Sponges of the New Caledonian lagoon - IRD

More documents

Recommendations

Info

202 Sponges of the New Caledonian lagoon Repent Growth predominantly horizontal; the basal attachment area is large in proportion to body bulk, though it may not be continuous. Reticulate Condition of skeletal architecture whereby spongin fibres and/or spicule columns branch and rejoin (anastomose) with each other to form two- or three-dimensional meshes; any interlocking anastomosing skeleton, either fibre or spicule. Rhabd Oxeote or strongylote microsclere; also a term used to describe a curved end of a spicule. Sclerocyte Anucleolate motile secretory cell which produces spicules. Sclerodermites Aggregate of crystals forming a microstructural unit of the calcareous skeleton. secondary fibre A fibre disposed without marked orientation to the surface; connecting primary fibres. Secondary fibre tract Minor fibre or spicule tract interconnecting the ascending primary fibres or tracts (cr. primary). Sedentary animals Animals in which the adults do not move by usual forms of locomotion (cilia, pseudopods, legs, etc.), but usually live attached to the substrate; adult sponges are typically sedentary, although their larvae swim through the water column using cilia and/or f1agellae. Sigma A microsclere in which a single axis is curved or contorted to a 'c' or's' shape. Sigmaspirae Contorted sigmas of one revolution in a spiral manner. Siliceous Composed of silica, a glass-like material. Spermatocyte Male reproductive unicell. Spheraster An aster with a large centrum and many short conical rays. Spherulitic Refers to aragonite skeleton in Asrrosclero; globular centric or excentric arrangement of crystal fibres radiating from a common centre. Spherulous cells Cell filled with large round spherules which occupy most of the cell volume; secretory cells located in the mesohyl.
spicule Skeletal element composed of silica or calcium carbonate; discrete element of the skeleton, produced by sclerocytes; divided into two categories based on size (megasclere and microsclere). Spinulate Spined. Spongin Fibrous skeletal material; collagenous material deposited in the form of fibres or plaques which are often of large size forming the organic intercellular matrix (collagenous filaments or spongin type A), and organic skeleton (spongin fibres or spongin type B). spongin fibre Macroscopic collagenous structures made up of many small microfibrils bound together, producing discrete stands or plaques; fibres may be homogeneous (e.g. Spongiidae), have a light central pith (e.g. Thorectidae) or a granular medullary portion (e.g. verongida); fibres frequently contain the mineralized secreted products of the sponge (spicules) and/or foreign particles (e.g. arenaceous species); also known as the organic skeleton. spongocytes Motile nucleolate cells that secrete spongin fibres. Spumous cells Secretory cells in the mesohyl; only known from the Dendroceratida. Stellate Star-like. Sterraster An aster with a large spherical or ovate centrum and numbers of fine short rays. Stolon Root-like processes at the base of the sponge, or filament-like attachments to the body. Strongyle A diactinal spicule in which both ends are rounded. Style A monactinal megasclere in which one end is evenly rounded and the other end pointed. SubdermaVsubectosomal Below the dermis. Subectosomal spicules Condition where megascleres are localized to a region below the ectosomal skeleton but not associated with fibres or primary skeletal tracts (cf. ectosomal, choanosomal spicules); intermediate between surface (ectosomal) and structural (choanosomal) skeletons. 203 Glossary
Page 5 and 6:
Claude Levi Ed itor Pierre Laboute,
Page 8 and 9:
8 Cel ouurage est le resu/lat d'une
Page 11:
This work is the result of a long s
Page 15 and 16:
Author profiles Chris Battershill i
Page 17:
Clive WiIkinson is Principal Resear
Page 20 and 21:
18 Sponges of the New Caledonian La
Page 22:
Page 25 and 26:
Sponges are fascinating. Each spong
Page 29 and 30:
a What IS sponge .- Cll0anocytes in
Page 31 and 32:
Sponge structure s ponge adults are
Page 33 and 34:
., Matrix cyanobacleria (photo J. V
Page 35 and 36:
whiCh are always present irrespecti
Page 37 and 38:
How con you s identi fy sponge? o p
Page 39 and 40:
Soft parts of the sponge (photo J.
Page 42:
40 Sponges of the New Coledonian La
Page 45 and 46:
Page 48:
Page 51 and 52:
Anchorate isochela (pl,oto P.R. Ber
Page 54 and 55:
Page 57 and 58:
The role of sponges In carol reefs
Page 59 and 60:
the production of much coral rubble
Page 61 and 62:
food material of plant and animal o
Page 63 and 64:
The fascinating world of sponge che
Page 65 and 66:
It was originally assumed that spec
Page 67 and 68:
Sponge diversity, distribution and
Page 69 and 70:
predators. Nor do many have adequat
Page 71 and 72:
where its life forms were capable o
Page 73:
Actual proportions of endemic speci
Page 86:
Order Astrophorida 84 I SteJlerro (
Page 106:
104 Sponges of the New Caledonian L
Page 116:
114 Sponges of the New Caledonian L
Page 185: Further reading Brien (P.), Levi (C
Page 188 and 189: 186 Sponges of the New Caledonian L
Page 191 and 192: Glossary Acantho- Addition of spine
Page 193 and 194: incorrectly interchanged with the t
Page 195 and 196: Clathrate Interwoven tubular constr
Page 197: Ectosome Peripheral region of the s
Page 200 and 201: 198 Sponges of the New Coledonion L
Page 207 and 208: List of general illustrations provi
Page 209 and 210: 115 Mycale (Zygomycale) parishi (BO
Page 212 and 213: 212 Sponges of the New Caledonion L
show all

Sponges of the New Caledonian lagoon - IRD

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?