geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Starvation and the size structure of zoo plankton communities


, : Starvation and the size structure of zoo plankton communities. Freshwater Biology 6(6): 489-496

The survival time of zooplankton under conditions of total starvation is expressed as a function of weight-specific respiration rate and the fraction of initial (pre-starvation) body weight which may be lost prior to death. Data from the literature on these 2 components of survival time are used to formulate a general expression of survivorship of zooplankton at 20.degree. C as a function of body weight: t = 2.95 w0.25, where t is in days and w is .mu.g dry weight. Survival time data from the literature on 25 marine and freshwater species are compared to this prediction as are new data on Daphnia pulex Leydig, D. magna Straus and Simocephalus serrulatus (Koch). The effects of age-specific (non-starvation) mortality are considered; in particular, older individuals of each of these species survive for shorter periods of time than predicted and an interaction between age-specific and starvation-induced mortality is proposed. The effects of total and partial starvation on the size structure of zooplankton communities are discussed.

US$29.90


Other references

Martin, H.; Martin, R., 1980: RNA-metabolism in aging. After intraperitoneal application of 14C-orotic acid the tracer distribution and the labelling of total RNA in different organs of two groups of Wistar rats (5 and 22,5 months old) were represented. After 60 min 2/3 of tracer were found in liver a...

Erkan, M.; Sousa, M.; Carvalho, E.; Oliveira, E.; Baldaia, L., 2001: Fine silver staining analysis of the nucleolar organizer regions during oogenesis in Penaeus kerathurus (Crustacea, Decapoda). In previtellogenic oocytes, nucleoli showed segregated components, with the dense fibrillar component (DFC) appearing highly developed and presenting several fibrillar centers (FC). The granular component (GC) was less developed and formed a wide-...

Hooper, K.C.; Banks, D.A.; Stordahl, L.J.; White, I.M.; Rebec, G.V., 1997: Quinpirole inhibits striatal and excites pallidal neurons in freely moving rats. The activity of single neurons in the striatum of freely moving rats was recorded in response to systemic administration of dopamine agonists selective for either the D1 or D2 family of receptors. At a dose that induced behavioral activation, SKF-...

Watt, K.D.S.; Lyden, E.R.; Gulizia, J.M.; McCashland, T.M., 2005: Recurrent hepatitis C posttransplant: early preservation injury may predict poor outcome. Organ cold/warm ischemia is thought to be a risk factor for increased severity of recurrence of hepatitis C (HCV) post liver transplantation. We had noted some HCV patients with preservation injury (PI) to have particularly poor outcomes. Our goal...

Cabañes Higuero, N.; Arias Irigoyen, J.; Moral de Gregorio, A., 1995: Chronic urticaria as a manifestation of hydatidosis. Revista Clinica Espanola 195(7): 518-519

Aguilar-Parada, E.; Rivera-Claisse, E.; Rivadeneyra, J., 1972: Clinical case of nontumoral pseudohyperparathyroidism. Archivos de Investigacion Medica 3(2): 131-134

Pettersen, J.A.; Singh, A., 2017: Potentially Reversible Rapid-Onset Weakness: Recognizing Colchicine Toxicity. American Journal of Medicine

L.W.nxue; Zhang Longrong; Jiang Naiqian; Zhang Cuiping, 2000: Experiment study of scour by water jets; 2. Based on laboratory experimental results, a universal formula was established which could express the jet flow intensity both for circular and rectangular jet nozzle. The dimensions of the scour hole were correlated with the jet flow intensity. Th...

Hedskog, C.; Chodavarapu, K.; Ku, K.S.; Xu, S.; Martin, R.; Miller, M.D.; Mo, H.; Svarovskaia, E., 2016: Genotype- and Subtype-Independent Full-Genome Sequencing Assay for Hepatitis C Virus. Hepatitis C virus (HCV) exhibits a high genetic diversity and is classified into 6 genotypes, which are further divided into 66 subtypes. Current sequencing strategies require prior knowledge of the HCV genotype and subtype for efficient amplifica...

Bartorelli, A.; Berra, B.; Colombo, I.; Ronchi, S., 2000: Nucleotide sequence encoding a 14 kDa protein from goat liver. A complete cDNA sequence (SEQ ID NO: 1) is described, which codes for a 14 kDa protein (SEQ ID NO: 2) obtainable from goat liver. This protein shows marked anti-neoplastic activity both in vitro and in vivo. The serum of animals immunized with thi...