Ecological and Morphological Characteristics of Zostera caulescens Miki (Zosteraceae) in Korea

이상룡,; 서영배,; 김상태,; 최청일,

doi:10.4217/opr.2002.24.4.345

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…The ecology of Z. japonica populations is relatively well‐known in subtropical areas of Asia (Lee 1997; Fong et al. 2000; Lee 2001; Huong et al. 2003) and the Pacific coast of North America (Harrison 1976, 1982; Harrison & Bigley 1982; Bigley & Harrison 1986; Baldwin & Lovvorn 1994; Bulthuis 1995; Thom et al.…”

Section: Problemmentioning

confidence: 99%

“…Since then, Z. japonica has continued to expand along the Pacific Northwest coast of North America (Kaldy 2006). The ecology of Z. japonica populations is relatively well-known in subtropical areas of Asia (Lee 1997;Fong et al 2000;Lee 2001;Huong et al 2003) and the Pacific coast of North America (Harrison 1976(Harrison , 1982Harrison & Bigley 1982;Bigley & Harrison 1986;Baldwin & Lovvorn 1994;Bulthuis 1995;Thom et al 1995;Dumbauld & Wyllie-Echeverria 2003;Kaldy 2006).…”

mentioning

confidence: 99%

“…On the coast of Korea, Z. marina is the most abundant seagrass species, and is widely distributed in intertidal or subtidal zones in sheltered bays and brackish lagoons. In contrast, Z. japonica populations are distributed only locally along island coasts of the South and Yellow Sea (Lee 2001;Lee & Lee 2003;Lee et al 2005b). In Dadae Bay, Z. marina and Z. japonica occur in adjacent meadows; Z. marina occurs in the subtidal zone and Z. japonica in intertidal flats.…”

mentioning

confidence: 99%

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Temporal dynamics of subtidal Zostera marina and intertidal Zostera japonica on the southern coast of Korea

Lee¹,

Kim²,

Lee³

2006

Marine Ecology

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ProblemThe temporal dynamics of different seagrass species in the same locality exhibit similar responses to seasonal forcing, but the magnitude of fluctuations in seasonal growth is species-dependent (Marba et al. 1996). In temperate waters, the strong seasonality of seagrasses responds, in the form of plant growth, to seasonal variation in light and temperature (Phillips et al. 1983; Olesen & SandJensen 1994;Laugier et al. 1999). A comparative analysis of the growth dynamics of different seagrass species forming monospecific meadows showed that differences in shoot growth and species-specific differences in seasonal dynamics are associated with differences in seagrass size. Large species are longer-lived and slower-growing, whereas smaller species are shorter-lived and grow faster (Duarte 1991;Marba et al. 1996). Seagrass size differences may determine the type of environment they occupy; small species usually inhabit frequently disturbed habitats, whereas large seagrasses require more stable environments AbstractThe temporal dynamics of two seagrass species, Zostera marina and Z. japonica, were monitored monthly in Dadae Bay, Geoje Island, on the southern coast of Korea. Plant morphological characteristics, shoot density, biomass, leaf production, reproductive effort, and environmental characteristics were monitored from July 2001 to July 2002. Zostera japonica occurred in the intertidal zone and Z. marina occurred in the subtidal zone from 0.5 to 2.5 m below the mean low water level. Shoots and rhizomes were significantly larger in Z. marina than in Z. japonica, whereas the shoot density was greater in Z. japonica than in Z. marina. Despite differences in morphology and shoot density, biomass did not differ significantly between the species. Reproduction occurred from April to June in Z. marina and from May to July in Z. japonica. The proportion of reproductive shoots was approximately three times higher in Z. marina than in Z. japonica. Seasonal variation in the biomass of Z. japonica was caused by changes in both shoot size and density, whereas that of Z. marina was mainly caused by changes in shoot length. Leaf production in Z. marina and Z. japonica showed clear seasonal variation, and leaf production in Z. marina (2.6 ± 0.2 g DWAEm )2 AEday )1 ) was higher than that in Z. japonica (1.7 ± 0.2 g DWAEm )2 AEday )1 ). The mean plastochrone interval was not significantly different between the two species, whereas the leaf lifetime of Z. marina was longer (69 ± 7.8 days) than that of Z. japonica (59 ± 8.3 days). Our results indicated that seasonal leaf growth patterns in Z. japonica are correlated with irradiance and temperature, whereas those in Z. marina respond most to irradiance. Seasonal changes in irradiance appeared to control the temporal variation in above-ground biomass in both species.

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