Cited by 33Aquaculture Nutrition and GrowthMarine and coastal plant biologySeaweed-derived Bioactive Compounds

Nitrogen allocation of Gracilaria tikvahiae grown in urbanized estuaries of Long Island Sound and New York City, USA: a preliminary evaluation of ocean farmed Gracilaria for alternative fish feeds

Open access
Johnson, Ronald B., Kim, Jang K., Armbruster, Lisa C., Yarish, Charles·2014·ALGAE

Abstract

The red seaweed, Gracilaria tikvahiae McLachlan, was cultivated in open water farms in urbanized estuaries of Long Island Sound (26-30 psu of salinity) and New York City (20-25 psu), USA in 2011.Plants were harvested monthly from summer (August, 24°C) to fall (November, 13°C) and analyzed for total nitrogen, protein, and amino acid content.On a dry matter (DM) basis, nitrogen and protein significantly increased over the harvest period until October and then plateaued.Nitrogen increased from 22 ± 1 g kg -1 DM in August to 39 ± 3 g kg -1 DM in October (p < 0.001).Protein increased from 107 ± 13 g kg -1 DM in August to 196 ± 5 g kg -1 DM in November (p < 0.001).With two exceptions, amino acid concentrations expressed on a crude protein (CP) basis were similar over the harvest period.Essential amino acids accounted for 48 ± 1% of all amino acids present with lysine and methionine averaging 56 ± 2 g kg -1 CP and 18 ± 1 g kg -1 CP, respectively.Histidine was underrepresented among essential amino acids and averaged 13 ± 1 g kg -1 CP.Taurine ranged from 2.1 to 3.2 g kg -1 DM.With its moderate levels of lysine, methionine and taurine, ocean farmed G. tikvahiae has the potential of overcoming many nutrient deficiencies currently associated with terrestrial plant ingredients in alternative feeds for fish and shrimp.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.4490/algae.2014.29.3.227

Cites

63 of 63 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • During periods of nutrient limitation such as during the summer stratification of coastal waters, macroalgal protein content decreases, and the relative proportions of amino acids change.

    “During periods of nutrient limitation such as during the summer stratification of coastal waters, however, macroalgal protein content decreases, and the relative proportions of amino acids change (Online Resource 2; Galland-Irmouli et al. 1999; Johnson et al. 2014; Schiener et al. 2015).”

    From Algae as nutritional and functional food sources: revisiting our understanding. (2017) · cites this paper as Johnson et al. 2014

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 5

  1. Mustafa, M. G. & Nakagawa, H. 1995. A review: dietary ben- efits of algae as an additive in fish feed. Isr. J. Aquac.- Bamidgeh 47:155-162.
  2. National Research Council. 2001. Nutrient requirements of dairy cattle. 7th ed. National Academies Press, Washing- ton, DC, 381 pp.
  3. National Research Council. 2011. Nutrient requirements of fish and shrimp. National Academies Press, Washington, DC, 376 pp.
  4. Pedersen, A., Kraemer, G., Hariskov, S. & Yarish, C. 2012. Por- phyra spp. from Long Island sound: free amino acids, Tot. C, Tot. N and phycobiliproteins content and the re- sponse to short term uptake of nitrate. In Sahoo, D. & Kaushik, D. B. (Eds.) Algal Biotechnology and Environ- ment. I.K. International Publishing House, New Delhi, pp. 129-144.
  5. Yarish, C., Kilar, J. A. & Merrill, J. E. 1991. The management of eutrophication through aquaculture and natural beds of marine algae. In Hinga, K. R., Stanley, D. W., Klein, C. J., Lucid, D. T. & Katz, M. J. (Eds.) The National Estuarine Eutrophication Project: Workshop Proceedings. National Oceanic and Atmospheric Administration and the Uni- versity of Rhode Island Graduate School of Oceanogra- phy, Rockville, MD, pp. 40-41.

Cited by

Sorted by citations

Authors
Johnson, R. B., Kim, J. K., Armbruster, L. C., & Yarish, C.
Affiliations
  • NOAA National Marine Fisheries Service Northwest Fisheries Science Center (US)
  • University of Connecticut (US)
Corresponding author
Johnson, Ronald B.
Venue
ALGAE
Published
2014-09-15
Volume
29
Issue
3
Pages
227-235
ISSN
1226-2617 (ISSN-L)
OpenAlex
W2055231045
Cited by
33
References
63
Citations by year
2026: 1 · 2025: 3 · 2023: 3 · 2022: 6 · 2021: 1 · 2020: 5 · 2019: 2 · 2018: 2 · 2017: 3 · 2016: 3 · 2015: 3 · 2014: 1
FWCI
5.07
Type
journal article
Language
en
Open access
Locations
ALGAE (publishedVersion)
Funders
  • National Fish and Wildlife Foundation (1401.10.024266)
  • National Oceanic and Atmospheric Administration
  • Connecticut Sea Grant, University of Connecticut
  • National Marine Fisheries Service
  • Northeast Fisheries Science Center
Topics
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal plant biology
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Seaweed-derived Bioactive Compounds
Keywords
Gracilaria tikvahiae, nitrogen partitioning, seaweed cultivation, ocean farming, alternative fish feed, protein content, amino acid composition, essential amino acids, lysine, methionine, taurine, urban estuaries, Long Island Sound, New York City, seasonal variation, red seaweed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review