Table 1 in Catching carp: a review of bigheaded carp capture strategies

Table 1. Summary of active and passive sampling gears and attributes used to capture bigheaded carp (Hypophthalmichthys spp.) across larval, juvenile, and adult life stages.
ApproachGearLife stageUnitsGear attributesActivePush netEggs, LarvaedensitySingle or dual conical nets, 0.5 m diameter, 2.0 m long, 0.8 mm meshNueston netEggs, Larvaedensity1 × 2 m, 500 µm meshSurface plankton netEggs, Larvaedensity0.5 diameter opening, 2-m length, 500 µm meshBongo netEggs, Larvaedensity0.6 cm diameter opening, 333 µm meshCast netJuvenileper cast2.7 m diameter; 10 mm meshSeine–BeachJuvenileper haul10 m length, 3–5 mm meshSeine–PurseJuvenileper haul122 × 3.05 m, with 2.5 cm meshSeine–ContractedJuvenile, Adultper haulVarying set lengths; mesh size range 1.6–5.1 cmTrawl–PaupierJuvenile, AdultCPUEStandard amperage adjusted to conductivity, 30 Hz, 15%, 2–4 × 1.5 m frame, 38 mm stretched body mesh to 6 mm mesh codTrawl–ElectrifiedJuvenile, AdultCPUEAmperage adjusted to conductivity, 30 Hz, 15%, 2.13 × 0.9 m frame, 38 mm stretched body mesh to 6 mm mesh codTrawl–DozerJuvenile, AdultCPUETwo seam; 4.8 m wide × 4.5 m long with 18 mm stretch mesh. Bag 1.8 m; Mesh, 3 mmElectrofishing–ACJuvenile, AdultCPUE3-phase, 3 Kw, 230-V, 60 hz; 100–250 V, 3–10 amps, 60–120 hz, 25% Duty cycle, 60–80 pulses/sElectrofishing–DCJuvenile, AdultCPUE180–1000 V, 15–60 Hz, 25–50% duty cycleHydroacousticAdultdensityTwo horizontal-orientated split-beam transducers, 5 pings/s, pulse duration of 0.40 ms, 70 kHz (5 beam angle)–200 kHz (6.6 beam angle)Trammel net–DrivenAdultCPUEHeight, 1.8–3.6 m; Inner panel, 2.5–7.6 cm; Outer panel, 20–34 cm, varying set lengthsGill net–DrivenAdultCPUEHeight, 1.8–3.6 m; Mesh size range:2.54–25.4 cm; Varying set lengthsPassiveDrift netEggs, Larvaedensity0.5 diameter opening, 2-m length, 750 µm mesh, 1-m below surface waterBongo netEggs, Larvaedensity0.6 cm diameter opening, 333 µm meshLight trapsLarvaetrap nightCloverleaf array; 25.0 cm tall with 5.0 mm entry slots. Collection pan with 6 holes cover by 250 µm meshMinnow trapLarvae, juvenilenet nightTrap dimensions, 42 × 19 × 22 cm, baitedMini fyke netJuvenilenet night4.5 × 0.6 m lead, 0.6 × 1.2 m trap 3 mm mesh; some tandem setsHoop netAdultnet nightDiameter, 0.6–1.8 m; Mesh range, 3.8–10 cm; Some tandem setsStop log netAdultnet night25 × 25 cm wood frames; 0.9 m hoops; 1.9 cm meshFyke netAdultnet night0.9 m × 1.8 m frame with 15.2 m × 1.4 m lead, 1.8 to 3.8 cm bar meshPound netAdultnet nightTrap dimensions, 6.1 × 3.1 × 3.1 m; 100 m lead and wingsTrammel netAdultCPUEHeight, 1.8–3.6 m; Inner panel, 2.5–7.6 cm; Outer panel, 20–34 cm, varying set lengthsGill netAdultCPUEHeight, 1.8–3.6 m; Mesh size range: 2.54–25.4 cm; Varying set lengths