scholarly journals Capture-induced physiological stress and postrelease mortality for Southern bluefin tuna (Thunnus maccoyii) from a recreational fishery

2016 ◽  
Vol 73 (10) ◽  
pp. 1547-1556 ◽  
Author(s):  
Sean R. Tracey ◽  
Klaas Hartmann ◽  
Melanie Leef ◽  
Jaime McAllister
Keyword(s):  
Blood Plasma ◽  
Sample Size ◽  
Physiological Stress ◽  
Bluefin Tuna ◽  
Physical Damage ◽  
Biochemical Indicators ◽  
Southern Bluefin Tuna ◽  
Increase Sample Size ◽  
Significant Factors ◽  
In Blood Plasma

Southern bluefin tuna (SBT; Thunnus maccoyii) are a popular component of the recreational large pelagic game fishery in Australia. The fishery is managed using individual fisher catch limits. Fifty-nine pop-up archival transmitting (PAT) tags were attached to individual SBT to estimate postrelease survival (PRS) rates. Fish caught on lures configured with J-hooks (n = 44) and those caught on circle hooks (n = 8) had similar PRS rates and were combined to increase sample size, revealing a PRS estimate of 83.0% (95% CI: 75.9%–90.7%, n = 54). The PRS estimate of fish caught on lures with treble hooks was much lower, 60% (95% CI: 20%–100%, n = 5). By sampling blood from 233 fish, including 56 of the PAT-tagged individuals, we show that angling duration is related to an elevation of lactate, cortisol, and osmolarity in blood plasma, indicative of increased physiological stress. Physical damage related to hooking location, angling duration, biochemical indicators of physiological stress, and handling duration were not identified as significant factors leading to postrelease mortality. The results quantify a previously unaccounted source of mortality for SBT.

Catch and Release in Marine Recreational Fisheries

2002 ◽  
Keyword(s):  
Physiological Stress ◽  
Atlantic Coast ◽  
Bluefin Tuna ◽  
Recreational Fisheries ◽  
Physical Damage ◽  
Management Tools ◽  
Physical Trauma ◽  
Atlantic Bluefin Tuna ◽  
Catch And Release ◽  
Primary Management

<em> Abstract</em>.—Catch quotas, bag limits, and minimum sizes have been the primary management tools to limit mortality in U.S. Atlantic bluefin tuna <em> Thunnus thynnus </em>fisheries. As a result of these regulations, increasing numbers of bluefin tuna are released annually by recreational and commercial fishermen. Post-release survival is highly dependent on the degree of physiological stress and physical trauma experienced by the fish. The type of terminal fishing tackle strongly influences hook location in the fish, as well as the degree of hook damage. This study compared the performance of circle hooks to straight hooks, relative to hooking location, damage, and catching success in natural bait fisheries for bluefin tuna that are practiced on the U.S. Atlantic coast. During the summers of 1997–1999, fishing trips were made offshore of Virginia and Massachusetts to catch juvenile bluefin tuna with comparable size circle hooks (sizes 10/0–12/0) and straight hooks (sizes 5/0–8/0), while drifting with natural bait. A total of 101 bluefin tuna was caught and dissected to quantify hooking location and to assess the extent of hooking damage. There was a significant association between hook type and hook location (<em> p </em>< 0.05). Ninety-four percent of the bluefin tuna caught on circle hooks were hooked in the jaw, and four percent were hooked in the pharynx or esophagus. Fifty-two percent of the bluefin tuna caught on straight hooks were hooked in the jaw, and thirty-four percent were hooked in the pharynx or esophagus. Based on the observed hook damage, we estimated that release mortality would have occurred in four percent of the bluefin tuna caught on circle hooks and twentyeight percent caught on straight hooks. The ability of each hook type to hook and hold tuna was significantly different; however, overall catching success was similar. This comparison indicates that circle hooks cause less physical damage than straight hooks, while catching juvenile bluefin tuna, using natural baits and can be a valuable conservation tool in these recreational fisheries.

scholarly journals Evaluation of biochemical indicators in blood plasma of rats with tetracycline-induced hepatosis and their correction by milk phospholipids

2019 ◽  
Vol 91 (1) ◽  
pp. 92-99
Author(s):  
V. A. Gryshchenko ◽  
◽  
V. V. Musiychuk ◽  
V. O. Chernyshenko ◽  
O. V. Gornytska ◽  
...  
Keyword(s):  
Blood Plasma ◽  
Biochemical Indicators ◽  
In Blood Plasma

State of hormonal regulation in experimental animals exposed to noise and vibration

2020 ◽  
pp. 680-681
Author(s):  
A. V. Lizarev ◽  
V. A. Pankov
Keyword(s):  
Blood Plasma ◽  
Hormonal Regulation ◽  
Adrenocorticotropic Hormone ◽  
Vibration Exposure ◽  
Noise And Vibration ◽  
Experimental Animals ◽  
In Blood Plasma

When exposed to noise and vibration in experimental animals there was a decrease in the content of threeiodinethyronine, thyroxin and adrenocorticotropic hormone in blood plasma after 15 and 30 days of experience. An increase in loads led to an increase in the level of threeiodinethyronine and thyroxin under vibration exposure and was normalized with noise. The content of adrenocorticotropic hormone leveled in both cases.

EFFECT OF DIETARY LEVELS OF SODIUM AND POTASSIUM ON GROWTH AND ON CONCENTRATIONS IN BLOOD PLASMA AND TISSUES OF WHITE RAT

1950 ◽  
Vol 162 (1) ◽  
pp. 182-188 ◽  
Author(s):  
J. H. Meyer ◽  
R. R. Grunert ◽  
Marie T. Zepplin ◽  
R. H. Grummer ◽  
G. Bohstedt ◽  
...  
Keyword(s):  
Blood Plasma ◽  
Sodium And Potassium ◽  
In Blood Plasma

Two SPRi biosensors for the determination of cathepsin S in blood plasma

Talanta ◽  
2021 ◽  
Vol 225 ◽  
pp. 121900
Author(s):  
Lukasz Oldak ◽  
Anna Sankiewicz ◽  
Beata Żelazowska-Rutkowska ◽  
Bogdan Cylwik ◽  
Zenon Lukaszewski ◽  
...  
Keyword(s):  
Blood Plasma ◽  
Cathepsin S ◽  
In Blood Plasma

scholarly journals DETERMINATION OF TRYPSIN INHIBITOR IN BLOOD PLASMA

1953 ◽  
Vol 204 (1) ◽  
pp. 147-152 ◽  
Author(s):  
Shirley F. McCann ◽  
M. Laskowski
Keyword(s):  
Blood Plasma ◽  
Trypsin Inhibitor ◽  
In Blood Plasma

scholarly journals The comparison of pro- and antioxidative parameters in plasma and placental tissues during early phase of placental development in cows

2021 ◽  
Author(s):  
Jacek Wawrzykowski ◽  
Monika Jamioł ◽  
Wioleta Mojsym ◽  
Marta Kankofer
Keyword(s):  
Blood Plasma ◽  
Antioxidative Enzymes ◽  
Placental Development ◽  
Blood Samples ◽  
Bovine Placenta ◽  
Total Antioxidant ◽  
Tissue Homogenates ◽  
Further Development ◽  
General Profile ◽  
In Blood Plasma

AbstractPhysiological balance between pro- and antioxidative processes is crucial for placentation and further development of fetus and placenta. Parameters of pro- and antioxidative profile may serve as markers of proper course of pregnancy. The aim of study was to assess whether the balance between pro- and antioxidative parameters during placentation phase in bovine placenta is maintained. Placental and blood samples were collected from healthy, HF, pregnant (2nd-3rd month) cows (n = 8) in slaughterhouse and in farm, respectively. Formylokinurenine and bityrosine content were measured spectrofluorimetrically in blood plasma and tissue homogenates while metabolites of lipid peroxidation, total antioxidant capacity, SH groups and activity of antioxidative enzymes (glutathione peroxidase and superoxide dismutase) were determined in examined tissues by spectrophotometry. Western blotting was used to confirm the presence of enzymatic proteins in placenta. Results: Local profile in tissues was more pronounced than general profile in blood plasma. Activities of antioxidative enzymes were significantly (p < 0.05) higher in 2nd compared to 3rd month of pregnancy in maternal part of placenta while prooxidant parameters showed opposite relationship. Obtained results showed significant differences when compared to data from non-pregnant animals or time of parturition. Further studies are necessary for elucidation of placentation phase in cows.

The convenient UPLS method for the determination of Ceftiofur in blood plasma

2020 ◽  
Author(s):  
Artem V. Baklykov ◽  
Konstantin A. Chistiakov ◽  
Dmitry S. Kopchuk ◽  
Grigory V. Zyryanov ◽  
Gennady L. Rusinov ◽  
...  
Keyword(s):  
Blood Plasma ◽  
In Blood Plasma

scholarly journals AB0049 RELATIONSHIP OF RHEUMATOID FACTOR AND XANTHINE OXIDOREDUCTASE ENZYMATIC CONSTITUENTS IN SEVERAL BLOOD COMPARTMENTS OF RHEUMATOID ARTHRITIC PATIENTS

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1057.1-1057
Author(s):  
S. Bedina ◽  
A. Trofimenko ◽  
E. Mozgovaya ◽  
M. Mamus ◽  
S. Spitsina
Keyword(s):  
Blood Plasma ◽  
Rheumatoid Factor ◽  
Xanthine Oxidase ◽  
Xanthine Dehydrogenase ◽  
Enzymatic Activities ◽  
Systemic Autoimmune Disease ◽  
Ros Generation ◽  
Reference Ranges ◽  
Xanthine Oxidoreductase ◽  
In Blood Plasma

Background:Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by the presence of rheumatoid factor (RF) and anticitrulline autoantibodies. Recent evidences suggest that impairment of neutrophil extracellular traps (NETs) could exert substantial influence on RA pathogenesis. The production of NETs depends heavily on the ROS generation. One of its mechanisms is xanthine oxidoreductase (XOR) mediated degradation of purine metabolites. Analysis of pro-oxidant activity of the enzymatic complex XOR and its constituents, xanthine oxidase (XO) and xanthine dehydrogenase (XDG), is an issue of considerable interest in this context.Objectives:Evaluation of XO and XDG activities in RF-positive and RF-negative RA using both plasma and lysed lymphocyte samples.Methods:The research was carried out in agreement with the WMA Declaration of Helsinki principles. Diagnosis of RA had been verified using ACR/EULAR 2010 criteria. Enzymatic activities in plasma and lymphocytes were measured spectrophotometrically and expressed as nmol/min/ml. Enzymatic activities in lymphocytes were also normalized to 1×107 cells/ml. Statististical tests were selected in line with common guidelines. Differences were considered significant when p<0.05. Reference ranges were calculated as means ±2SD.Results:75 adult RA patients (52 females and 23 males, mean age 43.9±0.97 years, mean disease duration 8.5±0.3 years) from the rheumatology unit of Volgograd Clinical Emergency Hospital #25 as well as 35 healthy controls were included in the study. RF-positive RA and RF-negative RA were observed in 49 (65.3%) and 26 (34.7%) patients, respectively. Reference ranges for plasma and lymphocyte XO activities were 2.60-3.96 and 14.2-27.8 nmol/min/ml, respectively. Similar ranges for XDG activities were 4.49-5.93 and 22.5-40.7 nmol/min/ml, respectively. Enzymatic profile of RA patients is characterized by significantly increased XO activity in plasma and decreased XO and XDG activities in lymphocytes (р<0.001). XO activity is increased (p<0.001), XDG activity is decreased (p<0.001) in blood plasma of patients with RF-negative RA, while the activity of both enzymes is decreased in lymphocytes (p<0.001). XO activity (p<0.001) and XDG activity (p<0.05) is increased in blood plasma, XO activity and XDG activity are decreased (p<0.001) in lymphocytes of patients with RF-positive RA. Plasma XO and XDG activities are also higher, and lymphocyte XO and XDG activities are lower in patients with RF-positive RA than in patients with RF-negative RA (р<0.001).Conclusion:Our study revealed the relationship between enzyme parameters and rheumatoid factor presence. More pronounced changes in the enzyme activities were observed in patients with RF-positive RA. These results demonstrate that activation of the xanthine oxidase/xanthine dehydrogenase enzyme complex is an substantial factor of induction and continuation of the autoimmune rheumatoid inflammation.Disclosure of Interests:None declared

Sign in / Sign up

Export Citation Format

Share Document