Information

Ecological parameter:  respiration according to Tachet

Parameter group: life parameters

Explanation:
Gas exchanges in invertebrates may be performed in the aquatic environment via branchial respiration [i.e. (i) "blood gills" in many molluscs, crustaceans and rare worms (e.g. Branchiura sowerbyi) or insect larvae (e.g. Chironomus) or (ii) "tracheal gills" in insect larvae, including mayflies, damselflies and some caddisflies; category "gil"] or cutaneous respiration (i.e. tegument, in Porifera, Cnidaria, Turbellaria, but also small larval instars of insects; category "teg"). Gas exchanges may be also aerial, via spiracles ("spi") that may be fed from bubbles and replaced periodically by visits to the water surface or to photosynthesizing plants. Air bubbles can be stored in various ways. A few species of Heteroptera (e.g. Naucoridae) and beetles (e.g. Elmidae) have developed a large body area covered with a pile of very fine short hydrophobe hairs supporting a thin dry gaseous layer acting as a physical gill (= plastron; "pls"), from which specialized spiracles can receive air. Five categories have been defined.

Additional information:
Note that Several classifications of the Tachet database are on higher taxonomic level than on species level. To display them in the list please enable "include higher taxonomic units" in the "advanced search".

Abbreviations:
AbbreviationExplanation
tegtegument
gilgill
plsplastron
spispiracle (aerial)
veshydrostatic vesicle (aerial)
Assigned taxa for each higher systematic unit
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Porifera3 / 9 - 33.3%
Coelenterata2 / 13 - 15.3%
Turbellaria4 / 60 - 6.6%
Kamptozoa1 / 1 - 100%
Nemertini1 / 1 - 100%
Gastropoda15 / 230 - 6.5%
Bivalvia3 / 66 - 4.5%
Polychaeta1 / 13 - 7.6%
Oligochaeta16 / 234 - 6.8%
Hirudinea10 / 66 - 15.1%
Crustacea11 / 255 - 4.3%
Ephemeroptera16 / 344 - 4.6%
Odonata17 / 158 - 10.7%
Plecoptera9 / 571 - 1.5%
Heteroptera10 / 124 - 8%
Planipennia1 / 12 - 8.3%
Coleoptera53 / 3342 - 1.5%
Trichoptera38 / 1428 - 2.6%
Lepidoptera4 / 18 - 22.2%
Diptera (excl. Chironomidae)2 / 2342 - 0%
Bryozoa6 / 16 - 37.5%