Tracing the influence on sediments of organic waste from a salmonid farm using stable isotope analysis

Ye, Li-Xun; Ritz, David; Fenton, Gwen Elizabeth; Lewis, Margaret E.

doi:10.1016/0022-0981(91)90173-t

Cited by 104 publications

(55 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For the Chlorophyta (Table 1) the most negative values are for species of Caulerpa, a genus for which Ye et al (1991) had already reported a F13C of -32.26 + 3.80 (SD)%" for the Australasian C. trifaria. The only other marine chlorophyte with a 613C more negative than -30%0 in the organic C is Udotea petiolata from the Gulf of Calvl In Corsica (Dauby 1989).…”

Section: Discussionmentioning

confidence: 98%

“…The relatively low photon flux density to which shown to have a 6I3C more negative than Fenton these organisms are naturally exposed imposes a & Ritz 1988) can be added to the 8 species in Table 3 of restriction on the rate of photosynthesis on a thallus Maberly et al (1992). Other reports of 6I3C values more area basis which can be predicted from thallus absorpnegative than -30Ym for wild-collected red marine tance and the photon yield of photosynthesis (Liining macroalgae are those of Black & Bender (1976) identified organism, Dauby (1989) for Cerarnium Thus, a photon flux density of 42 pm01 photon m-' S-' rubrum and Ye et al (1991) for Erythroclonium sp. In addition, there are the 5 speties in Table 6, making a total of 22.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Implications of 13C natural abundance measurements for photosynthetic performance by marine macrophytes in their natural environment

Raven¹,

Walker²,

Johnston³

et al. 1995

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Marine macroalgae and seagrasses collected from Penguin Island, Western Australia, and red marine macroalgae from Australasia and Europe were analysed for the natural abundance of stable isotopes in their organic matter. These measurements revealed 1 specles of green macroalgae and 9 species of red macroalgae with a 6I3C below -30%. These new observations bring the total of reports of wild-collected manne macrophytes with 613C values below -30% to 3 species of ulvophycean chlorophytes and 22 species of florideophycean rhodophytes The 22 rhodophyte species are in 18 genera in 10 famllies of 4 orders. Marine algae with very negative S13C values have been shown in other work to be unable to use HC03-and rely on CO2 diffusion Into the thallus for photosynthesis. The quantitative implications of the low I3C/l2C ratio and the inability to use HCOf were analysed to predict the maximum in situ rate of photosynthesis. The relatively low predicted rates agree with measured rates (by other workers) of C assimilation in photosynthesis and growth. These low potential rates of C acquisition can be related to the low mean photon flux density required for growth in 17 of the 22 species of red algae and all 3 species of green algae. Low mean photon flux densities are characteristic of habitats in the subtidal (18 species of red algae, 3 species of green algae) and shaded microhabitats in the intertidal (1 species of red algae). Even the 5 other algae, littoral and infralittoral, seem from the literature to have low photosynthetic and relative growth rates, although it is not clear whether the low metabolic rates result from dependence on CO;, diffusion or whether diffusive CO2 entry as the sole means of inorganic C supply is permitted by a low metabolic rate imposed by some other cause.

show abstract

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Implications of 13C natural abundance measurements for photosynthetic performance by marine macrophytes in their natural environment

Raven¹,

Walker²,

Johnston³

et al. 1995

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…Detrimental environmental effects associated with aquaculture wastes include localized hypernutrification and/ or lowered dissolved oxygen levels in the water column (Bergheim et al, 1982;Penczak et al, 1982;Bergheim et al, 1984;Wisemann et al, 1988;Wildish et al, 1992;Hargrave et al, 1993;Cornell and Whoriskey, 1993;Briggs and Funge-Smith, 1994;Wu et al , 1994) toxic algal blooms (Kaartvedt et al, 1991), reduced and/or anoxic benthic sediments (Holmer and Kristenen, 1992;Hargrave et al, 1993;Wu et al, 1994), changes in benthic fauna (Brown et al, 1987;Weston, 1990;Tsutsumi et al, 1991, Ye et al, 1991Hargrave et al, 1993), and accumulation of pathogenic and where antibiotics are added to feed, antibioticresistant bacteria (Husevig et al, 1991;Samuelson et al, 1992;Kerry et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

“…In general, negative environmental effects of the discharge of aquaculture waste are more pronounced in enclosed or semienclosed areas with poor or limited water circulation. Other negative environmental effects associated with aquaculture wastes include toxic algal blooms (Kaartvedt et al, 1991), reduced and or anoxic benthic sediments (Holmer and Kristenen, 1992;Hargrave et al, 1993;Wu et al, 1994), decreased benthic faunal biodiversity (Brown et al, 1987;Weston, 1990;Tsutsumi et al, 1991, Ye et al, 1991Hargrave et al, 1993), and accumulation of pathogenic and antibiotic-resistant bacteria (where antibiotics are added to feed) (Husev&g et al, 1991;Samuelson et al, 1992;Kerry et al, 1994).The discharge of nutrients from a 1 ha intensive shrimp pond is estimated to be about 1570 kg nitrogen and 430 kg phosphorus per year (Roberston and Phillips 1996) . Briggs…”

mentioning

confidence: 99%

Halophytes for the treatment of saline aquaculture effluent

et al. 1999

View full text Add to dashboard Cite

This manuscript has been reproduced from the microfilm master. UMI fihns the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer.The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction.In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion.Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and continuing from left to right in equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book.Photographs included in the original manuscript have been reproduced xerographically in this copy. Kgher quality 6" x 9" black and white photographic prints are avaUable for any photographs or illustrations appearing in this copy for an additional charge. Contact UMI directly to order. Final approval and acceptance of this dissertation is contingent upon the candidate's submission of the final copy of the dissertation to the Graduate College. UMII hereby certify that I have read this dissertation prepared under my direction and recommend that it be accepted as fulfilling the dissertation requirement. Dissertation Director Date 3 STATEMENT BY AUTHORThis dissertation has been submitted in partial fulfillment of requirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under the rules of the Library.Brief quotations from this dissertation are allowable without special permission, provided that accurate acknowledgement of source is made. Requests for permission for extended quotation from or reproduction of this manuscript in whole or in part may be granted by the copyright holder. (New, 1997. The increase in the production of several marine species has been particularly spectacular.Salmon production increased over ten fold and marine shrimp over four fold from 1985 to 1994. Aquaculture production accounts for about a third of the total production of both of these species (New, 1997). Aquaculture production is projected to continue to increase in the near future to meet the world's growing protein demand (New, 1997).The expansion of aquaculture has caused some environmental degradation. The major problem is the discharge of untreated effluent into receiving water bodies.The discharge of this effluent can lead to hypernutrification (increased dissolved nutrient levels) and eutrophication in the receiving water body.Effluent is generated through the exchange of water or draining ponds for harvest. Water ...

show abstract

“…Extensive areas of the coastal zone, especially estuarine and bay habitats, are now also used intensively for mariculture on most continents (Shaw 1969, Tenore et al 1985, van der Veer 1989, Pillay 1992. Mariculture activities in estuaries often overlap spatially with the distribution of SAV (Taylor 1954, Thomas & Duffy 1968, Ye et al 1991, Ronnberg et al 1992. While several studies have documented mariculture-induced changes to physical-chemical environments and fauna (Dahlback & Gunnarsson 1981, LaPointe et al 1981, Ottman & Sornin 1985, Tenore et al 1985, Brown et al 1987, Ritz et al 1989, Baudinet et al 1990, Tsutsumi et al 1991, Ye et al 1991, the effects of mariculture on SAV have received comparatively little study.…”

Section: Introductionmentioning

confidence: 99%

Effect of oyster mariculture on submerged aquatic vegetation:an experimental test in a Pacific Northwest estuary

Ra¹,

Ruiz²,

Jt³

1995

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

The effects of commercial culture of oysters Crassostrea gigas, on submerged aquatic vegetation (SAV), Zostera manna, were examined w~t h rephcated field expenments in the South Slough estuary Oregon USA Both stake and rack methods of oyster culture resulted In signlf~cant decreases in the abundance of SAV compared to undisturbed reference areas SAV cover in both stake and rack treatments was less than 25% of that In reference plots after 1 yr of culture, and was absent from rack treatments after 17 mo of culture Field experments using marked plants revealed no difference in growth between plants in stake and reference plots Compansons of sediment surface topography demonstrated that oyster culture resulted in significantly greater sediment deposition in stake plots and greater eroslon In rack plots Silt-clay fractions and carbon content of sediments tended to increase w~t h stake culture and decrease w~t h rack culture but only for carbon content at racks were the differences significant between culture and reference plots Stake culture likely affected SAV via increased sedimentation and direct physical disturbance dunng placement and harvest, while increased eroslon and perhaps shading resulted in the marked decrease in SAV co~ncident with rack culture These results indicate the potential for significant loss of SAV from estuanne ecosystems where these methods of oyster culture and SAV coincide

show abstract

Tracing the influence on sediments of organic waste from a salmonid farm using stable isotope analysis

Cited by 104 publications

References 11 publications

Implications of 13C natural abundance measurements for photosynthetic performance by marine macrophytes in their natural environment

Implications of 13C natural abundance measurements for photosynthetic performance by marine macrophytes in their natural environment

Halophytes for the treatment of saline aquaculture effluent

Effect of oyster mariculture on submerged aquatic vegetation:an experimental test in a Pacific Northwest estuary

Contact Info

Product

Resources

About