当前位置: X-MOL 学术J. Mar. Biol. Assoc. Uk › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Calcareous meiofauna associated with the calcareous alga Corallina officinalis on bedrock and boulder-field shores of Ceredigion, Wales, UK
Journal of the Marine Biological Association of the United Kingdom ( IF 1.2 ) Pub Date : 2020-12-23 , DOI: 10.1017/s0025315420001174
Brent Wilson , Lee-Ann C. Hayek

The intertidal coastline of Ceredigion, Wales, comprises a patchwork of unstable sand and cobble beaches, and stable bedrock areas and boulder-fields. The last two shoreline types support rock-pools with growths of the red alga Corallina officinalis, the thalli of which are a popular substrate for calcareous epiphytes. Replicate samples of C. officinalis (four per site) were taken from (a) three bedrock sites (Ceinewydd, Aberystwyth Victoria Rocks and Castle Rocks) and (b) three boulder-fields (Llanon, Aberaeron lower shore (Aberaeron LS), Llanina) on the lower shore. The middle shore boulder field at Aberaeron (Aberaeron MS) was also sampled. These replicates were examined for calcareous meiofauna (63–2000 μm) not previously examined as a community: spirorbids, foraminifera, gastropods, bryozoans, ostracods and ophiuroids. These were assigned to sessile and vagile modes of life. The sessile association overwhelmingly dominated bedrock coastlines and the Aberaeron MS, while the vagile association was at its most abundant on the Corallina from lower shore, stable boulder-fields. Gastropods were almost entirely limited to Corallina on boulder-fields. We hypothesize that the boulders induce low-energy turbulence among breaking waves, allowing the less firmly attached vagile meiofauna to dominate on C. officinalis in rock-pools in lower shore boulder-fields. The small attachment area of sessile organisms allows them to settle bedrock sites in greater densities than do vagile organisms at boulder-field sites, which are presumed to require larger foraging areas.

中文翻译:

与英国威尔士 Ceredigion 的基岩和巨石场海岸上的钙质藻类 Corallina officinalis 相关的钙质小型动物

威尔士 Ceredigion 的潮间带海岸线由不稳定的沙滩和鹅卵石海滩、稳定的基岩区和巨石场拼凑而成。最后两种海岸线类型支撑着红藻生长的岩池珊瑚藻,其菌体是钙质附生植物的流行基质。复制样本C. officinalis(每个站点四个)取自(a)三个基岩站点(Ceinewydd、Aberystwyth Victoria Rocks 和 Castle Rocks)和(b)三个巨石场(Llanon、Aberaeron 下岸(Aberaeron LS)、Llanina)。还对 Aberaeron (Aberaeron MS) 的中岸巨石场进行了采样。检查这些复制品的钙质小型动物(63-2000 μm),以前没有作为一个群落进行检查:螺旋虫、有孔虫、腹足动物、苔藓虫、介形虫和蛇类。这些被分配到固着和不稳定的生活方式。固着协会在基岩海岸线和 Aberaeron MS 中占压倒性优势,而不稳定的协会在大陆上最为丰富。科拉利纳从下岸,稳定的巨石场。腹足类动物几乎完全限于科拉利纳在巨石场上。我们假设巨石会在碎波中引起低能湍流,从而使附着较不牢固的易变小型动物群占据主导地位。C. officinalis在下海岸巨石场的岩石池中。固着生物的小附着区域使它们能够以比在巨石场地点的浮动生物更大的密度定居基岩地点,这被认为需要更大的觅食区域。
更新日期:2020-12-23
down
wechat
bug