Asset Details
Do you wish to reserve the book?
Life history of the silvertip shark Carcharhinus albimarginatus from Papua New Guinea
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Life history of the silvertip shark Carcharhinus albimarginatus from Papua New Guinea
Do you wish to request the book?
Life history of the silvertip shark Carcharhinus albimarginatus from Papua New Guinea
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Life history of the silvertip shark Carcharhinus albimarginatus from Papua New Guinea
2017
Overview
Growth and maturity of the silvertip shark
Carcharhinus albimarginatus
from Papua New Guinea were estimated to form the basis of future population assessments. Samples were collected from commercial longline vessels targeting sharks in the Bismarck and Solomon Seas. A total of 48
C. albimarginatus
—28 males (95–219 cm total length, TL) and 20 females (116–250 cm TL)—provided data for the analyses. Employing back-calculation techniques accounted for missing juvenile length classes and supplemented the sample size. A multi-model framework incorporating the Akaike information criterion was used to estimate growth parameters. The von Bertalanffy growth function (VBGF) provided the best-fit growth estimates. Parameter estimates were
L
0
= 72.1 cm TL,
k
= 0.04 yr
−1
and
L
∞
= 311.3 cm TL for males; and
L
0
= 70.8 cm TL,
k
= 0.02 yr
−1
and
L
∞
= 497.9 cm TL for females. The biologically implausible
L
∞
occurred for females as their growth did not asymptote; a typical trait of large shark species. The maximum age estimated from vertebral analysis was 18 yr for both sexes, while the calculated longevity from the VBGF parameters was 27.4 yr for males and 32.2 yr for females. Males matured at 174.7 cm TL and 10.5 yr old, while females matured at 208.9 cm TL and 14.8 yr old.
