Inventory of the Seaweeds and Seagrasses of the Hawaiian Islands

Sherwood, Alison R.; Guiry, Michael D.

doi:10.3390/biology12020215

Cited by 5 publications

(4 citation statements)

References 105 publications

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“…Some of the seaweeds were identified in situ based on morphological criteria. Phenotypic characteristics of the samples were determined and examined using available literature (Dumilag,[9], Dumilag and Javier, [9], Sherwood and Guiry, [15] to identify samples down to species level. The books of Calumpong [16] and Trono [2] were also used for identification and authentication.…”

Section: Identification and Authentication Of Samplesmentioning

confidence: 99%

Inventory of Seaweeds in Selected Municipalities in the Balicuatro Area of the Province of Northern Samar, Philippines

Abobo,

Enteria,

Ortecio

et al. 2024

AJFAR

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Seaweeds or marine macroalgae is one of the marine resources that are understudied in the province of Northern Samar, the province have twenty-four (24) municipalities and twenty (20) of them have coastal zone which is ideal for marine researches as well as for aquaculture. This study is focused on the present seaweeds in the three (3) selected municipalities in Balicuatro area in the province of Northern Samar. A total of ninety-four (94) taxa were collected/ found in the three (3) sampling sites. Lavezares got the greatest number of seaweeds with sixty (60) taxa, followed by Biri with fourty-four (44), and the least was in Allen with thirty-four (34) species. Chlorophyta have thirty-nine (39) species which constitute for 39.36% of the total identified seaweeds, followed by thirty-four (34) red seaweeds (36.17%), and, lastly, Brown macroalgae with only twenty-three (23) species which accounts for 24.47%. The most common marine macroalgae in all sampling sites were: Hormophysa cuneiformis which was found in ten (10) sampling sites, followed by Halimeda macroloba, Ulva reticulata, and Sargassum oligocystum which were found in ten (10) sampling sites. In terms of environmental parameters, temperature and salinity of all sampling sites were tested to be within the normal range during the collection period based on established threshold limit. However, in terms of pH, it was detected that two (2) barangays/ sampling sites in Lavezares, namely: Balicuatro and San Juan which only had 7.2 and 7.4 which is below the threshold limit range of seawater pH which is 7.5-8.5. In terms of substrate, rocky substrate is common to all sampling sites which indicates that hard substratum is preferable for the growth, adaptation, and survival of seaweeds.

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Section: Identification and Authentication Of Samplesmentioning

confidence: 99%

Inventory of Seaweeds in Selected Municipalities in the Balicuatro Area of the Province of Northern Samar, Philippines

Abobo,

Enteria,

Ortecio

et al. 2024

AJFAR

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“…Limu, the Hawaiian word for seaweed, was a crucial component not only in fishponds but also in the coastline ecosystems. An estimated 578 marine algae species are present in Hawaii as of 2,003, 80 of which are endemic to the area (Sherwood & Guiry, 2023). Limu has many uses in Hawaiian culture and is a fundamental component of many marine ecosystems.…”

Section: Asparagopsis Taxiformis (Limu Kohu) and The Reduction Of Met...mentioning

confidence: 99%

Consumer Information Drives Willingness to Pay for Low Emissions Milk and Beef

Taylor,

Johnson,

Diya-Courty-Stephens

2024

Journal of Developing Societies

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An emerging innovation in the sustainable food space is low methane emissions in beef and dairy products. A leader in this space is Symbrosia, 1 an innovative aquaculture company based in Hawai’i. They produce SeaGraze™, a feed additive derived from the red algae Asparagopsis taxformis, which is designed for ruminant 2 livestock producers to reduce the methane emissions of their livestock by more than 80%. However, the feed additive SeaGraze™ represents an additional cost for livestock producers, and the consumer demand for low methane emissions beef and dairy products is relatively unknown. This study explores consumer demand and the willingness to pay for low emissions beef and dairy products. It reports on a survey of 495 participants, which found product-informed consumers are willing to pay between 51.7% and 72.3% more for low emissions milk and between 0.6% and 8.6% more for low emissions beef. A regression analysis found the most notable driver of consumer preference and willingness to pay more for these products was product information. This suggests that effective advertising of low methane emissions products is necessary for their financial success. These results should encourage producers in other countries to expand the production and consumption of these kinds of products to curb methane emissions.

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“…These subtropical reefs are often dominated by macroalgae, in contrast to the mostly coral‐dominated tropical reefs (Bruno et al, 2014; Vroom & Braun, 2010). The Hawaiian Archipelago, including PMNM, supports approximately 658 macroalgal species of Rhodophyta, Chlorophyta, and Phaeophyceae (Huisman et al, 2007; Sherwood & Guiry, 2023).…”

Section: Figurementioning

confidence: 99%

Rapid expansion of the invasive‐like red macroalga, Chondria tumulosa (Rhodophyta), on the coral reefs of the Papahānaumokuākea Marine National Monument

Lopes,

Miura,

Hauk

et al. 2023

Journal of Phycology

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A cryptogenic, invasive‐like red macroalga, Chondria tumulosa, was first observed in 2016 forming thick mats on the forereef of Manawai Atoll within Papahānaumokuākea Marine National Monument. Subsequent expeditions revealed an increased abundance of this alga. In 2021, unattached C. tumulosa was observed forming a network of dark, meandering accumulations throughout the atoll's inner lagoon. High‐resolution satellite imagery revealed that these accumulations became visible in 2015 (length: ~0.74 km; area: ~0.88 km2) and increased 56‐fold in length and 115‐fold in area by 2021 (length: 41.32 km; area: 101.34 km2). An exponential expansion rate of ~16.02 km · y−1 (length), ~44.75 km2 · y−1 (area). This study presents the comprehensive temporal and spatial expansion of C. tumulosa accumulations for Manawai Atoll since its discovery, providing ecologist and resource managers with a proxy to gauge the overall abundance trend of this invasive‐like alga.

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Inventory of the Seaweeds and Seagrasses of the Hawaiian Islands

Cited by 5 publications

References 105 publications

Inventory of Seaweeds in Selected Municipalities in the Balicuatro Area of the Province of Northern Samar, Philippines

Inventory of Seaweeds in Selected Municipalities in the Balicuatro Area of the Province of Northern Samar, Philippines

Consumer Information Drives Willingness to Pay for Low Emissions Milk and Beef

Rapid expansion of the invasive‐like red macroalga, Chondria tumulosa (Rhodophyta), on the coral reefs of the Papahānaumokuākea Marine National Monument

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