00000cam 2200000zi 4500 9.959397 CaOODSP 20260130151708 m o d f cr |n||||||||| 260129e198208##nscdb ob f|0| 0 eng d CaOODSP eng rda CaOODSP n-cn-ns Fs97-4/1662E-PDF Fs97-4/1662E Miller, R. J., (Ronald John), 1942- author. Stability of a sea urchin front in southwest Nova Scotia / by R.J. Miller. Halifax, Nova Scotia : Fisheries Research Branch, Department of Fisheries and Oceans, August 1982. ©1982 1 online resource (v, 11 pages) : charts, map. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; 1662 Digitized edition from print [produced by Department of Fisheries and Oceans]. Includes bibliographical references (page 11). "Sea urchin (Strongylocentrotus droebachiensis) abundance and macrophyte cover was surveyed in 1979, nearshore west of Cape Sable Island. Parts of this area most likely to experience change in urchin abundance and macrophyte cover were resurveyed in 1981, and results of the two surveys are compared in this report. There were no marked changes in sea urchin abundance or biomass, there was little recruitment of urchins smaller than 3 cm diameter, and there was no general migration of high urchin densities toward shore. Area of kelp cover did not change, although on most transects the transition from good to poor cover of macrophyte understory was closer to shore in 1981. In summary, for most of the parameters measured, any change from 1979 to 1981 did not exceed the precision of measurement"--Abstract, page iv. Sea urchin populations Nova Scotia. Oursins Populations Nouvelle-Écosse. Canada. Department of Fisheries and Oceans, issuing body. Canadian manuscript report of fisheries and aquatic sciences ; 1662. (CaOODSP)9.505211 PDF 1.19 MB https://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-1662-eng.pdf