Potamothrissa acutirostris, Sharpnosed sawtooth pellonuline : fisheries

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Potamothrissa acutirostris (Boulenger, 1899)

Sharpnosed sawtooth pellonuline
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Potamothrissa acutirostris
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Actinopteri > Clupeiformes (Herrings) 鯡形目 (Herrings) > Clupeidae (Herrings, shads, sardines, menhadens) 鯡科 (Herrings, shads, sardines, menhadens) > Dorosomatinae
Etymology: Potamothrissa: Greek, potamos = river + Greek, thrissa, -es = shad (Ref. 45335).
More on author: Boulenger.

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水 大洋性. 熱帶; 7°N - 5°S

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Africa: widespread in Congo River basin (Ref. 188, 28136) in the Democratic Republic of the Congo (Ref. 93833, 122734) and Central African Republic (Ref. 45441), also Lake Mweru in Zambia (Ref. 52959).
非洲: 廣泛地分佈於剛果河流域中, 包括布拉札維, Oubangui(=烏班基河) ,盧阿拉巴河, Kasai 與其他的支流。 (參考文獻 188)

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 188)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 0; 背的軟條 (總數): 13-14; 臀棘 0; 臀鰭軟條: 16 - 20. Diagnosis: Body slender, its depth 19-27% of standard length; pre-pelvic scutes fairly strongly keeled, beginning under or just before pectoral fin base, 11-13 pre-pelvic and 10-12 post-pelvic scutes; snout pointed; lower jaw not projecting, included in upper when mouth closed, deepest at mid-point of jaw, with small saw-like teeth on either side; pre-maxillae with rather peg-like teeth, those near mid-line pointing forward; maxilla very slender, its blade over 3 times as long as deep, upper edge ridged, lower edge without denticulations; posterior supra-maxilla very small, spatulate, its shaft about as long as its blade; lower gillrakers 16-18 (Ref. 188). It differs from Potamothrissa obtusirostris and P. whiteheadi in its pointed snout, more gillrakers, 16-18 vs. 14-16 and 14-17 respectively, and first pre-pelvic scute beginning under or just before pectoral fin base (Ref. 188, 28136). Other pellonulines lack saw-like teeth at the sides of the lower jaw (Ref. 188).
身體細長的。 前腹鰭鱗甲相當有明顯的龍骨, 開始在或下面就在胸鰭基底之前,11 到 13+10 到 12. 吻端尖的。 下頜不是突出, 包含在上面的內當嘴巴閉合時, 深的在頜的中央點, 有小的像見到一樣的牙齒在也旁; 具有相當像釘一樣的齒前顎; 顎骨非常細長的; 第二個上顎骨非常小的。

生物學特性     字彙 (例如 epibenthic)

Found in rivers and lakes, apparently in both running and still water (Ref. 188), but not swimming upriver in the smaller streams (Ref. 4910). The distribution of this species suggests that it tolerates a wide variety of water conditions (Ref. 188).

出現於河川與湖泊, 顯然地在靜止與流動的水中。 這種的分布顯示出它容忍各式各樣的水環境。

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

非洲: 廣泛地分佈於剛果河流域中, 包括布拉札維, Oubangui(=烏班基河) ,盧阿拉巴河, Kasai 與其他的支流。 (參考文獻 188)

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Whitehead, P.J.P., 1985. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188)

IUCN 瀕危狀態 (Ref. 125652)

  無危 (LC) ; Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





人類使用

漁業: 自給性漁業
FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00425 - 0.01868), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.1   ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .
價格種類 (Ref. 80766):   Low.