Swimming endurance of American plaice (Hippoglossoides platessoides) and its role in fish capture

Winger, Paul D.; He, Pingguo; Walsh, Stephen J.

doi:10.1006/jmsc.1999.0441

Cited by 76 publications

(55 citation statements)

References 28 publications

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“…The water-flow velocity of 0.6 m/s in this experiment equated to about eight BL/s for juvenile bastard halibut, and their endurance has been estimated at more than 25-min (Hashimoto et al, 1996;Kim and Wardle, 1997;Winger et al, 1999). Therefore, the relative flow velocity of 0.6 m/s was regarded as reasonable in relation to a bottom trawl towing speed of 1.5 m/s, considering the swimming speed and endurance of 20-cm juvenile bastard halibut under natural conditions (He, 2003;Kawabe et al, 2004).…”

Section: Resultsmentioning

confidence: 86%

Effects on the Escapement of Juvenile Bastard Halibut Paralichthys olivaceus of Actively Stimulating Devices Inside a Model Cod End

Kim¹

2011

Fisheries and aquatic sciences

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The effects of actively stimulating devices (ASD) on juvenile flatfish escape were studied to increase escape rates from the cod end by encouraging fish to approach the net wall. Two kinds of ASD were designed: a fluttering net panel, i.e., a free-end flag-like net panel, and a double conical rope array. Escape responses of juvenile bastard halibut were observed in a circulating water channel using two model cod ends, one made with diamond-shaped 43-mm-mesh-size polyethylene (PE) as a high-contrast cod end and the other with polyamid (PA) mono-ply as a low-contrast cod end. Retention rate was significantly lower with the double conical rope-array ASD in the PE cod end than with conventional PE cod ends only or the fluttering net-panel ASD inside the PE cod end. Mean retention rate with the low-contrast PA cod end was also significantly lower than that with the high-contrast PE conventional cod end. Therefore, active fluttering devices using a double conical rope array together with less visible low-contrast netting in the cod end could help to reduce the bycatch of juvenile flatfish by weakening their optomotor response and actively driving fish to the side net panel.

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Section: Resultsmentioning

confidence: 86%

Effects on the Escapement of Juvenile Bastard Halibut Paralichthys olivaceus of Actively Stimulating Devices Inside a Model Cod End

Kim¹

2011

Fisheries and aquatic sciences

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“…Biomechanical models show that burst-coasting may be 4-6 times more efficient than steady swimming (Videler and Weihs, 1982;Winger et al, 2000). We examined whether the number of burst-coast movements could explain variability in Ucrit, as found by Winger et al (1999). Such a relationship was only apparent for the starved cod taken alone.…”

Section: Discussionmentioning

confidence: 98%

Does condition of Atlantic cod (Gadus morhua) have a greater impact upon swimming performance atUcrit or sprint speeds?

Martínez

Bédard

Dutil³

et al. 2004

Journal of Experimental Biology

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the Ucrit tests, white muscle lactate levels and lactate accumulation per burst-coast movement were considerably higher in fed than starved cod, suggesting more intensive use of fast muscle fibres in cod in good condition. Multiple regression analysis indicated strong correlations between U crit, the speed at which regular burst-coasting began and the activity of pyruvate dehydrogenase (PDH) in red muscle (both caudal and central positions). PDH activity may limit the rate of oxidative ATP production by red muscle. The activity of cytochrome c oxidase in rostral white muscle was the strongest correlate of sprint swimming, suggesting that aerobic preparation of white muscle facilitates rapid contraction. The correlation between Ucrit and sprint swimming was weak, perhaps due to inter-individual differences in sensitivity during sprint tests.

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“…Longitudinal differences in enzyme activity were examined within each feeding group, using models in which site of sampling was the factor and a posteriori comparisons established specific differences. Failure time analysis was used to assess the effect of the variables on swimming endurance (Winger et al, 1999(Winger et al, , 2000. Given that cod swam for a minimum of 20 min before reaching the target speed (1.8 BL s -1 ), we used the time swum by fish from 0.5 BL s -1 until exhaustion as the dependent variable.…”

Section: Calculations and Statistical Analysismentioning

confidence: 99%

“…This allowed us to include the six starved cod that did not attain the target speed. Time swum was analysed using the Cox proportional hazards model (Cox and Oakes, 1984;Winger et al, 1999). Due to the large number of variables, as well as their probable colinearity, we preselected variables before their inclusion.…”

Section: Calculations and Statistical Analysismentioning

confidence: 99%

Condition, prolonged swimming performance and muscle metabolic capacities of codGadus morhua

Martínez

Guderley

Dutil³

et al. 2003

Journal of Experimental Biology

153

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SUMMARYThis study evaluated the link between swimming endurance and condition of Atlantic cod Gadus morhua that had been fed or starved during the 16 weeks preceding the tests, and assessed whether muscle metabolic capacities explain such links. The condition factor [(somatic mass × fork length-3)×100] of starved cod was 0.54±0.1 whereas that of fed cod was 0.81±0.1. In white and red muscle, we measured four glycolytic enzymes: phosphofructokinase (PFK), pyruvate kinase (PK), creatine kinase (CK) and lactate dehydrogenase (LDH), two mitochondrial enzymes:cytochrome c oxidase (CCO) and citrate synthase (CS), a biosynthetic enzyme, nucleoside diphosphate kinase (NDPK), glycogen and protein levels and water content. Muscle samples were taken at three positions along the length of the fish; starvation affected the metabolic capacities of white muscle more than those of red muscle. The levels of glycolytic enzymes and glycogen changed more in white than red muscle during starvation. Both in fed and starved cod, muscle metabolic capacities varied with position along the fish;starvation reduced this longitudinal variation more in white than red muscle. In white muscle of fed cod, the glycolytic enzyme levels increased from head to tail, while in starved cod this longitudinal variation disappeared. In red muscle mitochondrial enzyme levels were highest in the caudal sample, but fewer differences were found for glycolytic enzymes. Swimming endurance was markedly affected by fish condition, with starved fish swimming only 30% of the time (and distance) of fed fish. This endurance was closely linked with the number of burst—coast movements during the test and the activity of CCO and LDH in white muscle. The number of burst—coast movements was significantly linked with condition factor and PFK activity in caudal red muscle and gill arch mass. Our data indicated that cod use both glycolytic and oxidative capacities to support endurance swimming. Furthermore, swimming endurance is linked with the metabolic capacities of red and white muscle.

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Swimming endurance of American plaice (Hippoglossoides platessoides) and its role in fish capture

Cited by 76 publications

References 28 publications

Effects on the Escapement of Juvenile Bastard Halibut Paralichthys olivaceus of Actively Stimulating Devices Inside a Model Cod End

Effects on the Escapement of Juvenile Bastard Halibut Paralichthys olivaceus of Actively Stimulating Devices Inside a Model Cod End

Does condition of Atlantic cod (Gadus morhua) have a greater impact upon swimming performance atUcrit or sprint speeds?

Condition, prolonged swimming performance and muscle metabolic capacities of codGadus morhua

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