The contents of this Primefact include information on the following:. What are 'instream structures or other mechanisms that alter natural flows'? ... Why are instream structures installed and operated? What are the impacts of altering natural flow

• https://www.dpi.nsw.gov.au/fishing/threatened-species/legislation-and-approvals/habitat/publications/pubs/instream-structures
• 27 Apr 2016

They are medium to. dark grey above, fading to white on the belly. ... A notch is present immediately in front of the tail. Habitat and ecology.

• https://www.dpi.nsw.gov.au/fishing/closures/identifying/marine-or-estuarine-species/herbsts-nurse-shark
• 1 Jan 2019

within the program, such as fishing workshops, try fishing sessions, field days, school incursions and excursions, research programs, habitat restoration and in some regions water advisory. ... At the completion of the mentoring period you will receive

• https://www.dpi.nsw.gov.au/fishing/recreational/resources/fishcare-volunteers/training-for-fishcare-volunteers
• 7 Jun 2017

The eggs hatch 6-13 days later, with juveniles feeding freely within 3-4 weeks. ... After passing through the filters, the water is then recycled back to the tanks.

• https://www.dpi.nsw.gov.au/fishing/aquaculture/publications/species-freshwater/murray-cod-aquaculture-prospects
• 1 Jan 2021

The farm should be sited to take best advantage of the food resources. ... The blue mussel (Mytilus galloprovincialis) is a similar species to those farmed overseas.

• https://www.dpi.nsw.gov.au/fishing/aquaculture/publications/species-saltwater/blue-mussel-aquaculture-prospects
• 1 Jan 2021

Therefore, the rate of ammonia production of fish is proportional to the feeding rate. ... Ammonia is also produced during the aerobic decomposition of organic matter by bacteria.

• https://www.dpi.nsw.gov.au/fishing/aquaculture/publications/water-quality-management/monitoring-ammonia
• 27 Apr 2016

Larvae are found under rocks where they coexist with the Eastern Hawk Dragonfly. ... Habitat loss and degradation resulting from the removal of riparian (river bank) vegetation, drainage works and sedimentation;.

• https://www.dpi.nsw.gov.au/fishing/threatened-species/what-current/endangered-species2/sydney-hawk-dragonfly
• 1 Jan 2021

The appointed members and Chairperson were highly experienced and brought decades of experience to the Working Group. ... Feedback was invited using an online form available on the DPI website, and all feedback was considered.

• https://www.dpi.nsw.gov.au/fishing/commercial/harvest-strategies/spanner-crab-harvest-strategy-working-group
• 1 Jan 2021

Empty shells cannot be collected in the reserve because they provide homes for living organisms. ... Photo: Renata Pronk. Stunning views of Palm Beach from the top of Barrenjoey Head.

• https://www.dpi.nsw.gov.au/fishing/marine-protected-areas/aquatic-reserves/barrenjoey-head-aquatic-reserve
• 1 Jan 2017

SCUBA diving and snorkelling. SCUBA diving and snorkelling are renowned activities in the marine park. ... Snorkellers typically explore the most protected and sheltered areas, such as the Nursery.

• https://www.dpi.nsw.gov.au/fishing/marine-protected-areas/marine-parks/cape-byron-marine-park/scuba-diving-and-snorkelling
• 1 Jan 2024