Adaptations and Types of Crustacean Symbiotic Associations

Partial revision of the Indo-West Pacific alcyonarian-associated shrimp genus Propontonia Bruce, 1969 (Decapoda: Palaemonidae) with the description of a new species from the Line Islands

“…It is currently believed that symbiotic interaction usually begins with a simple topical association (commensalism) of smaller symbiont with different larger hosts just for protection, and then gradually moves to more dependent and specialized relationships, leading to a gradual morphological specialization of the symbiont [Chow et al, 2021;Van As, Van As, 2019]. Modified morphological forms are often common to species with different host affiliations, potentially representing convergence in dietary character or apomorphic traits restricted to a small group of closely related species.…”

A new species of the fish louse genus Dipteropeltis Calman, 1912 (Crustacea: Branchiura) from Peru

“…It is possible that the elongate carapace of Dipteropeltis spp. also aids in swimming (Van As & Van As 2019). While juvenile specimens appear to rely solely on their legs for movement (Suppl.…”

“…Morphological descriptions of Dipteropeltis are limited, with only adult females having been documented. The rarity and sex of these specimens may be due to the hypothesized nature of this genus being temporary parasites that only attach during feeding (Van As & Van As 2019). Indeed, unlike most other aquatic parasites, most branchiurans are able to swim freely throughout their entire life (Mikheev et al 2015).…”

Prevalence of Parasites in the Mackerel (Scomber scombrus) from the Moroccan Mediterranean Coast

“…for consumers due to parasitic infestations. Parasites such as Anisakidae, Plathelminths, Nematodes, Acanthocephalans, Crustacea, Isopods, and Copepods can cause serious harm to fish, including injuries, hemorrhages, growth deficiency, reduced reproduction, diseases, and high mortality rates (Euzet & Pariselle, 1996 ;Ramdane et al, 2009;Van As & Van As, 2019).…”