scholarly journals Facultative cleaning behaviour of juvenile Diplodus sargus (Sparidae) and its ecological role in marine temperate waters

2019 ◽  
Vol 629 ◽  
pp. 165-177
Author(s):  
J Neto ◽  
D Vieira ◽  
D Abecasis ◽  
J Marques ◽  
L Gordo ◽  
...  
Keyword(s):  
Ecological Role ◽  
Cleaning Behaviour ◽  
Diplodus Sargus

Cleaning behaviour in Diplodus spp.: chance or choice? A hint for future investigations

2001 ◽  
Vol 81 (4) ◽  
pp. 715-716 ◽  
Author(s):  
Stefano Mariani
Keyword(s):  
Fish Species ◽  
Coastal Lagoons ◽  
Stomach Contents ◽  
Coastal Environments ◽  
Central Mediterranean ◽  
Diplodus Puntazzo ◽  
Cleaning Behaviour ◽  
Diplodus Sargus ◽  
Negligible Contribution

Ectoparasitic crustaceans (Copepoda: Caligidae) occurred at considerable frequency in stomach contents of young specimens of Diplodus sargus and Diplodus puntazzo (Pisces: Sparidae) from two central Mediterranean coastal lagoons. This finding suggests that the ectoparasites might give a non-negligible contribution to the diet of the studied fish species and reveal a certain adaptive advantage of cleaning behaviour in coastal environments.

scholarly journals Comparative behavioural observations demonstrate the ‘cleaner’ shrimp Periclimenes yucatanicus engages in true symbiotic cleaning interactions

2017 ◽  
Vol 4 (4) ◽  
pp. 170078 ◽  
Author(s):  
Benjamin M. Titus ◽  
Clayton Vondriska ◽  
Marymegan Daly
Keyword(s):  
Total Duration ◽  
Reef Fishes ◽  
Comparative Investigation ◽  
Ecological Role ◽  
Sea Anemones ◽  
Netherlands Antilles ◽  
Cleaning Behaviour ◽  
The Status ◽  
Caribbean Coral Reefs ◽  
Cleaner Shrimp

Cleaner shrimps are ecologically important members of coral reef communities, but for many species, cleaner status (i.e. dedicated, facultative and mimic), clientele and ecological role remain unverified or described. On Caribbean coral reefs, the spotted ‘cleaner’ shrimp Periclimenes yucatanicus forms symbioses with sea anemones that may serve as cleaning stations for reef fishes. The status of this species as a cleaner is ambiguous: only a single in situ cleaning interaction has been reported, and in the only test of its efficacy as a cleaner, it did not effectively reduce parasite loads from surgeonfish. It has subsequently been hypothesized by other authors to be a cleaner mimic. We conduct a comparative investigation of cleaning behaviour between P. yucatanicus and the ecologically similar, closely related, dedicated cleaner shrimp Ancylomenes pedersoni in Curacao, Netherlands Antilles. We provide the first detailed field observations on cleaning behaviour for P. yucatanicus and test multiple behavioural expectations surrounding mimicry in cleaning symbioses. We found that P. yucatanicus regularly signals its availability to clean, client fishes visit regularly and the shrimp does engage in true symbiotic cleaning interactions, but these are brief and our video reflects a species that appears hesitant to engage posing clients. In comparison to A. pedersoni , P. yucatanicus stations had significantly fewer total visits and cleans, and 50% of all cleaning interactions at P. yucatanicus stations were shorter than 10 s in total duration. Our behavioural observations confirm that P. yucatanicus is a true cleaner shrimp; we reject the hypothesis of mimicry. However, investigation is needed to confirm whether this species is a dedicated or facultative cleaner. We hypothesize that P. yucatanicus has a specialized ecological role as a cleaner species, compared to A. pedersoni .

Cleaning symbioses from the parasites' perspective

Parasitology ◽  
2002 ◽  
Vol 124 (7) ◽  
pp. 65-81 ◽  
Author(s):  
A. S. GRUTTER
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Point Of View ◽  
Ecological Role ◽  
Potential Influence ◽  
Cleaning Behaviour ◽  
Lack Of Information ◽  
Wide Range

Cleaning behaviour has generally been viewed from the cleaner or client's point of view. Few studies, however, have examined cleaning behaviour from the parasites' perspective, yet they are the equally-important third players in such associations. All three players are likely to have had their evolution affected by the association. As cleaner organisms are important predators of parasites, cleaners are likely to have an important effect on their prey. Little, however, is known of how parasites are affected by cleaning associations and the strategies that parasites use in response to cleaners. I examine here what parasites are involved in cleaning interactions, the effect cleaners have on parasites, the potential counter-adaptations that parasites have evolved against the predatory activities of cleaner organisms, the potential influence of cleaners on the life history traits of parasites, and other factors affected by cleaners. I have found that a wide range of ectoparasites from diverse habitats have been reported to interact with a wide range of cleaner organisms. Some of the life history traits of parasites are consistent with the idea that they are in response to cleaner predation. It is clear, however, that although many cleaning systems exist their ecological role is largely unexplored. This has likely been hindered by our lack of information on the parasites involved in cleaning interactions.

Ecological Role of Exopolysaccharides of Bacillariophyta: A Review

2017 ◽  
Vol 19 (1) ◽  
pp. 5-24 ◽  
Author(s):  
E. I. Shnyukova ◽  
E. K. Zolotareva
Keyword(s):  
Ecological Role

Studi Taksonomi dan Potensi Beberapa Jamur Liar di Pulau Belitong

2020 ◽  
Vol 3 (1) ◽  
pp. 24
Author(s):  
Ivan Permana Putra
Keyword(s):  
Bioactive Compounds ◽  
Schizophyllum Commune ◽  
Ecological Role ◽  
Future Potential

Abstract : Macrofungi or mushroom are cosmopolitan heterotrophic organisms which have a very important ecological role. Information on the presence and description of macrofungi can be used as a reference for conservation steps and future potential utilization. The purpose of this study was to provide  description of macro fungi and their potential utilization at Belitong Island. All macro fungi found were Basidiomycota. The identification results showd there were 11 species of mushrooms, i.e. Chlorophyllum molybdites, Lepiota sp., Marasmius sp., Parasola sp., Phallus indusiatus, Lentinus sp.1, Lentinus sp.2, Microporus sp., Polyporus cf. tricholoma, Russula sp., dan Schizophyllum commune. All mushrooms are decomposer at the study site. Some mushrooms have potential as food, medicine and source of other bioactive compounds. This paper explains how to use macroscopic characters to help the identification of macrofungi.Abstrak : Jamur makro merupakan organisme heterotof kosmopolitan yang memiliki peran ekologis yang sangat penting. Informasi mengenai keberadaan dan deskripsi jamur makro dapat dijadikan acuan untuk langkah konservasi serta pemanfaatan potensinya di masa mendatang. Tujuan dari penelitian ini adalah untuk menyediakan deskripsi jamur makro dan potensi pemanfaatannya di Pulau Belitong. Seluruh jamur makro yang ditemukan merupakan Filum Basidiomycota. Hasil identifikasi menunjukan terdapat 11 spesies jamur yaitu Chlorophyllum molybdites, Lepiota sp., Marasmius sp., Parasola sp., Phallus indusiatus, Lentinus sp.1, Lentinus sp.2, Microporus sp., Polyporus cf. tricholoma, Russula sp., dan Schizophyllum commune. Seluruh jamur merupakan dekomposer pada lokasi penelitian. Beberapa jamur berpotensi sebagai bahan pangan, obat, dan sumber senyawa bioaktif lainnya. Pada tulisan ini dijelaskan cara menggunakan karakter makroskopik untuk membantu identifikasi jamur.

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