Asset Details
Do you wish to reserve the book?
Planktonic larval duration, early growth, and the influence of dietary input on the otolith microstructure of Scolopsis bilineatus (Nemipteridae)
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?
Planktonic larval duration, early growth, and the influence of dietary input on the otolith microstructure of Scolopsis bilineatus (Nemipteridae)
Do you wish to request the book?
Planktonic larval duration, early growth, and the influence of dietary input on the otolith microstructure of Scolopsis bilineatus (Nemipteridae)
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
Planktonic larval duration, early growth, and the influence of dietary input on the otolith microstructure of Scolopsis bilineatus (Nemipteridae)
2019
Overview
The pelagic larval phase represents a critical period in the early life history of fishes, since larval growth and development can contribute substantially to patterns of survival, dispersal and connectivity. The microstructure of otoliths was examined to investigate events during the early life history of the bridled monocle bream Scolopsis bilineatus (Nemipteridae) on the Great Barrier Reef. We validated a distinct settlement mark, characterized by a rapid transition from wide to narrow increments. The time fish spent in the plankton (Pelagic Larval Duration; PLD) ranged from 17 to 27 days (mean = 21.3 days), which is similar to many other fish families. Three distinct early life history stages occurred: pre-settlers (larvae), newly settled fish, and settled juveniles. Increment width (a proxy for growth) was sequentially narrower with each life history stage; pre-settlers>newly settled>settled juveniles, and growth was reduced as fish approached and underwent settlement to reef habitats. Evidence is provided for a “search phase”, whereby growth was reduced in the three to four days preceding settlement; this pattern may be indicative of changes in the behaviour of larvae immediately prior to settling. Two manipulative experiments investigated the effects of diet ration on otolith increment widths. Reduced food intake resulted in significantly narrower increment widths, with a possible lag effect of at least six days. Experiment results indicated that increment widths can be a reliable proxy of somatic growth, and results from this study overall highlight the utility of otoliths as a tool for investigating the early life history of fishes.
