The Latvian Redfish Fishery in NAFO Regulatory Area in 2006
Redfish (Sebastes mentella) is one of the main fishery objects at Northern Atlantic, both Eastern and Western1. Datum on catch, effort, CPUE and size distribution of redfish by periods and divisions are presented. Material and Methods Author has fulfilled duties of NAFO Observer at Latvian fishing s...
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| Format: | Text |
| Language: | English |
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2007
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.532.2482 http://archive.nafo.int/open/sc/2007/scr07-002.pdf |
| Summary: | Redfish (Sebastes mentella) is one of the main fishery objects at Northern Atlantic, both Eastern and Western1. Datum on catch, effort, CPUE and size distribution of redfish by periods and divisions are presented. Material and Methods Author has fulfilled duties of NAFO Observer at Latvian fishing ship in June-August 2006. Measurements of redfish (total length and weight) were made. Ship used mid-water trawl "Gloria " with mesh size in cod end 130mm. Redfish was caught at Divisions 1F, 2G and 2H from 06/06/29 till 06/08/11. Depths of trawling changed between 214 and 359 m. Main and only fish at hauls was redfish; by-catch was practically absent. Results Total catch of redfish in NRA was 353 710 t (see Table 1). 71.4 % of total catch was taken in Div. 1F, 21.8 % in Div. 2J and 6.7 %- in Div. 2H. Most part of fish was taken in Div. 1F, while CPUE was higher in Div. 2J and 2H, but only on short period at the end of July. Length distribution of redfish by Division and sex are shown at Table 2, and mean length and weight characteristics are shown at Tables 3 and 4. Biggest fish was caught at Div. 2H division, and smallest – at Div. 2J. Males predominated over females at all divisions and at all months. Females were bigger than males approximately at 1cm |
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