Ovoviviparous fish – Fish whose eggs are fertilized and hatched within the female’s body. The eggs are enclosed in separate membranes and the embryos within them receive no nourishment from …
K to O
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Oviparous fish – Fish that lay eggs from which the young later hatch.
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Overhead cast – The basic casting style where the rod is pulled straight over the head and the lead starts in the air.
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Over-run – see Backlash
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Outrigger – A pole device used when trolling to spread baits or lure out from the side of the boat.
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Operculum – The plate which covers the gills.
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Off the ground – A casting style where the terminal tackle is laid out on the beach with the lead straight out behind the angler prior to casting.
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Nylon monofilament – A single strand of nylon used both as main line and for producing traces and rigs. Also known simply as mono or nylon.
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Nuisance fish – Any fish which is not the target species.
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Non-return slide – a wire boom which is designed only to move in one direction when line is under tension. Used for sliding baits.