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Potential secondary production from herring spawning in the Strait of Georgia


, : Potential secondary production from herring spawning in the Strait of Georgia. Canadian Journal of Fisheries and Aquatic Sciences, 402: 109-113

About 22% of the total herring spawning stock biomass is released annually as milt and eggs. The C contribution from herring spawning products to the Strait of Georgia is small in comparison with estimates of annual primary productivity. When the C contribution is calculated over the .apprx. 50 d day period of spawning, egg incubation and larval emergence for the areas of herring spawning, the estimate of 6.92 g C .cntdot. m-2 .cntdot. d-1 is substantially higher than maximum estimates of primary productivity. Even allowing for considerable dilution and dispersion of spwaning products, the estimate of C contribution is high relative to primary production. This material may be a source of energy to promote secondary production, particularly in the form of microzooplankton, such as protozoa, copepod nauplii, or larvae of benthic animals, all of which could serve as food for emerging herring larvae.

US$19.90

DOI: 10.1139/f83-019


Other references

Rajasekaran, K.; Xiong, V.; Fong, L.; Gorski, J.; Malarkannan, S., 2011: Functional dichotomy between NKG2D and CD28-mediated co-stimulation in human CD8+ T cells. Both CD28 and NKG2D can function as co-stimulatory receptors in human CD8+ T cells. However, their independent functional contributions in distinct CD8+ T cell subsets are not well understood. In this study, CD8+ T cells in human peripheral blood-...

Weber, R.E.; Fitting, S.W.; Jegier, P.A., 1995: Repellent-treated, barrier-coated nonwoven web. Official Gazette of the United States Patent & Trademark Office Patents 1177(3): 1476, Aug 15

Plainer H.; Sproessler B., 1990: Debittering of protein hydrolysates by a new technical exopeptidase preparate. Food Biotechnology (New York) 4(1): 366

Angus, D.C.; Sirio, C.A.; Clermont, G.; Bion, J., 1997: International comparisons of critical care outcome and resource consumption. Though there are reasonable data to suggest that certain countries, such as the United States, spend considerably more money on the provision of critical care services than others, there is little information regarding the added benefits accrued w...

Filaretova, L.; Miyazawa, T.; Tanaka, A.; Kato, S.; Takeuchi, K., 2002: Mechanisms underlying gastroprotective action of glucocorticoids against indomethacin-induced gastric mucosal injury in rats. Inflammopharmacology 10(4-6): 548

Andreev, A.; Perezhogin, V., 1975: Utilization, irrigation and fertilizers for pastures in dry steppes in cis-Ural region. In trials in 1971-4, sown pastures composed of lucerne/brome grass/cocksfoot/Poa pratensis gave average DM yields of 6.67-6.95 t/ha when grazed or cut for hay. When grazed, the proportion of lucerne in the swards decreased from 56% in the 1st year...

Abdel Kader, M.M.; Abdel Aziz, M.T.; Bahgat, R.; Hefnawi, F.; Fawzi, G.; Badraoui, M.H., 1976: Effect of some progestational steroids on lactation in Egyptian women. II. Chemical composition of milk during the first year of lactation. The effects of 4 progestational drugs [see preceding abstr.] on the composition of human milk during the first yr of lactation were studied in Egyptian women. The average protein content (g/100 ml) over the whole period of treatment with the vario...

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Rodenburg, G.D.; Fransen, F.; Bogaert, D.; Schipper, K.; Groenwold, R.H.H.; Hamstra, H.Jan.; Westerhuis, B.M.; van de Beek, D.; van der Ley, P.; Sanders, E.A.M.; van der Ende, A., 2013: Prevalence and clinical course in invasive infections with meningococcal endotoxin variants. Meningococci produce a penta-acylated instead of hexa-acylated lipid A when their lpxL1 gene is inactivated. Meningococcal strains with such lipid A endotoxin variants have been found previously in adult meningitis patients, where they caused less...

Rakhshan, F.; Henn, T.A.; Barker, E.L., 1999: Regulation of uptake of the endogenous cannabinoid anandamide by protein kinase C. Society for Neuroscience Abstracts 25(1-2): 1196