Two new deep-water mysids from the subfamily Petalophthalminae (Crustacea: Mysida: Petalophthalmidae) are described specimens collected Challenger Plateau, Chatham Rise, and off east coast of North Island New Zealand. These species raise number both genera to five. Petalophthalmus lobatus sp. nov. differs its congeners by structure an elongated ventilation lobe on seventh oostegites, laterally flattened eyes, armature telson. Ipirophthalmus crusulus can easily be distinguished rudimentary...

A new species of the palaemonid genus Paraclimenes is described from relatively deep water in New Zealand. The can easily be distinguished only other two known by non-spatulate chela first pereiopod, size uropods and produced distal telson margin.

Squaliforme sharks are a common but relatively vulnerable bycatch in many deep water fisheries. Eleven species of squaliforme shark commonly caught at depths 200-1200 m on Chatham Rise, New Zealand, and their diversity suggests they might occupy different niches. The diets 133 Deania calcea 295 Squalus acanthias were determined from examination stomach contents. diet D. was characterised by mesopelagic fishes, S. benthic to pelagic more adaptive included likely scavenging. Multivariate...

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 407:209-225 (2010) - DOI: https://doi.org/10.3354/meps08580 Feeding habits and niche separation among deep-sea chimaeroid fishes Harriotta raleighana, Hydrolagus bemisi novaezealandiae Matthew R. Dunn*, Lynda Griggs, Jeff Forman, Peter Horn National Institute of Water Atmospheric Research Ltd., 301 Evans Bay...

Abstract The diet of hoki was determined from examination stomach contents 1992 fish 26–112 cm total length (TL) sampled at depths 209–904m on Chatham Rise, New Zealand, summer research trawl surveys and seasonal commercial fishing trawls, during 2004–2008. Prey predominantly euphausiids, mesopelagic fishes natant decapods. Multivariate analyses using distance-based linear models, non-parametric multi-dimensional scaling similarity percentages indicated that the best predictors variability...

The diet of Antarctic silverfish Pleuragramma antarcticum was evaluated by examining stomach contents specimens collected in the Ross Sea (71°–77° S; 165°–180° E) January to March 2008. (50–236 mm standard length, L S ) and prey items were analysed for stable‐isotopic composition carbon nitrogen. According index relative importance ( I RI ), which incorporates frequency occurrence, mass number items, most important copepods (81% over all specimens), predominantly Metridia gerlachei...

The diet of the alfonsino Beryx splendens was determined from examination stomach contents 287 specimens 17 to 48 cm fork length ( L F ) sampled by bottom trawl on Chatham Rise east New Zealand. Prey items were predominantly crustaceans and mesopelagic fishes. most important prey species mass Sergestes spp. prawns, followed myctophid Lampanyctodes hectoris , then Pasiphaea prawns. Multivariate analyses indicated that small (euphausiids amphipods) in smaller B. (100–424 g, 17–26·5 cm), with...

We evaluate hypotheses for meso-scale spatial structure in an orange roughy (Hoplostethus atlanticus) stock using samples collected during research trawl surveys off the east coast of New Zealand. Distance-based linear models and generalised additive were used to identify most significant biological, environmental, temporal predictors variability diet, proportion stomachs containing prey, standardised weight fish somatic weight, total reproductive activity. The diet was similar that observed...

The diet of smooth skate Dipturus innominatus was determined from examination stomach contents 321 specimens 29·3–152·0 cm pelvic length, sampled research and commercial trawlers at depths 231–789 m on Chatham Rise, New Zealand. dominated by the benthic decapods Metanephrops challengeri Munida gracilis , natant decapod Campylonotus rathbunae fishes 17 families, which hoki Macruronus novaezelandiae sea perch Helicolenus barathri various Macrouridae a variety discarded were most important....

The diets of black oreo Allocyttus niger, smooth Pseudocyttus maculatus, spiky Neocyttus rhomboidalis and orange roughy Hoplostethus atlanticus were determined from examination contents 240, 311, 76 415 non-empty stomachs, fishes sampled by bottom trawl on Chatham Rise to the east South Island, New Zealand. had an opportunistic predatory strategy with a broad diet dominated prawns mesopelagic teleosts, but substantial components mysids cephalopods. maculatus was strongly specialized...

Diet composition of the southern Ray's bream Brama australis was examined from stomach contents 399 specimens sampled by bottom trawl on Chatham Rise to east South Island, New Zealand, over 3 years. Prey items were predominantly mesopelagic fishes and crustaceans. Multivariate analysis indicated that moon phase explained more diet variability than any other predictor examined. It appears likely is influenced a combination changes in both tidal flows illumination. Different combinations prey...

Interannual changes in juvenile abundance can validate interannual levels of settlement on collectors and address such postsettlement processes as density-dependent mortality. A strong pulse postlarval Jasus edwardsii recruitment took place near Wellington 1991–92, followed by much lower settlement. To determine whether abundances age would reflect this so the collector catches, divers estimated quarterly size juveniles at six sites, from 1993 to 2000. Juveniles younger than 2 years were...

A wave-operated nursery system was developed for growing hatchery-produced spat of the New Zealand dredge oyster Tiostrea lutaria (Hutton) through to a size (≈ 20 mm) suitable on-growing in conventional farming equipment. The pump-pot enabled cultch-free be transferred from hatchery upwellers at small (> 2 mm), thus avoiding need supply them with cultured algae maintain high growth rate. wave-activated pumping action pot maintained sufficient flow water achieve rapid held densities.