scholarly journals Life Cycle Characteristics of the Deep-Burrowing Mud Shrimp Upogebia Major (Thalassinidea: Upogebiidae) on a Tidal Flat Along the Northern Coast of Tokyo Bay

2003 ◽  
Vol 23 (2) ◽  
pp. 318-327 ◽  
Author(s):  
Kyoko Kinoshita ◽  
Toshio Furota ◽  
Satoko Nakayama
Keyword(s):  
Life Cycle ◽  
Tidal Flat ◽  
Tokyo Bay ◽  
Northern Coast ◽  
Mud Shrimp

Prevalence and patterns of infection by the epicaridean parasite, Gyge ovalis and the emergence of intersex in the estuarine mud shrimp, Upogebia major

2013 ◽  
Vol 94 (3) ◽  
pp. 557-566 ◽  
Author(s):  
Jonathan P. Ubaldo ◽  
Takahiro Nanri ◽  
Yoshitake Takada ◽  
Masayuki Saigusa
Keyword(s):  
Tidal Flat ◽  
Abdominal Segment ◽  
Early Infection ◽  
Host Size ◽  
Tidal Level ◽  
Tidal Zone ◽  
Cuticular Ridge ◽  
High Prevalence ◽  
The Seto Inland Sea ◽  
Mud Shrimp

A population of the mud shrimp, Upogebia major, inhabiting Kasaoka Inlet had a higher frequency of intersex males compared to other populations in the Seto Inland Sea, Japan. This population also featured a high prevalence of the branchial epicaridean parasite, Gyge ovalis, and inhabited a tidal flat characterized by increasingly softer sediments going into the lower tidal areas. We examined the rates at which infection co-occurred with intersex features and checked whether infection patterns varied with intersex occurrence according to host size and tidal level position. Fewer specimens were both intersex and infected than those having only one of either condition; infection was not a significant predictor of intersex. However, infection in young hosts that recovered from the parasite could be associated with the intersex morphologies and account for the majority of cases that were intersex but parasite-free. Deletions of the cuticular ridge (CRD) between the first and second abdominal segment and tidal level position were correlated with intersex. Lower tidal zone mud shrimp were, respectively, three and four times more likely to be intersex and exhibit CRD than those in the upper tidal zone. Potentially inclusive factors that may influence these trends are higher rates of early infection and increased exposure to sediment-bound pollutants in mud shrimp inhabiting the lower tidal areas.

scholarly journals Field Observation to evaluate Function of Yatsu Tidal Flat in Nutrients Budget of Tokyo Bay in Autumn

2008 ◽  
Vol 55 ◽  
pp. 1126-1130
Author(s):  
Asami WADA ◽  
Ryota OSHIRO ◽  
Yukio KOIBUCHI ◽  
Shinji SATO ◽  
Masahiko ISOBE
Keyword(s):  
Tidal Flat ◽  
Field Observation ◽  
Tokyo Bay

Utilization of Adaptive Management Technique for Restoration of Large-Scale Tidal Flat in Tokyo Bay

2010 ◽  
Author(s):  
Tetsuo Ohmura ◽  
Yoichi Arai ◽  
Takeo Kondo ◽  
Yasushi Hosokawa
Keyword(s):  
Adaptive Management ◽  
Tidal Flat ◽  
Large Scale ◽  
Tokyo Bay ◽  
Management Technique ◽  
Shallow Sea ◽  
Systematic Observation ◽  
Technical Approach ◽  
Technical Problems

This paper proposes that the pilot field be created to apply the Adaptive Management Technique in order to promote the policy of large-scale restoration of the tidal flat/shallow sea. It will be a case study in Tokyo Bay, a major enclosed urban sea in Japan. The motif and background of the study are stated in the beginning. Creation of the symbiotic structure with marine life, of which the artificial tidal flat is a representative example, is more and more in need as a new direction of port environmental policymaking. This paper discusses that the creation of large-scale tidal flat will be especially effective in Tokyo Bay, a highly reclaimed and enclosed sea and that an innovative technical approach is necessary in view of the long-term efforts. First, an artificial tidal flat built in the past, Itsukaichi Area Artificial Tidal Flat in Hiroshima Prefecture, was analyzed to identify its technical problems. Based on what occurred in this case, the need for a new technical approach to practice the Adaptive Management Technique is discussed. Secondly, Tokyo Bay is taken up as a case study. With the ultimate goal of restoring the tidal flat/shallow sea on a large-scale, it is proposed that small pilot fields be created in the Bay and that the Adaptive Management Technique be applied. Technical and social problems will be addressed step by step in the pilot field, which will be gradually expanded. They are open experimental fields, where systematic observation will be conducted. Technically appropriate structure of the tidal flat will be assessed. The pilot field will also be a forum where consent and support of those concerned including citizens and non-specialists is sought. Furthermore, “Shiosai no Nagisa,” an artificial tidal flat with a reinforced seawall in Port of Yokohama is examined from the viewpoint of the Adaptive Management Technique. It was built by Kanto Regional Bureau of Ministry of Land, Infrastructure, Transport & Tourism in 2008.

scholarly journals The Thalassinidean Mud Shrimp Upogebia vasquezi: Life Cycle and Reproductive Traits on the Amazonian Coast, Brazil

2017 ◽  
Author(s):  
Danielly Brito de Oliveira ◽  
Fernando Araújo Abrunhosa ◽  
Jussara Moretto Martinelli-Lemos
Keyword(s):  
Life Cycle ◽  
Reproductive Traits ◽  
Mud Shrimp

KERAGAMAN IKTIOFAUNA MUARA SUNGAI CIMANUK, INDRAMAYU, JAWA BARAT

2018 ◽  
Vol 17 (1) ◽  
pp. 39 ◽  
Author(s):  
Prawira ARP Tampubolon ◽  
Yunizar Ernawati ◽  
M.F. Rahardjo
Keyword(s):  
Life Cycle ◽  
River Estuary ◽  
Northern Coast ◽  
Total Fish

Cimanuk river, which the estuary formed a delta, is a habitat for many fishes that occupied the water in northern coast of Ja va. The estuary is essential for supporting the fish life cycle. The aim of this study was to asscess the diversity of ichthyo fauna in Cima nuk River estuary. The fishes were collected in three months from July to September 2013 at three locations: Pagirikan, Pabean Ilir and Song. Total fish collected were 1,826 individuals, consisted of 103 species from 41 families and 14 orders. Most of them were from Family Ambassidae,Leiognathidae, Scianidae, Gobiidae, and Ariidae.

scholarly journals Description of Mariniphaga anaerophila gen. nov., sp. nov., a facultatively aerobic marine bacterium isolated from tidal flat sediment, reclassification of the Draconibacteriaceae as a later heterotypic synonym of the Prolixibacteraceae and description of the family Marinifilaceae fam. nov.

2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3660-3667 ◽  
Author(s):  
Takao Iino ◽  
Koji Mori ◽  
Takashi Itoh ◽  
Takuji Kudo ◽  
Ken-ichiro Suzuki ◽  
...  
Keyword(s):  
Tidal Flat ◽  
Sequence Similarity ◽  
Soluble Starch ◽  
Tokyo Bay ◽  
Phylogenetic Position ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Tidal Flat Sediment ◽  
The Family

A mesophilic, chemoheterotrophic bacterium, strain Fu11-5T, was isolated from tidal-flat sediment from Tokyo Bay, Chiba, Japan. Cells of strain Fu11-5T were facultatively aerobic, Gram-negative, non-sporulating, non-motile and rod-shaped (1.9–6.9 µm long). Strain Fu11-5T grew optimally at 35–37 °C and pH 6.5–7.0 and with 1–2 % (w/v) NaCl. Oxygen and l-cysteine were used as an alternative electron acceptor and donor, respectively. Strain Fu11-5T also grew fermentatively on some pentoses, hexoses and disaccharides and soluble starch. Succinic acid was the major end product from d-glucose. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that strain Fu11-5T was affiliated with the order Bacteroidales , and its nearest neighbours were members of the genera Meniscus , Prolixibacter , Sunxiuqinia , Mangrovibacterium and Draconibacterium, with 87–91 % sequence similarity. Cell morphology, optimum growth temperature and utilization of sugars of strain Fu11-5T distinguished the strain from phylogenetically related bacteria. On the basis of its phenotypic features and phylogenetic position, a novel genus and species are proposed to accommodate strain Fu11-5T, with the name Mariniphaga anaerophila gen. nov., sp. nov. The type strain of Mariniphaga anaerophila is strain Fu11-5T ( = JCM 18693T = NBRC 109408T = DSM 26910T). We also propose to combine the family Draconibacteriaceae into the family Prolixibacteraceae as a later heterotypic synonym and to place the distinct sublineage of the genus Marinifilum in the family Marinifilaceae fam. nov.

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