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Improved Estimates Of Net Primary Production, Growth, And Standing Crop Of Macrocystis Pyrifera In Southern California

Title: Improved Estimates Of Net Primary Production, Growth, And Standing Crop Of Macrocystis Pyrifera In Southern California.
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Name(s): Rassweiler, Andrew, author
Reed, Daniel C., author
Harrer, Shannon L., author
Nelson, J. Clint, author
Type of Resource: text
Genre: Journal Article
Text
Journal Article
Date Issued: 2018-09-01
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The giant kelp Macrocystis pyrifera forms subtidal forests on shallow reefs in temperate regions of the world. It is one of the fastest-growing multicellular autotrophs on Earth and its high productivity supports diverse marine food webs. In 2008, we published a method for estimating biomass and net primary production (NPP) of giant kelp along with five years of data, to provide a more integrated measure of NPP than those yielded by previous methods. Our method combines monthly field measurements of standing crop and loss rates with a model of kelp biomass dynamics to estimate instantaneous mass-specific growth rates and NPP for each season of each year. We have since improved our approach to account for several previously unresolved sources of biomass loss. These improvements have led to a near doubling of our prior estimates of growth and NPP. At our site with the most persistent stand of giant kelp, NPP averages similar to 5.2 kg dry mass.m(-2).yr(-1) and results from the rapid growth (similar to 3.5% per d) of a relatively small standing biomass (similar to 0.4 kg dry mass/m(2) on average) that turns over similar to 12 times annually. Here we provide revised estimates of seasonal biomass, growth, and NPP for the five years covered by our previous publication (2002-2006), along with more than a decade of additional data (2007-2017). We also present updated relationships for predicting giant kelp biomass and NPP from much more easily obtained measurements of frond density. These data can be used to understand the mechanisms that drive variation in giant kelp NPP at a wide range of temporal scales. No copyright or proprietary restrictions are associated with the use of this data set other than citation of this Data Paper.
Identifier: FSU_libsubv1_wos_000443558200024 (IID), 10.1002/ecy.2440 (DOI)
Keywords: giant kelp, growth rate, Macrocystis pyrifera, marine algae, net primary production, standing crop
Publication Note: The publisher’s version of record is available at https://doi.org/10.1002/ecy.2440
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000443558200024
Owner Institution: FSU
Is Part Of: Ecology.
0012-9658
Issue: iss. 9, vol. 99

Choose the citation style.
Rassweiler, A., Reed, D. C., Harrer, S. L., & Nelson, J. C. (2018). Improved Estimates Of Net Primary Production, Growth, And Standing Crop Of Macrocystis Pyrifera In Southern California. Ecology. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000443558200024