Potential vs. realized larval dispersal: fish predation on larvae of the ascidian Lissoclinum patella (Gottschaldt)

1987 ◽  
Vol 110 (3) ◽  
pp. 245-256 ◽  
Author(s):  
Richard Randolph Olson ◽  
Ross McPherson
2016 ◽  
Vol 560 ◽  
pp. 105-120 ◽  
Author(s):  
J Fujita ◽  
K Zenimoto ◽  
A Iguchi ◽  
Y Kai ◽  
M Ueno ◽  
...  

2013 ◽  
Vol 1 (1) ◽  
pp. 3
Author(s):  
Hanny Tioho

In order to elucidate the patterns of dispersal in scleractinian coral Pocillopora damicornis near the northern limit of its latitudinal range, a total of 50 colonies (15-25 cm in diameter) of this coral were collected from Ooshima Island, Japan, and transplanted within one hour to the area of Satsuki, where they were not present before. Three concentric areas were established such as; the parental area (PA), intermediate area (IA) and outer area (OA). A total of 831 new corals were found in 1997 while 54.3% of these occurred in PA, 30.5% in IA and 15.1% in OA. In 1998, 52.3% of recruits settled in PA, 30.5% in IA and 17.2% in OA. A significant difference in the density of recruits was found among three areas, but recruit density was not significantly different between years and there was no interaction between area and year. There was no significant difference in the number of recruits among different directions, indicating no tendency for larvae to be concentrated in one particular direction. The present study suggests that the planulae of P. damicornis have limited dispersal distances at high-latitudes© Untuk menjelaskan pola penyebaran karang scleractinia Pocillopora damicornis yang berada di batas Utara penyebarannya, total 50 koloni (15-25 cm) dari karang ini dikumpulkan dari Pulau Ooshima, Jepang, dan di transplantasikan dalam waktu satu jam ke daerah Satsuki yang tidak ditemukan jenis ini. Tiga daerah ditetapkan yaitu, Daerah Induk (PA), Daerah Tengah (IA), dan Daerah Luar (OA). Sebanyak 831 karang baru ditemukan pada tahun 1997, sementara 54,3% ditemukan di PA, 30,5% di IA dan 15,1% di OA. Pada tahun 1998, 52,3% ditemukan di PA, 30,5% di IA, dan 17,2% di OA. Ditemukan perbedaan yang signifikan untuk kepadatan antara ketiga daerah tersebut, tetapi tidak ada perbedaan yang signifikan antar tahun dan tidak ada interaksi antara daerah dan tahun. Tidak ada perbedaan yang signifikan dalam jumlah pada arah yang berbeda sehingga hal ini menunjukkan tidak ada kecenderungan bagi larva untuk terkonsentrasi pada satu arah tertentu. Penelitian ini menunjukkan bahwa planula P.


2021 ◽  
Author(s):  
Pablo Saenz Agudelo ◽  
Hugo Harrison

2002 ◽  
Vol 269 (1505) ◽  
pp. 2079-2086 ◽  
Author(s):  
Maurice K. James ◽  
Paul R. Armsworth ◽  
Luciano B. Mason ◽  
Lance Bode
Keyword(s):  

2020 ◽  
Vol 54 (1) ◽  
pp. 309-322 ◽  
Author(s):  
Scott R. Goeppner ◽  
Maggie E. Roberts ◽  
Lynne E. Beaty ◽  
Barney Luttbeg

1956 ◽  
Vol 1 (3) ◽  
pp. 162-175 ◽  
Author(s):  
DON W. HAYNE ◽  
ROBERT C. BALL

Coral Reefs ◽  
1990 ◽  
Vol 9 (3) ◽  
pp. 125-134 ◽  
Author(s):  
I. J. Dight ◽  
M. K. James ◽  
L. Bode

Evolution ◽  
1993 ◽  
Vol 47 (1) ◽  
pp. 316-320 ◽  
Author(s):  
Mark D. Bertness ◽  
Steven D. Gaines

1989 ◽  
Vol 67 (8) ◽  
pp. 2078-2080 ◽  
Author(s):  
Robert Poulin ◽  
Gerard J. FitzGerald

Females of the ectoparasitic crustacean Argulus canadensis must leave their fish hosts at least temporarily to deposit their eggs on the substrate. To test the hypothesis that this difference in reproductive behaviour between the two sexes could result in male-biased sex ratios on their stickleback hosts, we sampled sticklebacks in tide pools of a Quebec salt marsh from early July to early September 1986. During this period, fish harboured significantly more male than female A. canadensis. Laboratory experiments were done to test two alternative hypotheses offered to explain this biased sex ratio. The first hypothesis was that male A. canadensis were more successful than females in attacking their stickleback hosts; however, we found no differences in attack success on their hosts between the two parasite sexes. The second hypothesis was that sticklebacks ate more female than male A. canadensis. Although males were less vulnerable to fish predation than females, the difference was not significant. We conclude that sexual differences in reproductive behaviour, i.e., egg deposition behaviour of females, can account for the male-biased sex ratio of A. canadensis on sticklebacks.


2005 ◽  
Vol 102 (20) ◽  
pp. 7315-7320 ◽  
Author(s):  
E. W. Schmidt ◽  
J. T. Nelson ◽  
D. A. Rasko ◽  
S. Sudek ◽  
J. A. Eisen ◽  
...  
Keyword(s):  

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