Evaluation of economic efficiency of the pollock fishery in the Okhotsk Sea in the case of legitimate by-catch of small-sized fish
Legitimation of the by-catch of small-size pollock is proved, and other way of the pollock fishery efficiency increasing is proposed, as processing of the by-catch of non-commercial fish. For these purposes, long-term data on the size-weight structure of pollock in the Okhotsk Sea are analyzed. The portion of small-sized pollock is estimated as 29.5 %, on average. Actual mean daily catch for pollock fishery is determined as 63.7 t for the most numerous type of fishing vessel - BFFT "Prometheus". Using this estimation, possible catch of a vessel during the whole period of the pollock fishery in the Okhotsk Sea is estimated as 4650 t; however, its actual volume is lower, e.g. 3738.7 in 2007, because of the quota limitation. Daily catch of small-sized fish per day is calculated as well for a vessel of this type. The catch 4650 t provides financial income 7.38 mln roubles per a vessel, taking into account the payment for the resources. In the case of the whole by-catch processing, the profit will be higher - up to 20.75 mln roubles, also taking into account this payment. So, the profitability increases from 6.6 % to 16.7 %. Such significant gain is reasoned by accounting the payment for the resource of the small-sized fish in both cases, whereas it is utilized in the second case only.