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Samenvatting subphylum Crustacea

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Hoofdstuk over de Crustacea samengevat door middel van de de cursus en de slides.

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Subphylum Crustacea
Algemeenheden
o Meeste marien, soms ook zoet of brak water of vocthige landomgeving
 Pelalgisch
 Sessiel
 Soms parasitair
 Gravers
o Vormrijke subphylum
o Kenmerkend stadium: naupliuslarve

Bouwplan
Algemeen
o Acron en telson
o 3 soort metameren:
 Cephalomeren = kopsegmenten
 Pereiomeren = thoraxsegment
 Pleomeren = adomensegmenten
o Cephalon komt zelden vaak  cephalothorax: versmolten cephalomeren en
pereiomeren
o Pereion gaat over in pleon en eindigt op telson
o Caparax: kopschild over de pereionsegmenten, begint acther cephalon,
beschermende functie
o Extremiteiten: splijtpoottype
o Mandibula met kauwplaten
Vb Nephrops norvegicus
o Cephalorthorax:
 Vergroeiing van 6 kopsegmenten en 6 thoraxsegmenten
 Carapax: dorsaal tergier en lateraal branchiostegiet, rostrum
 6 paar kopaanhangsels:
 Waarneming van milieu: gesteelde ogen, antennulae, antennae
 Voedselopname: mandibula, maxilulla, maxilla
 8 paar thoracale aanhangsels:
 Monddelen: maxillipede 1-3
 Grijpscharen: chelipede
 Looppoot: pereiopood 1- 4, (Vr genitaal porus: pereiopood 2 en m.
genitaal prous: pereiopood 4
o Pleon:
 6 segmenten + telson
 Segment: tergiet, pleuriet, sterniet
 Extremiteiten:
 Pleopoda 1-5 = zwempootjes (m: 1 + 2: copulatieorgaan)
 Uropoda: vormt met telson het zwemorgaan (waaiervormige staart)
 Telson

Ademhaling
o Kieuwen onder branchiostegiet
o # variëert

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Uploaded on
December 30, 2021
Number of pages
3
Written in
2021/2022
Type
Summary
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