• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2003.05a
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• pp.355-356
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• 2003

잘피밭은 해양의 생태계 중 가장 생산성이 높은 해역 중의 하나로 최근에 많은 연구의 대상이 되고 있다 잘피는 잘 발달되어 있는 뿌리를 지니고 있으며, 흔히 온대와 열대의 연안해역에 밀생하여 무성한 해초지 (seagrass meadow)를 형성하고 있다. 본 조사해역인 경남 진동만은 연안을 따라서 잘피가 많이 밀생하고 있어서 생산성이 매우 높고, 자치어를 비롯한 많은 해양생물들이 큰 생물들로부터 보호되고 있는 좋은 서식처의 역할을 하고 있다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.549-550
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• 2001

해초생태계는 해양의 생태계 중 가장 생산성이 높은 해역 중의 하나로 최근에 많은 연구의 대상이 되고 있다. 해초는 잘 발달되어 있는 뿌리를 지니고 있으며, 흔히, 온대와 열대의 연안해역에 밀생하여 무성한 해초지 (seagrass meadow)를 형성하고 있다. 본 조사해역인 호주 동북부, Magnetic Island주변에 위치한 Cockle Bay는 많은 종류의 열대성 해초가 연안을 따라서 많이 밀생하고 있어서 생산성이 매우 높고, 자치어를 비롯한 많은 해양생물들이 큰 생물들로부터 보호되고 있으며, 바다거북류 및 듀우공들의 좋은 먹이공급처의 역할을 하고 있다. (중략)

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.22 no.4
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• pp.199-204
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• 2017

To examine the ecological characteristics of seagrasses growing naturally in Dokdo, shoot morphology and density of seagrasses in a study site each from Dongdo and Seodo, where seagrasses occurred, were investigated in September 2016. In the study sites, Phyllospadix japonicus Makino, a protected seagrass species, was found to be scattered, forming small clusters. P. japonicus shoots from the study sites in Dongdo and Seodo were morphologically similar. The mean leaf width was 2.0 mm at both study sites in Dongdo and Seodo. Numbers of leaves per shoot was 4.8 and 4.7, and the leaf lengths were 42.5 cm and 41.9 cm, in Dongdo and Seodo, respectively. The shoot densities were $3,500{\pm}334.2shoots\;m^{-2}$ and $2,275{\pm}415.1shoots\;m^{-2}$, in Dongdo and Seodo, respectively, with no significant difference. Shoot density and morphological chacteristics of P. japonicus in Dokdo were similar to those on the eastern coast of the Korean peninsula.

• Journal of the korean society of oceanography
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• v.36 no.4
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• pp.109-123
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• 2001

The importance of phytoplankton, benthic vegetation, vascular marsh plants (primarly Phragmites communis and Salix gracilstyla) and riverine particulates inputs to the coastal bay food web was studied in Kwangyang Bay, Korea using stable carbon isotope ratios. Vascular marsh plants (${\delta}^{13}$C=-27.4${\pm}$0.8%o) and riverine particulates (-26.0${\pm}$0.8%o) were isotopically distinct from phytoplankton (-20.7${\pm}$0.8%o), microphytobenthos (-14.2${\pm}$0.6%o) and seagrass (8.8%o). The ${\delta}^{13}$C values of consumers in the study site ranged from -20.2 to -11.3olo suggesting the assimilation of carbon derived from both phytoplankton and benthic vegetation (including algae and seagrass), The relative importance of both pelagic and benthic origins of food sources was likely to vary depending on feeding habit of the consumers. The isotopic difference between pelagic and benthic consumers indicated that plankton-derived carbon was used mostly by pelagic consumers, but the carbon derived from intertidal benthic vegetation was incorporated into food webs through benthic consumers. The ${\delta}^{13}$C values of consumers in the present study differed noticeably from published values of the phytoplankton-based ecosystem, particularly in the $^{13}$C enrichment of benthic grazers, deposit-feeders and demersal feeders of fishes. This tendency of the $^{13}$C enrichment was also found in suspension-feeding bivalves. Taking the biomasses of benthic vegetation into consideration, benthic microalgae was likely to account for the consumer $^{13}$C enrichment. Role of terrestrially derived riverine carbon was limited to the riverine system and was not evident within the bay systems. Phragmites, despite their important biomass, appeared to be of little importance as consumer diet.

• Korean Journal of Ichthyology
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• v.28 no.4
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• pp.249-259
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• 2016

Monthly variation in species composition was determined using fish samples collected by a beach seine between October 2013 and September 2014 in the eelgrass bed in Aenggang Bay, Namhae, Gyeongsangnamdo. A total of 3,174 individuals of 35 species, amounting to 3,137 g were collected. The dominant species was Gymnogobius heptacanthus, followed by Pholis nebulosa, Rudarius ercodes, Favonigobius gymnauchen and Hypodytes rubripinnis. Almost all fish collected were small in size or juveniles. Seasonal variation of species composition showed that the dominant species, used the shallow area of the eelgrass bed as a nursery ground and moved to a deeper water as they grew. Saurida elongata, Inimicus japonicus, Sphyraena pinguis, and Arothron hispidus, were first reported in an eelgrass bed in the southern coastal water.

• Korean Journal of Ecology and Environment
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• v.33 no.4 s.92
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• pp.336-341
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• 2000

This study was conducted to clarify the habitat characteristics and distribution of seagrass. Zostera marina L. (Zosteraceae) in the brackish Hwajinpo Lake, Korea in June 1998 and July 2000. Z. marina beds were distributed along the sea-side cost of the lower lake mouth at 0.8 to 1.5m in death, and the seagrass bed area was about 3,200 m$^{2}$. Salinity, water temperature and pH were in the range of 8.0${\sim}$23.0$%_{o}$, 22.0${\sim}$23.7$^{\circ}C$ and 8.34${\sim}$8.62, respectively. Nutrient concentrations were generally now (TN: 24.34 ${\mu}$M, NH$_{4}$-N: 2.57 ${\mu}$M, NO$_{3}$-N: 0.56 ${\mu}$M, NO$_{2}$-N: 0.27 ${\mu}$M, TP: 2.08 ${\mu}$M, PO$_{4}$-P: 0.34 ${\mu}$M). Suspended particulate matters (SPM) concentration averaged 62.8 mg/l and particulate organic matter (POM) averaged 21.3 mg/l. Organic content of SPM averaged 33.9%. The beds substratum was composed of well-sorted, fine sand and its mean brain size was 3.13${\Phi}$. The Z. marina vegetation was almost submerged, and the morphological characteristics can be classified as steno-leaf phenotype by the shoot length, leaf width, and number of leaf vein. Shoot length and leaf width were 70.0${\sim}$126.5 cm and 5${\sim}$7 mm, respectively. Shoot densities ranged from 264 to 296/m$^{2}$, and the plants biomass was estimated at 332.6 to 373.0 g dw/m$^{2}$. Therefore, the habitats of Z. marina in Korea were recognized in a brackish lake, and morphological characteristics appeared to be variable.

• Animal Systematics, Evolution and Diversity
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• v.33 no.3
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• pp.176-188
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• 2017

Paramenophia platysoma (Thompson and Scott, 1903) is newly reported from Korean waters based on the materials collected from several seagrass and algal bed habitats. The Korean materials of P. platysoma in the present study coincide well with the original description of the species with respects to the characteristic features of the first, fourth, and fifth legs, and in most respects to P. platysoma sensu $Gam{\hat{o}}$ (1969) reported from Japan except for the antennary exopod. However, they show some differences to P. platysoma sensu Pallares (1973, 1975) reported in Argentina, in terms of the morphology of the fifth leg in females and the second leg in males. Detailed description and illustrations of P. platysoma are provided for both sexes. The morphological features of Paramenophia species are discussed and a key to the species of genus is provided.

• Korean Journal of Environmental Biology
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• v.33 no.2
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• pp.170-176
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• 2015

Oncholaimid nematode, Oncholaimus secundicollis Shimada, Kajihara and Mawatari, 2009, is firstly reported based on a comparative morphological study. The present specimens of O. secundicollis are collected from rocky intertidal seagrass on the eastern coast of Korea. Oncholaimus secundicollis is distinguished from all of its congeners by the following combination of morphological characteristics: buccal cavity large with thick cuticular wall and three teeth, left subventral tooth larger than right subventral or dorsal teeth, and the presence of two remarkable precloacal papillae with nine pairs of cloacal setae and single ventral tail papilla with two pairs of short setae. In this study, we provide taxonomic description and illustration of unrecorded species of the genus Oncholaimus.

• Proceedings of the Acoustical Society of Korea Conference
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• spring
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• pp.187-190
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• 2004

본 논문에서는 연안에 서식하는 잘피(Zostera Marina)의 시공간적 분포와 생산성을 파악하기 위해 음향실험을 통한 분석을 시도하였다. 해저면이 니질로 구성된 잘피 서식지에 수평입사각 및 방위각에 따라 120 kHz 및 50 kHz 음원을 이용하여 송${\cdot}$수신 하였다. 수평입사각 및 방위각에 대한 수신 신호의 산란강도를 표현하였으며 그 분포양상이 실제분포와 유사한 경향을 보인다. 각 음원의 주${\cdot}$야간별 신호에서는 산란강도의 차이가 관측되었다. 이를 통해 잘피의 광합성에 의한 공기방울의 음파산란 영향에 대한 가능성을 확인하였다.

• Proceedings of the Acoustical Society of Korea Conference
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• spring
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• pp.191-194
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• 2004

본 연구에서는 해양의 기초 생산자인 잘피 (Zostera marina)의 후방산란 특성을 일주기 동안 관측 하였다. 해상 실험은 2004년 2월 $25\~29$일 기간 중 남해 동대만에서 실시 하였다. 그랩(Grab)을 이용하여 해초지의 입도를 분석 하였으며 주파수별 산란 특성을 고려하기 위해서 17, 30, 50, 80, 100, 그리고 120kHz 음원을 해초지에 수직 지향하여 주, 야간 잘피의 후방 산란을 측정하였다. 실험 환경 분석을 위해 파고와 조석 및 잘피의 생체량(biomass)측정을 실시 하였다. 광합성 시 해초지에서 발생되는 산소 공기는 해수에 의해 용존 되거나 산소 가스 형태로 존재하게 된다. 이들 공기 방울에 의해서 형성되는 공기 방울 층은 음 세기의 감쇠를 야기 시킨다. 실험 결과 주, 야간 동안 음의 산란 강도 변화를 확인 하였다.