Living on the edge: juvenile recruitment and growth of the gooseneck barnacle POLLICIPES POLYMERUS
| Autor: | Helms, Alicia, 1977 |
|---|---|
| Rok vydání: | 2004 |
| Předmět: | |
| Druh dokumentu: | Diplomová práce |
| Popis: | A print copy of this title is available from University of Oregon's Oregon Institute of Marine Biology library, under the call number: OIMB QL444.C58 H45 2004 106 p. OIMB MS Thesis Gooseneck barnacles, Pollicipes polymerus, form clusters in the mid-upper rocky intertidal on exposed coasts of the northeast Pacific. Clusters compete for space, losing only to mussels, Mytilus californianus, and larvae settle gregariously on adults. By tagging juveniles with calcein, I studied recruitment and growth of juveniles in large and small clusters and on solitary adults. Recruitment was patchy; many adults contained no recruits, and three adults in each cluster contained 47 % of recruits. More juveniles per adult were found on edges than centers of clusters, and juveniles on edges grew faster than those on the inside of clusters. There was no effect of cluster size on recruitment or growth. Solitary adults had more recruits than clusters, and juveniles on solitaries grew faster than those from clusters. These results imply solitaries should quickly grow into clusters, and clusters accrete from their edges. These patterns may help Pollicipes compete with mussels. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|