Ecology of Neophocaena phocaenoides
| Main Ref. | Tan, J.M.L., 1995 |
|---|---|
| Remarks | Found in tropical to warm temperate coastal waters, i.e., shallow bays, mangrove swamps, estuaries and large rivers, but mainly prefers estuarine waters (Ref. 81021). Occurs singly, in pairs, or in small groups of up to 12 individuals. Not as showy as other dolphins; though, they are occasionally seen breaking the surface in calm seas (Ref. 801). Feeds on small fishes, squids and shrimps; also ingests some plant materials including leaves and rice (Ref. 1394). |
Aquatic zones / Water bodies
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
|
|
|
|
Habitat
| Substrate | Pelagic; |
|---|---|
| Substrate Ref. | |
| Special habitats | |
| Special habitats Ref. |
Associations
| Ref. | Jefferson, T.A. and S.K. Hung, 2004 |
|---|---|
| Associations | parasitism; |
| Associated with | External parasites: Conhoderma auritum and Xenobalanus globicipitis on flippers and flukes. Internal parasites: Nasitrema spathulatum, Nasitrema sunameri, Otophocaenurus asiaorientalis, Pseudostenurus sunameri, Stenurus nanjingensis in respiratory passages and cranial sinuses; Pharurus asiaeorientalis in throat and blood sinuses; Halocercus pingi, Halocercus sunameri, Halocercus taurica in lungs and trachea; Pseudostenurus auditivus in tympanic cavity; Campula folium in liver; Campula oblonga in bile ducts, pancreatic ducts and duodenal ampulla; Anisakis typica in stomach; Hadwenius nipponocus in duodenal ampulla; Corynosoma sp., Delphinicola tenuis, Orthosplanchus elongatus; Synthesium tursionis in the intestines; Crassicauda fuelleborni and Diphyllobothrium fuhrmanni from unspecified organs Ref. 81021. |
| Association remarks | |
| Parasitism | outside host (On flippers and flukes.) inside host (In respiratory passages, cranial sinuses, throat and blood sinus, lungs, trachea, tympanic cavity, liver, bile ducts, pancreatic ducts, duodenal ampulla, stomach and intestines.) |
feeding
| Feeding type | plants/detritus+animals (troph. 2.2-2.79) |
|---|---|
| Feeding type Ref. | Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993 |
| Feeding habit | hunting macrofauna (predator) |
| Feeding habit Ref. | Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993 |
Trophic Level(s)
| Estimation method | original sample | unfished population | Remark | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| From diet composition | |||||
| From individual food items | 4.44 | 0.84 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | |||||