• 한국해양학회지
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• 제26권4호
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• pp.350-357
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• 1991

조간대에 서식하는 고둥류인 좁쌀무늬총알고동, 총알고동, 대수리 등 3종에 대한 유류오염과 유처리제를 이용한 정화작업의 영향을 조사하기 위한 실험을 실시하였다. 라뷰안 원유, 듀바이 원유, 벙커 C유를 실험 생물에 각각 직접 접촉시켰으며, 또한 1 시간 노출시킨 후에 농축형 유처리제로 세척하였다. 원유에 접촉시킨 고동류는 96시간 내에 모두 처사하였으며, 라뷰안 원유가 듀바이 원유보다 높은 독성을 보였다. 벙커 C 유에는 총알고동류가 대수리보다 민감한 반응을 보였으며, 원유 접촉시보다는 서서히 독성효과가 나타났다. 높은 농도의 유처리제를 이용한 전화작업은 고동류에게 치명적 인 영향을 주었으며, 낮은 농도에서도 총알고동류에게 유해한 영향을 주었다. 대수리 는 분산된 유류에 노출될 경우 250 ppm 이하의 농도에서는 도피행동을 보였다. 유류오 염과 유처리제를 이용한 정화작업은 고동류의 흡착기능을 저해하여 물리적인 힘에 의 해 서식지 이탈을 유발시킬 수 있을 것으로 보인다.

• 한국패류학회지
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• 제16권1_2호
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• pp.55-60
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• 2000

동양에서 쓰이고 있는 약용패류는 육상 복족류 2과 5종, 담수 복족류 1과 2종, 해산 복족류 5과 23종, 담수 이매패류 3과 9종, 해산 이매패류 5과 24종 등 총 16과 63종이 약용패류로 사용되고 있었다. 이 중 한국산 약용패류는 담수 복족류 1종, 담수 이매패류 4종. 해산 복족류 7종, 해산 이매패류 10종 등 총 22종이 포함되었다. 앞으로 한국산 약용 연체동물 22종은 종 다양성 유지 및 그 보존적 차원에서 특별히 관리, 보존되어야 할 것으로 사료된다.

• 한국어류학회지
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• 제10권1호
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• pp.24-31
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• 1998

1994년 1월부터 1994년 12월까지 광양만 대도주변 잘피밭에서 채집된 줄망둑의 식성을 조사하였다. 줄망둑의 주요 먹이생물은 단각류(특히 옆새우류), 갯지렁이류 및 복족류였으며, 그 외 요각류, 주걱벌레붙이류, 게류, 이매패류 등이 소량씩 위내용물 중 발견되었다. 줄망둑이 성장함에 따라 먹이생물의 조성이 점차 변하였다. 체장이 작은(1~2cm SL) 줄망둑은 옆새우류를 주로 먹었으나, 처장이 증가하면서 옆새우류가 위내용물 중 차지하는 비율은 점차 낮아진 반면, 갯지렁이류 및 복족류가 차지하는 비율은 증가하였다. 계절에 따라 먹이생물 조성이 다소 변했는데, 여름에는 옆새우류와 갯지렁이류가, 그리고 겨울에는 복족류가 차지하는 비율이 다른 계절에 비해 높았다.

• Molecular & Cellular Toxicology
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• 제3권1호
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• pp.1-10
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• 2007

The persistent and ubiquitous environmental contaminant, tributyltin chloride (TBT), induces not only imposex in gastropods but also the differentiation of adipocytes in vitro and increases adipose mass in vivo in vertebrates. TBT is a nanomolar affinity ligand for retinoid X receptor (RXR) in the rock shell(Thais clavigera) and for both the RXR and the peroxisome proliferator activated receptor $\gamma(PPAR\gamma)$ in the amphibian (Xenopus laevis), mouse, and human. The molecular mechanisms underlying induction of imposex by TBT have not been clarified, though several hypotheses are proposed. TBT promotes adipogenesis in the murine 3T3-L1 cell model and perturbs key regulators of adipogenesis and lipogenic pathways in vivo primarily through activation of RXR and $PPAR\gamma$. Moreover, in utero exposure to TBT leads to strikingly elevated lipid accumulation in adipose depots, liver, and testis of neonate mice and results in increased adipose mass in adults. In X. laevis, ectopic adipocytes form in and around gonadal tissues following organotin, RXR or $PPAR\gamma$ ligand exposure. TBT represents the first example of an environmental endocrine disrupter that promotes adverse effects from gastropods to mammals.

• Ocean and Polar Research
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• 제44권4호
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• pp.331-338
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• 2022

The high latitude scleractinian coral Alveopora japonica Eguchi, 1965 occurs in high density in the shallow rocky subtidal in Jeju Island, forming coral carpets. Despite its ecological role providing a unique habitat for other benthic organisms, the benthic fauna associated with the A. japonica coral carpet is poorly known. To identify fauna associated with the coral carpet, we explored three sites dominated by A. japonica and one control site on northwestern Jeju Island in May 2013. Using SCUBA, we collected A. japonica and the epibenthic mega-fauna associated with the colonies in 1×1 m² and identified them to the species level. At a depth of 10 to 15 m, A. japonica colonies heavily covered the seafloor, forming a layer called a coral carpet, with a density of 94 (Keumneung-ri), 133 (Biyangdo), and 155 (Gwidok-ri) colonies/m². Thirty-four molluscan species were identified from the four sites, including 20 bivalves and 14 gastropods. The coral carpets were enriched with sessile bivalves compared to the control site, as we identified twenty bivalve and eight gastropod species from the coral carpets. Most bivalve species associated with the coral carpets had tropical-subtropical affinities, while gastropods were mainly subtropical and subtropical-low boreal species. Leiosolenus lischkei M. Huber, 2010, in the family Mytilidae and Barbatia steamsi (Pilsbry, 1895), in the family Arcidae, were the two most abundant bivalve species in the coral carpet, L. lischkei being a borer, and B. stearnsi a nestler. The tropical to subtropical Pacific star shell Astralium haematragum (Menke, 1829)was the most abundant gastropod at the study sites. The bivalves and gastropods associated with the coral carpet were small-sized juveniles or sub-adults, suggesting that the coral carpet provides a micro-habitat for the bivalves and gastropods.

• Animal cells and systems
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• 제15권4호
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• pp.325-336
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• 2011

Feeding ecology was compared among the three tonguefishes Cynoglossus abbreviatus, C. joyneri and C. robustus, collected from Seto Inland Sea, Japan, from June 2000 to May 2001. They are benthivores, consuming mainly gammarid amphipods, shrimps, crabs, gastropods, bivalves and ophiuroids. C. abbreviatus consumed greater proportions of ophiuroids whereas C. joyneri and C. robustus ate more amphipods and shrimps. While C. abbreviatus consumed mostly ophiuroids in all size classes, the diets of C. joyneri and C. robustus showed ontogenetic changes in feeding habits; smaller individuals of C. joyneri and C. robustus consumed gammarid amphipods, whereas larger C. joyneri ate shrimps and gastropods, and larger C. robustus fed mainly on gastropods, crabs, bivalves and polychaetes. Cluster analysis based on diet similarities emphasized that the three Cynoglossus species could be categorized on a size-related basis into three feeding groups: smaller C. joyneri and C. rubustus (<25 cm TL) could be classified as group A, and the larger of them (>25 cm TL) as group B, whereas C. abbreviatus was categorized as group C. This means that some degree of resource partitioning can occur among the three Cynoglossus species. The seasonal changes in the diets were also significant for the three Cynoglossus species.

• Journal of Ecology and Environment
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• 제48권1호
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• pp.60-73
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• 2024

Background: The available information on terrestrial pest gastropods and their impact on the environment worldwide is scarce and outdated. The present study aimed to address this gap by conducting the first comprehensive survey of pest gastropods in the Nuwara Eliya District, an important vegetable growing area in the highlands of Sri Lanka. Eighty agricultural lands were surveyed over two years by establishing ten 1 m2 sampling plots per crop type in each agricultural land. Geo-coordinates, air temperature, elevation, relative humidity, daily rainfall, soil pH, species richness and abundance were recorded for rainy and non-rainy periods. The relationship between species composition and environmental variables was analyzed using multi-regression models and distribution maps. Results: Out of the 14 species recorded in agricultural lands, nine were identified as exotic pest species. Species abundance (t = 4.69, p < 0.05) and diversity was higher in the rainy period and the dominant species during this period were Bradybaena similaris (t = 2.69, p < 0.05) and Deroceras reticulatum (t = 2. 46, p < 0.05). Eggs and estivating adults were found in soil and under decaying organic matter during the non-rainy period. The exotic species showed broader preferences for the measured environmental factors and showed a wider range in distribution compared to the native species. Variation in pest gastropod composition was significantly accounted for by elevation, relative humidity, soil pH and daily rainfall. Additionally, the species richness and abundance varied across locations due to the combined effects of elevation, crop type and stage, and field type. Conclusions: The study emphasizes the importance of understanding the biology and ecology of gastropod pests to develop effective management strategies. By considering the influence of environmental factors and implementing appropriate soil management techniques, such as targeting specific habitats and crop stages, it is possible to mitigate pest populations and minimize their impact on agricultural lands. Overall, this research contributes valuable insights into the dynamics and interactions of terrestrial gastropods in agricultural ecosystems, supporting sustainable pest management practices.

• 한국패류학회지
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• 제13권2호
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• pp.97-108
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• 1997

A review of literature and original data on content and distribution of gastropods, inhabition fresh bodies of water in the Southern Russian Far East is presented. The annotated list includes 98 species in 19 genera and 10 fimilies of Gastuopoda.

• 한국동물학회:학술대회논문집
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• 한국동물학회 2001년도 한국생물과학협회 학술발표대회
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• pp.115.2-115
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• 2001

No Abstract, See Full Text

• 한국수산과학회지
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• 제42권1호
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• pp.73-77
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• 2009

Feeding habits of released Sebastes inermis obtained in daily and monthly collections from August 2007 to December 2007 in coastal waters off Jam Island in Jinhae Bay, Korea were assessed. A total 151 individuals of S. inermis (6.3-9.7 cm TL) were recaptured during the study period. Initial food intake of released S. inermis occurred within three days of released. Stomach content index increased with time, however, the percentage of stomachs devoid of contents decreased. Sebastes inermis mainly consumed gammarid and caprellid amphipods, gastropods and mysids. Diet also included small quantities of bivalves, shrimps, copepods and ostracods. Amphipods were mainly consumed at all size groups and consumption of gastropods, bivalves and shrimps increased with increasing fish size.