Length-weight relationships of eleven fish species captured in 18 streams of the Capim River basin,Brazil |
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| Authors: | Ana Flávia do Vale Neves Machado Cleonice Maria Cardoso Lobato Rafael Rodrigues Gusmão Luciano Fogaça de Assis Montag Bruno Silveira Prudente |
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| Institution: | 1. Bacharelado em Engenharia de Pesca, UFRA, Belem, Brazil;2. Laboratório de Ecologia e Conservação – LABECO, Instituto de Ciências Biológicas, UFPA, Belem, Brazil;3. Bacharelado em Engenharia de Pesca, UFRA, Belem, Brazil
Laboratório de Ecologia e Conservação – LABECO, Instituto de Ciências Biológicas, UFPA, Belem, Brazil;4. Laboratory of Amazon Ecology and Conservation (LABECA), Universidade Federal Rural da Amazônia, Capitão Poço, Brazil |
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| Abstract: | The length-weight relationship is important for the study of populational dynamics. This study aimed to describe the length-weight relationships (LWR) of 11 fish species sampled on 18 streams of the Capim river basin on eastern Amazon. Specimens were captured in 2014, 2015 and 2017, using sieve nets with 2 mm of mesh size. Fixed specimens were fixed in 10% formalin and conserved in alcohol 70%, measured for standard length (SL, 0.1 cm) and total weight (W, 0.01 g). The 11 species analysed were: Hemigrammus bellottii, Hemigrammus ocellifer, Hyphessobrycon heterorhabdus, Iguanodectes rachovii, Copella arnoldi, Nannostomus trifasciatus, Apistogramma regani, Apistogramma agassizii, Gymnorhamphichthys rondoni, Hypopygus lepturus, Anablepsoides urophthalmus. |
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