Body Colour Changes Induced By Spinal Thermal Stimulation Of The Crucian Carp (Carassius Carassius)

1977 ◽  
Vol 68 (1) ◽  
pp. 89-97
Author(s):  
M. NAGAI ◽  
M. IRIKI ◽  
K. S. IWATA
Keyword(s):  
Spinal Cord ◽  
Medulla Oblongata ◽  
Crucian Carp ◽  
Thermal Stimulation ◽  
Carassius Carassius ◽  
Body Colour ◽  
Colour Changes ◽  
Vagal Lobe ◽  
Crucian Carp Carassius Carassius ◽  
Stimulation Of

1. Body colour changes of the crucian carp during spinal thermal stimulation were recorded photoelectrically. 2. Warming the spinal cord induced darkening, whereas cooling induced lightening of body colour. 3. After transection of the medulla oblongata posterior to the vagal lobe, the same colour responses as in intact fish were induced, apart from one of the seven responses to spinal cooling. 4. After spinal pithing, thermal stimulation of the spinal cord failed to induce the responses. 5. The present responses are considered to indicate influence of spinal thermal stimulation on the cutaneous sympathetic systems of this fish.

Hypoxia Tolerance, Nitric Oxide, and Nitrite: Lessons From Extreme Animals

Physiology ◽  
2015 ◽  
Vol 30 (2) ◽  
pp. 116-126 ◽  
Author(s):  
Angela Fago ◽  
Frank B. Jensen
Keyword(s):  
Nitric Oxide ◽  
Marine Mammals ◽  
Crucian Carp ◽  
Physiological Responses ◽  
Oxygen Deprivation ◽  
Hypoxia Tolerance ◽  
Carassius Carassius ◽  
Slider Turtle ◽  
Total Lack ◽  
Crucian Carp Carassius Carassius

Among vertebrates able to tolerate periods of oxygen deprivation, the painted and red-eared slider turtles ( Chrysemys picta and Trachemys scripta) and the crucian carp ( Carassius carassius) are the most extreme and can survive even months of total lack of oxygen during winter. The key to hypoxia survival resides in concerted physiological responses, including strong metabolic depression, protection against oxidative damage and–in air-breathing animals–redistribution of blood flow. Each of these responses is known to be tightly regulated by nitric oxide (NO) and during hypoxia by its metabolite nitrite. The aim of this review is to highlight recent work illustrating the widespread roles of NO and nitrite in the tolerance to extreme oxygen deprivation, in particular in the red-eared slider turtle and crucian carp, but also in diving marine mammals. The emerging picture underscores the importance of NO and nitrite signaling in the adaptive response to hypoxia in vertebrate animals.

scholarly journals Differences in some cranial bones between two Cyprinidae species, Common carp Cyprinus carpio (Linnaeus, 1758) and Crucian Carp Carassius carassius (Linnaeus, 1758) Collected from Tigris River, Iraq

2021 ◽  
Vol 15 (3) ◽  
pp. 225-237
Author(s):  
Muhammad Inad Ghazwan
Keyword(s):  
Common Carp ◽  
Cyprinus Carpio ◽  
Aquatic Environment ◽  
Crucian Carp ◽  
Diagnostic Study ◽  
Carassius Carassius ◽  
Tigris River ◽  
Common Carp Cyprinus Carpio ◽  
Carp Cyprinus Carpio ◽  
Crucian Carp Carassius Carassius

The present study attempts to identify some of the differences between the skull bones of two species Cyprinus carpio and Carassius carassius, which belong to the Cyprinidae family. The study is a taxonomic diagnostic study between the two species which are considered local fish abundant in the Iraqi aquatic environment

Biomarker Responses by Crucian Carp (Carassius Carassius) Living in a Pond of Secondary Treated Pulp Mill Effluent

1999 ◽  
Vol 40 (11-12) ◽  
pp. 123-130 ◽  
Author(s):  
J. V. K. Kukkonen ◽  
E. Punta ◽  
P. Koponen ◽  
J. Paranko ◽  
H. Leppänen ◽  
...  
Keyword(s):  
Crucian Carp ◽  
Pulp Mill ◽  
Resin Acids ◽  
Plasma Testosterone ◽  
Pulp Mill Effluent ◽  
Carassius Carassius ◽  
Male Fish ◽  
Organic Chlorine ◽  
Somatic Index ◽  
Crucian Carp Carassius Carassius

Biochemical and histological biomarkers by the adult crucian carp (Carassius carassius (L.)) living in a biologically treated pulp mill effluent were studied. Enocell pulp mill in Uimaharju, Finland, discharges its effluents through a waste water pond to the River Pielisjoki. This pond harbours an introduced crucian carp population that apparently reproduces on site. The objective of the present study was to measure possible hormonal effects of treated pulp mill effluent on crucian carps living in a wastewater pond. Adult fish were collected for analysis by traps. A reference population was sampled from a small natural pond. Blood and bile samples were taken for analyses of hemoglobin, hematocrit, testosterone, triiodothyronine (T3), thyroxine (T4), vitellogenin, organic chlorine compounds, resin acids and neutral wood-based compounds. In addition, a histological analysis of male gonads was made. The exposed fish had higher concentration of organic chlorine compounds, resin acids and β-sitosterol in bile compared to the reference fish. The same compounds could also be found in sediment of the wastewater pond. The exposed male fish had higher liver somatic index (LSI), lower gonad somatic index (GSI), lower haemoglobin and haemocrit, but higher T3 than in the reference fish. In addition, in an average, increased plasma testosterone concentration and decreased thyroxin (T4) levels were found in the exposed male fish. No vitellogenin production was found in the exposed male fish and some females showed decreased vitellogenin levels. The histological structure of the gonads in the exposed males was normal. The results suggest more anti-estrogenic than estrogenic effects of pulp mill effluents on the crucian carp.

Sign in / Sign up

Export Citation Format

Share Document