Biological aspects of fish species from subsistence fisheries in 'Bons Sinais' estuary, Mozambique
| Autor: | Jeremias Mocuba, Daniel Oliveira, Francisco Leitão, Eudriano F. S. Costa, Maria Alexandra Teodósio |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences Fishing Fish species Environmental Sciences & Ecology Aquatic Science Data-poor fisheries Fisheries law 01 natural sciences Weight-length relationships Stolephorus Weight–length relationships Fish biology Indian Ocean Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences geography geography.geographical_feature_category Ecology biology 010604 marine biology & hydrobiology Subsistence agriculture Sustainable fishery Estuary Length distribution Estuarine fisheries biology.organism_classification Fishery Animal Science and Zoology Allometry |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| Popis: | Knowledge on biological aspects of commercially exploited fish is an important tool for assessing and managing of data-poor fisheries. In this study, we have collected information on biological aspects of commercial fish species, namely in the Bons Sinais estuary (BSE), Mozambique. Fish species were caught using a beach seine and a traditional fishing gear known as Chicocota, both used by local fishing communities for subsistence fisheries. The results revealed that most specimens caught were juveniles and below the size at first maturity. In general, mean body height (BH) estimated across all species (2.24 cm) was below the minimum mesh size established by Mozambique Fisheries Law (3.8 cm). Estimated W-L regression analysis were statistically significant with the coefficient of determination (r(2)) explaining from 91 to 98% of the variance. The allometric coefficient b ranged from 2.728 (Stolephorus indicus) to 3.357 (Johnius dussumieri). All the species exhibited positive or isometric allometric growth, except S. indicus, which exhibited negative growth. This study provides new information that can be used to enhance sustainable fishery management in data-poor fisheries. (C) 2020 Elsevier B.V. All rights reserved. FCT-Foundation for Science and TechnologyPortuguese Foundation for Science and Technology [UID/Multi/04326/2019] Project BIOFISH-QoL: Integrative approach for enhancing quality of life in fishing communities of the 'Bons Sinais' estuary (Mozambique) [330785505] FCT, PortugalPortuguese Foundation for Science and Technology [DL57/2016/CP1361/CT0008] Western Indian Ocean Marine Science Association (WIOMSA) within the Marine Research Grant (MARG) program Mozambican Ministry of Science and Technology, Higher Education and Technical-Professional Aga Khan Development Network (AKDN) info:eu-repo/semantics/publishedVersion |
| Databáze: | OpenAIRE |
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