Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Settlement of juvenile glass sponges and other invertebrate cryptofauna on the Hecate Strait glass sponge reefs
Guillas, K.C.; Kahn, A.S.; Grant, N.; Archer, S.K.; Dunham, A.; Leys, S.P. (2019). Settlement of juvenile glass sponges and other invertebrate cryptofauna on the Hecate Strait glass sponge reefs. Invertebr. Biol. 138(4): e12266. https://dx.doi.org/10.1111/ivb.12266
In: Invertebrate biology. Blackwell Publishing: Lawrence, Kan.. ISSN 1077-8306; e-ISSN 1744-7410
|  |
| Auteurs | | Top |
- Guillas, K.C.
- Kahn, A.S.
- Grant, N.
|
- Archer, S.K.
- Dunham, A.
- Leys, S.P.
|
|
| Abstract |
Glass sponge reefs are endemic to the continental shelf waters of British Columbia and Alaska, where they form complex three‐dimensional habitats used by a variety of commercially important fish and invertebrate species. The Hecate Strait and Queen Charlotte Sound Glass Sponge Reefs Marine Protected Area (HSQCS‐MPA) was designated in February 2017 to protect 2,410 km2 of reef habitat. Efforts to establish baseline information regarding reef‐associated taxa in the new MPA have documented the diversity of megafauna in detail, but little is understood of the cryptic epifauna inhabiting hidden crevices within the reefs, and even less is understood of larval recruitment, the key reproductive process maintaining long‐term reef health and stability. We collected specimens of a reef‐building glass sponge, Farrea occa, from the HSQCS‐MPA and described the diversity of their epifauna. Five hundred and two organisms from six phyla were documented, including 84 sponges from three classes. We found several glass sponges: known juvenile reef builders (two Aphrocallistes vastus and two Heterochone calyx); the lyssacine sponge Leucopsacus scoliodocus, previously known in Canadian waters only from Jervis Inlet; and an unidentified dictyonine sponge previously unknown to waters of British Columbia. Also present were the carnivorous sponge Lycopodina occidentalis, 11 individuals of Desmacella austini, evidence for a new species in the subgenus Haliclona (Flagellia), and a clathrinid calcareous sponge. The growth stages we observed suggest multiple settlement events by glass sponge larvae between February and early March. Of the 502 invertebrates, 460 were attached to dead sponge skeleton despite live tissue being much more available as substrate. This study highlights trends in recruitment at sponge reefs, explores factors that may affect larval settlement, describes new sponge associations, and provides the first description of the range of macrofauna found on glass sponges, acting as a baseline for continued monitoring of the MPA. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
