Assessment of Four Major Fish Species Stocks in the Lithuanian and Russian Parts of Curonian Lagoon (SE Baltic Sea) Using CMSY Method
Fisheries in the Curonian Lagoon (1584 km<sup>2</sup> coastal lagoon in South-East Baltic) can be classified as artisanal, small-scale, multi-species, and multi-gear. Such types of fisheries are characterised as data-poor and require appropriate investigation methods. We used CMSY (versi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Fishes |
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| Online Access: | https://www.mdpi.com/2410-3888/7/1/9 |
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| author | Vaidotas Andrašūnas Edgaras Ivanauskas Arvydas Švagždys Artūras Razinkovas-Baziukas |
| author_facet | Vaidotas Andrašūnas Edgaras Ivanauskas Arvydas Švagždys Artūras Razinkovas-Baziukas |
| author_sort | Vaidotas Andrašūnas |
| collection | DOAJ |
| description | Fisheries in the Curonian Lagoon (1584 km<sup>2</sup> coastal lagoon in South-East Baltic) can be classified as artisanal, small-scale, multi-species, and multi-gear. Such types of fisheries are characterised as data-poor and require appropriate investigation methods. We used CMSY (version CMSY_2019_9f. R) to assess maximum sustainable yield (MSY) and related indicators for freshwater bream, roach, pike-perch, and European perch. A decline in pike-perch and roach was identified, while the stocks of freshwater bream and European perch were sustained. As the CMSY model does not consider the impact of environmental factors, the decline in roach stock may be attributed to the increase in salinity rather than to overfishing. In the case of freshwater bream and pike-perch, the method cannot consider the increase of the percentage of small-sized fishes in catches due to the allowance of low-selectivity gears in the fishery. Additionally, in the case of the pike-perch, the model does not take into account the interannual fluctuations in the stock-recruitment system. The assessment of the European perch stock can be considered to be good. However, the accuracy of CMSY is limited, and it should be used for fisheries management only in combination with other methods. |
| first_indexed | 2024-03-09T21:59:55Z |
| format | Article |
| id | doaj.art-c3dff41105544f728d5600168fa7daaa |
| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-03-09T21:59:55Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fishes |
| spelling | doaj.art-c3dff41105544f728d5600168fa7daaa2023-11-23T19:51:19ZengMDPI AGFishes2410-38882022-01-0171910.3390/fishes7010009Assessment of Four Major Fish Species Stocks in the Lithuanian and Russian Parts of Curonian Lagoon (SE Baltic Sea) Using CMSY MethodVaidotas Andrašūnas0Edgaras Ivanauskas1Arvydas Švagždys2Artūras Razinkovas-Baziukas3Marine Research Institute, Klaipeda University, LT-92294 Klaipeda, LithuaniaMarine Research Institute, Klaipeda University, LT-92294 Klaipeda, LithuaniaMarine Research Institute, Klaipeda University, LT-92294 Klaipeda, LithuaniaMarine Research Institute, Klaipeda University, LT-92294 Klaipeda, LithuaniaFisheries in the Curonian Lagoon (1584 km<sup>2</sup> coastal lagoon in South-East Baltic) can be classified as artisanal, small-scale, multi-species, and multi-gear. Such types of fisheries are characterised as data-poor and require appropriate investigation methods. We used CMSY (version CMSY_2019_9f. R) to assess maximum sustainable yield (MSY) and related indicators for freshwater bream, roach, pike-perch, and European perch. A decline in pike-perch and roach was identified, while the stocks of freshwater bream and European perch were sustained. As the CMSY model does not consider the impact of environmental factors, the decline in roach stock may be attributed to the increase in salinity rather than to overfishing. In the case of freshwater bream and pike-perch, the method cannot consider the increase of the percentage of small-sized fishes in catches due to the allowance of low-selectivity gears in the fishery. Additionally, in the case of the pike-perch, the model does not take into account the interannual fluctuations in the stock-recruitment system. The assessment of the European perch stock can be considered to be good. However, the accuracy of CMSY is limited, and it should be used for fisheries management only in combination with other methods.https://www.mdpi.com/2410-3888/7/1/9data-limited methodsoverfishingmaximum sustainable yield |
| spellingShingle | Vaidotas Andrašūnas Edgaras Ivanauskas Arvydas Švagždys Artūras Razinkovas-Baziukas Assessment of Four Major Fish Species Stocks in the Lithuanian and Russian Parts of Curonian Lagoon (SE Baltic Sea) Using CMSY Method Fishes data-limited methods overfishing maximum sustainable yield |
| title | Assessment of Four Major Fish Species Stocks in the Lithuanian and Russian Parts of Curonian Lagoon (SE Baltic Sea) Using CMSY Method |
| title_full | Assessment of Four Major Fish Species Stocks in the Lithuanian and Russian Parts of Curonian Lagoon (SE Baltic Sea) Using CMSY Method |
| title_fullStr | Assessment of Four Major Fish Species Stocks in the Lithuanian and Russian Parts of Curonian Lagoon (SE Baltic Sea) Using CMSY Method |
| title_full_unstemmed | Assessment of Four Major Fish Species Stocks in the Lithuanian and Russian Parts of Curonian Lagoon (SE Baltic Sea) Using CMSY Method |
| title_short | Assessment of Four Major Fish Species Stocks in the Lithuanian and Russian Parts of Curonian Lagoon (SE Baltic Sea) Using CMSY Method |
| title_sort | assessment of four major fish species stocks in the lithuanian and russian parts of curonian lagoon se baltic sea using cmsy method |
| topic | data-limited methods overfishing maximum sustainable yield |
| url | https://www.mdpi.com/2410-3888/7/1/9 |
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