Length‐weight relationships of six native and one introduced species in small perennial watercourses of the Chocó region of Ecuador

Length‐weight relationships of six native and one introduced species in small perennial watercourses of the Chocó region of Ecuador

Summary This study estimated the length‐weight relationship (LWR) of seven species (six native species and one introduced species) in two small perennial watercourses of the Chocó region of Ecuador. Specimens were collected bimonthly with two different fishing methods between August 2016 and July 20...

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Bibliographic Details
Published in:Journal of applied ichthyology Vol. 35; no. 2; pp. 587 - 589
Main Authors: Jiménez‐Prado, Pedro J., Molinero, Jon, Vásquez, Fernando
Format: Journal Article
Language:English
Published: Berlin Wiley Subscription Services, Inc 01-04-2019
Subjects:
Biology
Endemic species
Environmental management
Fish
Fisheries
Fishing
Fishing methods
Indigenous species
Inland fisheries
Introduced species
Length-weight relationships
Native organisms
Seine nets
Watercourses
Weight
Ecuador
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Summary:Summary This study estimated the length‐weight relationship (LWR) of seven species (six native species and one introduced species) in two small perennial watercourses of the Chocó region of Ecuador. Specimens were collected bimonthly with two different fishing methods between August 2016 and July 2017 (Seine net: 46 × 21.20 m, 3 mm mesh size and casting net: 2.10 m radius, 10 mm mesh size). This is the first report of the LWR and a new report on maximum length for two endemic species (Eretmobrycon ecuadorensis and Andinoacara blombergi). The intercept (a) of the LWR ranged from 0.0124 to 0.0316 and the slope (b) ranged from 3.03 and 3.16. The LWRs are useful and, in connection with the collection of other key data on fish biology and the environment they can contribute to management and conservation of the local inland fisheries.
Bibliography:Funding information
Pontificia Universidad Católica del Ecuador Sede Esmeraldas.
ISSN:0175-8659
1439-0426
DOI:10.1111/jai.13825