Matches in SemOpenAlex for { <https://semopenalex.org/work/W1138866084> ?p ?o ?g. }
Showing items 1 to 64 of
64
with 100 items per page.
- W1138866084 abstract "The Galapagos Sailfin grouper, Mycteroperca olfax , locally known as bacalao and listed as vulnerable by IUCN, is culturally, economically, and ecologically important to the Galapagos archipelago and its people. It is regionally endemic to the Eastern Tropical Pacific, and, while an important fishery resource that has shown substantial declines in recent years, to date no effective management regulations are in place to ensure the sustainability of its Galapagos fishery. Previous estimates of longevity and size of maturity for bacalao are inconsistent with estimates for congeners, which questions the accuracy of prior estimates. We set out to rigorously assess the age, growth, and reproductive biology of bacalao in order to provide more accurate life history information to inform more effective fisheries management for this species. The oldest fish in our sample was 24 years old, which is 2-3 times greater than previously reported estimates of longevity. Parameter estimates for the von Bertalanffy growth function (k= 0.07, L ∞ = 119.1 cm TL, and t o = -2.33 years) show bacalao to grow much slower and obtain substantially larger asymptotic maximum length than previous studies. Mean size at maturity (as female) was estimated at 61.1 cm TL, corresponding to an age of 7.8 years. As a protogynous hermaphrodite, size at sex change (from adult female to adult male) occurred at 83.7 cm TL, corresponding to 15.2 years of age. We found that sex ratios were extremely female biased (0.015 M:1F), with a large majority of the individuals in our experimental catch being immature (73%). Our results show that bacalao grow slower, live longer, and mature at a much larger size and greater age than previously thought, with very few mature males in the population. These findings have key implications for the fishery of this valuable species and urge for a long-due species management plan to ensure its long-term sustainability." @default.
- W1138866084 created "2016-06-24" @default.
- W1138866084 creator A5004329100 @default.
- W1138866084 creator A5044838377 @default.
- W1138866084 creator A5048324784 @default.
- W1138866084 creator A5071204841 @default.
- W1138866084 creator A5091342433 @default.
- W1138866084 date "2015-06-12" @default.
- W1138866084 modified "2023-10-18" @default.
- W1138866084 title "Age, growth and reproduction of the Galapagos sailfin grouper Mycteroperca olfax (Jenyns, 1840): an overdue and needed comprehensive baseline" @default.
- W1138866084 cites W103317547 @default.
- W1138866084 cites W1587026990 @default.
- W1138866084 cites W1829276247 @default.
- W1138866084 cites W1994324019 @default.
- W1138866084 cites W2092022077 @default.
- W1138866084 cites W2128599926 @default.
- W1138866084 cites W2146746507 @default.
- W1138866084 cites W2325329009 @default.
- W1138866084 cites W2588677549 @default.
- W1138866084 cites W2213095978 @default.
- W1138866084 doi "https://doi.org/10.7287/peerj.preprints.1173v1" @default.
- W1138866084 hasPublicationYear "2015" @default.
- W1138866084 type Work @default.
- W1138866084 sameAs 1138866084 @default.
- W1138866084 citedByCount "0" @default.
- W1138866084 crossrefType "posted-content" @default.
- W1138866084 hasAuthorship W1138866084A5004329100 @default.
- W1138866084 hasAuthorship W1138866084A5044838377 @default.
- W1138866084 hasAuthorship W1138866084A5048324784 @default.
- W1138866084 hasAuthorship W1138866084A5071204841 @default.
- W1138866084 hasAuthorship W1138866084A5091342433 @default.
- W1138866084 hasBestOaLocation W11388660841 @default.
- W1138866084 hasConcept C18903297 @default.
- W1138866084 hasConcept C2778967481 @default.
- W1138866084 hasConcept C2909208804 @default.
- W1138866084 hasConcept C505870484 @default.
- W1138866084 hasConcept C59659247 @default.
- W1138866084 hasConcept C86803240 @default.
- W1138866084 hasConceptScore W1138866084C18903297 @default.
- W1138866084 hasConceptScore W1138866084C2778967481 @default.
- W1138866084 hasConceptScore W1138866084C2909208804 @default.
- W1138866084 hasConceptScore W1138866084C505870484 @default.
- W1138866084 hasConceptScore W1138866084C59659247 @default.
- W1138866084 hasConceptScore W1138866084C86803240 @default.
- W1138866084 hasLocation W11388660841 @default.
- W1138866084 hasOpenAccess W1138866084 @default.
- W1138866084 hasPrimaryLocation W11388660841 @default.
- W1138866084 hasRelatedWork W1569127818 @default.
- W1138866084 hasRelatedWork W1897413567 @default.
- W1138866084 hasRelatedWork W2038788473 @default.
- W1138866084 hasRelatedWork W2124298127 @default.
- W1138866084 hasRelatedWork W2130145297 @default.
- W1138866084 hasRelatedWork W2137192892 @default.
- W1138866084 hasRelatedWork W2171540501 @default.
- W1138866084 hasRelatedWork W2315521738 @default.
- W1138866084 hasRelatedWork W2612337845 @default.
- W1138866084 hasRelatedWork W2755017267 @default.
- W1138866084 hasRelatedWork W2890186146 @default.
- W1138866084 hasRelatedWork W2943781358 @default.
- W1138866084 hasRelatedWork W2413027849 @default.
- W1138866084 isParatext "false" @default.
- W1138866084 isRetracted "false" @default.
- W1138866084 magId "1138866084" @default.
- W1138866084 workType "article" @default.