scholarly journals Rock face incline and height above sea bed of holes used as shelters by pueruli and juvenile Japanese spiny lobsters Panulirus japonicus

1996 ◽  
Vol 25 (0) ◽  
pp. 121-128 ◽  
Author(s):  
Christopher P. Norman ◽  
Yoshitaka Morikawa
2019 ◽  
Vol 85 (1) ◽  
pp. 67-69
Author(s):  
SHOTARO SEKO ◽  
KOTARO ICHIKAWA ◽  
YASUSHI TSUCHIHASHI ◽  
FUMIHIKO ABE ◽  
HIROMICHI MITAMURA ◽  
...  

1997 ◽  
Vol 48 (8) ◽  
pp. 869 ◽  
Author(s):  
Megumi Minagawa

Reproductive biology of the spiny lobster Panulirus japonicus was histologically examined by monthly sampling between March 1993 and September 1994 at Oshima Island, near Tokyo. P. japonicus had a well defined reproductive cycle. Yolk accumulation became manifest in February and ovaries grew rapidly in March. Females spawned from late April to mid August and were ovigerous to mid September. Of large females with a carapace length (CL) of ≥47 mm, 93% were estimated to spawn twice during the spawning season. Size at which 50% of females reached sexual maturity was estimated to be 41.8 mm CL, as calculated from a logistic model. Some individuals considered to be primiparous showed delayed vitellogenesis and were estimated to spawn only once during the season.


Author(s):  
Joko Dwi Sugihartono

<p>in Indonesia is a region bordering the sea region of Indonesia determined by the law which included sea bed, land under it and water above it with the limit of 200miles. This is measured from Indonesian line of the sea.This whole time a lot of people see the shoreline as the sea border. This perspective makes us alienated and lack of knowledge to take advantage of the sea. This understanding also conjures the idea sea toll, to confirm that Indonesia is maritime country. Sea toll means building sea transportation with ships or sea logistic system which will serve nonstop back and forth from Sabang to Merauke. One of the factors to support this is by building ports (deep sea port) order to give faraway to big ships. A course that spreading as far as 5,000 kilometers or an eighth circumference of the earth One of the purposes of sea toll is to move the economy as efficient and evenly as possible. With the hope that, there will be ships back and forth on Indonesian water, so logistics cost will be cheap. That is why; sea toll is one of President Joko Widodo’s priorities which are also meant to develop Indonesia as maritime country and develop Indonesia as national unity. In addition sea toll can also be affirmation, that Indonesia is in every regions even if it is through ships.</p><p><strong>Keywords : Exclusive Economic Zone (ZEE) , Sea Toll , The Shaft Maritime, A Seaport</strong></p>


2018 ◽  
Vol 11 (1) ◽  
pp. 36-42
Author(s):  
Hyeong-Min KIM ◽  
Min-Ho YOU ◽  
Ji-Na GANG ◽  
Dae-Jin KIM ◽  
Hyeong-Ho SHIN
Keyword(s):  
Sea Bed ◽  

2019 ◽  
Vol 12 (1) ◽  
pp. 19-26
Author(s):  
Ju-Hun LEE ◽  
Chae-Gyeong JUNG ◽  
Hyeong-Ho SHIN ◽  
Dae-Jin KIM
Keyword(s):  

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