You can sponsor this page

Placidochromis trewavasae Hanssens, 2004

上传你的 图片 和 影像
Pictures | 谷歌图片
Image of Placidochromis trewavasae
No image available for this species;
drawing shows typical species in Cichlidae.


Malawi country information

Common names: [No common name]
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type locality of the holotype of P. trewavasae: 'Transect Mazinzi Bay-Kadango, SE Arm (Malawi)' (Ref. 55898). Found in the central part of the southeastern arm of Lake Malawi (Ref. 55898). Also Ref. 79521.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mi.html
National Fisheries Authority: http://isp.msu.edu/AfricanStudies/Plea/mfri.htm
Occurrences: Occurrences Point map
Main Ref: Hanssens, M., 2004
National Database:

Common names from other countries

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Cichliformes (Cichlids, convict blennies) 鱸形目 (Cichlids, convict blennies) > Cichlidae (Cichlids) 麗魚科 (Cichlids) > Pseudocrenilabrinae
Etymology: Placidochromis: Latin, placidus = of peaceful or tranquile appearance + Greek, chromis = a fish, perhaps a perch (Ref. 45335);  trewavasae: Named in honour of Dr. Ethelwynn Trewavas, who worked on cichlid taxonomy from the late 1920s until her death in 1993; considered the founding "mother" of Malawi cichlid taxonomy (Ref. 55898).

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 底中水层性; 深度上下限 50 - 70 m (Ref. 55898).   热带

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Africa: endemic to Lake Malawi, present in the southeastern arm of the lake in Malawi (Ref. 55898).
非洲: 马拉威湖。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 6.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 55898)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 15; 背的软条 (总数): 10; 臀棘 3; 臀鳍软条: 8 - 9. Diagnosis: head length 35.4-36.4 %SL; snout length 30.0-33.3 % head length; lower jaw length 40.0-41.3 % head length; premaxillary pedicel length 34.0-35.6 % head length; lachrymal 18.2-19.6 % head length; eye diameter 35.3-36.1 % head length; interorbital width 17.8-20.0 % head length; 21-24 gill-rakers on lower limb of first arch; predorsal distance 37.7-39.1 %SL (Ref. 55898).
鉴别: 头长 35.4-36.4% SL; 吻的长度 30.0-33.3% 头长; 下颌长度 40.0-41.3% 头长; 上颌骨前的茎长度 34.0-35.6% 头长; 泪骨 18.2-19.6% 头长; 眼直径 35.3-36.1% 头长; 眼间骨宽度 17.8-20.0% 头长; 在第一鳃弓的下肢上的 21-24个鳃耙; 前背的距离 37.7-39.1% SL.(参考文献 55898) 描述: 身体背部轮廓更强烈中凸超过腹的身体轮廓; 几乎笔直地在一些标本的腹面身体轮廓; 头部背面轮廓笔直地在眼之下; 吻中等長度的﹐尖的與有角的; 嘴大的; 口裂於大約 20個 ° 傾向到水平的; 顎骨延伸超過垂直的在眼的前緣; 外部的口部齒小的, 混合的雙尖, 三尖瓣或肩負了三尖瓣,前面地靠攏在一起, 變成單犬齒而且更廣泛在後部地設定; 內部的口部齒肩負了三尖瓣; 在頰上的 2-3個成列的鱗片; 碰觸頭部背面輪廓的眼的上緣; 在外形上的低咽的頜正常; 所有的咽齒細的; 在下肢上的鰓耙長且細的.(參考文獻 55898) 體色 保護: 雌性與不成熟的雄性: 身體灰白的黃褐色的; 在背鰭之下的 6個模糊的縱帶; 所有的鰭灰白的; 背鰭有一些模糊的斑點; 斑點合併成斜紋了軟的之上背部的.(參考文獻 55898) 成熟的雄魚: 深色的吻,唇,下巴與腹面; 背鰭有灰色的基底,細的白色靠近邊緣的條紋與深色的垂部與頂端; 寬的深色斜紋在軟的背部; 臀鰭深色的; 對腹鰭的深色前緣.(參考文獻 55898)

生物学特性     字汇 (例如 epibenthic)


Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

非洲: 马拉威湖。

主要参考文献 Upload your references | 参考文献 | 合作者 : Kullander, Sven O. | 合作者

Hanssens, M., 2004. The deep-water Placidochromis species. p. 104-197. In J. Snoeks (ed.) The cichlid diversity of Lake Malawi/Nyasa/Niassa: identification, distribution and taxonomy. Cichlid Press, El Paso, USA. (Ref. 55898)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 20 June 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的




人类利用

FAO(Publication : search) | FishSource |

更多信息

国家
FAO区域
生态系
标本纪录
简介
Stocks
生态学
食性
食物相
食物消耗量
定量
俗名
同种异名
新陈代谢
捕食者
生态毒物学
繁殖
成熟度
产卵场
孕卵数

卵的发育
年龄范围
成长
体长-体重
体长-体长
体长-频率
形态测量图
型态特徵
仔鱼
稚鱼动力学
入添量
丰度
参考文献
养殖
养殖信息
品种
遗传学
Electrophoreses
遗传率
疾病
加工
Mass conversion
合作者
照片
Stamps, Coins Misc.
声音
神经毒
速度
泳型
鳃区
Otoliths
脑重体重比
眼睛色素

工具

特别资料

下载 XML

网络资源

Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes(, ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(基因组, 核苷酸) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | 树状分类阶层 | Wikipedia(转至, 搜寻) | World Records Freshwater Fishing | Zoobank | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).