Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Artículo científico |
| Sprache: | en |
| Veröffentlicht: |
Universidad de Costa Rica
2015
|
| Schlagworte: | |
| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=44939781013 https://www.redalyc.org/journal/449/44939781013/ https://www.redalyc.org/journal/449/44939781013/html/ https://www.redalyc.org/journal/449/44939781013/44939781013.epub https://www.redalyc.org/journal/449/44939781013/movil |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Inhaltsangabe:
- Assessment of the dolphinfish Coryphaena hippurus (Perciformes: Coryphaenidae) fishery in Pacific Panama Héctor M. Guzman Edgardo Díaz-Ferguson Angel J. Vega Yolany A. Robles Biología mahi mahi mahi Panama Panama The dolphinfish (Coryphaena hippurus) is a highly migratory pelagic species commercially exploitedby industrial, artisanal and recreational fisheries in tropical and subtropical areas of the world’s oceans. Herein,we evaluated the dolphinfish industrial fishery in Pacific Panama for the first time generating a growth modeland examining fluctuations in annual total catch and in catch per unit effort (CPUE) over a four-year period(2006-2009). Annual and monthly catch values and biological parameters of 14913 individuals were obtainedonboard industrial vessels, landing sites and records from processing plants. Size frequency for industrial ves-sels showed a normal distribution between 353 and 1715 mm (average, 1010.85 mm; n = 10459). Fish weightaveraged 4.94 kg (SD). Sex ratio was slightly biased toward females. More than 90% of the analyzed fish weresexually mature. The length-weight relationship was positive and significant, reflecting allometric growth.Growth parameters using the von Bertalanffy equation revealed a growth efficiency of θ = 4.61, which is withinthe reported range forCoryphaena hippurus(3.95-4.70). The largest fish were between age classes 2 and 3 (700-1400 mm). Total catch per year and catch per unit effort (CPUE) per year fluctuated, with the highest valuesrecorded between 2008 and 2009. Catch values reported herein are preliminary and appear to be below thoserecorded elsewhere in the region and cautiously may represent an indicator of sustainable use of this marineresource even considering the absence of management actions in Panama. Rev. Biol. Trop. 63 (3): 705-716.Epub 2015 September 01. 2015 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44939781013 https://www.redalyc.org/journal/449/44939781013/ https://www.redalyc.org/journal/449/44939781013/html/ https://www.redalyc.org/journal/449/44939781013/44939781013.epub https://www.redalyc.org/journal/449/44939781013/movil en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.3 Vol.63