Life History Traits Of The Invasive Seaweed Sargassum Horneri At Santa Catalina Island, California

Marks, Lindsay; Reed, Daniel; Holbrook, Sally

doi:10.3391/ai.2018.13.3.03

i

Life History Traits Of The Invasive Seaweed Sargassum Horneri At Santa Catalina Island, California

2018
By Marks, Lindsay ; Reed, Daniel ; Holbrook, Sally
Source Aquatic Invasions, 13(3): 339-350

Details

Journal Title:

Aquatic Invasions
Personal Author:

Marks, Lindsay ; Reed, Daniel ; Holbrook, Sally
NOAA Program & Office:

Sea Grant ; OAR (Oceanic and Atmospheric Research) ; NOS (National Ocean Service)
Sea Grant Program:

CASG/CUIMR (California Sea Grant)
Description:

The recent spread of the Asian seaweed, Sargassum horneri (Turner) C. Agardh, along the Pacific coast of North America, presents an opportunity to expand our understanding of traits of invasive macroalgae. Here we used surveys to characterize the life history of S. horneri and to quantify traits that promote its spread and persistence, including seasonality in abundance and reproduction, broad habitat affinity, and high reproductive capacity. We found that S. horneri occupies a wide range of suitable depths and substrates, allocates substantial biomass to reproduction, and has seasonal patterns of biomass offset from that of most native macroalgae. A field experiment revealed S. horneri has a high capacity for local dispersal and recruitment that appears sufficient for maintaining populations through multiple generations. Our findings can be paired with knowledge of the life histories of co-occurring species to characterize their potential to interact with S. horneri, which should prove useful for developing best practices for managing its spread.
Source:

Aquatic Invasions, 13(3): 339-350
DOI:

https://doi.org/10.3391/ai.2018.13.3.03
Document Type:

Journal Article
Funding:

Grant no. NA14OAR4170075 ; Grant no. NA13NOS4290006
Rights Information:

CC BY
Compliance:

Library
Download URL:

https://repository.library.noaa.gov/view/noaa/33038/noaa_33038_DS1.pdf
File Type:

[PDF - 2.70 MB]
Collection(s):

Office of Oceanic and Atmospheric Research (OAR) ; Sea Grant Publications ; National Ocean Service (NOS)
Main Document Checksum:

urn:sha256:12ada15cb424e92d4a0f3d1de62e676dbd19c13b17443d6a6a9618dddb8c2dff

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