Topic
Strongylocentrotus
About: Strongylocentrotus is a research topic. Over the lifetime, 260 publications have been published within this topic receiving 10976 citations.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: Observations of the rate and pattern of algal succession for periods of up to three years showed that following an initial establishment of new species, brown algae began to dominate and the rate of domination is related to the area’s tidal height, with succession most rapid in the lower intertidal areas or subtidally.
Abstract: A series of shallow intertidal pools at Mukkaw Bay, Washington, ranging in height from −0.3 to +0.6 m had the urchin Strongylocentrotus purpuratus removed from them. Subtidal rocks at Friday Harbor, −7.3 to −8.2 m, were either caged or had Strongylocentrotus fransiscanus removed at monthly intervals. Observations of the rate and pattern of algal succession for periods of up to three years showed that following an initial establishment of new species, brown algae began to dominate. The rate of domination is related to the area’s tidal height, with succession most rapid in the lower intertidal areas or subtidally. After a variable period, the majority of the algal biomass was vested in a single perennial brown algal species, Hedophyllum sessile in the inter tidal and Laminaria complanata or Laminaria groenlandica subtidally. These plants existed neither in the control areas throughout the study, nor in the experimental pools and rocks before urchin removal. Intermittent urchin browsing could make a major contribution to the variety of algae coexisting within limited areas on these rocky shores.
582 citations
TL;DR: Preference experiments showed that substance(s) readily sloughed from the fronds of Nereocystis attract urchin whereas substances from A. fimbriatum repel or are not detected by urchins.
Abstract: Strongylocentrotus drobachiensis and S. franciscanus exhibited strong algal preferences in laboratory studies. A generalized ranking of algae from most to least preferred for both sea urchins includes: Nereocystis luetkeana, Costaria costata, Laminaria saccharina, L. groenlandica, Monostroma fuscum, Opuntiella californica, Agarum fimbriatum and A. cribrosum. Similar but weaker preferences were exhibited by S. purpuratus. Preference experiments showed that substance(s) readily sloughed from the fronds of Nereocystis attract urchins whereas substances from A. fimbriatum repel or are not detected by urchins. In the field urchins in contact with or on the fronds of Agarum spp. revealed a low proportion of feeding individuals except during winter. Food preferences were inversely correlated with the caloric content of algae. Although preferences generally were weakly correlated with caloric intake, this relationship is an artifact of the high feeding rates on preferred algae. Absorption efficiencies for the thr...
486 citations
Journal Article•
TL;DR: The edible sea-urchin roe cuisine (J.M. Lawrence).
Abstract: Preface. The edible sea-urchins (J.M. Lawrence). Reproduction of sea urchins (C.W. Walker, T. Unuma, N.A. McGinn, L.M. Harrington, M.P. Lesser). Energy metabolism and gonad development (A.G. Marsh, S.A. Watts). Reproductive endocrinology of sea urchins (K.M. Wasson, S.A. Watts). Echinoid larval ecology (L.R. McEdward, B.G. Miner). Growth and survival of post-settlement sea urchins (T.A. Ebert). Digestion in sea urchins (J.M. Lawrence, T.S. Klinger). Carotenoids in sea urchins (T. Matsuno, M. Tsushima). Disease in edible sea urchins (K. Tajima, J.M. Lawrence). The ecology of Centrostephanus rodgersii (N. Andrew, M. Byrne). The ecology of Loxechinus albus (J. Vasquez). The ecology of Paracentrotus lividus (C.-F. Boudouresque, M. Verlaque). The ecology of Psammechinus miliaris (M. Kelly, E. Cook). The ecology of Echinometra (T.R. McClanahan, N.A. Muthiga). The ecology of Evechinus chloroticus (M.F. Barker). The ecology of Heliocidaris erythrogramma (J. Keesing). The ecology of Strongylocentrotus droebachiensis (R.E. Scheibling, B.G. Hatcher). The ecology of Strongylocentrotus franciscanus and Strongylocentrotus purpuratus (M.J. Tegner). The ecology of Strongylocentrotus intermedius (Y. Agatsuma). The ecology of Strongylocentrotus nudus (Y. Agatsuma). The ecology of Lytechinus variegatus (S.A. Watts, J.B. McClintock, J.M. Lawrence). The ecology of Tripneustes (J.M. Lawrence, Y. Agatsuma). Sea-urchin roe cuisine (J.M. Lawrence).
439 citations
TL;DR: An alternative hypothesis is offered: larger eggs present a larger target for sperm and thus are fertilized at a higher rate and, if one assumes an equal allocation of resources, produce at least as many zygotes as species with smaller, more numerous eggs.
Abstract: Interspecific variation in egg size of marine invertebrates has been previously explained by a trade-off between gamete quality and quantity: the production of many small eggs with high mortality or fewer large eggs that develop quickly and experience reduced planktonic mortality. This theory assumes 100% fertilization of eggs and predicts that either strategy results in a similar number of settling offspring per unit of energy invested in reproduction. Empirical support for the theory has been equivocal. Here I offer an alternative hypothesis: larger eggs present a larger target for sperm and thus are fertilized at a higher rate. This theory suggests a trade-off between the production of many small eggs with a low probability of fertilization or fewer large eggs with a higher probability of fertilization. This hypothesis is tested with three congeneric sea urchins, Strongylocentrotus purpuratus, Strongylocentrotus franciscanus, and Strongylocentrotus droebachiensis, with a fivefold difference in egg volu...
301 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2020 | 6 |
| 2019 | 3 |
| 2018 | 1 |
| 2017 | 3 |
| 2016 | 3 |
| 2015 | 6 |