kingfish in unsafe conditions like those below, it’s just an observation from days running charter boats when I seldom got to pick the weather we worked in. Marlin and tuna Much is said about turquoise blue water and its importance when fishing for pelagics such as marlin and tuna. In fact, I would say too much is said on the topic, the result being well intentioned gamefishermen trolling ever wider from the coast in search of perfect purple water in belief that "here is where the big fish will be found". Occasionally one of these wild blue wanderers will get lucky, perpetuating the myth. Most, however, will miss out, having driven past the fish hours ago on their way to the distance horizon.
Clean, blue water is important to marlin, but so is food. Food tends to be found in the convergence zone between cooler, slightly greener water and the warm blue stuff coming down from the tropics. Smart fishermen know that if you hang out in the food zone, it’s only a matter of time before you get a bite.
Many of the best fishing spots are subject to strong currents. This can cause the water colour to change during the tide cycle. The King Bank is a great example of a spot that might be green and fishless for a few hours only to become blue and red hot with hungry billfish with the change of tide. Observation and patience is key to success here. We cover the “fish the birds” topic repeatedly in NZ Fishing World, and for good reason. No other signpost is more reliable for the instinctive fish hunter than the feathered fish-finder.
Gannets Most readers will already be familiar with chasing gannets. The only comment I would make is to align the behavior you are observing with a Solunar bite time table. Fat, lazy gannets sitting around on the water an hour or so after the bite time has past are a sure sign action awaits the patient fisherman. Note the next bite time and aim to return to the area for the next feeding session if nothing productive is found in the interval.