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catch per unit effort

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Image
Published: 01 July 2013
Figure 3. Catch per unit effort (CPUE) of R. argentea caught with the 5 mm and 10 mm mesh sizes during experimental surveys conducted between April and September 2001. More
Image
Published: 02 October 2017
Figure 5. Variation (median, quartiles and range) in fish catch per unit effort (biomass per standard 40-m-long gill net per day) in lakes with (Ponto, 4 lakes) and without (Native, 11 lakes) Ponto-Caspian peracaridans (a), and commercial catches in Lake Dusia before (1953–1963) and after (1968 More
Image
Published: 02 January 2021
Figure 4. (a) Catch per unit effort (CPUE) in the Limnothrissa fishery in relation to water temperature at 20 m in March and July; (b) CPUE and the annual discharge of the Zambezi River; (c) the number of fishing vessels in Zambia and Zimbabwe. The horizontal broken lines represent the numbers More
Journal Article
Aquatic Ecosystem Health & Management (2019) 22 (4): 408–416.
Published: 02 October 2019
...-reproductive season of Mosquitofish in four habitat types: Alternanthera philoxeroides habitat, Typha angustifolia habitat, Paspalum distichum habitat, and no vegetation habitat. Mosquitofish catch per unit effort was significantly lower in Typha habitat than in the other three habitats during the reproductive...
Journal Article
Aquatic Ecosystem Health & Management (2009) 12 (1): 23–28.
Published: 09 March 2009
... using the Ontario Ministry of Natural Resources index netting methodology. A total of 2,760 lake whitefish were caught in 468 net sets, representing up to 17 year classes. The catch-per-unit-effort, as well as the number of year classes represented in the catch, was greater in Aundeck-Omni-Kaning than...
Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (4): 381–391.
Published: 28 November 2007
... for lift nets and mosquito seine nets. A total of 17,326 t of Caridina was harvested in the Tanzanian waters of Lake Victoria during the same period. More Caridina was harvested by mosquito seine nets (95%) than by lift nets (5%). Catch-per-unit-effort (CPUE; kg boat −1 day −1 ) for Caridina ranged...
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (2): 139–146.
Published: 01 June 2002
... full-time workers and the rest were part-time. The total fishing effort exerted in the open waters of Laguna de Bay was 10,653,220 hours with a catch per unit effort of 0.25 kg h −1 . The total fish production was 8,146 and 2,668 metric tons in 1995 and 1996, respectively. The catch mainly consisted of...
Journal Article
Aquatic Ecosystem Health & Management (2013) 16 (3): 322–328.
Published: 01 July 2013
...Figure 3. Catch per unit effort (CPUE) of R. argentea caught with the 5 mm and 10 mm mesh sizes during experimental surveys conducted between April and September 2001. ...
Journal Article
Aquatic Ecosystem Health & Management (2008) 11 (3): 257–271.
Published: 25 August 2008
... increased considerably in the last decade, whereas catch per unit effort appears to have decreased considerably indicating that over-fishing has become locally problematic. An overview is presented of main conservation problems, including exotic species that confront aquatic ecosystems in Peru. Finally, an...
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (3): 267–281.
Published: 01 September 2002
..., for example, global climate change, and which ones may be owing to the fishery or other human activities. Some correlation occurs between the seasonal development of catch per unit effort of Stolothrissa tanganicae and copepod biomass. Sound data collection, timely conclusions, and appropriate...
Journal Article
Aquatic Ecosystem Health & Management (2014) 17 (1): 25–33.
Published: 02 January 2014
... concurrent zooplankton abundance, precluding even such aggregation. Copyright © AEHMS 2014 catch per unit effort foodweb pelagic fish planktivorous fish Stolothrissa tanganicae Limnothrissa miodon tropical lake Lake Tanganyika is ca. 9–12 million years old (Coulter, 1991 ; Cohen...
Journal Article
Aquatic Ecosystem Health & Management (2021) 24 (1): 5–11.
Published: 02 January 2021
...Figure 4. (a) Catch per unit effort (CPUE) in the Limnothrissa fishery in relation to water temperature at 20 m in March and July; (b) CPUE and the annual discharge of the Zambezi River; (c) the number of fishing vessels in Zambia and Zimbabwe. The horizontal broken lines represent the numbers...
Journal Article
Aquatic Ecosystem Health & Management (2003) 6 (3): 299–310.
Published: 01 September 2003
... year 2000 (Table 1). Extension of fishing grounds was also evident, but all against a continued decrease in catch per unit effort and mean size of fish caught (Mkumbo and Cowx, 1999). The decline in the Nile perch landings have been mirrored by an expansion in the less profitable Rastrineobola fishery...
Journal Article
Aquatic Ecosystem Health & Management (2018) 21 (2): 121–131.
Published: 03 April 2018
... was used to standardise catch per unit of effort data from 1976 to 2009 and to determine the effects of fishing vessel characteristics such as engine size and hydro-acoustic devices on fish catch rates. The Precautionary Approach, through reference points like Bmax (reference point corresponding to...
Journal Article
Aquatic Ecosystem Health & Management (2014) 17 (2): 107–114.
Published: 03 April 2014
... Smallmouth Bass catch per effort values than fine-substrate rivers and southern rivers tended to have higher catch per effort values than northern rivers in Wisconsin. We used the expected Smallmouth Bass relative density estimates to assess the level of impairment of Smallmouth Bass populations in three...
Journal Article
Aquatic Ecosystem Health & Management (2014) 17 (1): 4–13.
Published: 02 January 2014
... fishermen and fishing units, and a decline in catch rates since 2002 (based on Burundi data which has been consistently collected). This article analyzes the trends of the Lake Tanganyika fishery, including: fishing effort, the changing uses of gear, and trends in employment in the fishery. Because of the...
Journal Article
Aquatic Ecosystem Health & Management (2002) 5 (3): 293–305.
Published: 01 September 2002
...- ommendations include increased supervision and train- ing, upgrading the computer system, designing new database, and implementation of improved data stor- age and backup protocols. Stock management advice has, until recently (see below), been based upon an analysis of time series of Catch Per Unit Effort...
Journal Article
Aquatic Ecosystem Health & Management (2016) 19 (4): 468–475.
Published: 01 October 2016
... 3.62 kg catches compared to 2.87 kg in the outer estuary. Shallow depths (4–8 m) may be one important reason for the higher catch per unit effort in the inner estuary. In total, 42 different taxa were identified from the shrimp-trawl catches in this study, including 20 taxa from the inner estuary and...
Includes: Supplementary data
Journal Article
Aquatic Ecosystem Health & Management (2015) 18 (1): 63–75.
Published: 02 January 2015
...James M. Watkins; Lars G. Rudstam; Michael J. Connerton; Ted Schaner; Per G. Rudstam; Kelly L. Bowen Mysids are an important component of Great Lakes foodwebs, both as a prey for fish and as a predator on zooplankton. We monitored mysid abundance in Lake Ontario using lake-wide hydroacoustics data...
Journal Article
Aquatic Ecosystem Health & Management (2007) 10 (4): 449–457.
Published: 28 November 2007
... the size at first capture. Co-management is considered to be the most effective option to implement monitoring, control and surveillance strategies. To establish catches per unit effort (CPUE), and estimate the annual total catch, a catch assessment survey was conducted on a monthly rotational basis...