Nålefiskfamilien

Nålefisk-familien
Nålefisk-familien
	Søhest (Hippocampus SP.)
Videnskabelig klassifikation
Rige	Animalia (Dyr)
Række	Chordata (Chordater)
Klasse	Actinopterygii; (Strålefinnede fisk)
Orden	Syngnathiformes; (Rørmundede fisk)
Familie	Syngnathidae
	Hjælp til læsning af taksobokse

Nålefisk-familien (Syngnathidae) er en familie inden for dyreriget.

Hos nogle nålefisk (bl.a. nogle søheste) er det bogstaveligt hannen som er gravid og som føder ungerne. ^[1]

Klassifikation

Tidligere har nålefiskene været betragtet som beslægtede med hundestejlefamilien og medtaget i ordenen hundestejler (Gasterosteiformes) på grund af ligheder som benplader på kroppen i stedet for skæl, men nyere molekylære undersøgelser viser at lighederne kun er overfladiske, og de henregnes nu til forskellige ordener.^[2]

Familie: Syngnathidae

Underfamilie: Syngnathinae Tangnåle (ca. 50 slægter)
- Slægt: Syngnathus (ca. 30 arter)
  - Syngnathus typhle (Tangnål)
  - Syngnathus rostellatus (Lille tangnål)
  - Syngnathus acus (Stor tangnål)
- Slægt: Phyllopteryx
  - Phyllopteryx taeniolatus (Løvpjaltefisk)
- Slægt: Phycodurus
  - Phycodurus eques (Pjaltefisk)
Underfamilie: Hippocampinae Søheste
- Slægt: Hippocampus (ca. 40 arter)

Kilder

Taxonomicon – Family Syngnathidae – pipefishes and seahorses

Referencer

^ Texas A&M University (2008, May 2). Male Seahorses Are Nature's Mr. Mom, Researchers Say. ScienceDaily. Retrieved May 2, 2008 Citat: "...After the female deposits her unfertilized eggs into the male, the outer shell of the eggs breaks down, and tissue from the male grows up around the eggs in the pouch. After fertilizing the eggs, the male closely controls the prenatal environment of the embryos in his pouch...Male pregnancy also results in a reversal in sex-related behaviors, Jones said. "Females exhibit a competitive behavior that's normally a male-type attribute, and males end up being choosy, which is normally a more female-type attribute," he said..."
^ Henrik Carl, Peter Rask Møller, red. (2012). Atlas over danske ferskvandsfisk. Statens Naturhistoriske Museum, Københavns Universitet.

Eksterne henvisninger

Wikimedia Commons har flere filer relateret til Nålefiskfamilien

[1] Texas A&M University (2008, May 2). Male Seahorses Are Nature's Mr. Mom, Researchers Say. ScienceDaily. Retrieved May 2, 2008 Citat: "...After the female deposits her unfertilized eggs into the male, the outer shell of the eggs breaks down, and tissue from the male grows up around the eggs in the pouch. After fertilizing the eggs, the male closely controls the prenatal environment of the embryos in his pouch...Male pregnancy also results in a reversal in sex-related behaviors, Jones said. "Females exhibit a competitive behavior that's normally a male-type attribute, and males end up being choosy, which is normally a more female-type attribute," he said..."

[Atlas-2] Henrik Carl, Peter Rask Møller, red. (2012). Atlas over danske ferskvandsfisk. Statens Naturhistoriske Museum, Københavns Universitet.

[1]

[2]