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Mate locating and access behaviour of the parasitic pea crab, Nepinnotheres novaezelandiae, an important parasite of the mussel Perna canaliculus
by
Trottier, Oliver
, Jeffs, Andrew G.
in
Animals
/ Aquaculture
/ Aquaculture products
/ Body Size
/ Brachyura - physiology
/ Crabs
/ Crustaceans
/ Economic impact
/ Female
/ Females
/ Greenshell
/ Host manipulation
/ Host-Parasite Interactions
/ Impact analysis
/ Infestation
/ Male
/ Marine environment
/ Mating behavior
/ Mollusks
/ Muscle Relaxation
/ Nepinnotheres novaezelandiae
/ Nocturnal
/ Parasites
/ Pea crab
/ Perna - parasitology
/ Perna - physiology
/ Perna canaliculus
/ Pinnotherid
/ Risk reduction
/ Sex Attractants - physiology
/ Sexual Behavior, Animal
/ Shellfish
/ Symbionts
/ Upstream
2015
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Mate locating and access behaviour of the parasitic pea crab, Nepinnotheres novaezelandiae, an important parasite of the mussel Perna canaliculus
by
Trottier, Oliver
, Jeffs, Andrew G.
in
Animals
/ Aquaculture
/ Aquaculture products
/ Body Size
/ Brachyura - physiology
/ Crabs
/ Crustaceans
/ Economic impact
/ Female
/ Females
/ Greenshell
/ Host manipulation
/ Host-Parasite Interactions
/ Impact analysis
/ Infestation
/ Male
/ Marine environment
/ Mating behavior
/ Mollusks
/ Muscle Relaxation
/ Nepinnotheres novaezelandiae
/ Nocturnal
/ Parasites
/ Pea crab
/ Perna - parasitology
/ Perna - physiology
/ Perna canaliculus
/ Pinnotherid
/ Risk reduction
/ Sex Attractants - physiology
/ Sexual Behavior, Animal
/ Shellfish
/ Symbionts
/ Upstream
2015
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Mate locating and access behaviour of the parasitic pea crab, Nepinnotheres novaezelandiae, an important parasite of the mussel Perna canaliculus
by
Trottier, Oliver
, Jeffs, Andrew G.
in
Animals
/ Aquaculture
/ Aquaculture products
/ Body Size
/ Brachyura - physiology
/ Crabs
/ Crustaceans
/ Economic impact
/ Female
/ Females
/ Greenshell
/ Host manipulation
/ Host-Parasite Interactions
/ Impact analysis
/ Infestation
/ Male
/ Marine environment
/ Mating behavior
/ Mollusks
/ Muscle Relaxation
/ Nepinnotheres novaezelandiae
/ Nocturnal
/ Parasites
/ Pea crab
/ Perna - parasitology
/ Perna - physiology
/ Perna canaliculus
/ Pinnotherid
/ Risk reduction
/ Sex Attractants - physiology
/ Sexual Behavior, Animal
/ Shellfish
/ Symbionts
/ Upstream
2015
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Mate locating and access behaviour of the parasitic pea crab, Nepinnotheres novaezelandiae, an important parasite of the mussel Perna canaliculus
Journal Article
Mate locating and access behaviour of the parasitic pea crab, Nepinnotheres novaezelandiae, an important parasite of the mussel Perna canaliculus
2015
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Overview
Pea crabs are globally ubiquitous symbionts in the marine environment that cause serious economic impact in the aquaculture production of several major bivalve species. However, little is known about their host-parasite interactions, especially the mating behaviour of these parasites that could prove useful for controlling their infestation in aquaculture. In this study, the mate location behaviour of male New Zealand pea crabs, Nepinnotheres novaezelandiae (Filhol, 1885), was observed when dwelling in its preferred host, the commercially important green-lipped mussel, Perna canaliculus. Given the cryptic behaviour of the male crabs, a novel trapping system was developed to determine whether male crabs would exit their mussel hosts in response to an upstream female crab. The presence of receptive female crabs placed upstream successfully attracted 60% of male crabs from their host over 24 h. Observations of the nocturnal mate-finding behaviour of male crabs were made in darkness using infrared video recordings. Males spent on average 49 min on empty hosts and never left a mussel containing a female conspecific once found, spending 200 min on average to gain entry to the mussel. Male crabs were often observed stroking the mantle edge of the mussel whilst attempting to gain entry, successfully increasing mussel valve gape during entry from 3.7 to 5.5 mm. A pheromone-based mate location system is likely used by this crab to greatly reduce the risks associated with the location of females.
Les crabes petit pois sont globalement des symbiotes omniprésents dans le milieu marin, qui ont de graves conséquences économiques dans la production par l’aquaculture de plusieurs espèces majeures de bivalves. Cependant, on en sait peu sur leurs interactions hôte-parasite, en particulier le comportement d’accouplement de ces parasites, qui pourraient s’avérer utile pour contrôler leur infestation dans l’aquaculture. Dans cette étude, le comportement de recherche de partenaire sexuel par le crabe mâle, Nepinnotheres novaezelandiae (Filhol, 1885), a été observé chez leur hôte préféré, la moule verte d’importance commerciale Perna canaliculus. Étant donné le comportement cryptique du crabe mâle, un nouveau système de piégeage a été mis au point pour déterminer si les crabes mâles quittent leurs hôtes moules en réponse à un crabe femelle en amont. La présence de crabes femelles réceptives situées en amont a réussi à attirer 60 % des crabes mâles de leur hôte sur 24 heures. Les observations du comportement nocturne de recherche de partenaire sexuel des crabes mâles ont été faites dans l’obscurité en utilisant des enregistrements vidéo infrarouge. Les mâles ont passé en moyenne 49 min sur des hôtes vides et n’ont jamais quitté une moule contenant un congénère femelle une fois trouvée, passant 200 min en moyenne pour entrer dans la moule. Les crabes mâles ont été souvent observés en train de caresser le bord du manteau de la moule pour essayer d’entrer, augmentant avec succès l’entrebâillement de la moule pendant leur entrée de 3.7 à 5.5 mm. Il est probable qu’un système de localisation de partenaire sexuel à base de phéromones est utilisé par ce crabe pour réduire considérablement les risques associés à la recherche des femelles.
Publisher
EDP Sciences
Subject
/ Crabs
/ Female
/ Females
/ Male
/ Mollusks
/ Nepinnotheres novaezelandiae
/ Pea crab
/ Sex Attractants - physiology
/ Upstream
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