Articles by Author: D P Cyrus

Search results for D P Cyrus

We found 61 results for you
  1. THE LAKE ST. LUCIA SYSTEM—A RESEARCH ASSESSMENT

    THE LAKE ST. LUCIA SYSTEM—A RESEARCH ASSESSMENT

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    This paper assesses the research undertaken at Lake St. Lucia over the past 25 years based on over 300 documents from that period. Trends related to both time and subject matter are evident, and these are considered in relation to...
  2. A REVIEW OF THE ICHTHYOFAUNA OF THE MHLATHUZE ESTUARY

    A REVIEW OF THE ICHTHYOFAUNA OF THE MHLATHUZE ESTUARY

    Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences
    The fish fauna of the Mhlathuze estuary was reviewed making reference to surveys dating from 1948 to 1997. The concept of Estuarine Dependence Category was employed to describe species affinities with the marine, estuarine and freshwater environments.
  3. The reproductive biology of <em>Solea bleekeri</em> (Teleostei) in Lake St Lucia on the south-east coast of Africa

    The reproductive biology of <em>Solea bleekeri</em> (Teleostei) in Lake St Lucia on the south-east coast of Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Solea bleekeri occurs throughout the predominantly muddy and highly turbid Lake St Lucia, with juveniles and adults being present throughout the year. Evidence is presented to support the hypothesis that S. bleekeri breeds in specific parts of the lake and...
  4. The larval fish assemblage at the mouth of the Kosi Estuary, KwaZulu-Natal, South Africa

    The larval fish assemblage at the mouth of the Kosi Estuary, KwaZulu-Natal, South Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    The composition of the larval fish assemblage at the mouth of the Kosi Estuary, KwaZulu-Natal, was investigated. Fish larvae were collected from a sample site adjacent to a rocky reef within the estuary, 200 m upstream from the mouth, on...
  5. Occurrence of fish larvae in the St Lucia Estuary, KwaZulu-Natal, South Africa

    Occurrence of fish larvae in the St Lucia Estuary, KwaZulu-Natal, South Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Ichthyoplankton samples were collected over 12 consecutive months. at a fixed station 4 km upstream from the mouth of the St Lucia Estuary, in order to study the recruitment of fish larvae into the estuary. In all, 51 690 fish...
  6. Composition, abundance and seasonality of fish larvae in the mouth of Durban Harbour, KwaZulu-natal, South Africa

    Composition, abundance and seasonality of fish larvae in the mouth of Durban Harbour, KwaZulu-natal, South Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Ichthyoplankton samples were collected every six weeks at night on consecutive ebb and flood tides over an 18-month period (June 1991–December 1992) at surface, middle and bottom depths near the entrance of Durban Harbour to investigate the composition, abundance, seasonality...
  7. FEEDING SUCCESSION AND ZONATION OF AQUATIC BIRDS AT FALSE BAY, LAKE ST LUCIA

    FEEDING SUCCESSION AND ZONATION OF AQUATIC BIRDS AT FALSE BAY, LAKE ST LUCIA

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Whitfield, A. K. & Cyrus, D. P. 1978. Feeding succession and zonation of aquatic birds at False Bay, Lake St Lucia. Ostrich 49:8-15.
  8. TURBIDITY AND OTHER PHYSICAL FACTORS IN NATAL ESTUARINE SYSTEMS PART 1: SELECTED ESTUARIES

    TURBIDITY AND OTHER PHYSICAL FACTORS IN NATAL ESTUARINE SYSTEMS PART 1: SELECTED ESTUARIES

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Data on turbidity and the factors influencing it, such as wind and substratum, were collected from eight representative estuaries along the Natal Coast. The results showed that Natal Estuaries can be divided into one of four groups, according to the...
  9. TURBIDITY AND OTHER PHYSICAL FACTORS IN NATAL ESTUARINE SYSTEMS PART 2: ESTUARINE LAKES

    TURBIDITY AND OTHER PHYSICAL FACTORS IN NATAL ESTUARINE SYSTEMS PART 2: ESTUARINE LAKES

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Data on turbidity, temperature and salinity and the factors which affect them, such as wind and substratum, were collected from Natal's two estuarine Lakes. The effects of wind and substratum, were collected from Natal's two estuarine Lakes. The effects of...