Reproductive Parasitism between Distant Phyla: Molecular Identification of Snailfish (Liparidae) Egg Masses in the Gill Cavities of King Crabs (Lithodidae)

  title={Reproductive Parasitism between Distant Phyla: Molecular Identification of Snailfish (Liparidae) Egg Masses in the Gill Cavities of King Crabs (Lithodidae)},
  author={Jennifer R. Gardner and James W. Orr and Duane E. Stevenson and Ingrid Spies and David A. Somerton},
  pages={645 - 657}
Snailfishes of the genus Careproctus deposit egg masses inside the gill cavity of lithodid crabs. Previous attempts to identify the species depositing the eggs have been inconclusive because of the difficulties in identifying snailfish eggs and larvae. For this study, samples were collected from egg masses found in crabs in the commercial fishery and during benthic trawl survey work. Egg masses were found in Lithodes aequispinus (Golden King Crab) and, for the first time, in L. couesi (Scarlet… 

A New Species of Snailfish (Cottiformes: Liparidae) Closely Related to Careproctus melanurus of the Eastern North Pacific

Careproctus ambustus is found at depths of 58–1,172 m and ranges from Japan, through Alaska, to the west coast of Vancouver Island, British Columbia, where its distribution overlaps with C. melanurus, which ranges from southern Alaska and British Columbia to Baja California.

Host selection and ovipositor length in eight sympatric species of sculpins that deposit their eggs into tunicates or sponges

Investigation of host selection and ovipositor length in nine sympatric marine sculpins that oviposit into tunicates or sponges findsSculpins found sympatrically may show host specificity to avoid interspecific competition for spawning niches and Ovipositors may have evolved depending on the species and size of host invertebrates.

Two New Species of Snailfishes of the Genus Careproctus (Liparidae) from the Aleutian Islands, Alaska

Two new species of snailfishes are described from the central Aleutian Islands that have trilobed teeth, moderately large pelvic discs, a cephalic pore pattern of 2-6-7-2, and low counts of median fins and vertebrae, which distinguish them from all other congeners.

A new species of Elassodiscus (Cottoidei: Liparidae) from the North Pacific with an emended diagnosis of the genus

A new snailfish, Elassodiscus nyctereutes, is described on the basis of genetic evidence and morphometric and meristic analysis of 55 specimens, which is most similar to E. caudatus but clearly distinguished from the latter by having more vertebrae.

Careproctus iacchus, a new variegated snailfish (Liparidae) from the Seas of Japan and Okhotsk

A new species of snailfishes, Careproctus iacchus, is described on the basis of three specimens collected from the Seas of Japan and Okhotsk, which is most similar to Care Proctus comus and Careproctor faunus, in having a variegated body coloration.

Reproductive behavior and alternative reproductive strategy in the deep-sea snailfish, Careproctus pellucidus

This study reveals the spawning of C. pellucidus appear to use the mechanosensory lateral line and the chemical sense heavily to adapt to the dim sunlight deep-sea environment.

First Description of Reproductive Behavior and Alternative Reproductive Strategy in the Deep-sea Fish, Careproctus pellucidus.

The unique reproductive biology of the deep-sea fish, C. pellucidus, which does not depend on visual information and uses other sensory modalities is revealed, which is the first report to observe and describe the reproductive behavior of deep- sea fish under free-living conditions.

Careproctus longidigitus, a new snailfish (Liparidae) from the southern Sea of Okhotsk

A new snailfish, Careproctus longidigitus, is described on the basis of four specimens collected off the Shiretoko Peninsula, Hokkaido, Japan. The new species is most similar to C. notosaikaiensis

Habitat influences skeletal morphology and density in the snailfishes (family Liparidae)

It is proposed that skeletal reductions allow snailfishes to maintain neutral buoyancy at great depths in the water column, while supporting efficient feeding and locomotion strategies, calling the existing paradigm into question.

Giant protists (xenophyophores) function as fish nurseries

During a recent research cruise on the continental margin off Costa Rica, we observed many giant agglutinating Xenophyophoroidea (Foraminifera) on both hard and soft substrates. These fist-sized



Notes. Confirmation of Symbiotic Relationship between Liparid Fishes (Careproctus spp.) and Male King Crab (Paralithodes camtschatica)

The larvae of a cluster of eggs found in the Adak Island area of Alaska's Aleutian chain were identified in the laboratory as belonging to the family Liparidae, genus Careproctlls, which ranges from southern California to northwestern Alaska and the Bering Sea and the center of population is at about 550 meters.

Carcinophyly of fish of the genus Careproctus (Scorpaeniformes: Liparidae) in waters of southeastern Sakhalin (Sea of Okhotsk)

  • Yu. N. Poltev
  • Biology, Environmental Science
    Journal of Ichthyology
  • 2013
In waters of southeastern Sakhalin, clutches of snailfishes of the genus Careproctus containing eggs at different stages of development or prolarvae were found on gills of the largest individuals of three species of crabs (Lithodidae)-Paralomis verrilli, P. multispina and Lithodes covesi.

New species of the genus Careproctus (Liparidae) from the Kara Sea with notes on spongiophilia, reproductive commensalism between fishes and sponges (Rossellidae)

Reproductive commensalism between the representatives of the family Liparidae in the Arctic, the species of thefamily Nototheniidae inThe Antarctic, and glass sponges represents a new finding of bionomic bipolarity.

Descriptions of eggs of snailfishes (family Liparidae) from the Bering Sea and eastern North Pacific Ocean

This is the first full description of the embryonic stages of the liparid fishes, Elassodiscus tremebundus, Paraliparis rosaceus, and Careproctus sp.

Concerning the problem of carcinophilia of Careproctus species (Scorpaeniformes: Liparidae) in the North Kurils

Along the east coast of North Kurils, the egg deposits of Careproctus snailfishes were revealed in the gill cavity of 9.9% of all golden king crabs, mostly in individuals with carapace of 61–80 mm width.

Two New Species of Snailfishes of the Genus Careproctus (Scorpaeniformes: Liparidae) from the Bering Sea and Eastern North Pacific Ocean, with a Redescription of Careproctus ovigerus

Two new species of snailfishes are described: Care Proctus lycopersicus from the Bering Sea and Careproctus kamikawai from the eastern North Pacific Ocean off southern California, which have robust bodies, large pelvic discs, and counts of meristic characters, which distinguish them from all other species.

Parasitism of the Golden King Crab, Lithodesaequispinus Benedict, 1895 (Decapoda, Anomura, Lithodidae) By a Liparid Fish

Fish eggs and larvae of the genus Careproctus were found in the gill chamber of ovigerous golden king crabs Lithodes aequispinus. The host crab died subsequent to hatching of the fish eggs in one

Egg Deposition and Development of Eggs and Larvae of Bigmouth Sculpin (Hemitripterus bolini)

The behavior of egg deposition in spongees, in conjunction with the use of sponges by other fishes such as juvenile rockfish and invertebrates such as Golden King Crabs as refuge habitat, suggests that sponge grounds may provide essential fish habitat for H. bolini and other species.

Genetic and morphological evidence for cryptic diversity in the Careproctus rastrinus species complex (Liparidae) of the North Pacific

This phylogeny revealed nine genetically diverged groups in the C. rastrinus species complex, most of which corresponded well with major geographic regions, and suggested that colder climates from the late Pliocene and the isolation of marginal seas during the Pleistocene may have driven the divergence of the species complex.

New species of the genus Careproctus (Liparidae) from the Kara Sea and identification key for congeners of the North Atlantic and Arctic

Five new Arctic species of the genus Careproctus (Liparidae) are described from the Kara Sea, with four species included in the species-group “C. dubius” and the fifth, C. mica sp.n, found at the south of the Novaya Zemlya Depression.