Treasurer, Jim. (2018). Cleaner Fish Biology and Aquaculture Applications. Sheffield, UK: 5m Publishing.

2019 ◽  
Vol 42 (2) ◽  
pp. 157-157
Author(s):  
David Speare
Keyword(s):  
2018 ◽  
Vol 93 (5) ◽  
pp. 1027-1027
Author(s):  
Ian J. Winfield
Keyword(s):  

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Zegni Triki ◽  
Yasmin Emery ◽  
Magda C. Teles ◽  
Rui F. Oliveira ◽  
Redouan Bshary

AbstractIt is generally agreed that variation in social and/or environmental complexity yields variation in selective pressures on brain anatomy, where more complex brains should yield increased intelligence. While these insights are based on many evolutionary studies, it remains unclear how ecology impacts brain plasticity and subsequently cognitive performance within a species. Here, we show that in wild cleaner fish (Labroides dimidiatus), forebrain size of high-performing individuals tested in an ephemeral reward task covaried positively with cleaner density, while cerebellum size covaried negatively with cleaner density. This unexpected relationship may be explained if we consider that performance in this task reflects the decision rules that individuals use in nature rather than learning abilities: cleaners with relatively larger forebrains used decision-rules that appeared to be locally optimal. Thus, social competence seems to be a suitable proxy of intelligence to understand individual differences under natural conditions.


Author(s):  
Miguel Henriques ◽  
Vitor C. Almada

Underwater behavioural observations were conducted to evaluate the relative importance of cleaning behaviour in three species of common north-eastern Atlantic wrasse (Teleostei: Labridae). At the study site, the only cleaner was Centrolabrus exoletus. A total of 12 species was cleaned, with the wrasse, Symphodus melops and Labrus bergylta being the species most frequently cleaned. Neither S. melops nor Ctenolabrus rupestris, known to be cleaners in other sites or in captivity, could be observed cleaning other fishes. Centrolabrus exoletus was found to be a facultative cleaner fish with cleaning acts representing only 7% of the observed feeding acts. In focal observations of host fishes, the incidence of cleaning acts reached a level (11 h-1 per host) similar to that reported for tropical reef fishes and probably reflects the high numbers of cleaners available. Some factors that may affect the origin of the cleaning interactions are discussed.


Aquaculture ◽  
2020 ◽  
Vol 528 ◽  
pp. 735623 ◽  
Author(s):  
Lena Geitung ◽  
Daniel William Wright ◽  
Frode Oppedal ◽  
Lars Helge Stien ◽  
Tone Vågseth ◽  
...  

2018 ◽  
Vol 6 ◽  
pp. e26265 ◽  
Author(s):  
Yuichi Kano ◽  
Jun Nakajima ◽  
Takeshi Yamasaki ◽  
Jyun-ichi Kitamura ◽  
Ryoichi Tabata

Loach is one of the major cypriniform fishes in freshwater habitats of Japan; 35 taxa/clades have, until now, been recognised. Parallel to genetic studies, morphological examinations are needed for further development of loach study, eventually ichthyology and fish biology. Digital archiving, concerning taxonomy, ecology, ethology etc., is one of the progressive challenges for the open science of biology. This paper aimed to online publish photo images, 3D models and CT scanned data of all the known clades of loaches inhabiting Japan (103 individuals in total with several type specimens), contributing to ichthyology and public interest of biodiversity/biology.Photo images, 3D models and CT scanned data of all the known 35 taxa/clades of loaches inhabiting in Japan were online published at http://ffish.asia/loachesOfJapan and http://ffish.asia/loachesOfJapan3D.


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