. A total of 388 specimens of S. porcus were caught, 233 from the Split area and 155 from the Pag Island area, and a higher proportion of individuals in the ≤15 cm length classes were found in the Split area. The results of the age, growth and diet analyses demonstrated that the black scorpionfish is a slow-growing and long-lived species that feeds on a wide variety of plant and animal taxa and shows a high selectivity for crustacean decapods. Detailed comparisons and multivariate analyses showed significant fine-scale spatial structuring of the investigated species, as observed length, dietary and age compositions were heterogeneous among the two areas. Fish from the Pag Island area ingested a greater diversity of the prey types, fed to a greater extent on fishes, reached the highest total length and showed a higher growth rate. Such intraspecific variations could reflect adaptations to different environmental conditions and support the geographical scale at which local black scorpionfish populations should be managed.

scholarly journals Scorpaena decemradiata new species (Teleostei: Scorpaenidae) from the Gulf of Aqaba, northern Red Sea, a species distinct from Scorpaena porcus

2018 ◽  
Vol 82 (3) ◽  
pp. 169
Author(s):  
Ronald Fricke ◽  
Daniel Golani ◽  
Brenda Appelbaum-Golani ◽  
Uwe Zajonz
Keyword(s):  
New Species ◽  
Red Sea ◽  
Gulf Of Aqaba ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Fin Ray ◽  
Fin Rays ◽  
Northern Red Sea ◽  
Scorpaena Porcus

The scorpionfish Scorpaena decemradiata n. sp. is described from off the coast of Israel in the Gulf of Aqaba, northern Red Sea. The new species is similar to S. porcus Linnaeus, 1758, but is characterized by dorsal fin spines XII, soft dorsal fin rays 10 (the last divided at base); pectoral fin rays 16, uppermost branched pectoral fin ray is the second; lacrimal with 2 spines over maxilla that point at nearly right angle from each other, the posterior pointing ventrally and slightly anteriorly; occipital pit well developed; anteriormost mandibular lateral-line pores small, separated; scales ctenoid; 59-62 scale rows in longitudinal series; scales absent on chest and pectoral fin base; and cirri developed over entire head and body, but no cirri on lower jaw. An updated checklist of the species of the genus Scorpaena Linnaeus, 1758 and a key to the species of the eastern Atlantic, Mediterranean Sea and Red Sea are presented.

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