Reproductive biology and recruitment of the deep-sea fish community from the NW Mediterranean continental margin

2013 ◽  
Vol 118 ◽  
pp. 222-234 ◽  
Author(s):  
U. Fernandez-Arcaya ◽  
G. Rotllant ◽  
E. Ramirez-Llodra ◽  
L. Recasens ◽  
J. Aguzzi ◽  
...  
Keyword(s):  
Reproductive Biology ◽  
Continental Margin ◽  
Deep Sea ◽  
Fish Community ◽  
Nw Mediterranean ◽  
Sea Fish

Parasites of the deep-sea fish Mora moro (Risso, 1810) from the NW Mediterranean Sea and relationship with fish diet and enzymatic biomarkers

2014 ◽  
Vol 92 ◽  
pp. 115-126 ◽  
Author(s):  
Sara Dallarés ◽  
María Constenla ◽  
Francesc Padrós ◽  
Joan E. Cartes ◽  
Montse Solé ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Deep Sea ◽  
Fish Diet ◽  
Nw Mediterranean ◽  
Nw Mediterranean Sea ◽  
Sea Fish

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

2021 ◽  
Author(s):  
Toshiaki Mori ◽  
Kazuya Fukuda ◽  
Syouko Ohtsuka ◽  
Shinya Yamauchi ◽  
Tatsuki Yoshinaga
Keyword(s):  
Reproductive Biology ◽  
Reproductive Behavior ◽  
Deep Sea ◽  
Reproductive Strategy ◽  
Aggressive Display ◽  
Territorial Male ◽  
First Report ◽  
Spawning Substrate ◽  
Alternative Reproductive Strategy ◽  
Sea Fish

Abstract The reproductive biology of deep-sea fishes is largely unknown because of the difficulty of behavioral observations in this environment. In this study, the reproductive behavior of the deep-sea snailfish, Careproctus pellucidus, which lives at depths > 200 m, was observed in an aquarium. To the best of our knowledge, this is the first report to observe and describe the reproductive behavior of deep-sea fish under free-living conditions. Fishes were collected at a depth of approximately 300 m (36°70′ N; 141°00′ E) on July and August 2018 and kept for observation until March 2019. We observed that almost all spawnings took place between one male and one female. Males defended a spawning substrate against other males and exhibited body-wiggling behavior for both courtship and aggressive display. Females visited the male’s territory and spawned a demersal adhesive egg mass on the substrate. The territorial male then sought the spawned eggs using filamentous rays in the lower pectoral-fin lobe and released sperm when he located the eggs. Males remained near the spawning substrate after spawning but did not perform any parental care. Notably, sneaking behavior by a non-territorial male was observed in one case; this is the first report of this alternative reproductive strategy (or tactic) in a deep-sea fish. Our study reveals the unique reproductive biology of the deep-sea fish, C. pellucidus, which does not depend on visual information and uses other sensory modalities.

Hydrocarbons, PCBs and DDT in the NW Mediterranean deep-sea fish Mora moro

2001 ◽  
Vol 48 (2) ◽  
pp. 495-513 ◽  
Author(s):  
Montserrat Solé ◽  
Cinta Porte ◽  
Joan Albaigés
Keyword(s):  
Deep Sea ◽  
Nw Mediterranean ◽  
Sea Fish

scholarly journals THE MOST ABUNDANCE AND THE VERY RARE SPECIES IN THE DEEP SEA FISH COMMUNITY IN THE WESTERN SUMATERA, EASTERN INDIAN OCEAN

2017 ◽  
Vol 13 (1) ◽  
pp. 17
Author(s):  
Badrudin Badrudin ◽  
Duto Nugroho ◽  
Ali Suman
Keyword(s):  
Indian Ocean ◽  
Rare Species ◽  
Deep Sea ◽  
Fish Community ◽  
Species Abundance ◽  
Eastern Indian Ocean ◽  
Ecological Communities ◽  
Sea Fish

Variation in species abundance provides one of the striking phenomena observed in ecological communities. This variation has led ecologists to pose central questions pertaining to the nature of communities. Most of the deep sea regions provide the most widely habitat, but until recently information on its community is very little.

Dissolved oxygen and temperature best predict deep-sea fish community structure in the Gulf of California with climate change implications

2020 ◽  
Vol 637 ◽  
pp. 159-180
Author(s):  
ND Gallo ◽  
M Beckwith ◽  
CL Wei ◽  
LA Levin ◽  
L Kuhnz ◽  
...  
Keyword(s):  
Climate Change ◽  
Community Structure ◽  
Community Composition ◽  
Environmental Conditions ◽  
Deep Sea ◽  
Gulf Of California ◽  
Fish Community ◽  
Demersal Fish ◽  
Fish Community Structure ◽  
Explained Variance

Natural gradient systems can be used to examine the vulnerability of deep-sea communities to climate change. The Gulf of California presents an ideal system for examining relationships between faunal patterns and environmental conditions of deep-sea communities because deep-sea conditions change from warm and oxygen-rich in the north to cold and severely hypoxic in the south. The Monterey Bay Aquarium Research Institute (MBARI) remotely operated vehicle (ROV) ‘Doc Ricketts’ was used to conduct seafloor video transects at depths of ~200-1400 m in the northern, central, and southern Gulf. The community composition, density, and diversity of demersal fish assemblages were compared to environmental conditions. We tested the hypothesis that climate-relevant variables (temperature, oxygen, and primary production) have more explanatory power than static variables (latitude, depth, and benthic substrate) in explaining variation in fish community structure. Temperature best explained variance in density, while oxygen best explained variance in diversity and community composition. Both density and diversity declined with decreasing oxygen, but diversity declined at a higher oxygen threshold (~7 µmol kg-1). Remarkably, high-density fish communities were observed living under suboxic conditions (<5 µmol kg-1). Using an Earth systems global climate model forced under an RCP8.5 scenario, we found that by 2081-2100, the entire Gulf of California seafloor is expected to experience a mean temperature increase of 1.08 ± 1.07°C and modest deoxygenation. The projected changes in temperature and oxygen are expected to be accompanied by reduced diversity and related changes in deep-sea demersal fish communities.

Sign in / Sign up

Export Citation Format

Share Document