86 research outputs found
Aggregation of the reef-building tube worm Filogranella elatensis at Sempora, eastern Sabah, Malaysia
Aggregation of the reef-building tube worm Filogranella elatensis at Sempora, eastern Sabah, Malaysia
Serpulidae (Annelida: Polychaeta) from the Suez Canal: from a Lessepsian migration perspective (a monograph).
Serpulidae (Annelida: Polychaeta) from the Suez Canal: from a Lessepsian migration perspective (a monograph).
Data on Serpulidae collected in the Suez Canal were assembled and analyzed. Five serpulid taxa are reported from the canal for the first time bringing the number of serpulids to at least 16. The Systematic Section compiles revised literature records, confirmed synonymies of the taxa, redescriptions where necessary, photographic studies of taxa and remarks on the populations studied. The possible Indo-West-Pacific or Mediterranean origins of the taxa in the Suez Canal are considered and their chronological records and distributions tracked within the Red Sea, the Gulfs of Aqaba and Suez, the Suez Canal and the Levant Basin based on the compiled literature and our extensive databases. Two Lessepsian migrants, Hydroides heterocerus and H. homoceros, show evidence of morphological variability along their migration route; the last also provides an example of a founder effect. Problems of identifying Protula and Salmacina taxa are addressed, along with remarks on the "cosmopolitan" designations of some taxa. Various hypotheses concerning Lessepsian migration are discussed, and attributes making Lessepsian migrant serpulid tubeworms successful invasive species are evaluated
Tube ultrastructure of <i>Pomatoceros americanus</i> (Polychaeta, Serpulidae): Implications for the tube formation of serpulids
Experimentele draagconstructie van rondhout
Deze constructie is als eerste in de praktijk toegepast bij de bouw van een werktuigberging
Vijf jaar ervaring in een frisse stal
Mede door de gunstige ervaringen met open en ruime stallen bij jongvee is gekozen voor een stal met een grote inhoud per koe en veel frisse lucht
Winteronderzoek op de Waiboerhoeve
Van de meest actuele projecten worden in dit artikel een kort overzicht gegeven
Serpulidae (Polychaeta) procedentes de la "I excepidcion cubano-espagnola a la Isla de la Juventad y Archipelago de los Canarreos (Cuba).
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