Nephropidae
Dana, 1852
True Lobsters
Genus Guides
1- Homarus(true lobsters)
Nephropidae is a of large marine decapod crustaceans commonly known as true lobsters. Members possess a robust, elongated body with a well-developed , large asymmetrical claws (chelipeds), and a muscular ending in a broad tail fan. The family includes commercially important such as the European lobster (Homarus gammarus) and the Norway lobster (Nephrops norvegicus). Nephropidae is distinguished from other lobster-like crustaceans by specific morphological and reproductive characteristics.
Pronunciation
How to pronounce Nephropidae: //nɛˈfrɒpɪˌdiː//
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Identification
True lobsters (Nephropidae) are distinguished from spiny lobsters (Palinuridae) and slipper lobsters (Scyllaridae) by the presence of large, well-developed claws on the first pair of legs. The is smooth and lacks the prominent spines characteristic of spiny lobsters. Nephropidae possess a distinct rostrum extending forward from the carapace. The is muscular and terminates in a broad tail fan ( and uropods) used for rapid backward escape swimming. Claws are typically asymmetrical, with one larger crusher claw and one smaller cutter claw.
Images
Habitat
Marine benthic environments; primarily inhabits continental shelf and slope sediments. construct and maintain burrows in soft muddy substrates, with burrow systems serving as shelter and foraging bases. Depth ranges vary by species, from shallow coastal waters to deeper offshore areas.
Distribution
Widespread in temperate and cold marine waters of the Atlantic Ocean, including the northeastern Atlantic, North Sea, and Mediterranean Sea. Distribution extends to the western Atlantic. Records from Scandinavia (Norway, Sweden, Denmark) confirmed.
Life Cycle
Development includes a pre-zoeal larval stage followed by three zoeal instars, bringing total larval stages to four. Larvae are planktonic before settling to benthic .
Behavior
Burrowing well-documented in Nephrops norvegicus: individuals construct and maintain complex burrow systems in soft sediments. Copulatory and -hatching behaviors described; females carry fertilized eggs attached to pleopods during . Rapid backward escape swimming achieved via tail fan flexion.
Ecological Role
Benthic and scavengers; bioturbators through burrowing activity that modifies sediment structure and chemistry.
Human Relevance
High commercial value as seafood; supports significant fisheries in the northeastern Atlantic and Mediterranean. Subject to small- and industrial fishing pressure. monitoring and catch regulation implemented in multiple regions due to exploitation concerns.
Similar Taxa
- PalinuridaeSpiny lobsters lack the large claws characteristic of Nephropidae and possess a spiny .
- ScyllaridaeSlipper lobsters have flattened, broad bodies and reduced , lacking the robust clawed of true lobsters.
- EnoplometopidaeReef lobsters differ in reproductive anatomy and preferences; structure and male reproductive tract distinct from Nephropidae.
Sources and further reading
- BugGuide
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
- Reproduction in Nephrops norvegicus (Decapoda: Nephropidae)
- Feeding ecology ofNephrops norvegicus(Decapoda: Nephropidae)
- Burrowing behaviour of the Norway lobster, Nephrops norvegicus (L.) (Decapoda: Nephropidae)
- THE HABITS BEHAVIOR OF LOBSTERETTE NEPHROPSIS STEWARTI WOOD-MASON(DECAPODA, NEPHROPIDAE) REARED IN AN AQUARIUM
- Spermatogenesis and spermatophore production in the hawaiian red lobster Enoplometopus occidentalis (Randall) (Crustacea, nephropidae)
- Reproduction and Moult Synchronism in Nephrops Norvegicus (L.) (Decapoda, Nephropidae) in the Western Mediterranean: Is Spawning Annual or Biennial?
- Evaluation of Homarus gammarus (Crustacea: Decapoda: Nephropidae) catches and potential in a Mediterranean small-scale fishery