Ecology Summary - Pontoporeia femorata

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Ecology of Pontoporeia femorata

Main Ref.	Bonsdorff, E. and T.H. Pearson, 1999
Remarks	It inhabits muddy areas, with low temperatures and medium high salinity at depths over 35 meters, compared to shallower areas (Ref. 95730). A mobile surface detritivore (Ref. 95752). Are nocturnal swimmers. Growth periods linked to spring phytoplankton blooms. Semelparous, with lifecycles lasting from 1 to 3 years in the northern Baltic proper. Eggs hatch in March-April. Sexual maturity is attained in 6 to 7 months (autumn). Males then undergo metamorphosis to adapt to pelagic life during which they do not feed, mate with females along the water column and then eventually die. The females, on the other hand, die after releasing their young the following spring (Ref. 90432).

Main Ref.

Bonsdorff, E. and T.H. Pearson, 1999

Remarks

It inhabits muddy areas, with low temperatures and medium high salinity at depths over 35 meters, compared to shallower areas (Ref. 95730). A mobile surface detritivore (Ref. 95752). Are nocturnal swimmers. Growth periods linked to spring phytoplankton blooms. Semelparous, with lifecycles lasting from 1 to 3 years in the northern Baltic proper. Eggs hatch in March-April. Sexual maturity is attained in 6 to 7 months (autumn). Males then undergo metamorphosis to adapt to pelagic life during which they do not feed, mate with females along the water column and then eventually die. The females, on the other hand, die after releasing their young the following spring (Ref. 90432).

Aquatic zones / Water bodies

	Marine - Neritic	Marine - Oceanic	Brackishwater	Freshwater
Marine zones / Brackish and freshwater bodies	supra-littoral zone littoral zone sublittoral zone	epipelagic mesopelagic epipelagic abyssopelagic hadopelagic	estuaries/lagoons/brackish seas mangroves marshes/swamps	rivers/streams lakes/ponds caves exclusively in caves

Highighted items on the list are where Pontoporeia femorata may be found.

Habitat

Substrate	Benthic; Soft Bottom: sand; silt; mud;
Substrate Ref.	Bonsdorff, E. and T.H. Pearson, 1999
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	mainly plants/detritus (troph. 2-2.19)
Feeding type Ref.	Bonsdorff, E. and T.H. Pearson, 1999
Feeding habit	other
Feeding habit Ref.	Bonsdorff, E. and T.H. Pearson, 1999

Trophic Level(s)

Estimation method	original sample		unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition
From individual food items	2.00	0.00			Trophic level and s.e. inferred from exclusive plant/detritus food items.
Ref.

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