+ 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

Life cycles and population dynamics of marine benthic polychaetes from the disko bay area of west greenland

, : Life cycles and population dynamics of marine benthic polychaetes from the disko bay area of west greenland. Ophelia 16(1): 9-58

A time series of benthic samples obtained at 4 locations near Godhavn, Greenland, during 1959-1960 and in 1971 was analyzed to yield information on the life cycles and population characteristics of polychaetes inhabiting that subarctic marine area. Utilizing a population dynamics approach, production values were calculated for a common species, Terebellides stroemii, and the annual production-to-biomass ratio for this species was near unity. Biomass, and probably benthic production, appeared higher near exposed coasts than within the fjords. Reproductive modes were determined for 35 of the 48 spp. collected; 25 produced directly-developing or lecithotrophic larvae, 8 produced planktotrophic larvae, and 2 reproduced asexually. Planktotrophic species reproduced only in the spring and summer, but lecithotropic and direct forms propagated at all seasons of the year. This phenomenon is regarded as a means for dampening the potentially deleterious effects of extremes in food availability during the annual productive cycle of the subarctic marine ecosystem.


DOI: 10.1080/00785326.1977.10425460

Other references

Castillo, A.R.; Gallardo, M.R.; Gaggiotti, M.C.; Garcia, M.S.; Quiano, O.; Arakiki, C., 2003: Manipulating rumen fermentation of dairy cows fed fresh alfalfa using feed additives. Journal of Dairy Science 86(Supplement 1): 223

Meyer-Rienecker, H.; Olischer, R.M., 1967: Liquor findings in intracerebral tumor metastases. Zeitschrift für Arztliche Fortbildung 61(20): 991-996

Ponganis, P.J.; Kreutzer, U.; Sailasuta, N.; Knower, T.; Hurd, R.; Jue, T., 2002: Detection of myoglobin desaturation in Mirounga angustirostris during apnea. H NMR solution-state study of elephant seal (Mirounga angustirostris) myoglobin (Mb) and hemoglobin (Hb) establishes the temperature-dependent chemical shifts of the proximal histidyl N[delta]H signal, which reflects the respective intracellular a...

Zhou, S.; Abdouh, M.; Arena, V.; Arena, M.; Arena, G.Orazio., 2017: Reprogramming Malignant Cancer Cells toward a Benign Phenotype following Exposure to Human Embryonic Stem Cell Microenvironment. The embryonic microenvironment is well known to be non-permissive for tumor development because early developmental signals naturally suppress the expression of proto-oncogenes. In an analogous manner, mimicking an early embryonic environment duri...

Caillol, H., 1913: Sur le developpement anormal d'une espece de Coleoptere. Bulletin Societe Linneenne de Provence, 2: 72-86

Karl Ver Steeg, 1930: Wind gaps and water gaps of the northern Appalachians, their characteristics and significance. Annals of the New York Academy of Sciences 32(1): 87-220

Kauhala, K., 1992: Ecological characteristics of the raccoon dog in Finland. Unknown

Aminuddin M.; Athar T.H.; Mahmood T., 1992: Non aqueous titrimetric determination of oxytetracycline hydrochloride. Pakistan Journal of Scientific & Industrial Research 35(3): 90-92

Wylie, K.H., 1946: Ecuador's agriculture and the war. Differences in the climate and soil have produced two entirely dissimilar regions in Ecuador having little interrelationship. The western lowlands-the coastal region-produces crops for the export market, the principal crops being rice, cacao, coff...

Schlueter U.; Seifert G., 1988: Inducing melanotic nodules within the fat body of the last instar larvae of epilachna varivestis coleoptera by azadirachtin. Injection of minute amounts of azadirachtin causes formation of numerous small (20- to diameter) nodules in the fat body of last instar larvae of the Mexican bean beetle, Epilachna varivestis. About 1 day after injection, some fat body ce...