Vulnerability assessment of Lake Malawi’s ornamental fish resources to export ornamental trade
| Autor: | Amulike V. Msukwa, Ian G. Cowx, J. P. Harvey |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
biology 010604 marine biology & hydrobiology Vulnerability 04 agricultural and veterinary sciences Aquatic Science biology.organism_classification 01 natural sciences Fishery Geography Vulnerability assessment 040102 fisheries Melanochromis chipokae 0401 agriculture forestry and fisheries IUCN Red List Placidochromis Conservation status Aulonocara baenschi Copadichromis |
| Zdroj: | Fisheries Research. 238:105869 |
| ISSN: | 0165-7836 |
| DOI: | 10.1016/j.fishres.2020.105869 |
| Popis: | Productivity Sustainability Analysis (PSA) was used to assess the vulnerability of 103 most targeted ornamental fish species of Lake Malawi to fishing for the export trade. The PSA was based on five productivity and four susceptibility attributes that are relevant to the ornamental fishes of Lake Malawi, and for which information was readily available from the scientific literature. The vulnerability scores ranged from 1.78 to 3.84 with a mean value of 2.49. Seven species (Aulonocara sp ‘walteri’, Lethrinops sp ‘red cap’, Aulonocara baenschi, Copadichromis azureus, Melanochromis chipokae, Placidochromis phenochilus and Protomelas sp ‘mbenji thick lips’) were classified in the high-vulnerability category with vulnerability scores ranging from 3.18 to 3.84. Twenty-five species were within the medium vulnerability category with scores between 2.64 and 2.96 while 71 species ranked as of low vulnerability scores ranging between 1.78 and 2.63. The vulnerability scores were positively correlated with IUCN conservation status (τb = 0.286, p = 0.001). Susceptibility scores had a stronger correlation with the IUCN risk assessment criteria (τb = 0.390, p |
| Databáze: | OpenAIRE |
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