Dr. Hiroshi Senou, Japan
Info
Eviota amamiko Fujiwara, Suzuki & Motomura, 2019
Amamiko Dwarfgoby
Two new dwarfgobies, Eviota amamiko and Eviota perspicilla, are described from southern Japan, based on 3 (Ryukyu Islands) and 22 (Satsuma Peninsula and Koshiki, Osumi, and Amami islands) specimens, respectively. Eviota amamiko, belonging to a group lacking cephalic sensory-canal pores, can be distinguished from all other members of Eviota in having the following combination of characters: dorsal/anal fin-ray formula 8/8; 14 or 15 pectoral-fin rays; 5th pelvic-fin ray absent or rudimentary; urogenital papillae of both sexes not fimbriate; five dark brown irregularly shaped (usually X- or Y-like) bars on body; two narrow diagonal red lines below eye; anal-fin base with two reddish-brown spots; no dark spots on caudal peduncle over preural centrum; and caudal-fin base without crescentic marks. Although similar to Eviota japonica Jewett and Lachner 1983, Eviota prasina (Klunzinger 1871), and Eviota queenslandica Whitley 1932, E. perspicilla is clearly distinct from all other congeners in having the following combination of characters: cephalic sensory-canal pore system pattern 2 [lacking only pore H (IT)]; dorsal/anal fin-ray formula 9/8; some pectoral-fin rays branched; dorsal-fin spine not filamentous in both sexes; pelvic fin very long, its tip usually beyond anal-fin origin when appressed [length 26.7–38.9 (mean 34.7) % of standard length]; urogenital papillae of both sexes not fimbriate; five dark postanal bars (spots in preserved specimens) and two dark postocular spots present; two dark spots on pectoral-fin base; no dark spots under pectoral-fin base; distinct dark caudal-peduncle spot over preural centrum; and spinous dorsal fin blackish overall, with two small translucent white circular spots on its base.
Original Description:
Fujiwara, K.; Suzuki, T.; Motomura, H. (2019). Two new dwarfgobies (Gobiidae) from southern Japan: Eviota amamiko and Eviota perspicilla. Ichthyological Research. 67(1): 139-154., available online at https://doi.org/10.1007/s10228-019-00712-x [details]
Jumping guard
A jumping guard prevents (nocturnal) fish from jumping out.
Wrasses, blennies, hawkfishs and gobies jump out of an unprotected tank in fright if their night rest is disturbed, unfortunately these jumpers are found dried up in the morning on carpets, glass edges or later behind the tank.
https://www.korallenriff.de/en/article/1925_5_Jump_Protection_Solutions_for_Fish_in_the_Aquarium__5_Net_Covers.html
A small night light also helps, as it provides the fish with a means of orientation in the dark!
The term "reef safe" is often used in marine aquaristics, especially when buying a new species people often ask if the new animal is "reef safe".
What exactly does reef safe mean?
To answer this question, you can ask target-oriented questions and inquire in forums, clubs, dealers and with aquarist friends:
- Are there already experiences and keeping reports that assure that the new animal can live in other suitably equipped aquariums without ever having caused problems?
- Is there any experience of invertebrates (crustaceans, hermits, mussels, snails) or corals being attacked by other inhabitants such as fish of the same or a different species?
- Is any information known or expected about a possible change in dietary habits, e.g., from a plant-based diet to a meat-based diet?
- Do the desired animals leave the reef structure "alone", do they constantly change it (boring starfish, digger gobies, parrotfish, triggerfish) and thus disturb or displace other co-inhabitants?
- do new animals tend to get diseases repeatedly and very quickly and can they be treated?
- Do known peaceful animals change their character in the course of their life and become aggressive?
- Can the death of a new animal possibly even lead to the death of the rest of the stock through poisoning (possible with some species of sea cucumbers)?
- Last but not least the keeper of the animals has to be included in the "reef safety", there are actively poisonous, passively poisonous animals, animals that have dangerous biting or stinging weapons, animals with extremely strong nettle poisons, these have to be (er)known and a plan of action should have been made in advance in case of an attack on the aquarist (e.g. telephone numbers of the poison control center, the treating doctor, the tropical institute etc.).
If all questions are evaluated positively in the sense of the animal(s) and the keeper, then one can assume a "reef safety".
Amamiko Dwarfgoby
Two new dwarfgobies, Eviota amamiko and Eviota perspicilla, are described from southern Japan, based on 3 (Ryukyu Islands) and 22 (Satsuma Peninsula and Koshiki, Osumi, and Amami islands) specimens, respectively. Eviota amamiko, belonging to a group lacking cephalic sensory-canal pores, can be distinguished from all other members of Eviota in having the following combination of characters: dorsal/anal fin-ray formula 8/8; 14 or 15 pectoral-fin rays; 5th pelvic-fin ray absent or rudimentary; urogenital papillae of both sexes not fimbriate; five dark brown irregularly shaped (usually X- or Y-like) bars on body; two narrow diagonal red lines below eye; anal-fin base with two reddish-brown spots; no dark spots on caudal peduncle over preural centrum; and caudal-fin base without crescentic marks. Although similar to Eviota japonica Jewett and Lachner 1983, Eviota prasina (Klunzinger 1871), and Eviota queenslandica Whitley 1932, E. perspicilla is clearly distinct from all other congeners in having the following combination of characters: cephalic sensory-canal pore system pattern 2 [lacking only pore H (IT)]; dorsal/anal fin-ray formula 9/8; some pectoral-fin rays branched; dorsal-fin spine not filamentous in both sexes; pelvic fin very long, its tip usually beyond anal-fin origin when appressed [length 26.7–38.9 (mean 34.7) % of standard length]; urogenital papillae of both sexes not fimbriate; five dark postanal bars (spots in preserved specimens) and two dark postocular spots present; two dark spots on pectoral-fin base; no dark spots under pectoral-fin base; distinct dark caudal-peduncle spot over preural centrum; and spinous dorsal fin blackish overall, with two small translucent white circular spots on its base.
Original Description:
Fujiwara, K.; Suzuki, T.; Motomura, H. (2019). Two new dwarfgobies (Gobiidae) from southern Japan: Eviota amamiko and Eviota perspicilla. Ichthyological Research. 67(1): 139-154., available online at https://doi.org/10.1007/s10228-019-00712-x [details]
Jumping guard
A jumping guard prevents (nocturnal) fish from jumping out.
Wrasses, blennies, hawkfishs and gobies jump out of an unprotected tank in fright if their night rest is disturbed, unfortunately these jumpers are found dried up in the morning on carpets, glass edges or later behind the tank.
https://www.korallenriff.de/en/article/1925_5_Jump_Protection_Solutions_for_Fish_in_the_Aquarium__5_Net_Covers.html
A small night light also helps, as it provides the fish with a means of orientation in the dark!
The term "reef safe" is often used in marine aquaristics, especially when buying a new species people often ask if the new animal is "reef safe".
What exactly does reef safe mean?
To answer this question, you can ask target-oriented questions and inquire in forums, clubs, dealers and with aquarist friends:
- Are there already experiences and keeping reports that assure that the new animal can live in other suitably equipped aquariums without ever having caused problems?
- Is there any experience of invertebrates (crustaceans, hermits, mussels, snails) or corals being attacked by other inhabitants such as fish of the same or a different species?
- Is any information known or expected about a possible change in dietary habits, e.g., from a plant-based diet to a meat-based diet?
- Do the desired animals leave the reef structure "alone", do they constantly change it (boring starfish, digger gobies, parrotfish, triggerfish) and thus disturb or displace other co-inhabitants?
- do new animals tend to get diseases repeatedly and very quickly and can they be treated?
- Do known peaceful animals change their character in the course of their life and become aggressive?
- Can the death of a new animal possibly even lead to the death of the rest of the stock through poisoning (possible with some species of sea cucumbers)?
- Last but not least the keeper of the animals has to be included in the "reef safety", there are actively poisonous, passively poisonous animals, animals that have dangerous biting or stinging weapons, animals with extremely strong nettle poisons, these have to be (er)known and a plan of action should have been made in advance in case of an attack on the aquarist (e.g. telephone numbers of the poison control center, the treating doctor, the tropical institute etc.).
If all questions are evaluated positively in the sense of the animal(s) and the keeper, then one can assume a "reef safety".
