Mozambique country information

Common names: Marracho branco
Occurrence: native
Salinity: brackish
Abundance: abundant (always seen in some numbers) | Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Recorded from Inhaca I. (Ref. 5285). No commercial importance (Ref. 12484). Also Ref. 5213.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mz.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
National Database:

Common names from other countries

Requin à museau pointu, Cazón lechoso, قرش ذو خرطوم مُقرّن, ... more

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

板鰓亜鋼(サメとエイ類) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Rhizoprionodon: rhiza (Gr.), root; prion (Gr.) saw; odon (Gr.), tooth, referring to teeth with serrated (saw-like) bases, or roots [replacement name for Rhizoprion Ogilby 1915, preoccupied by Rhizoprion Jourdan 1861 in mammals]. (See ETYFish); acutus: Latin for sharp or pointed, probably referring to narrow, pointed snout. (See ETYFish).
More on author: Rüppell.

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

海; 新鮮な水; 汽水性の底生の漂泳性; 両側回遊性 (Ref. 51243); 深さの範囲 1 - 200 m (Ref. 244). Tropical; 41°N - 30°S, 27°W - 156°E

分布国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Eastern Atlantic: Madeira and Mauritania to Angola (Ref. 244). Indo-West Pacific: Persian Gulf (Ref. 68964), Red Sea and East Africa to Indonesia, north to Japan, south to Australia. Also reported from Gulf of Taranto in Mediterranean Sea (Ref. 231).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: L_m 75.0, range 70 - 80 cm
Max length : 175 cm TL オス/雌雄の選別がない; (Ref. 12693); 80.8 cm TL (female); common length : 110 cm TL オス/雌雄の選別がない; (Ref. 47737); 最大公表体重: 5.0 kg (Ref. 40637); 最大記録サイズ: 8 年 (Ref. 244)

簡単な記述検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 0; 肛門の骨: 0. A small shark with a long, narrow, snout, big eyes without notches, long labial furrows, and oblique-cusped teeth which may be smooth-edged or weakly serrated; 2nd dorsal fin small, low and behind larger anal fin; no interdorsal ridge (Ref. 5578). Grey or grey-brown above, white below (Ref. 5578). Dorsal and anal fins with dusky or blackish edges, fins slightly darker than back (Ref. 9997).

Found on continental shelves, often on sandy beaches and rarely in estuaries (Ref. 244). Reported to enter freshwater and recorded several times from Cambodia as far upstream as the Great Lake (Ref. 12693). Occurs near the surface in shallow waters (Ref. 12693). Feeds mainly on small pelagic and benthic bony fishes, also cephalopods and other invertebrates (Ref. 244). Viviparous (Ref. 50449). Utilized fresh and possibly dried salted for human consumption and for fishmeal (Ref. 9997). The 178 cm specimen recorded off Africa is possibly based on some other species (Ref. 9997).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

Distinct pairing with embrace (Ref. 205). Viviparous, with a yolk-sac placenta; 2 to 8 in a litter (Ref. 9997), usually 2 to 5 after a gestation period of ~ 12 months; no seasonality in the reproductive cycle (Ref.58048). Size at birth between 25 and 39 cm.

主な参考文献 Upload your references | 参考文献 | コーディネーター : Compagno, Leonard J.V. | 協力者

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

IUCNのレッドリストの状況は (Ref. 130435)

攻撃されやすい (VU) (A2bd); Date assessed: 04 February 2020

CITES (Ref. 128078)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

Harmless (Ref. 244)

Human uses

水産業: 商業; ゲームフィッシュ: はい

FAO(Publication : search) | FishSource | 私達の周りの海

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水産養種の保全を確認 | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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インターネットの情報源

Estimates based on models

Preferred temperature (Ref. 115969): 19.6 - 28.5, mean 26.9 (based on 1463 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00339 (0.00273 - 0.00421), b=3.08 (3.04 - 3.12), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

栄養段階 (Ref. 69278): 4.3 ±0.4 se; based on diet studies.

回復力 (Ref. 120179): 非常に低い, １４年以上の倍増期間の最小個体群 (K=0.2-0.6; Fec=1).

Fishing Vulnerability (Ref. 59153): High vulnerability (61 of 100).

価格帯 (Ref. 80766): Medium.

Rhizoprionodon acutus (Rüppell, 1837)

Common names from other countries

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

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

分布国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Length at first maturity / サイズ / 重さ / 年齢

簡単な記述検索表 | 形態学 | 形態計測学

生物学用語集 (例 epibenthic)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター : Compagno, Leonard J.V. | 協力者

IUCNのレッドリストの状況は (Ref. 130435)

CITES (Ref. 128078)

CMS (Ref. 116361)

人間に対する脅威

Human uses

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XMLをダウンロードして下さい

インターネットの情報源

Estimates based on models

Rhizoprionodon acutus (Rüppell, 1837)

Common names from other countries

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

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

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Length at first maturity / サイズ / 重さ / 年齢

簡単な記述 検索表 | 形態学 | 形態計測学

生物学 用語集 (例 epibenthic)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター : Compagno, Leonard J.V. | 協力者

IUCNのレッドリストの状況は (Ref. 130435)

CITES (Ref. 128078)

CMS (Ref. 116361)

人間に対する脅威

Human uses

より多くの情報

用具

特記事項

XMLをダウンロードして下さい

インターネットの情報源

Estimates based on models

分布国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

簡単な記述検索表 | 形態学 | 形態計測学

生物学用語集 (例 epibenthic)