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Social Structure, Nest Guarding and Interspecific Relationships of the Cichild Fish (Julidochromis marlieri) in Lake Tanganyika
No full textハゼ科ベニハゼ属魚類における配偶システム及び雌雄性の進化的基盤に関する研究
Full text link東京海洋大学博士(海洋科学)東京海洋大学博士学位論文 平成29年度(2017) 応用環境システム学 課程博士甲第484号指導教員: 須之部 友基thesi
Social Structure, Nest Guarding and Interspecific Relationships of the Cichild Fish (Julidochromis marlieri) in Lake Tanganyika
Full text linkSocial structure, nest guarding and interspecific relationships of the Tanganyikan cichild Julidochromis marlieri were investigated at Gitaza, Republic of Burundi. Six social groups were found and classified into 3 types by the composition of the members: branching group with the largest adult (first adult [FA]), 2 smaller adults (second adult [SA] and third adult [TA]), and juveniles; linear group-A with one member each of FA, SA, and TA and juveniles and linear group-B with one FA, one SA and juveniles. The time the TA, SA, and FA each stayed at the nest declined with size. When potential preditors on juveniles (Lepidiolamprologus elongatus and L.profundicola) approached, J. marlieri vigorously intercepted. J.marlieri nests were located near the home ranges of Neolamprologus savoryi, which also attacked such predators. N. savoryi also attacked J.marlieri, but the nest proximity may be beneficial for the latter, because N.savoryi excluded the approaching predators near the nest of J.marlieri
館山湾におけるトラギス科2種の繁殖生態と性転換
No full text東京海洋大学修士学位論文 2018年度(2019年3月) 海洋資源環境学 修士 第3061号指導教員: 須之部友基全文公表年月日: 2023-04-0
ハゼ科ベニハゼ属魚類における配偶システム及び雌雄性の進化的基盤に関する研究
No full text東京海洋大学博士学位論文 平成29年度(2017) 応用環境システム学 課程博士甲第484号指導教員: 須之部 友
館山湾に生息するベラ科オハグロベラ Pteragogus aurigarius における繁殖行動の多様性と性転換に関する研究
Full text link東京海洋大学博士(海洋科学)東京海洋大学博士学位論文 平成28年度(2016) 応用環境システム学 課程博士 甲第422号指導教員: 須之部友基全文公表年月日: 2017-06-26doctoral thesi
館山湾に生息するベラ科オハグロベラ Pteragogus aurigarius における繁殖行動の多様性と性転換に関する研究
No full text東京海洋大学博士学位論文 平成28年度(2016) 応用環境システム学 課程博士 甲第422号指導教員: 須之部友基全文公表年月日: 2017-06-2
館山湾に生息するべラ科オハグロベラPteragogus aurigariusの社会行動と性転換
No full text東京海洋大学修士学位論文 平成22年度(2010) 海洋環境保全学 第1174号指導教員: 須之部友基全文公表年月日: 2013-09-0
Reproductive Ecology of the Gobiid Fish Eviota abax at Nobeoka, Japan, with Notes on Geographic Variation
Full text linkThe reproductive behavior and spawning cycle of the gobiid fish
Eviota abax were observed in a rocky tide pool at Nobeoka, Miyazaki, Japan.
Both sexes maintained nonterritorial, overlapping home ranges. The spawnings
took place at the low tide of neap to spring tidal periods. Matings varied in each
spawning cycle, but males did not simultaneously mate with multiple females.
Males were larger than females in the spawning pairs. After spawning, only the
male guarded the egg mass. Although separated by 900 km, the basic patterns of
reproductive ecology were similar at Nobeoka to those reported earlier for this
specie,s from Kominato, Chiba, Japan; nest entrances were smaller at Nobeoka
than at Kominato, and larger males kept their home ranges longer at Nobeoka
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